What is git tag How to create tags How to checkout git remote tag s

Question

when I checkout remote git tag use command like this   git checkout -b local branch name origin remote tag name   I got error like this   error  pathspec  origin remote tag name  did not match any file s  known to git    I can find remote tag name when I use git tag command

User · Answer

To get the specific tag code try to create a new branch add get the tag code in it  I have done it by command    git checkout -b newBranchName tagName

User · Answer

This answer took a while to write  and codeWizard s answer is correct in aim and essence  but not entirely complete  so I ll post this anyway      There is no such thing as a  remote Git tag    There are only  tags    I point all this out not to be pedantic 1 but because there is a great deal of confusion about this with casual Git users  and the Git documentation is not very helpful2 to beginners    It s not clear if the confusion comes because of poor documentation  or the poor documentation comes because this is inherently somewhat confusing  or what    There are  remote branches   more properly called  remote-tracking branches   but it s worth noting that these are actually local entities   There are no remote tags  though  unless you  re invent them    There are only local tags  so you need to get the tag locally in order to use it   The general form for names for specific commits   which Git calls references   is any string starting with refs    A string that starts with refs heads  names a branch  a string starting with refs remotes  names a remote-tracking branch  and a string starting with refs tags  names a tag   The name refs stash is the stash reference  as used by git stash  note the lack of a trailing slash    There are some unusual special-case names that do not begin with refs   HEAD  ORIG HEAD  MERGE HEAD  and CHERRY PICK HEAD in particular are all also names that may refer to specific commits  though HEAD normally contains the name of a branch  i e   contains ref  refs heads branch    But in general  references start with refs    One thing Git does to make this confusing is that it allows you to omit the refs   and often the word after refs    For instance  you can omit refs heads  or refs tags  when referring to a local branch or tag   and in fact you must omit refs heads  when checking out a local branch   You can do this whenever the result is unambiguous  or   as we just noted   when you must do it  for git checkout branch    It s true that references exist not only in your own repository  but also in remote repositories   However  Git gives you access to a remote repository s references only at very specific times  namely  during fetch and push operations   You can also use git ls-remote or git remote show to see them  but fetch and push are the more interesting points of contact   Refspecs  During fetch and push  Git uses strings it calls refspecs to transfer references between the local and remote repository   Thus  it is at these times  and via refspecs  that two Git repositories can get into sync with each other   Once your names are in sync  you can use the same name that someone with the remote uses   There is some special magic here on fetch  though  and it affects both branch names and tag names   You should think of git fetch as directing your Git to call up  or perhaps text-message  another Git   the  remote    and have a conversation with it   Early in this conversation  the remote lists all of its references  everything in refs heads  and everything in refs tags   along with any other references it has   Your Git scans through these and  based on the usual fetch refspec  renames their branches   Let s take a look at the normal refspec for the remote named origin     git config --get-all remote origin fetch  refs heads   refs remotes origin        This refspec instructs your Git to take every name matching refs heads     i e   every branch on the remote   and change its name to refs remotes origin    i e   keep the matched part the same  changing the branch name  refs heads   to a remote-tracking branch name  refs remotes   specifically  refs remotes origin     It is through this refspec that origin s branches become your remote-tracking branches for remote origin   Branch name becomes remote-tracking branch name  with the name of the remote  in this case origin  included   The plus sign   at the front of the refspec sets the  force  flag  i e   your remote-tracking branch will be updated to match the remote s branch name  regardless of what it takes to make it match    Without the    branch updates are limited to  fast forward  changes  and tag updates are simply ignored since Git version 1 8 2 or so   before then the same fast-forward rules applied    Tags  But what about tags   There s no refspec for them   at least  not by default   You can set one  in which case the form of the refspec is up to you  or you can run git fetch --tags   Using --tags has the effect of adding refs tags   refs tags   to the refspec  i e   it brings over all tags  but does not update your tag if you already have a tag with that name  regardless of what the remote s tag says Edit  Jan 2017  as of Git 2 10  testing shows that --tags forcibly updates your tags from the remote s tags  as if the refspec read  refs tags   refs tags    this may be a difference in behavior from an earlier version of Git    Note that there is no renaming here  if remote origin has tag xyzzy  and you don t  and you git fetch origin  refs tags   refs tags     you get refs tags xyzzy added to your repository  pointing to the same commit as on the remote    If you use  refs tags   refs tags   then your tag xyzzy  if you have one  is replaced by the one from origin   That is  the   force flag on a refspec means  replace my reference s value with the one my Git gets from their Git    Automagic tags during fetch  For historical reasons 3 if you use neither the --tags option nor the --no-tags option  git fetch takes special action   Remember that we said above that the remote starts by displaying to your local Git all of its references  whether your local Git wants to see them or not 4  Your Git takes note of all the tags it sees at this point   Then  as it begins downloading any commit objects it needs to handle whatever it s fetching  if one of those commits has the same ID as any of those tags  git will add that tag   or those tags  if multiple tags have that ID   to your repository   Edit  Jan 2017  testing shows that the behavior in Git 2 10 is now  If their Git provides a tag named T  and you do not have a tag named T  and the commit ID associated with T is an ancestor of one of their branches that your git fetch is examining  your Git adds T to your tags with or without --tags   Adding --tags causes your Git to obtain all their tags  and also force update   Bottom line  You may have to use git fetch --tags to get their tags   If their tag names conflict with your existing tag names  you may  depending on Git version  even have to delete  or rename  some of your tags  and then run git fetch --tags  to get their tags   Since tags   unlike remote branches   do not have automatic renaming  your tag names must match their tag names  which is why you can have issues with conflicts   In most normal cases  though  a simple git fetch will do the job  bringing over their commits and their matching tags  and since they   whoever they are   will tag commits at the time they publish those commits  you will keep up with their tags   If you don t make your own tags  nor mix their repository and other repositories  via multiple remotes   you won t have any tag name collisions either  so you won t have to fuss with deleting or renaming tags in order to obtain their tags   When you need qualified names  I mentioned above that you can omit refs  almost always  and refs heads  and refs tags  and so on most of the time   But when can t you   The complete  or near-complete anyway  answer is in the gitrevisions documentation   Git will resolve a name to a commit ID using the six-step sequence given in the link   Curiously  tags override branches  if there is a tag xyzzy and a branch xyzzy  and they point to different commits  then   git rev-parse xyzzy   will give you the ID to which the tag points   However   and this is what s missing from gitrevisions   git checkout prefers branch names  so git checkout xyzzy will put you on the branch  disregarding the tag   In case of ambiguity  you can almost always spell out the ref name using its full name  refs heads xyzzy or refs tags xyzzy    Note that this does work with git checkout  but in a perhaps unexpected manner  git checkout refs heads xyzzy causes a detached-HEAD checkout rather than a branch checkout   This is why you just have to note that git checkout will use the short name as a branch name first  that s how you check out the branch xyzzy even if the tag xyzzy exists   If you want to check out the tag  you can use refs tags xyzzy    Because  as gitrevisions notes  Git will try refs name  you can also simply write tags xyzzy to identify the commit tagged xyzzy    If someone has managed to write a valid reference named xyzzy into  GIT DIR  however  this will resolve as  GIT DIR xyzzy   But normally only the various  HEAD names should be in  GIT DIR      1Okay  okay   not just to be pedantic    -   2Some would say  very not-helpful   and I would tend to agree  actually   3Basically  git fetch  and the whole concept of remotes and refspecs  was a bit of a late addition to Git  happening around the time of Git 1 5   Before then there were just some ad-hoc special cases  and tag-fetching was one of them  so it got grandfathered in via special code   4If it helps  think of the remote Git as a flasher  in the slang meaning

User · Answer

In order to checkout a git tag   you would execute the following command  git checkout tags tag-name -b branch-name   eg as mentioned below    git checkout tags v1 0 -b v1 0-branch   To fetch the all tags use the command   git fetch --all --tags

User · Answer

This is bit out of context but in case you are here because you want to tag a specific commit like i do Here s a command to do that  - Example  git tag -a v1 0 7cceb02 -m  quot Your message here quot   Where 7cceb02 is the beginning part of the commit id  You can then push the tag using git push origin v1 0  You can do git log to show all the commit id s in your current branch

User · Answer

Let s start by explaining what a tag in git is   A tag is used to label and mark a specific commit in the history  It is usually used to mark release points  eg  v1 0  etc      Although a tag may appear similar to a branch  a tag  however  does not change  It points directly to a specific commit in the history and will not change unless explicitly updated     You will not be able to checkout the tags if it s not locally in your repository so first  you have to fetch the tags to your local repository  First  make sure that the tag exists locally by doing   --all will fetch all the remotes    --tags will fetch all tags as well   git fetch --all --tags --prune  Then check out the tag by running   git checkout tags  lt tag name gt  -b  lt branch name gt   Instead of origin use the tags  prefix   In this sample you have 2 tags version 1 0  amp  version 1 1 you can check them out with any of the following    git checkout A        git checkout version 1 0        git checkout tags version 1 0       All of the above will do the same since the tag is only a pointer to a given commit   origin  https   backlog com git-tutorial img post stepup capture stepup4 1 1 png  How to see the list of all tags    list all tags   git tag    list all tags with given pattern ex  v-   git tag --list  v-     How to create tags  There are 2 ways to create a tag    lightweight tag    git tag     annotated tag   git tag -a  The difference between the 2 is that when creating an annotated tag you can add metadata as you have in a git commit  name  e-mail  date  comment  amp  signature  How to delete tags  Delete a local tag   git tag -d  lt tag name gt  Deleted tag  lt tag name gt   was 000000   Note  If you try to delete a non existig Git tag  there will be see the following error    git tag -d  lt tag name gt  error  tag   lt tag name gt   not found   Delete remote tags   Delete a tag from the server with push tags   git push --delete origin  lt tag name gt   How to clone a specific tag  In order to grab the content of a given tag  you can use the checkout command  As explained above tags are like any other commits so we can use checkout and instead of using the SHA-1 simply replacing it with the tag name Option 1    Update the local git repo with the latest tags from all remotes   git fetch --all    checkout the specific tag   git checkout tags  lt tag gt  -b  lt branch gt   Option 2  Using the clone command Since git supports shallow clone by adding the --branch to the clone command we can use the tag name instead of the branch name  Git knows how to  quot translate quot  the given SHA-1 to the relevant commit   Clone a specific tag name using git clone    git clone  lt url gt  --branch  lt tag name gt    git clone --branch  --branch can also take tags and detaches the HEAD at that commit in the resulting repository    How to push tags  git push --tags To push all tags    Push all tags   git push --tags   Using the refs tags instead of just specifying the  lt tagname gt   Why   It s recommended to use refs tags since sometimes tags can have the same name as your branches and a simple git push will push the branch instead of the tag  To push annotated tags and current history chain tags use  git push --follow-tags This flag --follow-tags pushes both commits and only tags that are both   Annotated tags  so you can skip local temp build tags  Reachable tags  an ancestor  from the current branch  located on the history    From Git 2 4 you can set it using configuration   git config --global push followTags true   Cheatsheet

[git] What is git tag, How to create tags & How to checkout git remote tag(s)

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