Commit Graph

1671 Commits

Author SHA1 Message Date
LaMont Jones
ff6b1dae1e Only sync superproject if it will be used.
If the user says `--no-use-superproject`, then do not bother syncing the
superproject.

Also add/update docstrings and comments throughout.

Change-Id: I9cdad706130501bab9a22d3099a1dae605e9c194
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/338975
Tested-by: LaMont Jones <lamontjones@google.com>
Reviewed-by: Mike Frysinger <vapier@google.com>
2022-06-08 16:49:08 +00:00
LaMont Jones
bdcba7dc36 sync: add multi-manifest support
With this change, partial syncs (sync with a project list) are again
supported.

If the updated manifest includes new sub manifests, download them
inheriting options from the parent manifestProject.

Change-Id: Id952f85df2e26d34e38b251973be26434443ff56
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/334819
Reviewed-by: Mike Frysinger <vapier@google.com>
Tested-by: LaMont Jones <lamontjones@google.com>
2022-05-26 00:03:37 +00:00
Mike Frysinger
1d00a7e2ae project: initial separation of shared project objects
For now, this is opt-in via environment variables:
  - export REPO_USE_ALTERNATES=1

The shared project logic that shares the internal .git/objects/ dir
directly between multiple projects via the project-objects/ tree has
a lot of KI with random corruption.  It all boils down to projects
sharing objects/ but not refs/.  Git operations that use refs to see
what objects are reachable and discard the rest can easily discard
objects that are used by other projects.

Consider this project layout:
<show fs layout>

There are unique refs in each of these trees that are not visible in
the others.  This means it's not safe to run basic operations like
git prune or git gc.

Since we can't share refs (each project needs to have unique refs
like HEAD in order to function), let's change how we share objects.
The old way involved symlinking .git/objects/ to the project-objects
tree.  The new way shares objects using git's info/alternates.

This means project-objects/ will only contain objects that exist in
the remote project.  Local per-project objects (like when creating
branches and making changes) will never be shared.  When running a
prune or gc operation in the per-project state, it will only ever
repack or discard those per-project objects.  The common shared
objects would only be cleaned up when running a common operation
(i.e. by repo itself).

One downside to this for users is if they try blending unrelated
upstream projects.  For example, in CrOS we have multiple kernel
projects (for diff versions) checked out.  If a dev fetched the
upstream Linus tree into one of them, the objects & tags would
not be shared with the others, so they would have to fetch the
upstream state for each project.  Annoying, but better than the
current corruption situation we're in now.

Also if the dev runs a manual `git fetch` in the per-project to
sync it up to newer state than the last `repo sync` they ran,
the objects would get duplicated.  However, git operations later
on should eventually dedupe this.

Bug: https://crbug.com/gerrit/15553
Change-Id: I313a9b8962f9d439ef98ac0ed37ecfb9e0b3864e
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/328101
Reviewed-by: Mike Frysinger <vapier@google.com>
Tested-by: LaMont Jones <lamontjones@google.com>
2022-05-26 00:02:18 +00:00
Mike Frysinger
3a0a145b0e upload: move label validation to core function
This way we know we don't need to encode the labels.

Change-Id: Ib83ed8f4ed05f00b9d2d06a9dd3f304e4443430e
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/337518
Tested-by: Mike Frysinger <vapier@google.com>
Reviewed-by: LaMont Jones <lamontjones@google.com>
2022-05-21 19:19:44 +00:00
Mike Frysinger
74737da1ab tests: switch to tempfile.TemporaryDirectory
Now that we don't need to support Python 2, we can switch to this
API for better contextmanager logic.

Change-Id: I2d03e391121886547e7808a3b5c3b470c411533f
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/337515
Reviewed-by: LaMont Jones <lamontjones@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2022-05-20 11:38:10 +00:00
LaMont Jones
0ddb677611 project: fix --use-superproject logic for init.
If init was run with --use-superproject, init failed.

If init was run without --{no,}use-superproject option then manifests
with <superproject/> elements were mishandled.

Bug: b/233226285
Test: manual
Change-Id: I737e71c89d2d7c324114f58bf2dc82b40e5beba7
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/337534
Reviewed-by: Mike Frysinger <vapier@google.com>
Tested-by: LaMont Jones <lamontjones@google.com>
2022-05-20 11:01:28 +00:00
LaMont Jones
501733c2ab manifest: add submanifest.default_groups attribute
When the user does not specify any manifest groups, this allows the
parent manifest to indicate which manifest groups should be used for
syncing the submanifest.

Change-Id: I88806ed35013d13dd2ab3cd245fcd4f9061112c4
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/335474
Tested-by: LaMont Jones <lamontjones@google.com>
Reviewed-by: Mike Frysinger <vapier@google.com>
2022-04-29 18:42:23 +00:00
LaMont Jones
0165e20fcc project: Do not exit early on --standalone-manifest.
After we successfully download the standalone manifest file, we cannot
exit early.

Bug: https://bugs.chromium.org/p/gerrit/issues/detail?id=15861
Change-Id: Ic47c9f7e9921851f94c6f24fd82b896eff524037
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/335974
Reviewed-by: Raman Tenneti <rtenneti@google.com>
Tested-by: LaMont Jones <lamontjones@google.com>
Reviewed-by: Mike Frysinger <vapier@google.com>
2022-04-29 17:13:49 +00:00
LaMont Jones
0de4fc3001 project: Add missing imports
Some imports were missed when moving manifestProject to project.py

Bug: https://bugs.chromium.org/p/gerrit/issues/detail?id=15861
Change-Id: Id8fffeaa3f88f344a13b5ab44e5403c7edd98f31
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/335554
Tested-by: LaMont Jones <lamontjones@google.com>
Reviewed-by: Mike Frysinger <vapier@google.com>
Reviewed-by: Raman Tenneti <rtenneti@google.com>
2022-04-21 18:44:26 +00:00
Mike Frysinger
4c11aebeb9 progress: optimize progress bar updates a bit
Rather than erase the entire line first then print out the new content,
print out the new content on top of the old and then erase anything we
didn't update.  This should result in a lot less flashing with faster
terminals.

Bug: https://crbug.com/gerrit/11293
Change-Id: Ie2920b0bf3d5e6f920b8631a1c406444b23cd12d
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/335214
Reviewed-by: LaMont Jones <lamontjones@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2022-04-19 23:50:48 +00:00
LaMont Jones
b90a422ab6 Override the manifest for the entire command
When a manifest file is overridden, remember that and keep using the
override for the remainder of the process.  If we need to revert it,
make the override name evaluate False.

Change-Id: I1eee05fec6988c1ee4a3c751c4b540d5b5d11797
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/335136
Tested-by: LaMont Jones <lamontjones@google.com>
Reviewed-by: Mike Frysinger <vapier@google.com>
2022-04-19 21:28:20 +00:00
LaMont Jones
a46047a822 sync: refactor use of self.manifest
We need to iterate over multiple manifests, and generally use the
outer_client.manifest for multi-manifest support.  This refactors the
use of self.manifest into a chosen manifest.

Change-Id: I992f21d610c929675e99555ece9c38df4b635839
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/334699
Tested-by: LaMont Jones <lamontjones@google.com>
Reviewed-by: Mike Frysinger <vapier@google.com>
2022-04-14 22:24:04 +00:00
LaMont Jones
5fa912b0d1 Stop passing optparse.Values to git_superproject
Make git_superproject independent of the command line by passing
the specific value instead of requiring the caller to have an
optparse.Values object to pass in.

Flag --use-superproject and --archive as incompatible in subcmds/init.py

Change-Id: Ied7c874b312e151038df903c8af4328f070f387c
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/335135
Tested-by: LaMont Jones <lamontjones@google.com>
Reviewed-by: Raman Tenneti <rtenneti@google.com>
Reviewed-by: Mike Frysinger <vapier@google.com>
2022-04-14 22:23:16 +00:00
LaMont Jones
4ada043dc0 ManifestProject: add manifest_platform
And fix most of the other attributes to return the value instead of
None.

Change-Id: Iddcbbeb56238ee082bb1cae30adbd27a2f551f3d
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/335134
Tested-by: LaMont Jones <lamontjones@google.com>
Reviewed-by: Raman Tenneti <rtenneti@google.com>
Reviewed-by: Xin Li <delphij@google.com>
2022-04-14 20:56:45 +00:00
LaMont Jones
d8de29c447 forall: fix multi-manifest variables.
- REPO_PATH is relative to the root of the client. REPO_OUTERPATH is not
  needed.
- REPO_INNERPATH is relative to the sub manifest root.
- REPO_OUTERPATH is the path for the sub manifest root relative to the
  root of the client.

Change-Id: I031692891cfef2634d1358584d27a6a4df735c20
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/334899
Reviewed-by: Mike Frysinger <vapier@google.com>
Tested-by: LaMont Jones <lamontjones@google.com>
2022-04-14 14:31:47 +00:00
LaMont Jones
2cc3ab7663 git_superproject: only print beta notice once.
This eliminates duplicate notices during multi-manifest syncs.

Change-Id: Idcb038ddeb363368637c58c11346ebf8fd2b27ac
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/334939
Reviewed-by: Mike Frysinger <vapier@google.com>
Tested-by: LaMont Jones <lamontjones@google.com>
2022-04-14 00:07:25 +00:00
LaMont Jones
d56e2eb421 manifest_xml: use Superproject to hold XML content
Always create Superproject when there is a <superproject> tag, and have
it hold the XML content, similar to how other manifest elements are
handled.

This also adds SetQuiet and SetPrintMessages to Superproject
consistent with manifest.SetUseLocalManifests.

Change-Id: I522bf3da542006575799f0640c67f7052704f266
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/334641
Reviewed-by: Mike Frysinger <vapier@google.com>
Reviewed-by: Raman Tenneti <rtenneti@google.com>
Tested-by: LaMont Jones <lamontjones@google.com>
2022-04-12 15:46:23 +00:00
Daniel Andersson
d52ca421d5 sync: respect sync-c manifest option
The documentation states that a `sync-c` attribute in the manifest file
can set a default for whether only the current branch should be fetched
or all branches. This seems to have been broken for some time.

Commit 7356114 introduced the `--no-current-branch` CLI option and
relied on getting `None` via `optparse` if neither `--current-branch`
nor `--no-current-branch` was set to distinguish it from a boolean
value. If `None` was received, it would read the value from the manifest
option `sync-c`. The parsing went through the utility function
`_GetCurrentBranchOnly` which returned `True` if `--current-branch` had
been given on the command-line, or fell back on the "superproject"
setting, which would either return `True` or `None`. This would
incorrectly make `repo` fall back to the manifest setting even if the
user had given `--no-current-branch` if no superproject was requested --
the manifest became "too powerful":

Command-line         Using superproject  → `current_branch_only`
------------         ------------------  -----------------------
                     No                  From manifest
                     Yes                 True
--current-branch     No                  True
--current-branch     Yes                 True
--no-current-branch  No                  From manifest ← wrong
--no-current-branch  Yes                 True

In commit 0cb6e92 the superproject configuration value reading changed
from something that could return `None` to something that always
returned a boolean. If it returned `False`, this would then incorrectly
make `repo` ignore the manifest option even if neither
`--current-branch` nor `--no-current-branch` had been given. The
manifest default became useless:

Command-line         Using superproject  → `current_branch_only`
------------         ------------------  -----------------------
                     No                  False ← wrong
                     Yes                 True
--current-branch     No                  True
--current-branch     Yes                 True
--no-current-branch  No                  False
--no-current-branch  Yes                 True

By swapping the order in which the command-line option target and the
superproject setting is evaluated, things should work as documented:

Command-line         Using superproject  → `current_branch_only`
------------         ------------------  -----------------------
                     No                  From manifest
                     Yes                 True
--current-branch     No                  True
--current-branch     Yes                 True
--no-current-branch  No                  False
--no-current-branch  Yes                 True

Change-Id: I933c232d2fbecc6b9bdc364ebac181798bce9175
Tested-by: Daniel Andersson <daniel.r.andersson@volvocars.com>
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/334270
Reviewed-by: Mike Frysinger <vapier@google.com>
2022-04-08 21:06:37 +00:00
LaMont Jones
a2ff20dd20 manifest_xml: Add Load and Unload methods
- do not call the internal method from subcmds/sync.py.
- use the correct default groups for submanifests.
- only sync the superproject when we are told to.

Change-Id: I81e4025058f1ee564732b9e17aecc522f6b5f626
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/334639
Reviewed-by: Mike Frysinger <vapier@google.com>
Reviewed-by: Raman Tenneti <rtenneti@google.com>
Tested-by: LaMont Jones <lamontjones@google.com>
2022-04-08 19:52:04 +00:00
LaMont Jones
55ee304304 Fix sub manifest handling
Also fixes some typos

Change-Id: Id2ba5834ba3a74ed3f29c36d2c0030737dc63e35
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/334579
Tested-by: LaMont Jones <lamontjones@google.com>
Reviewed-by: Mike Frysinger <vapier@google.com>
2022-04-06 21:04:46 +00:00
LaMont Jones
409407a731 init: add multi-manifest support
This moves more of the manifest project handling into ManifestProject.

Change-Id: Iecdafbec18cccdfd8e625753c3bd1bcddf2b227f
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/334520
Tested-by: LaMont Jones <lamontjones@google.com>
Reviewed-by: Mike Frysinger <vapier@google.com>
2022-04-06 17:02:40 +00:00
LaMont Jones
d82be3e672 Move manifest config logic into ManifestProject
Use ManifestProject properties for config values.

Change-Id: Ib4ad90b0d9a089916e35615b8058942e6d01dc04
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/334519
Tested-by: LaMont Jones <lamontjones@google.com>
Reviewed-by: Mike Frysinger <vapier@google.com>
2022-04-06 16:59:45 +00:00
LaMont Jones
9b03f15e8e project: add ManifestProject.Sync()
Move the logic to sync a ManifestProject out of subcmds/init.py

Change-Id: Ia9d00f3da1dc3c5dada84c4d19cf9802c2346cb0
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/334140
Tested-by: LaMont Jones <lamontjones@google.com>
Reviewed-by: Mike Frysinger <vapier@google.com>
2022-04-01 15:48:04 +00:00
LaMont Jones
9b72cf2ba5 project: Isolate ManifestProject from RepoProject
Create RepoProject and ManifestProject, inheriting from MetaProject,
  with methods separated for isolation and clarity.

Change-Id: Ic1d6efc65c99470290fea612e2abaf8670d199f4
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/334139
Tested-by: LaMont Jones <lamontjones@google.com>
Reviewed-by: Mike Frysinger <vapier@google.com>
2022-03-31 21:02:52 +00:00
LaMont Jones
5d3291d818 manifest_file must be an absolute path
Correctly pass the full path of the manifest file for the submanifest.
The manifest-name in the <submanifest/> element was being passed in
as given, which caused it to not be found since the current directory
never set. (b/226333721: fails when manifest-name is given.)

Also verify that the manifest_file passed to XmlManifest() is an
absolute path.

Bug: https://b.corp.google.com/issues/226333721
Change-Id: I23461078233e34562bc2eafeb732cfe8bd38ddc1
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/333861
Tested-by: LaMont Jones <lamontjones@google.com>
Reviewed-by: Mike Frysinger <vapier@google.com>
2022-03-23 21:18:41 +00:00
Josh Steadmon
244c9a71a6 trace: allow writing traces to a socket
Git can write trace2 events to a Unix domain socket [1]. This can be
specified via Git's `trace2.eventTarget` config option, which we read to
determine where to log our own trace2 events. Currently, if the Git
config specifies a socket as the trace2 target, we fail to log any
traces.

Fix this by adding support for writing to a Unix domain socket,
following the same specification that Git supports.

[1]: https://git-scm.com/docs/api-trace2#_enabling_a_target

Change-Id: I928bc22ba04fba603a9132eb055141845fa48ab2
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/332339
Reviewed-by: Raman Tenneti <rtenneti@google.com>
Reviewed-by: Mike Frysinger <vapier@google.com>
Tested-by: Josh Steadmon <steadmon@google.com>
2022-03-16 17:33:07 +00:00
LaMont Jones
b308db1e2a manifest_xml: group for submanifest projects
Add all projects in a submanifest to the group
submanifest::<path_prefix> for ease in filtering.

Change-Id: Ia6f01f9445f4f8d20fda3402f4d5821c43ceaf7f
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/331319
Tested-by: LaMont Jones <lamontjones@google.com>
Reviewed-by: Mike Frysinger <vapier@google.com>
2022-02-28 20:08:58 +00:00
LaMont Jones
cc879a97c3 Add multi-manifest support with <submanifest> element
To be addressed in another change:
 - a partial `repo sync` (with a list of projects/paths to sync)
   requires `--this-tree-only`.

Change-Id: I6c7400bf001540e9d7694fa70934f8f204cb5f57
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/322657
Tested-by: LaMont Jones <lamontjones@google.com>
Reviewed-by: Mike Frysinger <vapier@google.com>
2022-02-17 21:57:55 +00:00
LaMont Jones
87cce68b28 Move local-manifest check to manifest_xml.py
This removes the need for git_superproject to include manifest_xml, and
puts the logic for local_manifest detection in one place.

Change-Id: I4d33ded0542ceea4606a1ea24304f678de20c59e
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/330499
Tested-by: LaMont Jones <lamontjones@google.com>
Reviewed-by: Raman Tenneti <rtenneti@google.com>
2022-02-15 22:15:42 +00:00
LaMont Jones
adaa1d8734 project.py: pass --recurse-submodules={value}
If submodules is False, explicitly pass '=no'.  Uninitialized submodules
may cause the default option to fail.

Change-Id: Ia00bcba5b69c4b65195f4c469c686a3ef9a4a3ad
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/330159
Reviewed-by: Xin Li <delphij@google.com>
Tested-by: LaMont Jones <lamontjones@google.com>
2022-02-10 23:57:45 +00:00
Mike Frysinger
8e91248655 project: mark gc.log as safe to discard when migrating .git/
This is just a log file that, while useful for humans when gc aborts,
doesn't contain any data, so it's safe to throw away.

Bug: https://crbug.com/gerrit/15619
Change-Id: Ia95e0e281f52260668f7a80b5d5f990e32a8597a
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/328999
Tested-by: Mike Frysinger <vapier@google.com>
Reviewed-by: Peter Kjellerstedt <peter.kjellerstedt@axis.com>
Reviewed-by: Mike Frysinger <vapier@google.com>
2022-01-26 16:46:03 +00:00
XD Trol
630876f9e4 init: add an option --enable-git-lfs-filter
It was reported that git-lfs did not work with git-repo. Specifically,
`git read-tree -u` run by `repo sync` would fail git-lfs's smudge
filter. See https://github.com/github/git-lfs/issues/1422.

In fact, by the time `git read-tree -u` is run, the repository is not
bare. It is just that, the working directory is not the same as the
.git directory. git-lfs's filter should work. No one seems to have
delved into that issue.

Today, with newer versions of git-repo and git-lfs, that issue will
not reproduce. Tested with
- git 2.33, git-lfs 2.13 on macOS
- git 2.17, git-lfs 2.3 on ubuntu

So, it seems fine to add an option --enable-git-lfs-filter, default to
false, and stat that it may not work with older versions of git and
git-lfs in the help doc.

Bug: https://crbug.com/gerrit/14516
Change-Id: I8d21854eeeea541e072f63d6b10ad1253b1a9826
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/328359
Tested-by: XD Trol <milestonejxd@gmail.com>
Reviewed-by: Mike Frysinger <vapier@google.com>
2022-01-26 01:47:20 +00:00
Mike Frysinger
4aa8584ec6 init: make bad --repo-rev settings more clear
If the user passes a bad --repo-rev setting in a new checkout, add a
tip to the error message that their option is probably bad instead of
just saying "unable to resolve".

If the user has already initialized a checkout, we'd display a raw
traceback which would confuse them.  Swallow that and also include
the --repo-rev tip.

Bug: https://crbug.com/gerrit/15610
Change-Id: I5d72513c7b37bf9bb5d19862fcdfaf0d1f44e886
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/328820
Reviewed-by: Jack Neus <jackneus@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2022-01-25 18:54:42 +00:00
Peter Kjellerstedt
b550501254 project: Ignore failure to remove the sample hooks
Removing the sample hooks is just clean up, so if repo cannot remove a
sample hook that should not cause it to fail.

Change-Id: I716b977da091c22b8f53e134f4fbc114116f9a65
Signed-off-by: Peter Kjellerstedt <peter.kjellerstedt@axis.com>
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/328635
Reviewed-by: Mike Frysinger <vapier@google.com>
2022-01-22 06:13:10 +00:00
LaMont Jones
a535ae4418 branches: Fix "not in" handling
If the branch is current, or present in less than half of the projects,
list which projects it is *in*.

Otherwise, correctly detect which projects (by relpath) it is not in.

Previously, the "not in" path would incorrectly list all projects.

Change-Id: Ia153856f577035a51f538b7bf5d3135b70c69d52
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/328199
Tested-by: LaMont Jones <lamontjones@google.com>
Reviewed-by: Xin Li <delphij@google.com>
2022-01-21 17:20:21 +00:00
Mike Frysinger
67d6cdf2bc project: store objects in project-objects directly
In order to stop sharing objects/ directly between shared projects,
we have to fetch the remote objects into project-objects/ manually.
So instead of running git operations in the individual project dirs
and relying on .git/objects being symlinked to project-objects/,
tell git to store any objects it fetches in project-objects/.

We do this by leveraging the GIT_OBJECT_DIRECTORY override.  This
has been in git forever, or at least since v1.7.2 which is what we
already hard require.  This tells git to save new objects to the
specified path no matter where it's being run otherwise.

We still otherwise run git in the project-specific dir so that it
can find the right set of refs that it wants to compare against,
including local refs.  For that reason, we also have to leverage
GIT_ALTERNATE_OBJECT_DIRECTORIES to tell git where to find objects
that are not in the upstream remote.  This way git doesn't blow up
when it can't find objects only associated with local commits.

As it stands right now, the practical result is the same: since we
symlink the project objects/ dir to the project-objects/ tree, the
default objects dir, the one we set $GIT_OBJECT_DIRECTORY to, and
the one we set $GIT_ALTERNATE_OBJECT_DIRECTORIES to are actually
all the same.  So this commit by itself should be safe.  But in a
follow up commit, we can replace the symlink with a separate dir
and git will keep working.

Bug: https://crbug.com/gerrit/15553
Change-Id: Ie4e654aec3e1ee307eee925a54908a2db6a5869f
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/328100
Reviewed-by: Jack Neus <jackneus@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2022-01-19 17:24:51 +00:00
Mike Frysinger
152032cca2 project: move --reference handling to project-objects
When using --reference, the path is written to objects/info/alternates.
The path is accessed inconsistently -- sometimes through projects/ (via
self.gitdir) and sometimes through project-objects/ (via self.objdir).
This works because projects/.../objects is a symlink to the objects dir
under project-objects/.  Change all accesses to go through self.objdir.
This will allow us to stop symlinking projects/.../objects without the
reference dir logic breaking.  The projects/ path is going to use its
alternates file for its own needs.

Bug: https://crbug.com/gerrit/15553
Change-Id: I6b452ad1aaffec74ecb7ac1bb9baa3a3a52e076c
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/328099
Tested-by: Mike Frysinger <vapier@google.com>
Reviewed-by: Jack Neus <jackneus@google.com>
2022-01-13 18:27:28 +00:00
Sebastian Wagner
a3ac816278 test_project: use os.readlink instead of Path.readlink
Path.readlink is only available on Python 3.9, breaking compatibility
with all python versions below. os.readlink is already used in other
places of this file, so use it here as well.

Change-Id: I5acf8f5334a3e7c8de9cea1939d7e2b9af5f30ae
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/327844
Reviewed-by: Mike Frysinger <vapier@google.com>
Tested-by: Sebastian Wagner <sebix@sebix.at>
2022-01-11 20:16:42 +00:00
Mike Frysinger
98bb76577d project: prune sample hooks
These hooks are never used and often get stale, so just trim them.
Users rarely look in these dirs to begin with.

Change-Id: Ic785aa55fb7ec84a61376df101127d0018882030
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/327538
Reviewed-by: Jack Neus <jackneus@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2022-01-10 17:41:45 +00:00
Mike Frysinger
d33dce0b77 project: drop support for symlinking internal .git files
Since we don't do this anymore, and there prob won't be a need to
bring it back, drop support for it.

Bug: https://crbug.com/gerrit/15460
Change-Id: I7d86706f108c797a5c7962cb1578693d49430367
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/327537
Reviewed-by: Jack Neus <jackneus@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2022-01-10 17:41:40 +00:00
Mike Frysinger
89ed8acdbe project: abort a bit earlier before migrating .git/
Verify all the .git/ paths will be handled by the migration logic before
starting the migration.  This way we still abort & log an error, but the
user gets to see it before we put the tree into a state that they have to
manually recover.  Also add a few more known-safe-to-clobber paths.

Bug: https://crbug.com/gerrit/15273
Change-Id: If49d69b341bc960ddcafa30da333fb5ec7145b51
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/327557
Reviewed-by: Colin Cross <ccross@android.com>
Tested-by: Mike Frysinger <vapier@google.com>
2022-01-07 20:17:14 +00:00
Raman Tenneti
71e48b7672 Revert "sync: dropped "NOTICE: --use-superproject is in beta ..." message."
This reverts commit d53cb9549a. As long as
repo's reference docs treat this feature as a work in progress and don't
cover it well enough to allow all repo maintainers to easily support it,
it is inconsistent to report to users that it is no longer in beta.
Thanks for vapier@google.com for noticing.

https://crbug.com/gerrit/15527 tracks the required documentation changes
before we'd be ready to roll forward again.

Change-Id: Ic9bd951cfb3c1abf6e1bfa30dfe4afa1c9b7bec6
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/327337
Reviewed-by: Jonathan Nieder <jrn@google.com>
Reviewed-by: Mike Frysinger <vapier@google.com>
Tested-by: Jonathan Nieder <jrn@google.com>
2022-01-06 20:01:03 +00:00
Mike Frysinger
13576a8caf project: stop symlinking info dir under .git/
Unsharing this directory shouldn't be a problem.  The current repo code
treated it as a file, and while that's actually incorrect, files & dirs
are basically treated the same, so it's practically the same.

Let's enumerate each subpath since there aren't that many.

info/refs:
Only used when the project is exported over git dumb transports (i.e.
a http:// server).  Repo never does this, and it's extremely unlikely
any user has ever done this.  Plus, this proposal talks about unsharing
project refs, so this file should get unshared too.

info/grafts:
A user-configurable file that repo never touches.  Might be useful to
share across projects, but probably rarely (if ever) used by developers,
and forcing them to configure it for each project isn't that big of a
deal.

info/exclude:
info/attributes:
User-configurable files that repo never touches.  Doesn't seem like
most users ever touch these, and if they do, having them do it for
each shared project isn't a big deal.

info/sparse-checkout:
Repo doesn't use sparse checkouts, and it's extremely unlikely to even
work if a user tried doing something themselves.

Bug: https://crbug.com/gerrit/15460
Change-Id: I53e44d73a6d7a92da615b46600d8ea51cb46e3ac
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/327519
Reviewed-by: Jonathan Nieder <jrn@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2022-01-06 08:31:45 +00:00
Mike Frysinger
2345906d04 project: stop symlinking description file under .git/
Nothing uses this path.  It’s only for exporting git dirs e.g. for
online gitweb use which probably no one does.  It is not the same
description file as exists on servers we cloned from.  Leaving it
as the default plain text file will simplify code.

We don't undo any existing symlinks if they exist since repo does
not care about them, and their existence doesn't hurt.

Bug: https://crbug.com/gerrit/15460
Change-Id: Ic34fe7c3cfb8f6da844de5be30158f59382b1cc8
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/327518
Reviewed-by: Jonathan Nieder <jrn@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2022-01-06 08:29:06 +00:00
Mike Frysinger
41289c62b4 project: stop symlinking svn under .git/
This path only matters to users of `git svn` who manually run it in
local projects after they get a full repo client checkout.  With svn
usage falling in general, and with the fact that the source checkout
now symlinks its .git/ state to the internal projects/ path, we don't
need to manage this anymore.

It means the path won't be shared among multiple local projects that
have the same remote, but so it goes.  It was an optimization only,
not functionality required for correctness.  We want to simplify the
internals to stop messing with git state, and this particular path
doesn't seem worth the effort to maintain.

We don't undo any existing svn symlinks if they exist since repo does
not care about them, and their existence doesn't hurt anything.

Bug: https://crbug.com/gerrit/15460
Change-Id: Ie8496b275bcc589771aa9f4ee874ed2ee6d5241d
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/327517
Reviewed-by: Jonathan Nieder <jrn@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2022-01-06 08:28:37 +00:00
Mike Frysinger
c72bd8486a project: clean up now unused code
Now that we symlink worktree .git/ paths to .repo/projects/, we never
set share_refs=True anywhere, which means all of this logic is dead
code.  Throw it all away.  Do it as a separate commit to make the
parent commit easier to review.

Bug: https://crbug.com/gerrit/15273
Change-Id: If496d39029d3d3bd523ba24c603ce47a63ad9b51
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/326817
Tested-by: Mike Frysinger <vapier@google.com>
Reviewed-by: Jack Neus <jackneus@google.com>
2022-01-06 04:08:05 +00:00
Raman Tenneti
d53cb9549a sync: dropped "NOTICE: --use-superproject is in beta ..." message.
Tested the code with the following commands.

$ ./run_tests -v

Bug: [google internal] b/209511230
Change-Id: Ia3c6de47709f5276e324a5bb608383aba3b2c562
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/327197
Reviewed-by: Xin Li <delphij@google.com>
Tested-by: Raman Tenneti <rtenneti@google.com>
2021-12-29 19:07:08 +00:00
Raman Tenneti
cf0ba48649 sync: With --mirror option, don't display no-use-superproject... message.
+ Display 'Defaulting to no-use-superproject because there is no working tree.'
  message if --use-superproject option is used and we are not using
  superproject because manifest is either a mirror or is an archive.

Tested the code with the following commands.

$ ./run_tests -v

Tested the sync code by using repo_dev alias and pointing to this CL.

$ repo init -u https://android.googlesource.com/mirror/manifest --mirror

$ repo_dev sync
Receiving objects: 100% (3/3), done.eiving objects:  33% (1/3)

$ repo_dev sync --use-superproject
Defaulting to no-use-superproject because there is no working tree.
Fetching:  0% (0/2158) warming up

Bug: https://crbug.com/gerrit/15368
Change-Id: I16b87ee9623315dbc3100b612b1decdaab7ac1dc
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/325797
Reviewed-by: Mike Frysinger <vapier@google.com>
Tested-by: Raman Tenneti <rtenneti@google.com>
2021-12-07 16:46:41 +00:00
Mike Frysinger
2a089cfee4 project: migrate worktree .git/ dirs to symlinks
Historically we created a .git/ subdir in each source checkout and
symlinked individual files to the .repo/projects/ paths.  This layer
of indirection isn't actually needed: the .repo/projects/ paths are
guaranteed to only ever have a 1-to-1 mapping with the actual git
checkout.  So we don't need to worry about having files in .git/ be
isolated.

To that end, change how we manage the actual project checkouts from
a dir full of symlinks (and a few files) to a symlink to the internal
.repo/projects/ dir.  This makes the code simpler & faster.

The directory structure we have today is:
.repo/
  project-objects/chromiumos/third_party/kernel.git/
    <paths omitted as not relevant to this change>
  projects/src/third_party/kernel/
    v3.8.git/
      config
      description   -> …/project-objects/…/config
      FETCH_HEAD
      HEAD
      hooks/        -> …/project-objects/…/hooks/
      info/         -> …/project-objects/…/info/
      logs/
      objects/      -> …/project-objects/…/objects/
      packed-refs
      refs/
      rr-cache/     -> …/project-objects/…/rr-cache/
src/third_party/kernel/
  v3.8/
    .git/
      config        -> …/projects/…/v3.8.git/config
      description   -> …/project-objects/…/v3.8.git/description
      HEAD
      hooks/        -> …/project-objects/…/v3.8.git/hooks/
      index
      info/         -> …/project-objects/…/v3.8.git/info/
      logs/         -> …/projects/…/v3.8.git/logs/
      objects/      -> …/project-objects/…/v3.8.git/objects/
      packed-refs   -> …/projects/…/v3.8.git/packed-refs
      refs/         -> …/projects/…/v3.8.git/refs/
      rr-cache/     -> …/project-objects/…/v3.8.git/rr-cache/

The directory structure we have after this commit:
.repo/
  <nothing changes>
src/third_party/kernel/
  v3.8/
    .git            -> …/projects/…/v3.8.git

Bug: https://crbug.com/gerrit/15273
Change-Id: I9dd8def23fbfb2f4cb209a93f8b1b2b24002a444
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/323695
Reviewed-by: Mike Nichols <mikenichols@google.com>
Reviewed-by: Xin Li <delphij@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2021-12-01 15:27:16 +00:00
Raman Tenneti
4a478edb44 init, sync: fixed flake8 warnings.
Tested:
+ run_tests
+ flake8 subcmds/init.py
+ flake8 subcmds/sync.py

Change-Id: Ie337481d8a210bfc49b0745f75c05a308a0e74d3
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/324155
Reviewed-by: Mike Frysinger <vapier@google.com>
Tested-by: Raman Tenneti <rtenneti@google.com>
2021-11-18 16:22:40 +00:00