Since most ref namespaces are shared among all worktrees, trying to
set the pseudo m/<branch> in the common git repo ends up clobbering
each other when using shared checkouts. For example, in CrOS:
<project path="src/third_party/kernel/v3.8"
name="chromiumos/third_party/kernel"
revision="refs/heads/chromeos-3.8" />
<project path="src/third_party/kernel/v3.10"
name="chromiumos/third_party/kernel"
revision="refs/heads/chromeos-3.10" />
Trying to set m/master in chromiumos/third_party/kernel.git/ will
keep clobbering the other.
Instead, when using git worktrees, lets set the m/ pseudo ref to
point into the refs/worktree/ namespace which is unique to each
git worktree. So we have in the common dir:
chromiumos/third_party/kernel.git/:
refs/remotes/m/master:
ref: refs/worktree/m/master
And then in each worktree we point refs/worktree/m/master to the
respective manifest revision expression. Now people can use the
m/master in each git worktree and have it resolve to the right
commit for that worktree.
Bug: https://crbug.com/gerrit/12404
Change-Id: I78814bdd5dd67bb13218c4c6ccd64f8a15dd0a52
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/256952
Tested-by: Mike Frysinger <vapier@google.com>
Reviewed-by: David Pursehouse <dpursehouse@collab.net>
Use open() as a context manager to simplify the close logic and make
the code easier to read & understand. This is also more Pythonic.
Change-Id: I579d03cca86f99b2c6c6a1f557f6e5704e2515a7
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/244734
Reviewed-by: David Pursehouse <dpursehouse@collab.net>
Tested-by: Mike Frysinger <vapier@google.com>
There is a standard Python "trace" module, so having a local trace.py
prevents us being able to import that. Rename the module to avoid.
Change-Id: I23e29ec95a2204bb168a641323d05e76968d9b57
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/234832
Reviewed-by: David Pursehouse <dpursehouse@collab.net>
Tested-by: Mike Frysinger <vapier@google.com>
There's no reason to support any other encoding in these files.
This only affects the files themselves and not streams they open.
Bug: https://crbug.com/gerrit/10418
Change-Id: I053cb40cd3666ce5c8a0689b9dd938f24ca765bf
* Add more file i/o wrappers in platform_utils to allow using
long paths (length > MAX_PATH) on Windows.
* Paths using the long path syntax ("\\?\" prefix) should never
escape the platform_utils API surface area, so that this
specific syntax is not visible to the rest of the repo code base.
* Forward many calls from os.xxx to platform_utils.xxx in various place
to ensure long paths support, specifically when repo decides to delete
obsolete directories.
* There are more places that need to be converted to support long paths,
this commit is an initial effort to unblock a few common use cases.
* Also, fix remove function to handle directory symlinks
Change-Id: If82ccc408e516e96ff7260be25f8fd2fe3f9571a
Without this change, '.git\HEAD' files, for examples, are sometime
read incorrectly resulting in the current branch to be reset to
"master" when running a "repo init -b xxx" on an already initialized
repository.
Change-Id: I48c7ef85ff81626edf156914329a560e14252f2a
When starting a branch, branch.merge is set to project revision unless
the revision is a SHA1. In that case, branch.merge is set to dest_branch
if defined or manifest default revision otherwise. This special handling
allows repo upload to work when the project revision is a SHA1.
Extend the special handling to also happen when the project revision
is a tag value or a change value so that repo upload will work in those
case as well.
Change-Id: Iff81ece40e770cd02535e80dcb023564d42dcf47
* Add .decode('utf-8') where needed
* Add 'b' to `open` where needed, and remove where unnecessary
Change-Id: I0f03ecf9ed1a78e3b2f15f9469deb9aaab698657
* Fix imports.
* Use python3 syntax.
* Wrap map() calls with list().
* Use list() only wherever needed.
(Thanks Conley!)
* Fix dictionary iteration methods
(s/iteritems/items/).
* Make use of sorted() in appropriate places
* Use iterators directly in the loop.
* Don't use .keys() wherever it isn't needed.
* Use sys.maxsize instead of sys.maxint
TODO:
* Make repo work fully with python3. :)
Some of this was done by the '2to3' tool [1], by
applying the needed fixes in a way that doesn't
break compatibility with python2.
Links:
[1]: http://docs.python.org/2/library/2to3.html
Change-Id: Ibdf3bf9a530d716db905733cb9bfef83a48820f7
Signed-off-by: Chirayu Desai <cdesai@cyanogenmod.org>
Fixing some more pylint warnings:
W1401: Anomalous backslash in string
W0623: Redefining name 'name' from outer scope
W0702: No exception type(s) specified
E0102: name: function already defined line n
Change-Id: I5afcdb4771ce210390a79981937806e30900a93c
Fix the following issues reported by pylint:
C0321: More than one statement on a single line
W0622: Redefining built-in 'name'
W0612: Unused variable 'name'
W0613: Unused argument 'name'
W0102: Dangerous default value 'value' as argument
W0105: String statement has no effect
Also fixed a few cases of inconsistent indentation.
Change-Id: Ie0db839e7c57d576cff12d8c055fe87030d00744
When repo is trying to figure out branches the repository has by
traversing refs/heads, add exception handling for readline.
Change-Id: If3b2a3720c6496f52f629aa9a2539f186d6ec882
The value of the varible TRACE was copied during the import, which
happens before the --trace option can be processed. So instead we
now use a function to determine if the value is set, as the function
can be safely copied early during import.
Signed-off-by: Shawn O. Pearce <sop@google.com>
These are not as expensive as spawning a git command, but they are
not free either. We want to keep track of how many times we wind
up calling them on any particular operation.
Signed-off-by: Shawn O. Pearce <sop@google.com>
If the m/BRANCH ref is already pointing at the value set in the
manifest there is no reason to set it again. Leave it alone,
thus saving a full fork+exec call.
Signed-off-by: Shawn O. Pearce <sop@google.com>
By resolving the current HEAD and the manifest revision using pure
Python, we can in the common case of "no changes" avoid a lot of
git operations and directly jump out of the local sync method.
This reduces the no-op `repo sync -l` time for Android's 114 projects
from more than 6s to under 0.8s.
Signed-off-by: Shawn O. Pearce <sop@google.com>
Its much faster to read the refs from 114 projects when the reader
is pure Python and just doing file IO than forking 114 git commands
and parsing their output.
The reader caches refs based upon file mtimes. If any single ref
file has been modified since the last read, we re-read the entire
repository's ref namespace. This simplifies the code as we don't
need to worry about shooting down symbolic-refs, but it may cause
more IO than is necessary if only one ref gets updated.
This change drops `repo branches` in Android from 1.658s to 0.206s.
Likewise, `repo sync` improves dramatically as well.
Signed-off-by: Shawn O. Pearce <sop@google.com>
