зеркало из https://github.com/microsoft/git.git
Merge branch 'pw/p4-docs-and-tests'
* pw/p4-docs-and-tests: git-p4: document and test submit options git-p4: test and document --use-client-spec git-p4: test --keep-path git-p4: test --max-changes git-p4: document and test --import-local git-p4: honor --changesfile option and test git-p4: document and test clone --branch git-p4: test cloning with two dirs, clarify doc git-p4: clone does not use --git-dir git-p4: introduce asciidoc documentation rename git-p4 tests
This commit is contained in:
Коммит
4570aeb0d8
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@ -0,0 +1,479 @@
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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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|
||||
|
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SYNOPSIS
|
||||
--------
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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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||||
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|
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DESCRIPTION
|
||||
-----------
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This command provides a way to interact with p4 repositories
|
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using git.
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|
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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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|
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|
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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
|
||||
work on top:
|
||||
+
|
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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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|
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|
||||
COMMANDS
|
||||
--------
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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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$ git p4 clone //depot/path/project
|
||||
------------
|
||||
This:
|
||||
|
||||
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
|
||||
depot path into a single commit in the git branch 'refs/remotes/p4/master'.
|
||||
+
|
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3. Creates a local branch, 'master' from this remote and checks it out.
|
||||
|
||||
To reproduce the entire p4 history in git, use the '@all' modifier on
|
||||
the depot path:
|
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------------
|
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$ git p4 clone //depot/path/project@all
|
||||
------------
|
||||
|
||||
|
||||
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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------------
|
||||
$ git p4 sync
|
||||
------------
|
||||
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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$ 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
|
||||
------------
|
||||
This imports the specified depot into
|
||||
'refs/remotes/p4/master' in an existing git repository. The
|
||||
'--branch' option can be used to specify a different branch to
|
||||
be used for the p4 content.
|
||||
|
||||
If a git repository includes branches 'refs/remotes/origin/p4', these
|
||||
will be fetched and consulted first during a 'git p4 sync'. Since
|
||||
importing directly from p4 is considerably slower than pulling changes
|
||||
from a git remote, this can be useful in a multi-developer environment.
|
||||
|
||||
|
||||
Rebase
|
||||
~~~~~~
|
||||
A common working pattern is to fetch the latest changes from the p4 depot
|
||||
and merge them with local uncommitted changes. Often, the p4 repository
|
||||
is the ultimate location for all code, thus a rebase workflow makes
|
||||
sense. This command does 'git p4 sync' followed by 'git rebase' to move
|
||||
local commits on top of updated p4 changes.
|
||||
------------
|
||||
$ git p4 rebase
|
||||
------------
|
||||
|
||||
|
||||
Submit
|
||||
~~~~~~
|
||||
Submitting changes from a git repository back to the p4 repository
|
||||
requires a separate p4 client workspace. This should be specified
|
||||
using the 'P4CLIENT' environment variable or the git configuration
|
||||
variable 'git-p4.client'. The p4 client must exist, but the client root
|
||||
will be created and populated if it does not already exist.
|
||||
|
||||
To submit all changes that are in the current git branch but not in
|
||||
the 'p4/master' branch, use:
|
||||
------------
|
||||
$ git p4 submit
|
||||
------------
|
||||
|
||||
To specify a branch other than the current one, use:
|
||||
------------
|
||||
$ git p4 submit topicbranch
|
||||
------------
|
||||
|
||||
The upstream reference is generally 'refs/remotes/p4/master', but can
|
||||
be overridden using the '--origin=' command-line option.
|
||||
|
||||
The p4 changes will be created as the user invoking 'git p4 submit'. The
|
||||
'--preserve-user' option will cause ownership to be modified
|
||||
according to the author of the git commit. This option requires admin
|
||||
privileges in p4, which can be granted using 'p4 protect'.
|
||||
|
||||
|
||||
OPTIONS
|
||||
-------
|
||||
|
||||
General options
|
||||
~~~~~~~~~~~~~~~
|
||||
All commands except clone accept this option.
|
||||
|
||||
--git-dir <dir>::
|
||||
Set the 'GIT_DIR' environment variable. See linkgit:git[1].
|
||||
|
||||
Sync options
|
||||
~~~~~~~~~~~~
|
||||
These options can be used in the initial 'clone' as well as in
|
||||
subsequent 'sync' operations.
|
||||
|
||||
--branch <branch>::
|
||||
Import changes into given branch. If the branch starts with
|
||||
'refs/', it will be used as is, otherwise the path 'refs/heads/'
|
||||
will be prepended. The default branch is 'master'. If used
|
||||
with an initial clone, no HEAD will be checked out.
|
||||
+
|
||||
This example imports a new remote "p4/proj2" into an existing
|
||||
git repository:
|
||||
----
|
||||
$ git init
|
||||
$ git p4 sync --branch=refs/remotes/p4/proj2 //depot/proj2
|
||||
----
|
||||
|
||||
--detect-branches::
|
||||
Use the branch detection algorithm to find new paths in p4. It is
|
||||
documented below in "BRANCH DETECTION".
|
||||
|
||||
--changesfile <file>::
|
||||
Import exactly the p4 change numbers listed in 'file', one per
|
||||
line. Normally, 'git p4' inspects the current p4 repository
|
||||
state and detects the changes it should import.
|
||||
|
||||
--silent::
|
||||
Do not print any progress information.
|
||||
|
||||
--verbose::
|
||||
Provide more progress information.
|
||||
|
||||
--detect-labels::
|
||||
Query p4 for labels associated with the depot paths, and add
|
||||
them as tags in git.
|
||||
|
||||
--import-local::
|
||||
By default, p4 branches are stored in 'refs/remotes/p4/',
|
||||
where they will be treated as remote-tracking branches by
|
||||
linkgit:git-branch[1] and other commands. This option instead
|
||||
puts p4 branches in 'refs/heads/p4/'. Note that future
|
||||
sync operations must specify '--import-local' as well so that
|
||||
they can find the p4 branches in refs/heads.
|
||||
|
||||
--max-changes <n>::
|
||||
Limit the number of imported changes to 'n'. Useful to
|
||||
limit the amount of history when using the '@all' p4 revision
|
||||
specifier.
|
||||
|
||||
--keep-path::
|
||||
The mapping of file names from the p4 depot path to git, by
|
||||
default, involves removing the entire depot path. With this
|
||||
option, the full p4 depot path is retained in git. For example,
|
||||
path '//depot/main/foo/bar.c', when imported from
|
||||
'//depot/main/', becomes 'foo/bar.c'. With '--keep-path', the
|
||||
git path is instead 'depot/main/foo/bar.c'.
|
||||
|
||||
--use-client-spec::
|
||||
Use a client spec to find the list of interesting files in p4.
|
||||
The client spec is discovered using 'p4 client -o' which checks
|
||||
the 'P4CLIENT' environment variable and returns a mapping of
|
||||
depot files to workspace files. Note that a depot path is
|
||||
still required, but files found in the path that match in
|
||||
the client spec view will be laid out according to the client
|
||||
spec.
|
||||
|
||||
Clone options
|
||||
~~~~~~~~~~~~~
|
||||
These options can be used in an initial 'clone', along with the 'sync'
|
||||
options described above.
|
||||
|
||||
--destination <directory>::
|
||||
Where to create the git repository. If not provided, the last
|
||||
component in the p4 depot path is used to create a new
|
||||
directory.
|
||||
|
||||
--bare::
|
||||
Perform a bare clone. See linkgit:git-clone[1].
|
||||
|
||||
-/ <path>::
|
||||
Exclude selected depot paths when cloning.
|
||||
|
||||
Submit options
|
||||
~~~~~~~~~~~~~~
|
||||
These options can be used to modify 'git p4 submit' behavior.
|
||||
|
||||
--verbose::
|
||||
Provide more progress information.
|
||||
|
||||
--origin <commit>::
|
||||
Upstream location from which commits are identified to submit to
|
||||
p4. By default, this is the most recent p4 commit reachable
|
||||
from 'HEAD'.
|
||||
|
||||
-M[<n>]::
|
||||
Detect renames. See linkgit:git-diff[1]. Renames will be
|
||||
represented in p4 using explicit 'move' operations. There
|
||||
is no corresponding option to detect copies, but there are
|
||||
variables for both moves and copies.
|
||||
|
||||
--preserve-user::
|
||||
Re-author p4 changes before submitting to p4. This option
|
||||
requires p4 admin privileges.
|
||||
|
||||
|
||||
DEPOT PATH SYNTAX
|
||||
-----------------
|
||||
The p4 depot path argument to 'git p4 sync' and 'git p4 clone' can
|
||||
be one or more space-separated p4 depot paths, with an optional
|
||||
p4 revision specifier on the end:
|
||||
|
||||
"//depot/my/project"::
|
||||
Import one commit with all files in the '#head' change under that tree.
|
||||
|
||||
"//depot/my/project@all"::
|
||||
Import one commit for each change in the history of that depot path.
|
||||
|
||||
"//depot/my/project@1,6"::
|
||||
Import only changes 1 through 6.
|
||||
|
||||
"//depot/proj1@all //depot/proj2@all"::
|
||||
Import all changes from both named depot paths into a single
|
||||
repository. Only files below these directories are included.
|
||||
There is not a subdirectory in git for each "proj1" and "proj2".
|
||||
You must use the '--destination' option when specifying more
|
||||
than one depot path. The revision specifier must be specified
|
||||
identically on each depot path. If there are files in the
|
||||
depot paths with the same name, the path with the most recently
|
||||
updated version of the file is the one that appears in git.
|
||||
|
||||
See 'p4 help revisions' for the full syntax of p4 revision specifiers.
|
||||
|
||||
|
||||
BRANCH DETECTION
|
||||
----------------
|
||||
P4 does not have the same concept of a branch as git. Instead,
|
||||
p4 organizes its content as a directory tree, where by convention
|
||||
different logical branches are in different locations in the tree.
|
||||
The 'p4 branch' command is used to maintain mappings between
|
||||
different areas in the tree, and indicate related content. 'git p4'
|
||||
can use these mappings to determine branch relationships.
|
||||
|
||||
If you have a repository where all the branches of interest exist as
|
||||
subdirectories of a single depot path, you can use '--detect-branches'
|
||||
when cloning or syncing to have 'git p4' automatically find
|
||||
subdirectories in p4, and to generate these as branches in git.
|
||||
|
||||
For example, if the P4 repository structure is:
|
||||
----
|
||||
//depot/main/...
|
||||
//depot/branch1/...
|
||||
----
|
||||
|
||||
And "p4 branch -o branch1" shows a View line that looks like:
|
||||
----
|
||||
//depot/main/... //depot/branch1/...
|
||||
----
|
||||
|
||||
Then this 'git p4 clone' command:
|
||||
----
|
||||
git p4 clone --detect-branches //depot@all
|
||||
----
|
||||
produces a separate branch in 'refs/remotes/p4/' for //depot/main,
|
||||
called 'master', and one for //depot/branch1 called 'depot/branch1'.
|
||||
|
||||
However, it is not necessary to create branches in p4 to be able to use
|
||||
them like branches. Because it is difficult to infer branch
|
||||
relationships automatically, a git configuration setting
|
||||
'git-p4.branchList' can be used to explicitly identify branch
|
||||
relationships. It is a list of "source:destination" pairs, like a
|
||||
simple p4 branch specification, where the "source" and "destination" are
|
||||
the path elements in the p4 repository. The example above relied on the
|
||||
presence of the p4 branch. Without p4 branches, the same result will
|
||||
occur with:
|
||||
----
|
||||
git config git-p4.branchList main:branch1
|
||||
git p4 clone --detect-branches //depot@all
|
||||
----
|
||||
|
||||
|
||||
PERFORMANCE
|
||||
-----------
|
||||
The fast-import mechanism used by 'git p4' creates one pack file for
|
||||
each invocation of 'git p4 sync'. Normally, git garbage compression
|
||||
(linkgit:git-gc[1]) automatically compresses these to fewer pack files,
|
||||
but explicit invocation of 'git repack -adf' may improve performance.
|
||||
|
||||
|
||||
CONFIGURATION VARIABLES
|
||||
-----------------------
|
||||
The following config settings can be used to modify 'git p4' behavior.
|
||||
They all are in the 'git-p4' section.
|
||||
|
||||
General variables
|
||||
~~~~~~~~~~~~~~~~~
|
||||
git-p4.user::
|
||||
User specified as an option to all p4 commands, with '-u <user>'.
|
||||
The environment variable 'P4USER' can be used instead.
|
||||
|
||||
git-p4.password::
|
||||
Password specified as an option to all p4 commands, with
|
||||
'-P <password>'.
|
||||
The environment variable 'P4PASS' can be used instead.
|
||||
|
||||
git-p4.port::
|
||||
Port specified as an option to all p4 commands, with
|
||||
'-p <port>'.
|
||||
The environment variable 'P4PORT' can be used instead.
|
||||
|
||||
git-p4.host::
|
||||
Host specified as an option to all p4 commands, with
|
||||
'-h <host>'.
|
||||
The environment variable 'P4HOST' can be used instead.
|
||||
|
||||
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. Branch names
|
||||
must be the short names (no "refs/heads/"), and should be
|
||||
separated by commas (","), with no spaces.
|
||||
|
||||
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.
|
|
@ -362,6 +362,11 @@ def isValidGitDir(path):
|
|||
def parseRevision(ref):
|
||||
return read_pipe("git rev-parse %s" % ref).strip()
|
||||
|
||||
def branchExists(ref):
|
||||
rev = read_pipe(["git", "rev-parse", "-q", "--verify", ref],
|
||||
ignore_error=True)
|
||||
return len(rev) > 0
|
||||
|
||||
def extractLogMessageFromGitCommit(commit):
|
||||
logMessage = ""
|
||||
|
||||
|
@ -1089,6 +1094,8 @@ class P4Submit(Command, P4UserMap):
|
|||
die("Detecting current git branch failed!")
|
||||
elif len(args) == 1:
|
||||
self.master = args[0]
|
||||
if not branchExists(self.master):
|
||||
die("Branch %s does not exist" % self.master)
|
||||
else:
|
||||
return False
|
||||
|
||||
|
@ -1951,7 +1958,10 @@ class P4Sync(Command, P4UserMap):
|
|||
if not gitBranchExists(self.refPrefix + "HEAD") and self.importIntoRemotes and gitBranchExists(self.branch):
|
||||
system("git symbolic-ref %sHEAD %s" % (self.refPrefix, self.branch))
|
||||
|
||||
if self.useClientSpec or gitConfig("git-p4.useclientspec") == "true":
|
||||
if not self.useClientSpec:
|
||||
if gitConfig("git-p4.useclientspec", "--bool") == "true":
|
||||
self.useClientSpec = True
|
||||
if self.useClientSpec:
|
||||
self.getClientSpec()
|
||||
|
||||
# TODO: should always look at previous commits,
|
||||
|
@ -2024,6 +2034,17 @@ class P4Sync(Command, P4UserMap):
|
|||
revision = ""
|
||||
self.users = {}
|
||||
|
||||
# Make sure no revision specifiers are used when --changesfile
|
||||
# is specified.
|
||||
bad_changesfile = False
|
||||
if len(self.changesFile) > 0:
|
||||
for p in self.depotPaths:
|
||||
if p.find("@") >= 0 or p.find("#") >= 0:
|
||||
bad_changesfile = True
|
||||
break
|
||||
if bad_changesfile:
|
||||
die("Option --changesfile is incompatible with revision specifiers")
|
||||
|
||||
newPaths = []
|
||||
for p in self.depotPaths:
|
||||
if p.find("@") != -1:
|
||||
|
@ -2040,7 +2061,10 @@ class P4Sync(Command, P4UserMap):
|
|||
revision = p[hashIdx:]
|
||||
p = p[:hashIdx]
|
||||
elif self.previousDepotPaths == []:
|
||||
revision = "#head"
|
||||
# pay attention to changesfile, if given, else import
|
||||
# the entire p4 tree at the head revision
|
||||
if len(self.changesFile) == 0:
|
||||
revision = "#head"
|
||||
|
||||
p = re.sub ("\.\.\.$", "", p)
|
||||
if not p.endswith("/"):
|
||||
|
@ -2335,7 +2359,8 @@ def main():
|
|||
args = sys.argv[2:]
|
||||
|
||||
if len(options) > 0:
|
||||
options.append(optparse.make_option("--git-dir", dest="gitdir"))
|
||||
if cmd.needsGit:
|
||||
options.append(optparse.make_option("--git-dir", dest="gitdir"))
|
||||
|
||||
parser = optparse.OptionParser(cmd.usage.replace("%prog", "%prog " + cmdName),
|
||||
options,
|
||||
|
@ -2365,6 +2390,7 @@ def main():
|
|||
|
||||
if not cmd.run(args):
|
||||
parser.print_help()
|
||||
sys.exit(2)
|
||||
|
||||
|
||||
if __name__ == '__main__':
|
||||
|
|
|
@ -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
|
||||
|
|
@ -65,6 +65,66 @@ test_expect_success 'git-p4 sync new branch' '
|
|||
)
|
||||
'
|
||||
|
||||
test_expect_success 'clone two dirs' '
|
||||
(
|
||||
cd "$cli" &&
|
||||
mkdir sub1 sub2 &&
|
||||
echo sub1/f1 >sub1/f1 &&
|
||||
echo sub2/f2 >sub2/f2 &&
|
||||
p4 add sub1/f1 &&
|
||||
p4 submit -d "sub1/f1" &&
|
||||
p4 add sub2/f2 &&
|
||||
p4 submit -d "sub2/f2"
|
||||
) &&
|
||||
"$GITP4" clone --dest="$git" //depot/sub1 //depot/sub2 &&
|
||||
test_when_finished cleanup_git &&
|
||||
(
|
||||
cd "$git" &&
|
||||
git ls-files >lines &&
|
||||
test_line_count = 2 lines &&
|
||||
git log --oneline p4/master >lines &&
|
||||
test_line_count = 1 lines
|
||||
)
|
||||
'
|
||||
|
||||
test_expect_success 'clone two dirs, @all' '
|
||||
(
|
||||
cd "$cli" &&
|
||||
echo sub1/f3 >sub1/f3 &&
|
||||
p4 add sub1/f3 &&
|
||||
p4 submit -d "sub1/f3"
|
||||
) &&
|
||||
"$GITP4" clone --dest="$git" //depot/sub1@all //depot/sub2@all &&
|
||||
test_when_finished cleanup_git &&
|
||||
(
|
||||
cd "$git" &&
|
||||
git ls-files >lines &&
|
||||
test_line_count = 3 lines &&
|
||||
git log --oneline p4/master >lines &&
|
||||
test_line_count = 3 lines
|
||||
)
|
||||
'
|
||||
|
||||
test_expect_success 'clone two dirs, @all, conflicting files' '
|
||||
(
|
||||
cd "$cli" &&
|
||||
echo sub2/f3 >sub2/f3 &&
|
||||
p4 add sub2/f3 &&
|
||||
p4 submit -d "sub2/f3"
|
||||
) &&
|
||||
"$GITP4" clone --dest="$git" //depot/sub1@all //depot/sub2@all &&
|
||||
test_when_finished cleanup_git &&
|
||||
(
|
||||
cd "$git" &&
|
||||
git ls-files >lines &&
|
||||
test_line_count = 3 lines &&
|
||||
git log --oneline p4/master >lines &&
|
||||
test_line_count = 4 lines &&
|
||||
echo sub2/f3 >expected &&
|
||||
test_cmp expected f3
|
||||
)
|
||||
'
|
||||
|
||||
test_expect_success 'exit when p4 fails to produce marshaled output' '
|
||||
badp4dir="$TRASH_DIRECTORY/badp4dir" &&
|
||||
mkdir "$badp4dir" &&
|
|
@ -0,0 +1,170 @@
|
|||
#!/bin/sh
|
||||
|
||||
test_description='git-p4 options'
|
||||
|
||||
. ./lib-git-p4.sh
|
||||
|
||||
test_expect_success 'start p4d' '
|
||||
start_p4d
|
||||
'
|
||||
|
||||
test_expect_success 'init depot' '
|
||||
(
|
||||
cd "$cli" &&
|
||||
echo file1 >file1 &&
|
||||
p4 add file1 &&
|
||||
p4 submit -d "change 1" &&
|
||||
echo file2 >file2 &&
|
||||
p4 add file2 &&
|
||||
p4 submit -d "change 2" &&
|
||||
echo file3 >file3 &&
|
||||
p4 add file3 &&
|
||||
p4 submit -d "change 3"
|
||||
)
|
||||
'
|
||||
|
||||
test_expect_success 'clone no --git-dir' '
|
||||
test_must_fail "$GITP4" clone --git-dir=xx //depot
|
||||
'
|
||||
|
||||
test_expect_success 'clone --branch' '
|
||||
"$GITP4" clone --branch=refs/remotes/p4/sb --dest="$git" //depot &&
|
||||
test_when_finished cleanup_git &&
|
||||
(
|
||||
cd "$git" &&
|
||||
git ls-files >files &&
|
||||
test_line_count = 0 files &&
|
||||
test_path_is_file .git/refs/remotes/p4/sb
|
||||
)
|
||||
'
|
||||
|
||||
test_expect_success 'clone --changesfile' '
|
||||
cf="$TRASH_DIRECTORY/cf" &&
|
||||
test_when_finished "rm \"$cf\"" &&
|
||||
printf "1\n3\n" >"$cf" &&
|
||||
"$GITP4" clone --changesfile="$cf" --dest="$git" //depot &&
|
||||
test_when_finished cleanup_git &&
|
||||
(
|
||||
cd "$git" &&
|
||||
git log --oneline p4/master >lines &&
|
||||
test_line_count = 2 lines
|
||||
test_path_is_file file1 &&
|
||||
test_path_is_missing file2 &&
|
||||
test_path_is_file file3
|
||||
)
|
||||
'
|
||||
|
||||
test_expect_success 'clone --changesfile, @all' '
|
||||
cf="$TRASH_DIRECTORY/cf" &&
|
||||
test_when_finished "rm \"$cf\"" &&
|
||||
printf "1\n3\n" >"$cf" &&
|
||||
test_must_fail "$GITP4" clone --changesfile="$cf" --dest="$git" //depot@all
|
||||
'
|
||||
|
||||
# imports both master and p4/master in refs/heads
|
||||
# requires --import-local on sync to find p4 refs/heads
|
||||
# does not update master on sync, just p4/master
|
||||
test_expect_success 'clone/sync --import-local' '
|
||||
"$GITP4" clone --import-local --dest="$git" //depot@1,2 &&
|
||||
test_when_finished cleanup_git &&
|
||||
(
|
||||
cd "$git" &&
|
||||
git log --oneline refs/heads/master >lines &&
|
||||
test_line_count = 2 lines &&
|
||||
git log --oneline refs/heads/p4/master >lines &&
|
||||
test_line_count = 2 lines &&
|
||||
test_must_fail "$GITP4" sync &&
|
||||
|
||||
"$GITP4" sync --import-local &&
|
||||
git log --oneline refs/heads/master >lines &&
|
||||
test_line_count = 2 lines &&
|
||||
git log --oneline refs/heads/p4/master >lines &&
|
||||
test_line_count = 3 lines
|
||||
)
|
||||
'
|
||||
|
||||
test_expect_success 'clone --max-changes' '
|
||||
"$GITP4" clone --dest="$git" --max-changes 2 //depot@all &&
|
||||
test_when_finished cleanup_git &&
|
||||
(
|
||||
cd "$git" &&
|
||||
git log --oneline refs/heads/master >lines &&
|
||||
test_line_count = 2 lines
|
||||
)
|
||||
'
|
||||
|
||||
test_expect_success 'clone --keep-path' '
|
||||
(
|
||||
cd "$cli" &&
|
||||
mkdir -p sub/dir &&
|
||||
echo f4 >sub/dir/f4 &&
|
||||
p4 add sub/dir/f4 &&
|
||||
p4 submit -d "change 4"
|
||||
) &&
|
||||
"$GITP4" clone --dest="$git" --keep-path //depot/sub/dir@all &&
|
||||
test_when_finished cleanup_git &&
|
||||
(
|
||||
cd "$git" &&
|
||||
test_path_is_missing f4 &&
|
||||
test_path_is_file sub/dir/f4
|
||||
) &&
|
||||
cleanup_git &&
|
||||
"$GITP4" clone --dest="$git" //depot/sub/dir@all &&
|
||||
(
|
||||
cd "$git" &&
|
||||
test_path_is_file f4 &&
|
||||
test_path_is_missing sub/dir/f4
|
||||
)
|
||||
'
|
||||
|
||||
# clone --use-client-spec must still specify a depot path
|
||||
# if given, it should rearrange files according to client spec
|
||||
# when it has view lines that match the depot path
|
||||
# XXX: should clone/sync just use the client spec exactly, rather
|
||||
# than needing depot paths?
|
||||
test_expect_success 'clone --use-client-spec' '
|
||||
(
|
||||
# big usage message
|
||||
exec >/dev/null &&
|
||||
test_must_fail "$GITP4" clone --dest="$git" --use-client-spec
|
||||
) &&
|
||||
cli2="$TRASH_DIRECTORY/cli2" &&
|
||||
mkdir -p "$cli2" &&
|
||||
test_when_finished "rmdir \"$cli2\"" &&
|
||||
(
|
||||
cd "$cli2" &&
|
||||
p4 client -i <<-EOF
|
||||
Client: client2
|
||||
Description: client2
|
||||
Root: $cli2
|
||||
View: //depot/sub/... //client2/bus/...
|
||||
EOF
|
||||
) &&
|
||||
P4CLIENT=client2 &&
|
||||
test_when_finished cleanup_git &&
|
||||
"$GITP4" clone --dest="$git" --use-client-spec //depot/... &&
|
||||
(
|
||||
cd "$git" &&
|
||||
test_path_is_file bus/dir/f4 &&
|
||||
test_path_is_file file1
|
||||
) &&
|
||||
cleanup_git &&
|
||||
|
||||
# same thing again, this time with variable instead of option
|
||||
mkdir "$git" &&
|
||||
(
|
||||
cd "$git" &&
|
||||
git init &&
|
||||
git config git-p4.useClientSpec true &&
|
||||
"$GITP4" sync //depot/... &&
|
||||
git checkout -b master p4/master &&
|
||||
test_path_is_file bus/dir/f4 &&
|
||||
test_path_is_file file1
|
||||
)
|
||||
'
|
||||
|
||||
test_expect_success 'kill p4d' '
|
||||
kill_p4d
|
||||
'
|
||||
|
||||
test_done
|
|
@ -0,0 +1,92 @@
|
|||
#!/bin/sh
|
||||
|
||||
test_description='git-p4 submit'
|
||||
|
||||
. ./lib-git-p4.sh
|
||||
|
||||
test_expect_success 'start p4d' '
|
||||
start_p4d
|
||||
'
|
||||
|
||||
test_expect_success 'init depot' '
|
||||
(
|
||||
cd "$cli" &&
|
||||
echo file1 >file1 &&
|
||||
p4 add file1 &&
|
||||
p4 submit -d "change 1"
|
||||
)
|
||||
'
|
||||
|
||||
test_expect_success 'submit with no client dir' '
|
||||
test_when_finished cleanup_git &&
|
||||
"$GITP4" clone --dest="$git" //depot &&
|
||||
(
|
||||
cd "$git" &&
|
||||
echo file2 >file2 &&
|
||||
git add file2 &&
|
||||
git commit -m "git commit 2" &&
|
||||
rm -rf "$cli" &&
|
||||
git config git-p4.skipSubmitEdit true &&
|
||||
"$GITP4" submit
|
||||
)
|
||||
'
|
||||
|
||||
# make two commits, but tell it to apply only from HEAD^
|
||||
test_expect_success 'submit --origin' '
|
||||
test_when_finished cleanup_git &&
|
||||
"$GITP4" clone --dest="$git" //depot &&
|
||||
(
|
||||
cd "$git" &&
|
||||
test_commit "file3" &&
|
||||
test_commit "file4" &&
|
||||
git config git-p4.skipSubmitEdit true &&
|
||||
"$GITP4" submit --origin=HEAD^
|
||||
) &&
|
||||
(
|
||||
cd "$cli" &&
|
||||
p4 sync &&
|
||||
test_path_is_missing "file3.t" &&
|
||||
test_path_is_file "file4.t"
|
||||
)
|
||||
'
|
||||
|
||||
test_expect_success 'submit with allowSubmit' '
|
||||
test_when_finished cleanup_git &&
|
||||
"$GITP4" clone --dest="$git" //depot &&
|
||||
(
|
||||
cd "$git" &&
|
||||
test_commit "file5" &&
|
||||
git config git-p4.skipSubmitEdit true &&
|
||||
git config git-p4.allowSubmit "nobranch" &&
|
||||
test_must_fail "$GITP4" submit &&
|
||||
git config git-p4.allowSubmit "nobranch,master" &&
|
||||
"$GITP4" submit
|
||||
)
|
||||
'
|
||||
|
||||
test_expect_success 'submit with master branch name from argv' '
|
||||
test_when_finished cleanup_git &&
|
||||
"$GITP4" clone --dest="$git" //depot &&
|
||||
(
|
||||
cd "$git" &&
|
||||
test_commit "file6" &&
|
||||
git config git-p4.skipSubmitEdit true &&
|
||||
test_must_fail "$GITP4" submit nobranch &&
|
||||
git branch otherbranch &&
|
||||
git reset --hard HEAD^ &&
|
||||
test_commit "file7" &&
|
||||
"$GITP4" submit otherbranch
|
||||
) &&
|
||||
(
|
||||
cd "$cli" &&
|
||||
p4 sync &&
|
||||
test_path_is_file "file6.t" &&
|
||||
test_path_is_missing "file7.t"
|
||||
)
|
||||
'
|
||||
|
||||
test_expect_success 'kill p4d' '
|
||||
kill_p4d
|
||||
'
|
||||
|
||||
test_done
|
|
@ -1,38 +0,0 @@
|
|||
#!/bin/sh
|
||||
|
||||
test_description='git-p4 submit'
|
||||
|
||||
. ./lib-git-p4.sh
|
||||
|
||||
test_expect_success 'start p4d' '
|
||||
start_p4d
|
||||
'
|
||||
|
||||
test_expect_success 'init depot' '
|
||||
(
|
||||
cd "$cli" &&
|
||||
echo file1 >file1 &&
|
||||
p4 add file1 &&
|
||||
p4 submit -d "change 1"
|
||||
)
|
||||
'
|
||||
|
||||
test_expect_success 'submit with no client dir' '
|
||||
test_when_finished cleanup_git &&
|
||||
"$GITP4" clone --dest="$git" //depot &&
|
||||
(
|
||||
cd "$git" &&
|
||||
echo file2 >file2 &&
|
||||
git add file2 &&
|
||||
git commit -m "git commit 2" &&
|
||||
rm -rf "$cli" &&
|
||||
git config git-p4.skipSubmitEdit true &&
|
||||
"$GITP4" submit
|
||||
)
|
||||
'
|
||||
|
||||
test_expect_success 'kill p4d' '
|
||||
kill_p4d
|
||||
'
|
||||
|
||||
test_done
|
Загрузка…
Ссылка в новой задаче