How do I migrate an SVN repository with history to a new Git repository

Question

I read the Git manual  FAQ  Git - SVN crash course  etc  and they all explain this and that  but nowhere can you find a simple instruction like   SVN repository in  svn   myserver path to svn repos  Git repository in  git   myserver path to git repos  git-do-the-magic-svn-import-with-history   svn   myserver path to svn repos   git   myserver path to git repos   I don t expect it to be that simple  and I don t expect it to be a single command  But I do expect it not to try to explain anything - just to say what steps to take given this example

User · Accepted Answer

Magic     git svn clone http   svn repo here trunk   Git and SVN operate very differently   You need to learn Git  and if you want to track changes from SVN upstream  you need to learn git-svn   The git-svn main page has a good examples section     git svn --help

User · Answer

Cleanly Migrate Your Subversion Repository To a Git Repository  First you have to create a file that maps your Subversion commit author names to Git commiters  say   authors txt   jmaddox   Jon Maddox  lt jon gmail com gt  bigpappa   Brian Biggs  lt bigpappa gmail com gt    Then you can download the Subversion data into a Git repository   mkdir repo  amp  amp  cd repo git svn init http   subversion repo --no-metadata git config svn authorsfile   authors txt git svn fetch   If you   re on a Mac  you can get git-svn from MacPorts by installing git-core  svn   If your subversion repository is on the same machine as your desired git repository  then you can use this syntax for the init step  otherwise all the same   git svn init file    home user repoName --no-metadata

User · Answer

Effectively using Git with Subversion is a gentle introduction to git-svn  For existing SVN repositories  git-svn makes this super easy  If you re starting a new repository  it s vastly easier to first create an empty SVN repository and then import using git-svn than it is going in the opposite direction  Creating a new Git repository then importing into SVN can be done  but it is a bit painful  especially if you re new to Git and hope to preserve the commit history

User · Answer

See the official git-svn manpage   In particular  look under  Basic Examples       Tracking and contributing to an entire Subversion-managed project  complete       with a trunk  tags and branches       Clone a repo  like git clone       git svn clone http   svn foo org project -T trunk -b branches -t tags

User · Answer

For GitLab users I ve put up a gist on how I migrated from SVN here  https   gist github com leftclickben 322b7a3042cbe97ed2af Steps to migrate from SVN to GitLab Setup  SVN is hosted at svn domain com au  SVN is accessible via http  other protocols should work   GitLab is hosted at git domain com au and   A group is created with the namespace dev-team  At least one user account is created  added to the group  and has an SSH key for the account being used for the migration  test using ssh git git domain com au   The project favourite-project is created in the dev-team namespace    The file users txt contains the relevant user details  one user per line  of the form username   First Last  lt address domain com au gt   where username is the username given in SVN logs    See first link in References section for details  in particular answer by user Casey    Versions  subversion version 1 6 17  r1128011  git version 1 9 1 GitLab version 7 2 1 ff1633f Ubuntu server 14 04  Commands bash git svn clone --stdlayout --no-metadata -A users txt  http   svn domain com au svn repository favourite-project cd favourite-project git remote add gitlab git git domain com au dev-team favourite-project git git push --set-upstream gitlab master  That s it   Reload the project page in GitLab web UI and you will see all commits and files now listed  Notes  If there are unknown users  the git svn clone command will stop  in which case  update users txt  cd favourite-project and git svn fetch will continue from where it stopped  The standard trunk-tags-branches layout for SVN repository is required  The SVN URL given to the git svn clone command stops at the level immediately above trunk   tags  and branches   The git svn clone command produces a lot of output  including some warnings at the top  I ignored the warnings

User · Answer

Pro Git 8 2 explains it  http   git-scm com book en Git-and-Other-Systems-Migrating-to-Git

User · Answer

As another aside  the git-stash command is a godsend when trying to git with git-svn dcommits   A typical process    set up git repo do some work on different files decide to check some of the work in  using git decide to svn-dcommit get the dreaded  cannot commit with a dirty index  error      The solution  requires git 1 5 3       git stash  git svn dcommit   git stash apply

User · Answer

TortoiseGit does this  see this blog post  http   jimmykeen net articles 03-nov-2012 how-migrate-from-svn-to-git-windows-using-tortoise-clients  Yeah  I know answering with links isn t splendid but it s a solution  eh

User · Answer

There are different methods to achieve this goal  I ve tried some of them and found really working one with just git and svn installed on Windows OS   Prerequisites     git on windows  I ve used this one  https   git-scm com   svn with console tools installed  I ve used tortoise svn    Dump file of your SVN repository   svnadmin dump  path to repository  gt  repo name svn dump   Steps to achieve final goal  move all repository with history to a git  firstly local git  then remote    Create empty repository  using console tools or tortoiseSVN  in directory REPO NAME FOLDER cd REPO NAME PARENT FOLDER  put dumpfile dump into REPO NAME PARENT FOLDER svnadmin load REPO NAME FOLDER  lt  dumpfile dump Wait for this operation  it may be long This command is silent  so open second cmd window   svnserve -d -R --root REPO NAME FOLDER  Why not just use file             Cause next command will fail with Unable to open     to URL   thanks to the answer https   stackoverflow com a 6300968 4953065 Create new folder SOURCE GIT FOLDER cd SOURCE GIT FOLDER git svn clone svn   localhost  Wait for this operation    Finally  what do we got   Lets check our Local repository     git log   See your previous commits  If yes - okay  So now you have fully functional local git repository with your sources and old svn history  Now  if you want to move it to some server  use the following commands     git remote add origin https   fullurlpathtoyourrepo reponame git git push -u origin --all   pushes up the repo and its refs for the first time git push -u origin --tags   pushes up any tags   In my case  I ve dont need tags command cause my repo dont have tags   Good luck

User · Answer

I suggest getting comfortable with Git before trying to use git-svn constantly  i e  keeping SVN as the centralized repo and using Git locally   However  for a simple migration with all the history  here are the few simple steps   Initialize the local repo   mkdir project cd project git svn init http   svn url   Mark how far back you want to start importing revisions   git svn fetch -r42    or just  git svn fetch  for all revs   Actually fetch everything since then   git svn rebase   You can check the result of the import with Gitk  I m not sure if this works on Windows  it works on OSX and Linux   gitk   When you ve got your SVN repo cloned locally  you may want to push it to a centralized Git repo for easier collaboration   First create your empty remote repo  maybe on GitHub     git remote add origin git github com user project-name git   Then  optionally sync your main branch so the pull operation will automatically merge the remote master with your local master  when both contain new stuff   git config branch master remote origin git config branch master merge refs heads master   After that  you may be interested in trying out my very own git remote branch tool  which helps dealing with remote branches   First explanatory post   Git remote branches   Follow-up for the most recent version   Time to git collaborating with git remote branch

User · Answer

I  m on a windows machine and made a small Batch to transfer a SVN repo with history  but without branches  to a GIT repo by just calling  transfer bat http   svn my address svn myrepo trunk https   git my address orga myrepo  Perhaps anybody can use it  It creates a TMP-folder checks out the SVN repo there with git and adds the new origin and pushes it    and deletes the folder again    echo off  SET FROM  1  SET TO  2  SET TMP tmp  random   echo from    FROM   echo to      TO   echo tmp     TMP   pause  git svn clone  --no-metadata --authors-file users txt  FROM   TMP    cd  TMP   git remote add origin  TO   git push --set-upstream origin master   cd     echo delete  TMP       pause  rmdir  s  q  TMP    You still need the users txt with your user-mappings like  User1   User One  lt u 1 xxx com gt

User · Answer

Download the Ruby installer for Windows and install the latest version with it  Add Ruby executables to your path    Install svn2git Start menu -  All programs -  Ruby -  Start a command prompt with Ruby Then type    gem install svn2git    and enter  Migrate Subversion repository Open a Ruby command prompt and go to the directory where the files are to be migrated  Then svn2git http    domain name  svn   repository root  It may take few hours to migrate the project to Git depends on the project code size  This major step helps in creating the Git repository structure as mentioned below   SVN   Project components  trunk     --       Git master SVN   Project components  branches  --   Git branches SVN   Project components  tags      --       Git tags   Create the remote repository and push the changes

User · Answer

I  m on a windows machine and made a small Batch to transfer a SVN repo with history  but without branches  to a GIT repo by just calling  transfer bat http   svn my address svn myrepo trunk https   git my address orga myrepo  Perhaps anybody can use it  It creates a TMP-folder checks out the SVN repo there with git and adds the new origin and pushes it    and deletes the folder again    echo off  SET FROM  1  SET TO  2  SET TMP tmp  random   echo from    FROM   echo to      TO   echo tmp     TMP   pause  git svn clone  --no-metadata --authors-file users txt  FROM   TMP    cd  TMP   git remote add origin  TO   git push --set-upstream origin master   cd     echo delete  TMP       pause  rmdir  s  q  TMP    You still need the users txt with your user-mappings like  User1   User One  lt u 1 xxx com gt

User · Answer

I ve posted an step by step guide  here  to convert svn in to git including converting svn tags in to git tags and svn branches in to git branches   Short version   1  clone svn from an specific revision number   the revision number must be the oldest you want to migrate   git svn clone --username yourSvnUsername -T trunk subdir -t tags subdir -b branches subdir -r aRevisionNumber svn url gitreponame   2  fetch svn data  This step it s the one it takes most time   cd gitreponame git svn fetch   repeat git svn fetch until finishes without error  3  get master branch updated  git svn rebase   4  Create local branches from svn branches by copying references  cp  git refs remotes origin    git refs heads    5  convert svn tags into git tags  git for-each-ref refs remotes origin tags   sed  s         xdigit     40      refs remotes origin tags          2  1 g    while read p  do git tag -m  tag from svn   p  done   6  Put a repository at a better place like github  git remotes add newrepo git github com aUser aProjectName git git push newrepo refs heads   git push --tags newrepo   If you want more details  read my post or ask me

User · Answer

This guide on atlassian s website is one of the best I have found   https   www atlassian com git migration  This tool - https   bitbucket org atlassian svn-migration-scripts - is also really useful for generating your authors txt among other things

User · Answer

I ve posted an step by step guide  here  to convert svn in to git including converting svn tags in to git tags and svn branches in to git branches   Short version   1  clone svn from an specific revision number   the revision number must be the oldest you want to migrate   git svn clone --username yourSvnUsername -T trunk subdir -t tags subdir -b branches subdir -r aRevisionNumber svn url gitreponame   2  fetch svn data  This step it s the one it takes most time   cd gitreponame git svn fetch   repeat git svn fetch until finishes without error  3  get master branch updated  git svn rebase   4  Create local branches from svn branches by copying references  cp  git refs remotes origin    git refs heads    5  convert svn tags into git tags  git for-each-ref refs remotes origin tags   sed  s         xdigit     40      refs remotes origin tags          2  1 g    while read p  do git tag -m  tag from svn   p  done   6  Put a repository at a better place like github  git remotes add newrepo git github com aUser aProjectName git git push newrepo refs heads   git push --tags newrepo   If you want more details  read my post or ask me

User · Answer

GitHub has an importer  Once you ve created the repository  you can import from an existing repository  via its URL  It will ask for your credentials if applicable and go from there   As it s running it will find authors  and you can simply map them to users on GitHub   I have used it for a few repositories now  and it s pretty accurate and much faster too  It took 10 minutes for a repository with  4000 commits  and after it took my friend four days

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I used the following script to read a text file that has a list of all my SVN repositories and convert them to Git  and later use git clone --bare to convert to a bare Git repository      bin bash file  list txt  while IFS  read -r repo name do  printf   s n    repo name   sudo git svn clone --shared --preserve-empty-dirs --authors-file users txt file    programs svn  repo name  sudo git clone --bare  programs git  repo name  repo name git  sudo chown -R www-data www-data  repo name git  sudo rm -rf  repo name done  lt   file    list txt has the format   repo1 name repo2 name   And users txt has the format       no author    Prince Rogers  lt prince rogers nelson payesley park org gt    www-data is the Apache web server user  and permission is needed to push changes over HTTP

User · Answer

Create a users file  i e  users txt  for mapping SVN users to Git   user1   First Last Name  lt email address com gt  user2   First Last Name  lt email address com gt        You can use this one-liner to build a template from your existing SVN repository   svn log -q   awk -F        r   sub            2   sub            2   print  2      2   lt   2  gt       sort -u  gt  users txt   SVN will stop if it finds a missing SVN user not in the file  But after that you can update the file and pick-up where you left off   Now pull the SVN data from the repository   git svn clone --stdlayout --no-metadata --authors-file users txt svn   hostname path dest dir-tmp   This command will create a new Git repository in dest dir-tmp and start pulling the SVN repository  Note that the  --stdlayout  flag implies you have the common  trunk   branches   tags   SVN layout  If your layout differs  become familiar with --tags  --branches  --trunk options  in general git svn help    All common protocols are allowed  svn     http     https     The URL should target the base repository  something like http   svn mycompany com myrepo repository  The URL string must not include  trunk   tag or  branches   Note that after executing this command it very often looks like the operation is  hanging freezed   and it s quite normal that it can be stuck for a long time after initializing the new repository  Eventually you will then see log messages which indicates that it s migrating   Also note that if you omit the --no-metadata flag  Git will append information about the corresponding SVN revision to the commit message  i e  git-svn-id  svn   svn mycompany com myrepo  lt branchname trunk gt   lt RevisionNumber gt   lt Repository UUID gt    If a user name is not found  update your users txt file then   cd dest dir-tmp git svn fetch   You might have to repeat that last command several times  if you have a large project  until all of the Subversion commits have been fetched   git svn fetch   When completed  Git will checkout the SVN trunk into a new branch  Any other branches are setup as remotes  You can view the other SVN branches with   git branch -r   If you want to keep other remote branches in your repository  you want to create a local branch for each one manually    Skip trunk master    If you don t do this  the branches won t get cloned in the final step   git checkout -b local branch remote branch   It s OK if local branch and remote branch are the same name   Tags are imported as branches  You have to create a local branch  make a tag and delete the branch to have them as tags in Git  To do it with tag  v1    git checkout -b tag v1 remotes tags v1 git checkout master git tag v1 tag v1 git branch -D tag v1   Clone your GIT-SVN repository into a clean Git repository   git clone dest dir-tmp dest dir rm -rf dest dir-tmp cd dest dir   The local branches that you created earlier from remote branches will only have been copied as remote branches into the new cloned repository   Skip trunk master   For each branch you want to keep   git checkout -b local branch origin remote branch   Finally  remove the remote from your clean Git repository that points to the now deleted temporary repository   git remote rm origin

User · Answer

For this  I have used svn2git library with the following procedure      sudo apt-get install git-core git-svn ruby   sudo gem install svn2git   svn log --quiet   grep -E  r 0-9               cut -d    -f2   sed  s    g    sort   uniq   authors txt  this command is for mapping the authors    Above step should be performed in the folder that you are going to convert from svn to git      Add one mapping per line in authors txt like this   anand   Anand Tripathi  lt email id gt  trip   Tripathi Anand  lt email id gt    Create a folder for a new git repository and execute the command below having the path of authors txt  svn2git  lt svn repo path gt  --nobranches --notags --notrunk --no-minimize-url --username  lt user name gt  --verbose  --authors  lt author txt path gt   If no trunk and no tag and branch is present then have to execute the above command else if root is trunk then mention rootistrunk or trunk is present then --trunk  lt trunk name gt       git remote add origin    git push --all origin     git push --tags origin

User · Answer

GitHub has an importer  Once you ve created the repository  you can import from an existing repository  via its URL  It will ask for your credentials if applicable and go from there   As it s running it will find authors  and you can simply map them to users on GitHub   I have used it for a few repositories now  and it s pretty accurate and much faster too  It took 10 minutes for a repository with  4000 commits  and after it took my friend four days

User · Answer

See the official git-svn manpage   In particular  look under  Basic Examples       Tracking and contributing to an entire Subversion-managed project  complete       with a trunk  tags and branches       Clone a repo  like git clone       git svn clone http   svn foo org project -T trunk -b branches -t tags

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SubGit  vs Blue Screen of Death   subgit import --svn-url url   svn serv Bla Bla  directory path Local git Repo   It s all     To update from SVN  a Git repository created by the first command   subgit import  directory path Local git Repo     I used a way to migrate to Git instantly for a huge repository   Of course you need some preparation   But you may don t stop development process  at all   Here is my way   My solution looks like    Migrate SVN to a Git repository Update the Git repository just before team s switching to    Migration takes a lot of time for a big SVN repository   But updating of the completed migration just seconds   Of course I m using SubGit  mama  git-svn makes me Blue Screen of Death  Just constantly  And git-svn is boring me with Git s  filename too long  fatal error   STEPS  1  Download SubGit  2  Prepare migrate and updating commands   Let s say we do it for Windows  it s trivial to port to Linux    In a SubGit s installation bin directory  subgit-2 X X bin   create two  bat files   Content of a file command for the migration   start    subgit import --svn-url url   svn serv Bla Bla  directory path Local git Repo   The  start  command is optional here  Windows   It ll allow to see errors on start and left a shell opened after completion of the SubGit   You may add here additional parameters similar to git-svn  I m using only --default-domain myCompanyDomain com to fix the domain of the email address of SVN authors   I have the standard SVN repository s structure  trunk branches tags  and we didn t have troubles with  authors mapping   So I m doing nothing any more    If you want to migrate tags like branches or your SVN have multiple branches tags folders you may consider to use the more verbose SubGit approach   Tip 1  Use --minimal-revision YourSvnRevNumber to see fast how things boils out  some kind of a debugging   Especially useful is to see resolved author names or emails   Or to limit the migration history depth   Tip 2  Migration may be interrupted  Ctrl   C  and restored by running of the next updating command file   I don t advise doing this for big repositories  I have received  Out of memory Java Windows exception    Tip 3  Better to create a copy of your result bare repository   Content of a file command for updating   start    subgit import  directory path Local git Repo   You may run it any amount of times when you want to obtain the last team s commits to your Git repository   Warning  Don t touch your bare repository  creation of branches for example    You ll take the next fatal error      Unrecoverable error  are out of sync and cannot be synced     Translating Subversion revisions to Git commits      3  Run the first command file  It ll take a loooong time for a big repository  30 hours for my humble repository   It s all   You may update your Git repository from SVN at any time any amount of times by running the second file command  And before switching of your development team to Git   It ll take just seconds       There s one more useful task   Push your local Git repository to a remote Git repository  Is it your case  Let s proceed    Configure your remotes   Run     git remote add origin url   your repo git    Prepare to initial send of your huge local Git repository to a remote repository   By default your Git can t send big chunks  fatal  The remote end hung up unexpectedly  Let s run for it   git config --global http postBuffer 1073741824   524288000 - 500 MB 1073741824 - 1 GB  etc   Fix your local certificate troubles  If your git-server uses a broken certificate   I have disabled certificates   Also your Git server may have a request amount limitations needing to be corrected    Push all migration to the team s remote Git repository    Run with a local Git   git push origin --mirror    git push origin       for old Git versions   If you get the following  error  cannot spawn git  No such file or directory    For me the full recreation of my repository solves this error  30 hours   You can try the next commands  git push origin --all git push origin --tags   Or try to reinstall Git  useless for me   Or you may create branches from all you tags and push them  Or  or  or

User · Answer

reposurgeon  For complicated cases  reposurgeon by Eric S  Raymond is the tool of choice  In addition to SVN  it supports many other version control systems via the fast-export format  and also CVS  The author reports successful conversions of ancient repositories such as Emacs and FreeBSD   The tool apparently aims at near perfect conversion  such as converting SVN s svn ignore properties to  gitignore files  even for difficult repository layouts with a long history  For many cases  other tools might be easier to use   Before delving into the documentation of the reposurgeon command line  be sure to read the excellent DVCS migration guide which goes over the conversion process step by step

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Cleanly Migrate Your Subversion Repository To a Git Repository  First you have to create a file that maps your Subversion commit author names to Git commiters  say   authors txt   jmaddox   Jon Maddox  lt jon gmail com gt  bigpappa   Brian Biggs  lt bigpappa gmail com gt    Then you can download the Subversion data into a Git repository   mkdir repo  amp  amp  cd repo git svn init http   subversion repo --no-metadata git config svn authorsfile   authors txt git svn fetch   If you   re on a Mac  you can get git-svn from MacPorts by installing git-core  svn   If your subversion repository is on the same machine as your desired git repository  then you can use this syntax for the init step  otherwise all the same   git svn init file    home user repoName --no-metadata

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I just wanted to add my contribution to the Git community  I wrote a simple bash script which automates the full import  Unlike other migration tools  this tool relies on native git instead of jGit  This tool also supports repositories with a large revision history and or large blobs  It s available via github   https   github com onepremise SGMS  This script will convert projects stored in SVN with the following format    trunk    Project1    Project2  branches       Project1       Project2  tags   Project1   Project2   This scheme is also popular and supported as well    Project1       trunk       branches       tags  Project2       trunk       branches       tags   Each project will get synchronized over by project name   Ex    migration https   svnurl com basepath project1   If you wish to convert the full repo over  use the following syntax   Ex    migration https   svnurl com basepath

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You have to Install  git git-svn   Copied from this link http   john albin net git convert-subversion-to-git   1  Retrieve a list of all Subversion committers  Subversion simply lists the username for each commit  Git   s commits have much richer data  but at its simplest  the commit author needs to have a name and email listed  By default the git-svn tool will just list the SVN username in both the author and email fields  But with a little bit of work  you can create a list of all SVN users and what their corresponding Git name and emails are  This list can be used by git-svn to transform plain svn usernames into proper Git committers   From the root of your local Subversion checkout  run this command   svn log -q   awk -F        r   sub            2   sub            2   print  2      2   lt   2  gt       sort -u  gt  authors-transform txt   That will grab all the log messages  pluck out the usernames  eliminate any duplicate usernames  sort the usernames and place them into a    authors-transform txt    file  Now edit each line in the file  For example  convert   jwilkins   jwilkins  lt jwilkins gt    into this   jwilkins   John Albin Wilkins  lt johnalbin example com gt    2  Clone the Subversion repository using git-svn  git svn clone  SVN repo URL  --no-metadata -A authors-transform txt --stdlayout   temp   This will do the standard git-svn transformation  using the authors-transform txt file you created in step 1  and place the git repository in the      temp    folder inside your home directory   3  Convert svn ignore properties to  gitignore  If your svn repo was using svn ignore properties  you can easily convert this to a  gitignore file using   cd   temp git svn show-ignore  gt   gitignore git add  gitignore git commit -m  Convert svn ignore properties to  gitignore     4  Push repository to a bare git repository  First  create a bare repository and make its default branch match svn   s    trunk    branch name   git init --bare   new-bare git cd   new-bare git git symbolic-ref HEAD refs heads trunk   Then push the temp repository to the new bare repository   cd   temp git remote add bare   new-bare git git config remote bare push  refs remotes   refs heads    git push bare   You can now safely delete the   temp repository   5  Rename    trunk    branch to    master     Your main development branch will be named    trunk    which matches the name it was in Subversion  You   ll want to rename it to Git   s standard    master    branch using   cd   new-bare git git branch -m trunk master   6  Clean up branches and tags  git-svn makes all of Subversions tags into very-short branches in Git of the form    tags name     You   ll want to convert all those branches into actual Git tags using   cd   new-bare git git for-each-ref --format    refname   refs heads tags   cut -d   -f 4   while read ref do   git tag   ref   refs heads tags  ref     git branch -D  tags  ref   done   This step will take a bit of typing   -  But  don   t worry  your unix shell will provide a   secondary prompt for the extra-long command that starts with git for-each-ref

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Converting svn submodule folder  MyModule  into git with history without tags nor branches    git svn clone --no-metadata --trunk SomeFolder1 SomeFolder2 SomeFolder3 MyModule http   svnhost port repo root folder MyModule temp -A C  cheetah svn authors-transform txt git clone MyModule temp MyModule cd MyModule git flow init git remote set-url origin https   userid stashhost stash scm xyzxyz MyModule git git push -u origin master git push -u origin develop   To retain svn ignore list use the above comments after step 1

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There is a new solution for smooth migration from Subversion to Git  or for using both simultaneously   SubGit    I m working on this project myself  We use SubGit in our repositories - some of my teammates use Git and some Subversion and so far it works very well   To migrate from Subversion to Git with SubGit you need to run     subgit install svn repos     TRANSLATION SUCCESSFUL    After that you ll get Git repository in svn repos  git and may clone it  or just continue to use Subversion and this new Git repository together  SubGit will make sure that both are always kept in sync    In case your Subversion repository contains multiple projects  then multiple Git repositories will be created in svn repos git directory  To customize translation before running it do the following     subgit configure svn repos   edit svn repos conf subgit conf  change mapping  add authors mapping  etc    subgit install svn repos   With SubGit you may migrate to pure Git  not git-svn  and start using it while still keeping Subversion as long as you need it  for your already configured build tools  for instance    Hope this helps

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I just wanted to add my contribution to the Git community  I wrote a simple bash script which automates the full import  Unlike other migration tools  this tool relies on native git instead of jGit  This tool also supports repositories with a large revision history and or large blobs  It s available via github   https   github com onepremise SGMS  This script will convert projects stored in SVN with the following format    trunk    Project1    Project2  branches       Project1       Project2  tags   Project1   Project2   This scheme is also popular and supported as well    Project1       trunk       branches       tags  Project2       trunk       branches       tags   Each project will get synchronized over by project name   Ex    migration https   svnurl com basepath project1   If you wish to convert the full repo over  use the following syntax   Ex    migration https   svnurl com basepath

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You have to Install  git git-svn   Copied from this link http   john albin net git convert-subversion-to-git   1  Retrieve a list of all Subversion committers  Subversion simply lists the username for each commit  Git   s commits have much richer data  but at its simplest  the commit author needs to have a name and email listed  By default the git-svn tool will just list the SVN username in both the author and email fields  But with a little bit of work  you can create a list of all SVN users and what their corresponding Git name and emails are  This list can be used by git-svn to transform plain svn usernames into proper Git committers   From the root of your local Subversion checkout  run this command   svn log -q   awk -F        r   sub            2   sub            2   print  2      2   lt   2  gt       sort -u  gt  authors-transform txt   That will grab all the log messages  pluck out the usernames  eliminate any duplicate usernames  sort the usernames and place them into a    authors-transform txt    file  Now edit each line in the file  For example  convert   jwilkins   jwilkins  lt jwilkins gt    into this   jwilkins   John Albin Wilkins  lt johnalbin example com gt    2  Clone the Subversion repository using git-svn  git svn clone  SVN repo URL  --no-metadata -A authors-transform txt --stdlayout   temp   This will do the standard git-svn transformation  using the authors-transform txt file you created in step 1  and place the git repository in the      temp    folder inside your home directory   3  Convert svn ignore properties to  gitignore  If your svn repo was using svn ignore properties  you can easily convert this to a  gitignore file using   cd   temp git svn show-ignore  gt   gitignore git add  gitignore git commit -m  Convert svn ignore properties to  gitignore     4  Push repository to a bare git repository  First  create a bare repository and make its default branch match svn   s    trunk    branch name   git init --bare   new-bare git cd   new-bare git git symbolic-ref HEAD refs heads trunk   Then push the temp repository to the new bare repository   cd   temp git remote add bare   new-bare git git config remote bare push  refs remotes   refs heads    git push bare   You can now safely delete the   temp repository   5  Rename    trunk    branch to    master     Your main development branch will be named    trunk    which matches the name it was in Subversion  You   ll want to rename it to Git   s standard    master    branch using   cd   new-bare git git branch -m trunk master   6  Clean up branches and tags  git-svn makes all of Subversions tags into very-short branches in Git of the form    tags name     You   ll want to convert all those branches into actual Git tags using   cd   new-bare git git for-each-ref --format    refname   refs heads tags   cut -d   -f 4   while read ref do   git tag   ref   refs heads tags  ref     git branch -D  tags  ref   done   This step will take a bit of typing   -  But  don   t worry  your unix shell will provide a   secondary prompt for the extra-long command that starts with git for-each-ref

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I highly recommend this short series of screencasts I just discovered  The author walks you through the basic operations  and showcases some more advanced usages

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Several answers here refer to https   github com nirvdrum svn2git  but for large repositories this can be slow  I had a try using https   github com svn-all-fast-export svn2git instead which is a tool with exactly the same name but was used to migrate KDE from SVN to Git   Slightly more work to set it up but when done the conversion itself for me took minutes where the other script spent hours

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I suggest getting comfortable with Git before trying to use git-svn constantly  i e  keeping SVN as the centralized repo and using Git locally   However  for a simple migration with all the history  here are the few simple steps   Initialize the local repo   mkdir project cd project git svn init http   svn url   Mark how far back you want to start importing revisions   git svn fetch -r42    or just  git svn fetch  for all revs   Actually fetch everything since then   git svn rebase   You can check the result of the import with Gitk  I m not sure if this works on Windows  it works on OSX and Linux   gitk   When you ve got your SVN repo cloned locally  you may want to push it to a centralized Git repo for easier collaboration   First create your empty remote repo  maybe on GitHub     git remote add origin git github com user project-name git   Then  optionally sync your main branch so the pull operation will automatically merge the remote master with your local master  when both contain new stuff   git config branch master remote origin git config branch master merge refs heads master   After that  you may be interested in trying out my very own git remote branch tool  which helps dealing with remote branches   First explanatory post   Git remote branches   Follow-up for the most recent version   Time to git collaborating with git remote branch

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If you are using SourceTree you can do this directly from the app  Goto File -  New Clone then do the following     Enter the remote SVN URL as the  Source Path   URL   Enter your credentials when prompted  Enter the local folder location as the  Destination path     Give it a name   In the advanced options select  Git  from the dropdown in  Create local repository of type   You can optionally specify a revision to clone from  Hit Clone    Open the repo in SourceTree and you ll see your commit messages have been migrated too   Now go to Repository -  Repository Settings and add the new remote repo details  Delete the SVN remote if you wish  I did this through the  Edit Config File  option   Push the code to the new remote repo when you are ready and code freely

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Cleanly Migrate Your Subversion Repository To a Git Repository  First you have to create a file that maps your Subversion commit author names to Git commiters  say   authors txt   jmaddox   Jon Maddox  lt jon gmail com gt  bigpappa   Brian Biggs  lt bigpappa gmail com gt    Then you can download the Subversion data into a Git repository   mkdir repo  amp  amp  cd repo git svn init http   subversion repo --no-metadata git config svn authorsfile   authors txt git svn fetch   If you   re on a Mac  you can get git-svn from MacPorts by installing git-core  svn   If your subversion repository is on the same machine as your desired git repository  then you can use this syntax for the init step  otherwise all the same   git svn init file    home user repoName --no-metadata

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If you are using SourceTree you can do this directly from the app  Goto File -  New Clone then do the following     Enter the remote SVN URL as the  Source Path   URL   Enter your credentials when prompted  Enter the local folder location as the  Destination path     Give it a name   In the advanced options select  Git  from the dropdown in  Create local repository of type   You can optionally specify a revision to clone from  Hit Clone    Open the repo in SourceTree and you ll see your commit messages have been migrated too   Now go to Repository -  Repository Settings and add the new remote repo details  Delete the SVN remote if you wish  I did this through the  Edit Config File  option   Push the code to the new remote repo when you are ready and code freely

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We can use git svn clone commands as below    svn log -q  lt SVN URL gt    awk -F        r   sub            2   sub            2   print  2      2   lt   2  gt       sort -u  gt  authors txt   Above command will create authors file from SVN commits    svn log --stop-on-copy  lt SVN URL gt    Above command will give you first revision number when your SVN project got created    git svn clone -r lt SVN REV NO gt  HEAD --no-minimize-url --stdlayout --no-metadata --authors-file authors txt  lt SVN URL gt    Above command will create the Git repository in local   Problem is that it won t convert branches and tags to push  You will have to do them manually  For example below for branches     git remote add origin https   github com pankaj0323 JDProjects git   git branch -a   master   remotes origin MyDevBranch   remotes origin tags MyDevBranch-1 0   remotes origin trunk    git checkout -b MyDevBranch origin MyDevBranch Branch MyDevBranch set up to track remote branch MyDevBranch from origin  Switched to a new branch  MyDevBranch    git branch -a   MyDevBranch   master   remotes origin MyDevBranch   remotes origin tags MyDevBranch-1 0   remotes origin trunk     For tags    git checkout origin tags MyDevBranch-1 0 Note  checking out  origin tags MyDevBranch-1 0   You are in  detached HEAD  state  You can look around  make experimental changes and commit them  and you can discard any commits you make in this state without impacting any branches by performing another checkout   If you want to create a new branch to retain commits you create  you may do so  now or later  by using -b with the checkout command again  Example     git checkout -b new branch name  HEAD is now at 3041d81    Creating a tag   git branch -a    detached from origin tags MyDevBranch-1 0    MyDevBranch   master   remotes origin MyDevBranch   remotes origin tags MyDevBranch-1 0   remotes origin trunk   git tag -a MyDevBranch-1 0 -m  creating tag   git tag MyDevBranch-1 0     Now push master  branches and tags to remote git repository     git push origin master MyDevBranch MyDevBranch-1 0 Counting objects  14  done  Delta compression using up to 8 threads  Compressing objects  100   11 11   done  Writing objects  100   14 14   2 28 KiB   0 bytes s  done  Total 14  delta 3   reused 0  delta 0  To https   github com pankaj0323 JDProjects git     new branch       master - gt  master     new branch       MyDevBranch - gt  MyDevBranch     new tag          MyDevBranch-1 0 - gt  MyDevBranch-1 0     svn2git utility  svn2git utility removes manual efforts with branches and tags   Install it using command sudo gem install svn2git  After that run below command      svn2git  lt SVN URL gt  --authors authors txt --revision  lt SVN REV NO gt    Now you can list the branches  tags and push them easily     git remote add origin https   github com pankaj0323 JDProjects git   git branch -a   MyDevBranch   master   remotes svn MyDevBranch   remotes svn trunk   git tag   MyDevBranch-1 0   git push origin master MyDevBranch MyDevBranch-1 0   Imagine you have 20 branches and tags  obviously svn2git will save you a lot of time and that s why I like it better than native commands  It s a nice wrapper around native git svn clone command    For a complete example  refer my blog entry

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Download the Ruby installer for Windows and install the latest version with it  Add Ruby executables to your path    Install svn2git Start menu -  All programs -  Ruby -  Start a command prompt with Ruby Then type    gem install svn2git    and enter  Migrate Subversion repository Open a Ruby command prompt and go to the directory where the files are to be migrated  Then svn2git http    domain name  svn   repository root  It may take few hours to migrate the project to Git depends on the project code size  This major step helps in creating the Git repository structure as mentioned below   SVN   Project components  trunk     --       Git master SVN   Project components  branches  --   Git branches SVN   Project components  tags      --       Git tags   Create the remote repository and push the changes

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First  credit to the answer from  cmcginty  It was a great starting point for me  and much of what I ll post here borrowed heavily from it  However  the repos that I was moving have years of history which led to a few issues following that answer to the letter  hundreds of branches and tags that would need to be manually moved for one  read more later   So after hours of searching and trial and error I was able to put together a script which allowed me to easily move several projects from SVN to GIT  and I ve decided to share my findings here in case anyone else is in my shoes   lt tl dr gt  Let s get started  First  create an  Authors  file which will translate basic svn users to more complex git users  The easiest way to do this is using a command to extract all users from the svn repo you are going to move  svn log -q   awk -F        r   sub  quot    quot    quot  quot    2   sub  quot    quot    quot  quot    2   print  2 quot     quot  2 quot   lt  quot  2 quot  gt  quot      sort -u  gt  authors-transform txt  This will produce a file called authors-transform txt with a line for each user that has made a change in the svn repo it was ran from  someuser   someuser  lt someuser gt   Update to include full name and email for git someuser   Some User  lt someuser somewhere com gt   Now start the clone using your authors file git svn clone --stdlayout --no-metadata -r854 HEAD --authors-file authors-transform txt https   somesvnserver somerepo  temp   --stdlayout indicates that the svn repo follows the standard  trunk  branches  tags layout --no-metadata tells git not to stamp metadata relating to the svn commits on each git commit  If this is not a one-way conversion remove this tag -r854 HEAD only fetches history from revision 854 up  This is where I hit my first snag  the repo I was converting had a  corrupted  commit at revision 853 so it would not clone  Using this parameter allows you to only clone part of the history  temp is the name of the directory that will be created to initialize the new git repo  This step can take awhile  particularly on a large or old repo  roughly 18 hours for one of ours   You can also use that -r switch to only take a small history to see the clone  and fetch the rest later  Move to the new directory cd temp  Fetch any missing history if you only pulled partial in clone git svn fetch  Tags are created as branches during cloning  If you only have a few you can convert them one at a time  git 1 0 0 origin tags 1 0 0  However  this is tedious if you have hundreds of tags  so the following script worked for me  for brname in  git branch -r   grep tags   awk   gsub              quot  quot   1   print  1     do echo  brname  tname   brname 5   echo  tname  git tag  tname origin tags  tname  done  You also need to checkout all branches you want to keep git checkout -b branchname origin branches branchname  And if you have a lot of branches as well  this script may help for brname in  git branch -r   grep -v master   grep -v HEAD   grep -v trunk   grep -v tags   awk   gsub              quot  quot   1   print  1     do echo  brname  git checkout -b  brname origin  brname  done  This will ignore the trunk branch  as it will already be checked out as master and save a step later deleting the duplicate branch  as well as ignoring the  tags that we already converted  Now is a good time to take a look at the new repo and make sure you have a local branch or tag for anything you want to keep as remote branches will be dropped in a moment  Ok  now lets clone everything we ve checked out to a clean repo  named temp2 here  cd    git clone temp temp2 cd temp2  Now we ll need to checkout all of the branches one more time before pushing them to their final remote  so follow your favorite method from above  If you re following gitflow you can rename your working branch to develop  git checkout -b WORKING git branch -m develop git push origin --delete WORKING git push origin -u develop  Now  if everything looks good  you re ready to push to your git repository git remote set-url origin https   somebitbucketserver somerepo git git push -u origin --all git push origin --tags  I did run into one final issue which was that Control Freak initially blocked me from pushing tags that I didn t create  so if your team uses Control Freak you may need to disable or adjust that setting for your initial push

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Several answers here refer to https   github com nirvdrum svn2git  but for large repositories this can be slow  I had a try using https   github com svn-all-fast-export svn2git instead which is a tool with exactly the same name but was used to migrate KDE from SVN to Git   Slightly more work to set it up but when done the conversion itself for me took minutes where the other script spent hours

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Converting svn submodule folder  MyModule  into git with history without tags nor branches    git svn clone --no-metadata --trunk SomeFolder1 SomeFolder2 SomeFolder3 MyModule http   svnhost port repo root folder MyModule temp -A C  cheetah svn authors-transform txt git clone MyModule temp MyModule cd MyModule git flow init git remote set-url origin https   userid stashhost stash scm xyzxyz MyModule git git push -u origin master git push -u origin develop   To retain svn ignore list use the above comments after step 1

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GitHub now has a feature to import from an SVN repository  I never tried it  though

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Effectively using Git with Subversion is a gentle introduction to git-svn  For existing SVN repositories  git-svn makes this super easy  If you re starting a new repository  it s vastly easier to first create an empty SVN repository and then import using git-svn than it is going in the opposite direction  Creating a new Git repository then importing into SVN can be done  but it is a bit painful  especially if you re new to Git and hope to preserve the commit history

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I used the following script to read a text file that has a list of all my SVN repositories and convert them to Git  and later use git clone --bare to convert to a bare Git repository      bin bash file  list txt  while IFS  read -r repo name do  printf   s n    repo name   sudo git svn clone --shared --preserve-empty-dirs --authors-file users txt file    programs svn  repo name  sudo git clone --bare  programs git  repo name  repo name git  sudo chown -R www-data www-data  repo name git  sudo rm -rf  repo name done  lt   file    list txt has the format   repo1 name repo2 name   And users txt has the format       no author    Prince Rogers  lt prince rogers nelson payesley park org gt    www-data is the Apache web server user  and permission is needed to push changes over HTTP

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I used the svn2git script and works like a charm

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See the official git-svn manpage   In particular  look under  Basic Examples       Tracking and contributing to an entire Subversion-managed project  complete       with a trunk  tags and branches       Clone a repo  like git clone       git svn clone http   svn foo org project -T trunk -b branches -t tags

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Here is a simple shell script with no dependencies that will convert one or more SVN repositories to git and push them to GitHub   https   gist github com NathanSweet 7327535  In about 30 lines of script it  clones using git SVN  creates a  gitignore file from SVN  ignore properties  pushes into a bare git repository  renames SVN trunk to master  converts SVN tags to git tags  and pushes it to GitHub while preserving the tags   I went thru a lot of pain to move a dozen SVN repositories from Google Code to GitHub  It didn t help that I used Windows  Ruby was all kinds of broken on my old Debian box and getting it working on Windows was a joke  Other solutions failed to work with Cygwin paths  Even once I got something working  I couldn t figure out how to get the tags to show up on GitHub  the secret is --follow-tags    In the end I cobbled together two short and simple scripts  linked above  and it works great  The solution does not need to be any more complicated than that

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I highly recommend this short series of screencasts I just discovered  The author walks you through the basic operations  and showcases some more advanced usages

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I suggest getting comfortable with Git before trying to use git-svn constantly  i e  keeping SVN as the centralized repo and using Git locally   However  for a simple migration with all the history  here are the few simple steps   Initialize the local repo   mkdir project cd project git svn init http   svn url   Mark how far back you want to start importing revisions   git svn fetch -r42    or just  git svn fetch  for all revs   Actually fetch everything since then   git svn rebase   You can check the result of the import with Gitk  I m not sure if this works on Windows  it works on OSX and Linux   gitk   When you ve got your SVN repo cloned locally  you may want to push it to a centralized Git repo for easier collaboration   First create your empty remote repo  maybe on GitHub     git remote add origin git github com user project-name git   Then  optionally sync your main branch so the pull operation will automatically merge the remote master with your local master  when both contain new stuff   git config branch master remote origin git config branch master merge refs heads master   After that  you may be interested in trying out my very own git remote branch tool  which helps dealing with remote branches   First explanatory post   Git remote branches   Follow-up for the most recent version   Time to git collaborating with git remote branch

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I used the svn2git script and works like a charm

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This guide on atlassian s website is one of the best I have found   https   www atlassian com git migration  This tool - https   bitbucket org atlassian svn-migration-scripts - is also really useful for generating your authors txt among other things

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TortoiseGit does this  see this blog post  http   jimmykeen net articles 03-nov-2012 how-migrate-from-svn-to-git-windows-using-tortoise-clients  Yeah  I know answering with links isn t splendid but it s a solution  eh

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There is a new solution for smooth migration from Subversion to Git  or for using both simultaneously   SubGit    I m working on this project myself  We use SubGit in our repositories - some of my teammates use Git and some Subversion and so far it works very well   To migrate from Subversion to Git with SubGit you need to run     subgit install svn repos     TRANSLATION SUCCESSFUL    After that you ll get Git repository in svn repos  git and may clone it  or just continue to use Subversion and this new Git repository together  SubGit will make sure that both are always kept in sync    In case your Subversion repository contains multiple projects  then multiple Git repositories will be created in svn repos git directory  To customize translation before running it do the following     subgit configure svn repos   edit svn repos conf subgit conf  change mapping  add authors mapping  etc    subgit install svn repos   With SubGit you may migrate to pure Git  not git-svn  and start using it while still keeping Subversion as long as you need it  for your already configured build tools  for instance    Hope this helps

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I suggest getting comfortable with Git before trying to use git-svn constantly  i e  keeping SVN as the centralized repo and using Git locally   However  for a simple migration with all the history  here are the few simple steps   Initialize the local repo   mkdir project cd project git svn init http   svn url   Mark how far back you want to start importing revisions   git svn fetch -r42    or just  git svn fetch  for all revs   Actually fetch everything since then   git svn rebase   You can check the result of the import with Gitk  I m not sure if this works on Windows  it works on OSX and Linux   gitk   When you ve got your SVN repo cloned locally  you may want to push it to a centralized Git repo for easier collaboration   First create your empty remote repo  maybe on GitHub     git remote add origin git github com user project-name git   Then  optionally sync your main branch so the pull operation will automatically merge the remote master with your local master  when both contain new stuff   git config branch master remote origin git config branch master merge refs heads master   After that  you may be interested in trying out my very own git remote branch tool  which helps dealing with remote branches   First explanatory post   Git remote branches   Follow-up for the most recent version   Time to git collaborating with git remote branch

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Pro Git 8 2 explains it  http   git-scm com book en Git-and-Other-Systems-Migrating-to-Git

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As another aside  the git-stash command is a godsend when trying to git with git-svn dcommits   A typical process    set up git repo do some work on different files decide to check some of the work in  using git decide to svn-dcommit get the dreaded  cannot commit with a dirty index  error      The solution  requires git 1 5 3       git stash  git svn dcommit   git stash apply

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Cleanly Migrate Your Subversion Repository To a Git Repository  First you have to create a file that maps your Subversion commit author names to Git commiters  say   authors txt   jmaddox   Jon Maddox  lt jon gmail com gt  bigpappa   Brian Biggs  lt bigpappa gmail com gt    Then you can download the Subversion data into a Git repository   mkdir repo  amp  amp  cd repo git svn init http   subversion repo --no-metadata git config svn authorsfile   authors txt git svn fetch   If you   re on a Mac  you can get git-svn from MacPorts by installing git-core  svn   If your subversion repository is on the same machine as your desired git repository  then you can use this syntax for the init step  otherwise all the same   git svn init file    home user repoName --no-metadata

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There are different methods to achieve this goal  I ve tried some of them and found really working one with just git and svn installed on Windows OS   Prerequisites     git on windows  I ve used this one  https   git-scm com   svn with console tools installed  I ve used tortoise svn    Dump file of your SVN repository   svnadmin dump  path to repository  gt  repo name svn dump   Steps to achieve final goal  move all repository with history to a git  firstly local git  then remote    Create empty repository  using console tools or tortoiseSVN  in directory REPO NAME FOLDER cd REPO NAME PARENT FOLDER  put dumpfile dump into REPO NAME PARENT FOLDER svnadmin load REPO NAME FOLDER  lt  dumpfile dump Wait for this operation  it may be long This command is silent  so open second cmd window   svnserve -d -R --root REPO NAME FOLDER  Why not just use file             Cause next command will fail with Unable to open     to URL   thanks to the answer https   stackoverflow com a 6300968 4953065 Create new folder SOURCE GIT FOLDER cd SOURCE GIT FOLDER git svn clone svn   localhost  Wait for this operation    Finally  what do we got   Lets check our Local repository     git log   See your previous commits  If yes - okay  So now you have fully functional local git repository with your sources and old svn history  Now  if you want to move it to some server  use the following commands     git remote add origin https   fullurlpathtoyourrepo reponame git git push -u origin --all   pushes up the repo and its refs for the first time git push -u origin --tags   pushes up any tags   In my case  I ve dont need tags command cause my repo dont have tags   Good luck

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SubGit  vs Blue Screen of Death   subgit import --svn-url url   svn serv Bla Bla  directory path Local git Repo   It s all     To update from SVN  a Git repository created by the first command   subgit import  directory path Local git Repo     I used a way to migrate to Git instantly for a huge repository   Of course you need some preparation   But you may don t stop development process  at all   Here is my way   My solution looks like    Migrate SVN to a Git repository Update the Git repository just before team s switching to    Migration takes a lot of time for a big SVN repository   But updating of the completed migration just seconds   Of course I m using SubGit  mama  git-svn makes me Blue Screen of Death  Just constantly  And git-svn is boring me with Git s  filename too long  fatal error   STEPS  1  Download SubGit  2  Prepare migrate and updating commands   Let s say we do it for Windows  it s trivial to port to Linux    In a SubGit s installation bin directory  subgit-2 X X bin   create two  bat files   Content of a file command for the migration   start    subgit import --svn-url url   svn serv Bla Bla  directory path Local git Repo   The  start  command is optional here  Windows   It ll allow to see errors on start and left a shell opened after completion of the SubGit   You may add here additional parameters similar to git-svn  I m using only --default-domain myCompanyDomain com to fix the domain of the email address of SVN authors   I have the standard SVN repository s structure  trunk branches tags  and we didn t have troubles with  authors mapping   So I m doing nothing any more    If you want to migrate tags like branches or your SVN have multiple branches tags folders you may consider to use the more verbose SubGit approach   Tip 1  Use --minimal-revision YourSvnRevNumber to see fast how things boils out  some kind of a debugging   Especially useful is to see resolved author names or emails   Or to limit the migration history depth   Tip 2  Migration may be interrupted  Ctrl   C  and restored by running of the next updating command file   I don t advise doing this for big repositories  I have received  Out of memory Java Windows exception    Tip 3  Better to create a copy of your result bare repository   Content of a file command for updating   start    subgit import  directory path Local git Repo   You may run it any amount of times when you want to obtain the last team s commits to your Git repository   Warning  Don t touch your bare repository  creation of branches for example    You ll take the next fatal error      Unrecoverable error  are out of sync and cannot be synced     Translating Subversion revisions to Git commits      3  Run the first command file  It ll take a loooong time for a big repository  30 hours for my humble repository   It s all   You may update your Git repository from SVN at any time any amount of times by running the second file command  And before switching of your development team to Git   It ll take just seconds       There s one more useful task   Push your local Git repository to a remote Git repository  Is it your case  Let s proceed    Configure your remotes   Run     git remote add origin url   your repo git    Prepare to initial send of your huge local Git repository to a remote repository   By default your Git can t send big chunks  fatal  The remote end hung up unexpectedly  Let s run for it   git config --global http postBuffer 1073741824   524288000 - 500 MB 1073741824 - 1 GB  etc   Fix your local certificate troubles  If your git-server uses a broken certificate   I have disabled certificates   Also your Git server may have a request amount limitations needing to be corrected    Push all migration to the team s remote Git repository    Run with a local Git   git push origin --mirror    git push origin       for old Git versions   If you get the following  error  cannot spawn git  No such file or directory    For me the full recreation of my repository solves this error  30 hours   You can try the next commands  git push origin --all git push origin --tags   Or try to reinstall Git  useless for me   Or you may create branches from all you tags and push them  Or  or  or

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reposurgeon  For complicated cases  reposurgeon by Eric S  Raymond is the tool of choice  In addition to SVN  it supports many other version control systems via the fast-export format  and also CVS  The author reports successful conversions of ancient repositories such as Emacs and FreeBSD   The tool apparently aims at near perfect conversion  such as converting SVN s svn ignore properties to  gitignore files  even for difficult repository layouts with a long history  For many cases  other tools might be easier to use   Before delving into the documentation of the reposurgeon command line  be sure to read the excellent DVCS migration guide which goes over the conversion process step by step

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For GitLab users I ve put up a gist on how I migrated from SVN here  https   gist github com leftclickben 322b7a3042cbe97ed2af Steps to migrate from SVN to GitLab Setup  SVN is hosted at svn domain com au  SVN is accessible via http  other protocols should work   GitLab is hosted at git domain com au and   A group is created with the namespace dev-team  At least one user account is created  added to the group  and has an SSH key for the account being used for the migration  test using ssh git git domain com au   The project favourite-project is created in the dev-team namespace    The file users txt contains the relevant user details  one user per line  of the form username   First Last  lt address domain com au gt   where username is the username given in SVN logs    See first link in References section for details  in particular answer by user Casey    Versions  subversion version 1 6 17  r1128011  git version 1 9 1 GitLab version 7 2 1 ff1633f Ubuntu server 14 04  Commands bash git svn clone --stdlayout --no-metadata -A users txt  http   svn domain com au svn repository favourite-project cd favourite-project git remote add gitlab git git domain com au dev-team favourite-project git git push --set-upstream gitlab master  That s it   Reload the project page in GitLab web UI and you will see all commits and files now listed  Notes  If there are unknown users  the git svn clone command will stop  in which case  update users txt  cd favourite-project and git svn fetch will continue from where it stopped  The standard trunk-tags-branches layout for SVN repository is required  The SVN URL given to the git svn clone command stops at the level immediately above trunk   tags  and branches   The git svn clone command produces a lot of output  including some warnings at the top  I ignored the warnings

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We can use git svn clone commands as below    svn log -q  lt SVN URL gt    awk -F        r   sub            2   sub            2   print  2      2   lt   2  gt       sort -u  gt  authors txt   Above command will create authors file from SVN commits    svn log --stop-on-copy  lt SVN URL gt    Above command will give you first revision number when your SVN project got created    git svn clone -r lt SVN REV NO gt  HEAD --no-minimize-url --stdlayout --no-metadata --authors-file authors txt  lt SVN URL gt    Above command will create the Git repository in local   Problem is that it won t convert branches and tags to push  You will have to do them manually  For example below for branches     git remote add origin https   github com pankaj0323 JDProjects git   git branch -a   master   remotes origin MyDevBranch   remotes origin tags MyDevBranch-1 0   remotes origin trunk    git checkout -b MyDevBranch origin MyDevBranch Branch MyDevBranch set up to track remote branch MyDevBranch from origin  Switched to a new branch  MyDevBranch    git branch -a   MyDevBranch   master   remotes origin MyDevBranch   remotes origin tags MyDevBranch-1 0   remotes origin trunk     For tags    git checkout origin tags MyDevBranch-1 0 Note  checking out  origin tags MyDevBranch-1 0   You are in  detached HEAD  state  You can look around  make experimental changes and commit them  and you can discard any commits you make in this state without impacting any branches by performing another checkout   If you want to create a new branch to retain commits you create  you may do so  now or later  by using -b with the checkout command again  Example     git checkout -b new branch name  HEAD is now at 3041d81    Creating a tag   git branch -a    detached from origin tags MyDevBranch-1 0    MyDevBranch   master   remotes origin MyDevBranch   remotes origin tags MyDevBranch-1 0   remotes origin trunk   git tag -a MyDevBranch-1 0 -m  creating tag   git tag MyDevBranch-1 0     Now push master  branches and tags to remote git repository     git push origin master MyDevBranch MyDevBranch-1 0 Counting objects  14  done  Delta compression using up to 8 threads  Compressing objects  100   11 11   done  Writing objects  100   14 14   2 28 KiB   0 bytes s  done  Total 14  delta 3   reused 0  delta 0  To https   github com pankaj0323 JDProjects git     new branch       master - gt  master     new branch       MyDevBranch - gt  MyDevBranch     new tag          MyDevBranch-1 0 - gt  MyDevBranch-1 0     svn2git utility  svn2git utility removes manual efforts with branches and tags   Install it using command sudo gem install svn2git  After that run below command      svn2git  lt SVN URL gt  --authors authors txt --revision  lt SVN REV NO gt    Now you can list the branches  tags and push them easily     git remote add origin https   github com pankaj0323 JDProjects git   git branch -a   MyDevBranch   master   remotes svn MyDevBranch   remotes svn trunk   git tag   MyDevBranch-1 0   git push origin master MyDevBranch MyDevBranch-1 0   Imagine you have 20 branches and tags  obviously svn2git will save you a lot of time and that s why I like it better than native commands  It s a nice wrapper around native git svn clone command    For a complete example  refer my blog entry

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Here is a simple shell script with no dependencies that will convert one or more SVN repositories to git and push them to GitHub   https   gist github com NathanSweet 7327535  In about 30 lines of script it  clones using git SVN  creates a  gitignore file from SVN  ignore properties  pushes into a bare git repository  renames SVN trunk to master  converts SVN tags to git tags  and pushes it to GitHub while preserving the tags   I went thru a lot of pain to move a dozen SVN repositories from Google Code to GitHub  It didn t help that I used Windows  Ruby was all kinds of broken on my old Debian box and getting it working on Windows was a joke  Other solutions failed to work with Cygwin paths  Even once I got something working  I couldn t figure out how to get the tags to show up on GitHub  the secret is --follow-tags    In the end I cobbled together two short and simple scripts  linked above  and it works great  The solution does not need to be any more complicated than that

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First  credit to the answer from  cmcginty  It was a great starting point for me  and much of what I ll post here borrowed heavily from it  However  the repos that I was moving have years of history which led to a few issues following that answer to the letter  hundreds of branches and tags that would need to be manually moved for one  read more later   So after hours of searching and trial and error I was able to put together a script which allowed me to easily move several projects from SVN to GIT  and I ve decided to share my findings here in case anyone else is in my shoes   lt tl dr gt  Let s get started  First  create an  Authors  file which will translate basic svn users to more complex git users  The easiest way to do this is using a command to extract all users from the svn repo you are going to move  svn log -q   awk -F        r   sub  quot    quot    quot  quot    2   sub  quot    quot    quot  quot    2   print  2 quot     quot  2 quot   lt  quot  2 quot  gt  quot      sort -u  gt  authors-transform txt  This will produce a file called authors-transform txt with a line for each user that has made a change in the svn repo it was ran from  someuser   someuser  lt someuser gt   Update to include full name and email for git someuser   Some User  lt someuser somewhere com gt   Now start the clone using your authors file git svn clone --stdlayout --no-metadata -r854 HEAD --authors-file authors-transform txt https   somesvnserver somerepo  temp   --stdlayout indicates that the svn repo follows the standard  trunk  branches  tags layout --no-metadata tells git not to stamp metadata relating to the svn commits on each git commit  If this is not a one-way conversion remove this tag -r854 HEAD only fetches history from revision 854 up  This is where I hit my first snag  the repo I was converting had a  corrupted  commit at revision 853 so it would not clone  Using this parameter allows you to only clone part of the history  temp is the name of the directory that will be created to initialize the new git repo  This step can take awhile  particularly on a large or old repo  roughly 18 hours for one of ours   You can also use that -r switch to only take a small history to see the clone  and fetch the rest later  Move to the new directory cd temp  Fetch any missing history if you only pulled partial in clone git svn fetch  Tags are created as branches during cloning  If you only have a few you can convert them one at a time  git 1 0 0 origin tags 1 0 0  However  this is tedious if you have hundreds of tags  so the following script worked for me  for brname in  git branch -r   grep tags   awk   gsub              quot  quot   1   print  1     do echo  brname  tname   brname 5   echo  tname  git tag  tname origin tags  tname  done  You also need to checkout all branches you want to keep git checkout -b branchname origin branches branchname  And if you have a lot of branches as well  this script may help for brname in  git branch -r   grep -v master   grep -v HEAD   grep -v trunk   grep -v tags   awk   gsub              quot  quot   1   print  1     do echo  brname  git checkout -b  brname origin  brname  done  This will ignore the trunk branch  as it will already be checked out as master and save a step later deleting the duplicate branch  as well as ignoring the  tags that we already converted  Now is a good time to take a look at the new repo and make sure you have a local branch or tag for anything you want to keep as remote branches will be dropped in a moment  Ok  now lets clone everything we ve checked out to a clean repo  named temp2 here  cd    git clone temp temp2 cd temp2  Now we ll need to checkout all of the branches one more time before pushing them to their final remote  so follow your favorite method from above  If you re following gitflow you can rename your working branch to develop  git checkout -b WORKING git branch -m develop git push origin --delete WORKING git push origin -u develop  Now  if everything looks good  you re ready to push to your git repository git remote set-url origin https   somebitbucketserver somerepo git git push -u origin --all git push origin --tags  I did run into one final issue which was that Control Freak initially blocked me from pushing tags that I didn t create  so if your team uses Control Freak you may need to disable or adjust that setting for your initial push

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GitHub now has a feature to import from an SVN repository  I never tried it  though

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For this  I have used svn2git library with the following procedure      sudo apt-get install git-core git-svn ruby   sudo gem install svn2git   svn log --quiet   grep -E  r 0-9               cut -d    -f2   sed  s    g    sort   uniq   authors txt  this command is for mapping the authors    Above step should be performed in the folder that you are going to convert from svn to git      Add one mapping per line in authors txt like this   anand   Anand Tripathi  lt email id gt  trip   Tripathi Anand  lt email id gt    Create a folder for a new git repository and execute the command below having the path of authors txt  svn2git  lt svn repo path gt  --nobranches --notags --notrunk --no-minimize-url --username  lt user name gt  --verbose  --authors  lt author txt path gt   If no trunk and no tag and branch is present then have to execute the above command else if root is trunk then mention rootistrunk or trunk is present then --trunk  lt trunk name gt       git remote add origin    git push --all origin     git push --tags origin

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A somewhat extended answer using just git  SVN  and bash  It includes steps for SVN repositories that do not use the conventional layout with a trunk branches tags directory layout  SVN does absolutely nothing to enforce this kind of layout    First use this bash script to scan your SVN repo for the different people who contributed and to generate a template for a mapping file      usr bin env bash authors   svn log -q   grep -e   r    awk  BEGIN   FS             print  2      sort   uniq  for author in   authors   do   echo    author    NAME  lt USER DOMAIN gt    done   Use this to create an authors file where you map svn usernames to usernames and email as set by your developers using git config properties user name and user email  note that for a service like GitHub only having a matching email is enough    Then have git svn clone the svn repository to a git repository  telling it about the mapping   git svn clone --authors-file authors --stdlayout svn   example org Folder projectroot  This can take incredibly long  since git svn will individually check out every revision for every tag or branch that exists   note that tags in SVN are just really branches  so they end up as such in Git   You can speed this up by removing old tags and branches in SVN you don t need    Running this on a server in the same network or on the same server can also really speed this up  Also  if for some reason this process gets interrupted  you can resume it using  git svn rebase --continue  In a lot of cases you re done here  But if your SVN repo has an unconventional layout where you simply have a directory in SVN you want to put in a git branch you can do some extra steps   The simplest is to just make a new SVN repo on your server that does follow convention and use svn copy to put your directory in trunk or a branch  This might be the only way if your directory is all the way at the root of the repo  when I last tried this git svn simply refused to do a checkout   You can also do this using git  For git svn clone simply use the directory you want to to put in a git branch   After run  git branch --set-upstream master git-svn git svn rebase   Note that this required Git 1 7 or higher

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See the official git-svn manpage   In particular  look under  Basic Examples       Tracking and contributing to an entire Subversion-managed project  complete       with a trunk  tags and branches       Clone a repo  like git clone       git svn clone http   svn foo org project -T trunk -b branches -t tags

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A somewhat extended answer using just git  SVN  and bash  It includes steps for SVN repositories that do not use the conventional layout with a trunk branches tags directory layout  SVN does absolutely nothing to enforce this kind of layout    First use this bash script to scan your SVN repo for the different people who contributed and to generate a template for a mapping file      usr bin env bash authors   svn log -q   grep -e   r    awk  BEGIN   FS             print  2      sort   uniq  for author in   authors   do   echo    author    NAME  lt USER DOMAIN gt    done   Use this to create an authors file where you map svn usernames to usernames and email as set by your developers using git config properties user name and user email  note that for a service like GitHub only having a matching email is enough    Then have git svn clone the svn repository to a git repository  telling it about the mapping   git svn clone --authors-file authors --stdlayout svn   example org Folder projectroot  This can take incredibly long  since git svn will individually check out every revision for every tag or branch that exists   note that tags in SVN are just really branches  so they end up as such in Git   You can speed this up by removing old tags and branches in SVN you don t need    Running this on a server in the same network or on the same server can also really speed this up  Also  if for some reason this process gets interrupted  you can resume it using  git svn rebase --continue  In a lot of cases you re done here  But if your SVN repo has an unconventional layout where you simply have a directory in SVN you want to put in a git branch you can do some extra steps   The simplest is to just make a new SVN repo on your server that does follow convention and use svn copy to put your directory in trunk or a branch  This might be the only way if your directory is all the way at the root of the repo  when I last tried this git svn simply refused to do a checkout   You can also do this using git  For git svn clone simply use the directory you want to to put in a git branch   After run  git branch --set-upstream master git-svn git svn rebase   Note that this required Git 1 7 or higher

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Create a users file  i e  users txt  for mapping SVN users to Git   user1   First Last Name  lt email address com gt  user2   First Last Name  lt email address com gt        You can use this one-liner to build a template from your existing SVN repository   svn log -q   awk -F        r   sub            2   sub            2   print  2      2   lt   2  gt       sort -u  gt  users txt   SVN will stop if it finds a missing SVN user not in the file  But after that you can update the file and pick-up where you left off   Now pull the SVN data from the repository   git svn clone --stdlayout --no-metadata --authors-file users txt svn   hostname path dest dir-tmp   This command will create a new Git repository in dest dir-tmp and start pulling the SVN repository  Note that the  --stdlayout  flag implies you have the common  trunk   branches   tags   SVN layout  If your layout differs  become familiar with --tags  --branches  --trunk options  in general git svn help    All common protocols are allowed  svn     http     https     The URL should target the base repository  something like http   svn mycompany com myrepo repository  The URL string must not include  trunk   tag or  branches   Note that after executing this command it very often looks like the operation is  hanging freezed   and it s quite normal that it can be stuck for a long time after initializing the new repository  Eventually you will then see log messages which indicates that it s migrating   Also note that if you omit the --no-metadata flag  Git will append information about the corresponding SVN revision to the commit message  i e  git-svn-id  svn   svn mycompany com myrepo  lt branchname trunk gt   lt RevisionNumber gt   lt Repository UUID gt    If a user name is not found  update your users txt file then   cd dest dir-tmp git svn fetch   You might have to repeat that last command several times  if you have a large project  until all of the Subversion commits have been fetched   git svn fetch   When completed  Git will checkout the SVN trunk into a new branch  Any other branches are setup as remotes  You can view the other SVN branches with   git branch -r   If you want to keep other remote branches in your repository  you want to create a local branch for each one manually    Skip trunk master    If you don t do this  the branches won t get cloned in the final step   git checkout -b local branch remote branch   It s OK if local branch and remote branch are the same name   Tags are imported as branches  You have to create a local branch  make a tag and delete the branch to have them as tags in Git  To do it with tag  v1    git checkout -b tag v1 remotes tags v1 git checkout master git tag v1 tag v1 git branch -D tag v1   Clone your GIT-SVN repository into a clean Git repository   git clone dest dir-tmp dest dir rm -rf dest dir-tmp cd dest dir   The local branches that you created earlier from remote branches will only have been copied as remote branches into the new cloned repository   Skip trunk master   For each branch you want to keep   git checkout -b local branch origin remote branch   Finally  remove the remote from your clean Git repository that points to the now deleted temporary repository   git remote rm origin

[svn] How do I migrate an SVN repository with history to a new Git repository?

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