зеркало из https://github.com/microsoft/git.git
git-p4: introduce asciidoc documentation
Add proper documentation for git-p4. Delete the old .txt documentation from contrib/fast-import. Cc: Frans Klaver <fransklaver@gmail.com> Cc: Luke Diamand <luke@diamand.org> Signed-off-by: Pete Wyckoff <pw@padd.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Pete Wyckoff
Junio C Hamano
Родитель
9e602b24fb
Коммит
6679c34c47
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@ -0,0 +1,455 @@
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git-p4(1)
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=========
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NAME
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----
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git-p4 - Import from and submit to Perforce repositories
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SYNOPSIS
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--------
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[verse]
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'git p4 clone' [<sync options>] [<clone options>] <p4 depot path>...
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'git p4 sync' [<sync options>] [<p4 depot path>...]
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'git p4 rebase'
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'git p4 submit' [<submit options>] [<master branch name>]
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DESCRIPTION
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-----------
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This command provides a way to interact with p4 repositories
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using git.
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Create a new git repository from an existing p4 repository using
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'git p4 clone', giving it one or more p4 depot paths. Incorporate
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new commits from p4 changes with 'git p4 sync'. The 'sync' command
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is also used to include new branches from other p4 depot paths.
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Submit git changes back to p4 using 'git p4 submit'. The command
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'git p4 rebase' does a sync plus rebases the current branch onto
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the updated p4 remote branch.
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EXAMPLE
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-------
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* Create an alias for 'git p4', using the full path to the 'git-p4'
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script if needed:
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+
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------------
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$ git config --global alias.p4 '!git-p4'
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------------
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* Clone a repository:
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+
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------------
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$ git p4 clone //depot/path/project
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------------
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* Do some work in the newly created git repository:
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+
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------------
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$ cd project
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$ vi foo.h
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$ git commit -a -m "edited foo.h"
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------------
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* Update the git repository with recent changes from p4, rebasing your
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work on top:
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+
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------------
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$ git p4 rebase
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------------
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* Submit your commits back to p4:
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+
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------------
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$ git p4 submit
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------------
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COMMANDS
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--------
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Clone
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~~~~~
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Generally, 'git p4 clone' is used to create a new git directory
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from an existing p4 repository:
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------------
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$ git p4 clone //depot/path/project
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------------
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This:
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1. Creates an empty git repository in a subdirectory called 'project'.
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+
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2. Imports the full contents of the head revision from the given p4
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depot path into a single commit in the git branch 'refs/remotes/p4/master'.
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+
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3. Creates a local branch, 'master' from this remote and checks it out.
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To reproduce the entire p4 history in git, use the '@all' modifier on
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the depot path:
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------------
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$ git p4 clone //depot/path/project@all
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------------
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Sync
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~~~~
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As development continues in the p4 repository, those changes can
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be included in the git repository using:
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------------
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$ git p4 sync
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------------
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This command finds new changes in p4 and imports them as git commits.
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P4 repositories can be added to an existing git repository using
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'git p4 sync' too:
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------------
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$ mkdir repo-git
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$ cd repo-git
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$ git init
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$ git p4 sync //path/in/your/perforce/depot
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------------
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This imports the specified depot into
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'refs/remotes/p4/master' in an existing git repository. The
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'--branch' option can be used to specify a different branch to
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be used for the p4 content.
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If a git repository includes branches 'refs/remotes/origin/p4', these
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will be fetched and consulted first during a 'git p4 sync'. Since
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importing directly from p4 is considerably slower than pulling changes
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from a git remote, this can be useful in a multi-developer environment.
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Rebase
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~~~~~~
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A common working pattern is to fetch the latest changes from the p4 depot
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and merge them with local uncommitted changes. Often, the p4 repository
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is the ultimate location for all code, thus a rebase workflow makes
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sense. This command does 'git p4 sync' followed by 'git rebase' to move
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local commits on top of updated p4 changes.
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------------
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$ git p4 rebase
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------------
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Submit
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~~~~~~
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Submitting changes from a git repository back to the p4 repository
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requires a separate p4 client workspace. This should be specified
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using the 'P4CLIENT' environment variable or the git configuration
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variable 'git-p4.client'. The p4 client must exist, but the client root
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will be created and populated if it does not already exist.
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To submit all changes that are in the current git branch but not in
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the 'p4/master' branch, use:
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------------
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$ git p4 submit
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------------
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To specify a branch other than the current one, use:
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------------
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$ git p4 submit topicbranch
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------------
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The upstream reference is generally 'refs/remotes/p4/master', but can
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be overridden using the '--origin=' command-line option.
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The p4 changes will be created as the user invoking 'git p4 submit'. The
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'--preserve-user' option will cause ownership to be modified
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according to the author of the git commit. This option requires admin
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privileges in p4, which can be granted using 'p4 protect'.
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OPTIONS
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-------
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General options
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~~~~~~~~~~~~~~~
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All commands except clone accept this option.
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--git-dir <dir>::
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Set the 'GIT_DIR' environment variable. See linkgit:git[1].
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Sync options
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~~~~~~~~~~~~
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These options can be used in the initial 'clone' as well as in
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subsequent 'sync' operations.
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--branch <branch>::
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Import changes into given branch. If the branch starts with
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'refs/', it will be used as is, otherwise the path 'refs/heads/'
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will be prepended. The default branch is 'master'.
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--detect-branches::
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Use the branch detection algorithm to find new paths in p4. It is
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documented below in "BRANCH DETECTION".
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--changesfile <file>::
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Import exactly the p4 change numbers listed in 'file', one per
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line. Normally, 'git p4' inspects the current p4 repository
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state and detects the changes it should import.
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--silent::
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Do not print any progress information.
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--verbose::
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Provide more progress information.
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--detect-labels::
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Query p4 for labels associated with the depot paths, and add
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them as tags in git.
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--import-local::
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By default, p4 branches are stored in 'refs/remotes/p4/',
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where they will be treated as remote-tracking branches by
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linkgit:git-branch[1] and other commands. This option instead
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puts p4 branches in 'refs/heads/p4/'.
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--max-changes <n>::
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Limit the number of imported changes to 'n'. Useful to
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limit the amount of history when using the '@all' p4 revision
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specifier.
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--keep-path::
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The mapping of file names from the p4 depot path to git, by
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default, involves removing the entire depot path. With this
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option, the full p4 depot path is retained in git. For example,
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path '//depot/main/foo/bar.c', when imported from
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'//depot/main/', becomes 'foo/bar.c'. With '--keep-path', the
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git path is instead 'depot/main/foo/bar.c'.
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--use-client-spec::
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Use a client spec to find the list of interesting files in p4.
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The client spec is discovered using 'p4 client -o' which checks
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the 'P4CLIENT' environment variable and returns a mapping of
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depot files to workspace files.
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Clone options
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~~~~~~~~~~~~~
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These options can be used in an initial 'clone', along with the 'sync'
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options described above.
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--destination <directory>::
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Where to create the git repository. If not provided, the last
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component in the p4 depot path is used to create a new
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directory.
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--bare::
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Perform a bare clone. See linkgit:git-clone[1].
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-/ <path>::
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Exclude selected depot paths when cloning.
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Submit options
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~~~~~~~~~~~~~~
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These options can be used to modify 'git p4 submit' behavior.
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--verbose::
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Provide more progress information.
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--origin <commit>::
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Upstream location from which commits are identified to submit to
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p4. By default, this is the most recent p4 commit reachable
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from 'HEAD'.
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-M[<n>]::
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Detect renames. See linkgit:git-diff[1]. Renames will be
|
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represented in p4 using explicit 'move' operations.
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--preserve-user::
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Re-author p4 changes before submitting to p4. This option
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requires p4 admin privileges.
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DEPOT PATH SYNTAX
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-----------------
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The p4 depot path argument to 'git p4 sync' and 'git p4 clone' can
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be one or more space-separated p4 depot paths, with an optional
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p4 revision specifier on the end:
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"//depot/my/project"::
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Import one commit with all files in the '#head' change under that tree.
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"//depot/my/project@all"::
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Import one commit for each change in the history of that depot path.
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"//depot/my/project@1,6"::
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Import only changes 1 through 6.
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"//depot/proj1 //depot/proj2@all"::
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Import all changes from both named depot paths.
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See 'p4 help revisions' for the full syntax of p4 revision specifiers.
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BRANCH DETECTION
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----------------
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P4 does not have the same concept of a branch as git. Instead,
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p4 organizes its content as a directory tree, where by convention
|
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different logical branches are in different locations in the tree.
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The 'p4 branch' command is used to maintain mappings between
|
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different areas in the tree, and indicate related content. 'git p4'
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can use these mappings to determine branch relationships.
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If you have a repository where all the branches of interest exist as
|
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subdirectories of a single depot path, you can use '--detect-branches'
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when cloning or syncing to have 'git p4' automatically find
|
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subdirectories in p4, and to generate these as branches in git.
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For example, if the P4 repository structure is:
|
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----
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//depot/main/...
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//depot/branch1/...
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----
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|
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And "p4 branch -o branch1" shows a View line that looks like:
|
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----
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//depot/main/... //depot/branch1/...
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----
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Then this 'git p4 clone' command:
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----
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git p4 clone --detect-branches //depot@all
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----
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produces a separate branch in 'refs/remotes/p4/' for //depot/main,
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called 'master', and one for //depot/branch1 called 'depot/branch1'.
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|
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However, it is not necessary to create branches in p4 to be able to use
|
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them like branches. Because it is difficult to infer branch
|
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relationships automatically, a git configuration setting
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'git-p4.branchList' can be used to explicitly identify branch
|
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relationships. It is a list of "source:destination" pairs, like a
|
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simple p4 branch specification, where the "source" and "destination" are
|
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the path elements in the p4 repository. The example above relied on the
|
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presence of the p4 branch. Without p4 branches, the same result will
|
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occur with:
|
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----
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git config git-p4.branchList main:branch1
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git p4 clone --detect-branches //depot@all
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----
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|
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PERFORMANCE
|
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-----------
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The fast-import mechanism used by 'git p4' creates one pack file for
|
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each invocation of 'git p4 sync'. Normally, git garbage compression
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(linkgit:git-gc[1]) automatically compresses these to fewer pack files,
|
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but explicit invocation of 'git repack -adf' may improve performance.
|
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|
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|
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CONFIGURATION VARIABLES
|
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-----------------------
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The following config settings can be used to modify 'git p4' behavior.
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They all are in the 'git-p4' section.
|
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|
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General variables
|
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~~~~~~~~~~~~~~~~~
|
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git-p4.user::
|
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User specified as an option to all p4 commands, with '-u <user>'.
|
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The environment variable 'P4USER' can be used instead.
|
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|
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git-p4.password::
|
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Password specified as an option to all p4 commands, with
|
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'-P <password>'.
|
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The environment variable 'P4PASS' can be used instead.
|
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|
||||
git-p4.port::
|
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Port specified as an option to all p4 commands, with
|
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'-p <port>'.
|
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The environment variable 'P4PORT' can be used instead.
|
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|
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git-p4.host::
|
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Host specified as an option to all p4 commands, with
|
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'-h <host>'.
|
||||
The environment variable 'P4HOST' can be used instead.
|
||||
|
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git-p4.client::
|
||||
Client specified as an option to all p4 commands, with
|
||||
'-c <client>'. This can also be used as a way to find
|
||||
the client spec for the 'useClientSpec' option.
|
||||
The environment variable 'P4CLIENT' can be used instead.
|
||||
|
||||
Clone and sync variables
|
||||
~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
git-p4.syncFromOrigin::
|
||||
Because importing commits from other git repositories is much faster
|
||||
than importing them from p4, a mechanism exists to find p4 changes
|
||||
first in git remotes. If branches exist under 'refs/remote/origin/p4',
|
||||
those will be fetched and used when syncing from p4. This
|
||||
variable can be set to 'false' to disable this behavior.
|
||||
|
||||
git-p4.branchUser::
|
||||
One phase in branch detection involves looking at p4 branches
|
||||
to find new ones to import. By default, all branches are
|
||||
inspected. This option limits the search to just those owned
|
||||
by the single user named in the variable.
|
||||
|
||||
git-p4.branchList::
|
||||
List of branches to be imported when branch detection is
|
||||
enabled. Each entry should be a pair of branch names separated
|
||||
by a colon (:). This example declares that both branchA and
|
||||
branchB were created from main:
|
||||
-------------
|
||||
git config git-p4.branchList main:branchA
|
||||
git config --add git-p4.branchList main:branchB
|
||||
-------------
|
||||
|
||||
git-p4.useClientSpec::
|
||||
Specify that the p4 client spec to be used to identify p4 depot
|
||||
paths of interest. This is equivalent to specifying the option
|
||||
'--use-client-spec'. The variable 'git-p4.client' can be used
|
||||
to specify the name of the client.
|
||||
|
||||
Submit variables
|
||||
~~~~~~~~~~~~~~~~
|
||||
git-p4.detectRenames::
|
||||
Detect renames. See linkgit:git-diff[1].
|
||||
|
||||
git-p4.detectCopies::
|
||||
Detect copies. See linkgit:git-diff[1].
|
||||
|
||||
git-p4.detectCopiesHarder::
|
||||
Detect copies harder. See linkgit:git-diff[1].
|
||||
|
||||
git-p4.preserveUser::
|
||||
On submit, re-author changes to reflect the git author,
|
||||
regardless of who invokes 'git p4 submit'.
|
||||
|
||||
git-p4.allowMissingP4Users::
|
||||
When 'preserveUser' is true, 'git p4' normally dies if it
|
||||
cannot find an author in the p4 user map. This setting
|
||||
submits the change regardless.
|
||||
|
||||
git-p4.skipSubmitEdit::
|
||||
The submit process invokes the editor before each p4 change
|
||||
is submitted. If this setting is true, though, the editing
|
||||
step is skipped.
|
||||
|
||||
git-p4.skipSubmitEditCheck::
|
||||
After editing the p4 change message, 'git p4' makes sure that
|
||||
the description really was changed by looking at the file
|
||||
modification time. This option disables that test.
|
||||
|
||||
git-p4.allowSubmit::
|
||||
By default, any branch can be used as the source for a 'git p4
|
||||
submit' operation. This configuration variable, if set, permits only
|
||||
the named branches to be used as submit sources.
|
||||
|
||||
git-p4.skipUserNameCheck::
|
||||
If the user running 'git p4 submit' does not exist in the p4
|
||||
user map, 'git p4' exits. This option can be used to force
|
||||
submission regardless.
|
||||
|
||||
|
||||
IMPLEMENTATION DETAILS
|
||||
----------------------
|
||||
* Changesets from p4 are imported using git fast-import.
|
||||
* Cloning or syncing does not require a p4 client; file contents are
|
||||
collected using 'p4 print'.
|
||||
* Submitting requires a p4 client, which is not in the same location
|
||||
as the git repository. Patches are applied, one at a time, to
|
||||
this p4 client and submitted from there.
|
||||
* Each commit imported by 'git p4' has a line at the end of the log
|
||||
message indicating the p4 depot location and change number. This
|
||||
line is used by later 'git p4 sync' operations to know which p4
|
||||
changes are new.
|
||||
|
|
@ -1,302 +0,0 @@
|
|||
git-p4 - Perforce <-> Git converter using git-fast-import
|
||||
|
||||
Usage
|
||||
=====
|
||||
|
||||
git-p4 can be used in two different ways:
|
||||
|
||||
1) To import changes from Perforce to a Git repository, using "git-p4 sync".
|
||||
|
||||
2) To submit changes from Git back to Perforce, using "git-p4 submit".
|
||||
|
||||
Importing
|
||||
=========
|
||||
|
||||
Simply start with
|
||||
|
||||
git-p4 clone //depot/path/project
|
||||
|
||||
or
|
||||
|
||||
git-p4 clone //depot/path/project myproject
|
||||
|
||||
This will:
|
||||
|
||||
1) Create an empty git repository in a subdirectory called "project" (or
|
||||
"myproject" with the second command)
|
||||
|
||||
2) Import the head revision from the given Perforce path into a git branch
|
||||
called "p4" (remotes/p4 actually)
|
||||
|
||||
3) Create a master branch based on it and check it out.
|
||||
|
||||
If you want the entire history (not just the head revision) then you can simply
|
||||
append a "@all" to the depot path:
|
||||
|
||||
git-p4 clone //depot/project/main@all myproject
|
||||
|
||||
|
||||
|
||||
If you want more control you can also use the git-p4 sync command directly:
|
||||
|
||||
mkdir repo-git
|
||||
cd repo-git
|
||||
git init
|
||||
git-p4 sync //path/in/your/perforce/depot
|
||||
|
||||
This will import the current head revision of the specified depot path into a
|
||||
"remotes/p4/master" branch of your git repository. You can use the
|
||||
--branch=mybranch option to import into a different branch.
|
||||
|
||||
If you want to import the entire history of a given depot path simply use:
|
||||
|
||||
git-p4 sync //path/in/depot@all
|
||||
|
||||
|
||||
Note:
|
||||
|
||||
To achieve optimal compression you may want to run 'git repack -a -d -f' after
|
||||
a big import. This may take a while.
|
||||
|
||||
Incremental Imports
|
||||
===================
|
||||
|
||||
After an initial import you can continue to synchronize your git repository
|
||||
with newer changes from the Perforce depot by just calling
|
||||
|
||||
git-p4 sync
|
||||
|
||||
in your git repository. By default the "remotes/p4/master" branch is updated.
|
||||
|
||||
Advanced Setup
|
||||
==============
|
||||
|
||||
Suppose you have a periodically updated git repository somewhere, containing a
|
||||
complete import of a Perforce project. This repository can be cloned and used
|
||||
with git-p4. When updating the cloned repository with the "sync" command,
|
||||
git-p4 will try to fetch changes from the original repository first. The git
|
||||
protocol used with this is usually faster than importing from Perforce
|
||||
directly.
|
||||
|
||||
This behaviour can be disabled by setting the "git-p4.syncFromOrigin" git
|
||||
configuration variable to "false".
|
||||
|
||||
Updating
|
||||
========
|
||||
|
||||
A common working pattern is to fetch the latest changes from the Perforce depot
|
||||
and merge them with local uncommitted changes. The recommended way is to use
|
||||
git's rebase mechanism to preserve linear history. git-p4 provides a convenient
|
||||
|
||||
git-p4 rebase
|
||||
|
||||
command that calls git-p4 sync followed by git rebase to rebase the current
|
||||
working branch.
|
||||
|
||||
Submitting
|
||||
==========
|
||||
|
||||
git-p4 has support for submitting changes from a git repository back to the
|
||||
Perforce depot. This requires a Perforce checkout separate from your git
|
||||
repository. To submit all changes that are in the current git branch but not in
|
||||
the "p4" branch (or "origin" if "p4" doesn't exist) simply call
|
||||
|
||||
git-p4 submit
|
||||
|
||||
in your git repository. If you want to submit changes in a specific branch that
|
||||
is not your current git branch you can also pass that as an argument:
|
||||
|
||||
git-p4 submit mytopicbranch
|
||||
|
||||
You can override the reference branch with the --origin=mysourcebranch option.
|
||||
|
||||
The Perforce changelists will be created with the user who ran git-p4. If you
|
||||
use --preserve-user then git-p4 will attempt to create Perforce changelists
|
||||
with the Perforce user corresponding to the git commit author. You need to
|
||||
have sufficient permissions within Perforce, and the git users need to have
|
||||
Perforce accounts. Permissions can be granted using 'p4 protect'.
|
||||
|
||||
If a submit fails you may have to "p4 resolve" and submit manually. You can
|
||||
continue importing the remaining changes with
|
||||
|
||||
git-p4 submit --continue
|
||||
|
||||
Example
|
||||
=======
|
||||
|
||||
# Clone a repository
|
||||
git-p4 clone //depot/path/project
|
||||
# Enter the newly cloned directory
|
||||
cd project
|
||||
# Do some work...
|
||||
vi foo.h
|
||||
# ... and commit locally to gi
|
||||
git commit foo.h
|
||||
# In the meantime somebody submitted changes to the Perforce depot. Rebase your latest
|
||||
# changes against the latest changes in Perforce:
|
||||
git-p4 rebase
|
||||
# Submit your locally committed changes back to Perforce
|
||||
git-p4 submit
|
||||
# ... and synchronize with Perforce
|
||||
git-p4 rebase
|
||||
|
||||
|
||||
Configuration parameters
|
||||
========================
|
||||
|
||||
git-p4.user ($P4USER)
|
||||
|
||||
Allows you to specify the username to use to connect to the Perforce repository.
|
||||
|
||||
git config [--global] git-p4.user public
|
||||
|
||||
git-p4.password ($P4PASS)
|
||||
|
||||
Allows you to specify the password to use to connect to the Perforce repository.
|
||||
Warning this password will be visible on the command-line invocation of the p4 binary.
|
||||
|
||||
git config [--global] git-p4.password public1234
|
||||
|
||||
git-p4.port ($P4PORT)
|
||||
|
||||
Specify the port to be used to contact the Perforce server. As this will be passed
|
||||
directly to the p4 binary, it may be in the format host:port as well.
|
||||
|
||||
git config [--global] git-p4.port codes.zimbra.com:2666
|
||||
|
||||
git-p4.host ($P4HOST)
|
||||
|
||||
Specify the host to contact for a Perforce repository.
|
||||
|
||||
git config [--global] git-p4.host perforce.example.com
|
||||
|
||||
git-p4.client ($P4CLIENT)
|
||||
|
||||
Specify the client name to use
|
||||
|
||||
git config [--global] git-p4.client public-view
|
||||
|
||||
git-p4.allowSubmit
|
||||
|
||||
git config [--global] git-p4.allowSubmit false
|
||||
|
||||
git-p4.syncFromOrigin
|
||||
|
||||
A useful setup may be that you have a periodically updated git repository
|
||||
somewhere that contains a complete import of a Perforce project. That git
|
||||
repository can be used to clone the working repository from and one would
|
||||
import from Perforce directly after cloning using git-p4. If the connection to
|
||||
the Perforce server is slow and the working repository hasn't been synced for a
|
||||
while it may be desirable to fetch changes from the origin git repository using
|
||||
the efficient git protocol. git-p4 supports this setup by calling "git fetch origin"
|
||||
by default if there is an origin branch. You can disable this using:
|
||||
|
||||
git config [--global] git-p4.syncFromOrigin false
|
||||
|
||||
git-p4.useclientspec
|
||||
|
||||
git config [--global] git-p4.useclientspec false
|
||||
|
||||
The P4CLIENT environment variable should be correctly set for p4 to be
|
||||
able to find the relevant client. This client spec will be used to
|
||||
both filter the files cloned by git and set the directory layout as
|
||||
specified in the client (this implies --keep-path style semantics).
|
||||
|
||||
git-p4.skipSubmitEdit
|
||||
|
||||
git config [--global] git-p4.skipSubmitEdit false
|
||||
|
||||
Normally, git-p4 invokes an editor after each commit is applied so
|
||||
that you can make changes to the submit message. Setting this
|
||||
variable to true will skip the editing step, submitting the change as is.
|
||||
|
||||
git-p4.skipSubmitEditCheck
|
||||
|
||||
git config [--global] git-p4.skipSubmitEditCheck false
|
||||
|
||||
After the editor is invoked, git-p4 normally makes sure you saved the
|
||||
change description, as an indication that you did indeed read it over
|
||||
and edit it. You can quit without saving to abort the submit (or skip
|
||||
this change and continue). Setting this variable to true will cause
|
||||
git-p4 not to check if you saved the change description. This variable
|
||||
only matters if git-p4.skipSubmitEdit has not been set to true.
|
||||
|
||||
git-p4.preserveUser
|
||||
|
||||
git config [--global] git-p4.preserveUser false
|
||||
|
||||
If true, attempt to preserve user names by modifying the p4 changelists. See
|
||||
the "--preserve-user" submit option.
|
||||
|
||||
git-p4.allowMissingPerforceUsers
|
||||
|
||||
git config [--global] git-p4.allowMissingP4Users false
|
||||
|
||||
If git-p4 is setting the perforce user for a commit (--preserve-user) then
|
||||
if there is no perforce user corresponding to the git author, git-p4 will
|
||||
stop. With allowMissingPerforceUsers set to true, git-p4 will use the
|
||||
current user (i.e. the behavior without --preserve-user) and carry on with
|
||||
the perforce commit.
|
||||
|
||||
git-p4.skipUserNameCheck
|
||||
|
||||
git config [--global] git-p4.skipUserNameCheck false
|
||||
|
||||
When submitting, git-p4 checks that the git commits are authored by the current
|
||||
p4 user, and warns if they are not. This disables the check.
|
||||
|
||||
git-p4.detectRenames
|
||||
|
||||
Detect renames when submitting changes to Perforce server. Will enable -M git
|
||||
argument. Can be optionally set to a number representing the threshold
|
||||
percentage value of the rename detection.
|
||||
|
||||
git config [--global] git-p4.detectRenames true
|
||||
git config [--global] git-p4.detectRenames 50
|
||||
|
||||
git-p4.detectCopies
|
||||
|
||||
Detect copies when submitting changes to Perforce server. Will enable -C git
|
||||
argument. Can be optionally set to a number representing the threshold
|
||||
percentage value of the copy detection.
|
||||
|
||||
git config [--global] git-p4.detectCopies true
|
||||
git config [--global] git-p4.detectCopies 80
|
||||
|
||||
git-p4.detectCopiesHarder
|
||||
|
||||
Detect copies even between files that did not change when submitting changes to
|
||||
Perforce server. Will enable --find-copies-harder git argument.
|
||||
|
||||
git config [--global] git-p4.detectCopies true
|
||||
|
||||
git-p4.branchUser
|
||||
|
||||
Only use branch specifications defined by the selected username.
|
||||
|
||||
git config [--global] git-p4.branchUser username
|
||||
|
||||
git-p4.branchList
|
||||
|
||||
List of branches to be imported when branch detection is enabled.
|
||||
|
||||
git config [--global] git-p4.branchList main:branchA
|
||||
git config [--global] --add git-p4.branchList main:branchB
|
||||
|
||||
Implementation Details...
|
||||
=========================
|
||||
|
||||
* Changesets from Perforce are imported using git fast-import.
|
||||
* The import does not require anything from the Perforce client view as it just uses
|
||||
"p4 print //depot/path/file#revision" to get the actual file contents.
|
||||
* Every imported changeset has a special [git-p4...] line at the
|
||||
end of the log message that gives information about the corresponding
|
||||
Perforce change number and is also used by git-p4 itself to find out
|
||||
where to continue importing when doing incremental imports.
|
||||
Basically when syncing it extracts the perforce change number of the
|
||||
latest commit in the "p4" branch and uses "p4 changes //depot/path/...@changenum,#head"
|
||||
to find out which changes need to be imported.
|
||||
* git-p4 submit uses "git rev-list" to pick the commits between the "p4" branch
|
||||
and the current branch.
|
||||
The commits themselves are applied using git diff/format-patch ... | git apply
|
||||
|
||||
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