How to preview git-pull without doing fetch

Question

Is it even possible   Basically  there s a remote repository from which I pull using just   git pull   Now  I d like to preview what this pull would change  a diff  without touching anything on my side  The reason is that thing I m pulling might not be  good  and I want someone else to fix it before making my repository  dirty

User · Accepted Answer

After doing a git fetch  do a git log HEAD  origin master to show the log entries between your last common commit and the origin s master branch  To show the diffs  use either git log -p HEAD  origin master to show each patch  or git diff HEAD   origin master  three dots not two  to show a single diff   There normally isn t any need to undo a fetch  because doing a fetch only updates the remote branches and none of your branches  If you re not prepared to do a pull and merge in all the remote commits  you can use git cherry-pick to accept only the specific remote commits you want  Later  when you re ready to get everything  a git pull will merge in the rest of the commits   Update  I m not entirely sure why you want to avoid the use of git fetch  All git fetch does is update your local copy of the remote branches  This local copy doesn t have anything to do with any of your branches  and it doesn t have anything to do with uncommitted local changes  I have heard of people who run git fetch in a cron job because it s so safe   I wouldn t normally recommend doing that  though

User · Answer

I created a custom git alias to do that for me   alias changes  git log --name-status HEAD     with that you can do this    git fetch  git changes origin   This will get you a nice and easy way to preview changes before doing a merge

User · Answer

I created a custom git alias to do that for me   alias changes  git log --name-status HEAD     with that you can do this    git fetch  git changes origin   This will get you a nice and easy way to preview changes before doing a merge

User · Answer

I may be late to the party  but this is something which bugged me for too long   In my experience  I would rather want to see which changes are pending than update my working copy and deal with those changes   This goes in the    gitconfig file    alias          diffpull  git fetch  amp  amp  git diff HEAD    u    It fetches the current branch  then does a diff between the working copy and this fetched branch  So you should only see the changes that would come with git pull

User · Answer

I think git fetch is what your looking for    It will pull the changes and objects without committing them to your local repo s index    They can be merged later with git merge    Man Page  Edit  Further Explination  Straight from the Git- SVN Crash Course link     Now  how do you get any new changes from a remote repository  You fetch them    git fetch http   host xz path to repo git         At this point they are in your repository and you can examine them using   git log origin        You can also diff the changes  You can also use git log HEAD  origin to see just the changes you don t have in your branch   Then if would like to merge them - just do   git merge origin       Note that if you don t specify a branch to fetch  it will conveniently default to the tracking remote    Reading the man page is honestly going to give you the best understanding of options and how to use it    I m just trying to do this by examples and memory  I don t currently have a box to test out on  You should look at   git log -p   log with diff   A fetch can be undone with git reset --hard  link    however all uncommitted changes in your tree will be lost as well as the changes you ve fetched

User · Answer

I use these two commands and I can see the files to change    First executing git fetch  it gives output like this  part of output        72f8433  c8af041  develop -  origin develop       This operation gives us two commit IDs  first is the old one  and second will be the new    Then compare these two commits using git diff   git diff 72f8433  c8af041   grep  diff --git    This command will list the files that will be updated   diff --git a app controller xxxx php b app controller xxxx php diff --git a app view yyyy php b app view yyyy php   For example app controller xxxx php and app view yyyy php will be updated   Comparing two commits using git diff prints all updated files with changed lines  but with grep it searches and gets only the lines contains diff --git from output

User · Answer

I think git fetch is what your looking for    It will pull the changes and objects without committing them to your local repo s index    They can be merged later with git merge    Man Page  Edit  Further Explination  Straight from the Git- SVN Crash Course link     Now  how do you get any new changes from a remote repository  You fetch them    git fetch http   host xz path to repo git         At this point they are in your repository and you can examine them using   git log origin        You can also diff the changes  You can also use git log HEAD  origin to see just the changes you don t have in your branch   Then if would like to merge them - just do   git merge origin       Note that if you don t specify a branch to fetch  it will conveniently default to the tracking remote    Reading the man page is honestly going to give you the best understanding of options and how to use it    I m just trying to do this by examples and memory  I don t currently have a box to test out on  You should look at   git log -p   log with diff   A fetch can be undone with git reset --hard  link    however all uncommitted changes in your tree will be lost as well as the changes you ve fetched

User · Answer

What about cloning the repo elsewhere  and doing git log on both the real checkout and the fresh clone to see if you got the same thing

User · Answer

I use these two commands and I can see the files to change    First executing git fetch  it gives output like this  part of output        72f8433  c8af041  develop -  origin develop       This operation gives us two commit IDs  first is the old one  and second will be the new    Then compare these two commits using git diff   git diff 72f8433  c8af041   grep  diff --git    This command will list the files that will be updated   diff --git a app controller xxxx php b app controller xxxx php diff --git a app view yyyy php b app view yyyy php   For example app controller xxxx php and app view yyyy php will be updated   Comparing two commits using git diff prints all updated files with changed lines  but with grep it searches and gets only the lines contains diff --git from output

User · Answer

If you don t want git-fetch to update your local  git  just copy your local repo to a temp dir and do a pull there   Here is a shor-hand     alias gtp  tar -c      cd  tmp  amp  amp  mkdir tp  amp  amp  cd tp  amp  amp  tar -x  amp  amp  git pull  rm -rf  tmp tp     Ex      git status   On branch master nothing to commit  working directory clean     gtp remote  Finding sources  100   25 25  remote  Total 25  delta 10   reused 25  delta 10  Unpacking objects  100   25 25   done  From ssh   my git domain reapO    32d61dc  05287d6  master     - gt  origin master Updating 32d61dc  05287d6 Fast-forward  subdir some file            2  -      somepath by tes         3   -      somepath data          11              3 files changed  14 insertions     2 deletions -     git status   On branch master nothing to commit  working directory clean     git fetch remote  Finding sources  100   25 25  remote  Total 25  delta 10   reused 25  delta 10  Unpacking objects  100   25 25   done  From ssh   my git domain reapO    32d61dc  05287d6  master     - gt  origin master    git status   On branch master   Your branch is behind  origin master  by 3 commits  and can be fast-forwarded    nothing to commit  working directory clean

User · Answer

You can fetch from a remote repo  see the differences and then pull or merge   This is an example for a remote repo called origin and a branch called master tracking the remote branch origin master   git checkout master                                                   git fetch                                         git diff origin master git pull --rebase origin master

User · Answer

I think git fetch is what your looking for    It will pull the changes and objects without committing them to your local repo s index    They can be merged later with git merge    Man Page  Edit  Further Explination  Straight from the Git- SVN Crash Course link     Now  how do you get any new changes from a remote repository  You fetch them    git fetch http   host xz path to repo git         At this point they are in your repository and you can examine them using   git log origin        You can also diff the changes  You can also use git log HEAD  origin to see just the changes you don t have in your branch   Then if would like to merge them - just do   git merge origin       Note that if you don t specify a branch to fetch  it will conveniently default to the tracking remote    Reading the man page is honestly going to give you the best understanding of options and how to use it    I m just trying to do this by examples and memory  I don t currently have a box to test out on  You should look at   git log -p   log with diff   A fetch can be undone with git reset --hard  link    however all uncommitted changes in your tree will be lost as well as the changes you ve fetched

User · Answer

I may be late to the party  but this is something which bugged me for too long   In my experience  I would rather want to see which changes are pending than update my working copy and deal with those changes   This goes in the    gitconfig file    alias          diffpull  git fetch  amp  amp  git diff HEAD    u    It fetches the current branch  then does a diff between the working copy and this fetched branch  So you should only see the changes that would come with git pull

User · Answer

I think git fetch is what your looking for    It will pull the changes and objects without committing them to your local repo s index    They can be merged later with git merge    Man Page  Edit  Further Explination  Straight from the Git- SVN Crash Course link     Now  how do you get any new changes from a remote repository  You fetch them    git fetch http   host xz path to repo git         At this point they are in your repository and you can examine them using   git log origin        You can also diff the changes  You can also use git log HEAD  origin to see just the changes you don t have in your branch   Then if would like to merge them - just do   git merge origin       Note that if you don t specify a branch to fetch  it will conveniently default to the tracking remote    Reading the man page is honestly going to give you the best understanding of options and how to use it    I m just trying to do this by examples and memory  I don t currently have a box to test out on  You should look at   git log -p   log with diff   A fetch can be undone with git reset --hard  link    however all uncommitted changes in your tree will be lost as well as the changes you ve fetched

User · Answer

If you don t want git-fetch to update your local  git  just copy your local repo to a temp dir and do a pull there   Here is a shor-hand     alias gtp  tar -c      cd  tmp  amp  amp  mkdir tp  amp  amp  cd tp  amp  amp  tar -x  amp  amp  git pull  rm -rf  tmp tp     Ex      git status   On branch master nothing to commit  working directory clean     gtp remote  Finding sources  100   25 25  remote  Total 25  delta 10   reused 25  delta 10  Unpacking objects  100   25 25   done  From ssh   my git domain reapO    32d61dc  05287d6  master     - gt  origin master Updating 32d61dc  05287d6 Fast-forward  subdir some file            2  -      somepath by tes         3   -      somepath data          11              3 files changed  14 insertions     2 deletions -     git status   On branch master nothing to commit  working directory clean     git fetch remote  Finding sources  100   25 25  remote  Total 25  delta 10   reused 25  delta 10  Unpacking objects  100   25 25   done  From ssh   my git domain reapO    32d61dc  05287d6  master     - gt  origin master    git status   On branch master   Your branch is behind  origin master  by 3 commits  and can be fast-forwarded    nothing to commit  working directory clean

User · Answer

You can fetch from a remote repo  see the differences and then pull or merge   This is an example for a remote repo called origin and a branch called master tracking the remote branch origin master   git checkout master                                                   git fetch                                         git diff origin master git pull --rebase origin master

User · Answer

What about cloning the repo elsewhere  and doing git log on both the real checkout and the fresh clone to see if you got the same thing

[git] How to preview git-pull without doing fetch?

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