Commit Graph

1906 Commits

Author SHA1 Message Date
Mike Frysinger
5a4c8fde17 init: expose --worktree option
There's a few rough edges here still, but no known corruption ones,
so open it up a bit for people to experiment with.

Bug: https://crbug.com/gerrit/11486
Change-Id: I81e0122ab6d3e032c546c8239dd4f03740676e80
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/299242
Reviewed-by: Michael Mortensen <mmortensen@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2021-03-09 16:59:59 +00:00
Ian Kasprzak
835a34bdb9 Log repo.* config variables in git trace2 logger.
Bug: [google internal] b/181758736
Testing:
- Unit tests
- Verified repo git trace2 logs had expected data

Change-Id: I9af8a574377bd91115f085808c1271e9dee16a36
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/299182
Tested-by: Ian Kasprzak <iankaz@google.com>
Reviewed-by: Mike Frysinger <vapier@google.com>
Reviewed-by: Raman Tenneti <rtenneti@google.com>
2021-03-08 17:32:09 +00:00
Raman Tenneti
ef99ec07b4 superproject: Display status messages during repo init/sync.
Superproject objects accept the optional argument “quiet”.
The following progress messages are displayed if quiet is false.

Displayed the following message whenever we find we have to make a new
folder (aka new remote), because if you started with repo init android
and later do googleplex-android that is when it will be slow.

"<location>: Performing initial setup for superproject; this might take
several minutes.".

After fetch completion, added the following notification:
"<location>: Initial setup for superproject completed."

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_dev init -u persistent-https://googleplex-android.git.corp.google.com/platform/manifest -b rvc-dev  --partial-clone --clone-filter=blob:limit=10M --repo-rev=main  --use-superproject

Bug: [google internal] b/181178282
Bug: https://crbug.com/gerrit/13707
Change-Id: Ia7fb85c6fb934faaa90c48fc0c55e7f41055f48a
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/299122
Reviewed-by: Mike Frysinger <vapier@google.com>
Tested-by: Raman Tenneti <rtenneti@google.com>
2021-03-04 20:07:52 +00:00
Mike Frysinger
934cb0a849 tests: fix duplicate method from copy & paste error
Change-Id: Ib748c61b1e65aee6dff8b97a9753d14c470a827f
Reported-by: Daniel Kutik <daniel.kutik@lavawerk.com>
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/299002
Reviewed-by: Daniel Kutik <daniel.kutik@lavawerk.com>
Reviewed-by: Ian Kasprzak <iankaz@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2021-03-04 16:17:11 +00:00
Mike Frysinger
3c0931285c project: fix variable typo
Bug: https://crbug.com/gerrit/11293
Reported-by: Daniel Kutik <daniel.kutik@lavawerk.com>
Change-Id: I37bac58aa1dc9ecc10e29253d14ff9e6fb42427c
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/298942
Reviewed-by: Ian Kasprzak <iankaz@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2021-03-03 16:45:21 +00:00
Mike Frysinger
5413397204 manifest: relax include name rules for user-specified path
Allow the user to specify relative or absolute or any other funky
path that they want when using `repo init` or `repo sync`.  Our
goal is to restrict the paths in the remote manifest git repo we
cloned from the network, not protect the user from themselves.

Bug: https://crbug.com/gerrit/14156
Change-Id: I1ccfb2a6bd1dce2bd765e261bef0bbf0f8a9beb6
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/298823
Reviewed-by: Jonathan Nieder <jrn@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2021-03-02 03:18:57 +00:00
Mike Frysinger
13cb7f799d forall: greatly speed up processing overhead
With the recent commit 0501b29e7a
("status: Use multiprocessing for `repo status -j<num>` instead of
threading"), the limitation with project serialization no longer
applies.  It turns out that ad-hoc logic is expensive.  In the CrOS
checkout (~1000 projects w/8 jobs by default), it adds about ~7sec
overhead to all invocations.  With a fast nop run:
	time repo forall -j8 -c true
This goes from ~11sec to ~4sec -- more than 50% speedup.

Change-Id: Ie6bcccd21eef20440692751b7ebd36c890d5bbcc
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/298724
Reviewed-by: Michael Mortensen <mmortensen@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2021-03-01 15:58:06 +00:00
Mike Frysinger
819c73954f forall: simplify arg passing to worker children
The ProjectArgs function can be inlined which simplifies it quite a
bit.  We shouldn't need the custom exception handling here either.
This also makes the next commit easier to review.

Change-Id: If3be04f58c302c36a0f20b99de0f67e78beac141
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/298723
Reviewed-by: Michael Mortensen <mmortensen@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2021-03-01 15:58:06 +00:00
Mike Frysinger
179a242caa forall: move nested func out to the class
This is in preparation for simplifying the jobs support.  The nested
function is referenced in the options object which can't be pickled,
so pull it out into a static method instead.

Change-Id: I01d3c4eaabcb8b8775ddf22312a6e142c84cb77d
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/298722
Reviewed-by: Michael Mortensen <mmortensen@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2021-03-01 15:57:32 +00:00
Mike Frysinger
31fabeed54 download: handle shared projects a bit better
If a manifest checksout a project multiple times, repo download isn't
able to accurately pick the right project.  We were just picking the
first result which could be a bit random for the user.  If we hit that
situation, check if the cwd is one of the projects, and if it isn't,
we emit an error and tell the user it's an ambiguous request.

Bug: https://crbug.com/gerrit/13070
Change-Id: Id1059b81330229126b48c7312569b37504808383
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/298702
Reviewed-by: Michael Mortensen <mmortensen@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2021-03-01 15:57:17 +00:00
Mike Frysinger
76844ba292 project: skip clone bundles when we've already initialized the object dir
The clone bundle logic assumes there is a one-to-one mapping between the
projects/ and project-objects/ trees.  When using shared projects (where
we checkout different branches from the same project), this would lead us
to fetching the same clone bundle multiple times.  Automatically skip the
clone bundle logic if the project-objects/ dir already exists.

Bug: https://crbug.com/gerrit/10993
Change-Id: I82c6fa1faf8605fd56c104fcea2a43dd4eecbce4
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/298682
Reviewed-by: Michael Mortensen <mmortensen@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2021-03-01 15:57:12 +00:00
Mike Frysinger
6d1faa1db3 git_refs: fix crash with binary . files in .git/refs/
On macOS, the Finder app likes to poop .DS_Store files in every path
that the user browses.  If the user pokes around the .git/ tree, it
could generate a .DS_Store file in there too.  When repo goes to read
all the local refs, it tries to decode this binary file as UTF-8 and
subsequently crashes.

Since paths that begin with . are not valid refs, ignore them like we
already do with paths that end in .lock.  Also bump the check up to
ignore dirs that match since that follows the git rules: they apply
to any component in its path, not just the final path (name).

We don't implement the full valid ref algorithm that git employs as
it's a bit complicated, and we only really need to focus on what will
practically show up locally.

Bug: https://crbug.com/gerrit/14162
Change-Id: I6519f990e33cc58a72fcb00c0f983ad3285ace3d
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/298662
Tested-by: Mike Frysinger <vapier@google.com>
Reviewed-by: Michael Mortensen <mmortensen@google.com>
2021-02-28 16:07:24 +00:00
Mike Frysinger
4510be51c1 git_command: pass GIT_DIR on Windows with /
When using Git under Windows, it seems that Git doesn't always parse
GIT_DIR correctly when it uses the Windows \ form, but does when it
uses / only.

For example, when using worktrees:
$ GIT_DIR='C:\Users\vapier\Desktop\repo\breakpad\tools\test\.git' git worktree list
fatal: not a git repository: ..\..\.repo\worktrees\linux-syscall-support.git\worktrees\test
$ GIT_DIR='C:/Users/vapier/Desktop/repo/breakpad/tools/test/.git' git worktree list
C:/Users/vapier/Desktop/repo/breakpad/.repo/worktrees/linux-syscall-support.git  fd00dbbd0c06 (detached HEAD)
..\..\..\..\..\src\src\third_party\lss\.git                                      fd00dbbd0c06 (detached HEAD)
..\..\..\..\..\tools\test\.git                                                   fd00dbbd0c06 (detached HEAD)

Change-Id: I666c03ae845ecb55d7f9800731ea6987d3e7f401
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/298622
Reviewed-by: Michael Mortensen <mmortensen@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2021-02-28 16:07:20 +00:00
Mike Frysinger
a29424ea6d manifest: validate project name & path and include name attributes
These attribute values are used to construct local filesystem paths,
so apply the existing filesystem checks to them.

Bug: https://crbug.com/gerrit/14156
Change-Id: Ibcceecd60fa74f0eb97cd9ed1a9792e139534ed4
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/298443
Reviewed-by: Michael Mortensen <mmortensen@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2021-02-28 16:07:12 +00:00
Mike Frysinger
a00c5f40e7 manifest: refactor the filesystem checking logic for more reuse
This function is currently written with copyfile & linkfile in mind.
Generalize the logic & function arguments slightly so we can reuse
in more places that make sense.

This changes the validation logic slightly too in that we no longer
allow "." for the dest attribute with copyfile & linkfile, nor for
the src attribute with copyfile.  We already rejected those later on
when checking against the active filesystem, but now we reject them
a little sooner when parsing.

The empty path check isn't a new requirement exactly -- repo used to
crash on it, so it was effectively blocked, but now we diagnosis it.

Bug: https://crbug.com/gerrit/14156
Change-Id: I0fdb42a3da60ed149ff1997c5dd4b85da70eec3d
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/298442
Reviewed-by: Michael Mortensen <mmortensen@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2021-02-28 16:07:12 +00:00
Mike Frysinger
6093d99d13 checkout: add --jobs support
Use multiprocessing to run in parallel.  When operating on multiple
projects, this can speed things up.  Across 1000 repos, it goes from
~9sec to ~5sec with the default -j8.

Change-Id: Ida6dd565db78ff7bac0ecb25d2805e8a1bf78048
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/297982
Reviewed-by: Chris Mcdonald <cjmcdonald@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2021-02-27 19:56:24 +00:00
Mike Frysinger
ebf04a4404 sync: switch local checkout to multiprocessing
This avoids GIL limitations with using threads for parallel processing.
In a CrOS checkout with ~1000 repos, the nop case goes from ~6 sec down
to ~4 sec with -j8.  Not a big deal, but shows that this actually works
to speed things up unlike the threading model.

This reworks the checkout logic to return results for processing in the
main thread instead of leaving every thread to do its own processing.

Bug: https://crbug.com/gerrit/12389
Change-Id: I143e5e3f7158e83ea67e2d14e5552153a874248a
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/298063
Reviewed-by: Chris Mcdonald <cjmcdonald@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2021-02-27 19:55:14 +00:00
Mike Frysinger
8dbc07aced abandon/start: add --jobs support
Use multiprocessing to run in parallel.  When operating on multiple
projects, this can greatly speed things up.  Across 1000 repos, it
goes from ~30sec to ~3sec with the default -j8.

Change-Id: I0dc62d704c022dd02cac0bd67fe79224f4e34095
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/297484
Tested-by: Mike Frysinger <vapier@google.com>
Reviewed-by: Chris Mcdonald <cjmcdonald@google.com>
2021-02-27 19:45:14 +00:00
Mike Frysinger
8d2a6df1fd progress: include execution time summary
We're already keeping tracking of the start time, so might as
well use it to display overall execution time for steps.

Change-Id: Ib4cf8b2b0dfcdf7b776a84295d59cc569971bdf5
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/298482
Reviewed-by: Michael Mortensen <mmortensen@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2021-02-26 17:16:29 +00:00
Raman Tenneti
ceba2ddc13 sync: superproject - support for switching hosts and switching branches.
+ superproject will be fetched into a directory with the name
  “<remote name>-superproject.git” instead of the current
  “superproject.git” folder.

+ Deleted  _Clone method and added _Init method.

+ _Init method will do “git init --bare <remote>-superproject.git”.
  It will create the folder and set up a bare repository in
  <remote>-superproject.git folder.

+ _Fetch method, will pass <remote url>, <branch> arguments.
  Moved the --filter argument from “git clone” to “git fetch”.
  _Fetch method will execute the following command to fetch
  superproject. Added --no-tags argument.

  master:  git fetch <remote url> --force --no-tags --filter blob:none
  branch:  git fetch <remote url> --force --no-tags --filter blob:none \
           <branch>:<branch>

+ Performance improvements for aosp-master
  ++ repo init performance improved from 35 seconds to 17 seconds.
  ++ repo init --use-superproject is around 5 to 7 secsonds slower.
  ++ repo sync --use-superproject is around 3 to 4 minutes faster.

Tested the code with the following commands.

$ ./run_tests -v

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

$ time repo_dev init -u sso://android.git.corp.google.com/platform/manifest -b master --partial-clone --clone-filter=blob:limit=10M --repo-rev=main --use-superproject
...
  real	0m20.648s
  user	0m8.046s
  sys	0m3.271s

+ Without superproject
$ time repo init -u sso://android.git.corp.google.com/platform/manifest -b master --partial-clone --clone-filter=blob:limit=10M --repo-rev=main
  real	0m13.078s
  user	0m9.783s
  sys	0m2.528s

$ time repo_dev sync -c -j32 --use-superproject
...
  real	15m7.072s
  user	110m7.216s
  sys	20m17.559s

+ Without superproject
$ time repo sync -c -j32
...
  real	19m25.644s
  user	91m56.331s
  sys	20m59.170s

Bug: [google internal] b/180492484
Bug: [google internal] b/179470886
Bug: [google internal] b/180124069
Bug: https://crbug.com/gerrit/13709
Bug: https://crbug.com/gerrit/13707

Change-Id: Ib04bd7f1e25ceb75532643e58ad0129300ba3299
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/297702
Reviewed-by: Mike Frysinger <vapier@google.com>
Tested-by: Raman Tenneti <rtenneti@google.com>
2021-02-25 20:45:26 +00:00
Mike Frysinger
45ad1541c5 grep: move nested func out to the class
This is in preparation for adding jobs support.  The nested function
is referenced in the options object which can't be pickled, so pull
it out into a static method instead.

Change-Id: I280ed2bf26390a0203925517a0d17c13053becaa
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/297983
Reviewed-by: Michael Mortensen <mmortensen@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2021-02-25 20:13:33 +00:00
Mike Frysinger
7b586f231b sync: capture all git output by default
The default sync output should show a progress bar only for successful
commands, and the error output for any commands that fail.  Implement
that policy here.

Bug: https://crbug.com/gerrit/11293
Change-Id: I85716032201b6e2b45df876b07dd79cb2c1447a5
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/297905
Reviewed-by: Michael Mortensen <mmortensen@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2021-02-25 20:13:18 +00:00
Mike Frysinger
fbb95a4342 progress/sync: include active number of jobs
Provide a bit more info to users that things are actively running.

Bug: https://crbug.com/gerrit/11293
Change-Id: Ie8eeaa8804d1ca71cf5c78ad850fa2d17d26208c
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/297904
Reviewed-by: Michael Mortensen <mmortensen@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2021-02-25 20:13:18 +00:00
Mike Frysinger
4e05f650e0 progress: always enable always_print_percentage
The idea for skipping some progress updates was to avoid spending
too much time on the progress bar itself.  Unfortunately, for large
projects (100s if not 1000s) of repos, we get into the situation
with large/slow checkouts that we skip showing updates when a repo
finishes, but not enough repos finished to increase the percent.

Since the progress bar should be relatively fast compared to the
actual network & local dick operations, have it show an update
whenever the caller requests it.  A test with ~1000 repos shows
that the progress bar in total adds <100ms.

Bug: https://crbug.com/gerrit/11293
Change-Id: I708a0c4bd923c59c7691a5b48ae33eb6fca4cd14
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/297903
Reviewed-by: Michael Mortensen <mmortensen@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2021-02-25 20:13:18 +00:00
Mike Frysinger
23882b33fe init: support -b HEAD as a shortcut to "the default"
When people switch to non-default branches, they sometimes want to
switch back to the default, but don't know the exact name for that
branch.  Add a -b HEAD shortcut for that.

Change-Id: I090230da25f9f5a169608115d483f660f555624f
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/297843
Reviewed-by: Michael Mortensen <mmortensen@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2021-02-25 20:12:51 +00:00
Mike Frysinger
92304bff00 project: fix http error retry logic
When sync moved to consume clone output, it merged stdout & stderr,
but the retry logic in this function is based on stderr only.  Move
it over to checking stdout.

Change-Id: I71bdc18ed25c978055952721e3a768289d7a3bd2
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/297902
Reviewed-by: Michael Mortensen <mmortensen@google.com>
Reviewed-by: Raman Tenneti <rtenneti@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2021-02-25 20:12:42 +00:00
Mike Frysinger
adbd01e0d3 tests: fix init subcmd after url change
My recent 401c6f0725 ("init: make
--manifest-url flag optional") commit broke the unittest.

Change-Id: I19ad0e8c8cbb84ab5474ebc370e00acfe957e136
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/298223
Reviewed-by: Raman Tenneti <rtenneti@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2021-02-25 17:07:11 +00:00
Mike Frysinger
37ac3d626f tests: refactor manifest tests
The XmlManifestTests class is getting to be large and we're only
adding more to it.  Factor out the core logic into a new TestCase
so we can reuse it to better group more tests.

Change-Id: I5113444a4649a70ecfa8d83d3305959a953693f7
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/298222
Reviewed-by: Raman Tenneti <rtenneti@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2021-02-25 17:06:56 +00:00
Raman Tenneti
55d6a5a3a2 sync: use superproject if manifest's config has superproject enabled.
If --use-superproject is passed as argument to "repo init", then
--use-superproject need not be specified during "repo sync".

Tested the code with the following commands.

$ time repo_dev sync -c -j32
...
WARNING: --use-superproject is experimental and not for general use

Bug: https://crbug.com/gerrit/13709
Bug: https://crbug.com/gerrit/13707
Change-Id: Ibb33f3038a2515f74a6c4f7cb785d354b26ee680
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/298102
Tested-by: Raman Tenneti <rtenneti@google.com>
Reviewed-by: Mike Frysinger <vapier@google.com>
Reviewed-by: Ian Kasprzak <iankaz@google.com>
2021-02-25 16:35:53 +00:00
Mike Frysinger
6db4097f31 docs: add warnings about repos data model
For people coming across these docs and thinking that repo's methods
are good to replicate, add a note warning them against doing so.

Change-Id: I443a783794313851a6e7ba1c39baebac988bff9a
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/298164
Reviewed-by: Michael Mortensen <mmortensen@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2021-02-25 15:48:03 +00:00
Mike Frysinger
f0925c482f platform_utils: delete unused FileDescriptorStreams APIs
Now that we've converted the few users of this over to subprocess APIs,
we don't need this anymore.  It's been a bit hairy to maintain across
different operating systems, so there's no desire to bring it back.

Using multiprocessing Pool to batch things has been working better in
general anyways.

Change-Id: I10769e96f60ecf27a80d8cc2aa0d1b199085252e
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/297682
Reviewed-by: Michael Mortensen <mmortensen@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2021-02-24 01:45:57 +00:00
Mike Frysinger
be24a54d9c sync: update event is_set API
Python 3 renamed this method from isSet to is_set.

Change-Id: I8f9bb0b302d55873bed3cb20f2d994fa2d082157
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/297742
Reviewed-by: Michael Mortensen <mmortensen@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2021-02-23 17:56:49 +00:00
Mike Frysinger
c87c1863b1 git_command: switch process capturing over to subprocess
Now that these code paths are all synchronous, there's no need to run
our own poll loop to read & pass thru/save output.  Delete all of that
and just let the subprocess module take care of it all.

Change-Id: Ic27fe71b6f964905cf280ce2b183bb7ee46f4a0d
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/297422
Reviewed-by: Michael Mortensen <mmortensen@google.com>
Reviewed-by: Jonathan Nieder <jrn@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2021-02-23 00:36:51 +00:00
Mike Frysinger
69b4a9cf21 diff: add --jobs support
Use multiprocessing to run diff in parallel.

Change-Id: I61e973d9c2cde039d5eebe8d0fe8bb63171ef447
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/297483
Tested-by: Mike Frysinger <vapier@google.com>
Reviewed-by: Chris Mcdonald <cjmcdonald@google.com>
2021-02-23 00:31:27 +00:00
Mike Frysinger
fbab6065d4 forall: rewrite parallel logic
This fixes intermingling of parallel jobs and simplifies the code
by switching to subprocess.run.  This also provides stable output
in the order of projects by returning the output as a string that
the main loop outputs.

This drops support for interactive commands, but it's unclear if
anyone was relying on that, and the default behavior (-j2) made
that unreliable.  If it turns out someone still wants this, we can
look at readding it.

Change-Id: I7555b4e7a15aad336667292614f730fb7a90bd26
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/297482
Reviewed-by: Chris Mcdonald <cjmcdonald@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2021-02-22 22:58:30 +00:00
Mike Frysinger
15e807cf3c forall: improve pool logic
Use a pool contextmanager to take care of the messy details like
properly cleaning it up when aborting.

Change-Id: I264ebb591c2e67c9a975b6dcc0f14b29cc66a874
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/297243
Reviewed-by: Chris Mcdonald <cjmcdonald@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2021-02-22 22:51:46 +00:00
Mike Frysinger
7c871163c8 status: improve parallel execution stability
The status command runs a bunch of jobs in parallel, and each one
is responsible for writing to stdout directly.  When running many
noisy jobs in parallel, output can get intermingled.  Pass down a
StringIO buffer for writing to so we can return the entire output
as a string so the main job can handle displaying it.  This fixes
interleaved output as well as making the output stable: we always
display results in the same project order now.  By switching from
map to imap, this ends up not really adding any overhead.

Bug: https://crbug.com/gerrit/12231
Change-Id: Ic18b07c8074c046ff36e306eb8d392fb34fb6eca
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/297242
Tested-by: Mike Frysinger <vapier@google.com>
Reviewed-by: Chris Mcdonald <cjmcdonald@google.com>
2021-02-22 22:51:34 +00:00
Mike Frysinger
6a2400a4d0 command: unify --job option & default values
Extend the Command class to support adding the --jobs option to the
parser if the command declares it supports running in parallel.  Also
pull the default value used for the number of local jobs into the
command module so local commands can share it.

Change-Id: I22b0f8d2cf69875013cec657b8e6c4385549ccac
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/297024
Tested-by: Mike Frysinger <vapier@google.com>
Reviewed-by: Chris Mcdonald <cjmcdonald@google.com>
2021-02-22 22:51:07 +00:00
Mike Frysinger
c5bbea8db3 git_command: make execution synchronous
Every use of GitCommand in the tree just calls Wait as soon as it's
instantiated.  Move the bulk of the logic into the init path to make
the call synchronous to simplify.  We'll cleanup the users of the
Wait API to follup commits -- having this split makes it easier to
track down regressions.

Change-Id: I1e8c519efa912da723749ff7663558c04c1f491c
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/297244
Reviewed-by: Jonathan Nieder <jrn@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2021-02-20 08:41:10 +00:00
Mike Frysinger
5d9c4972e0 use simpler super() magic
Python 3 has a simpler super() style so switch to it to make the
code a little simpler and to stop pylint warnings.

Change-Id: I1b3ccf57ae968d56a9a0bcfc1258fbd8bfa3afee
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/297383
Reviewed-by: Michael Mortensen <mmortensen@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2021-02-19 20:06:20 +00:00
Mike Frysinger
057905fa1d error: fix pickling of all exceptions
Make sure all our custom exceptions can be pickled so that if they
get thrown in a multiprocess subprocess, we don't crash & hang due
to multiprocessing being unable to pickle+unpickle the exception.

Details/examples can be seen in Python reports like:
https://bugs.python.org/issue13751

Change-Id: Iddf14d3952ad4e2867cfc71891d6b6559130df4b
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/297382
Reviewed-by: Michael Mortensen <mmortensen@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2021-02-19 20:06:03 +00:00
Mike Frysinger
401c6f0725 init: make --manifest-url flag optional
Since the --manifest-url flag is always required when creating a new
checkout, allow the url to be specified via a positional argument.
This brings it a little closer to the `git clone` UI.

Change-Id: Iaf18e794ae2fa38b20579243d067205cae5fae2f
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/297322
Tested-by: Mike Frysinger <vapier@google.com>
Reviewed-by: Jonathan Nieder <jrn@google.com>
2021-02-18 20:38:47 +00:00
Mike Frysinger
8c1e9e62a3 gitc_utils: rewrite to use multiprocessing
This is the only code in the tree that uses GitCommand asynchronously.
Rewrite it to use multiprocessing.Pool as it makes the code a little
bit easier to understand and simpler.

Change-Id: I3ed3b037f24aa1e9dfe8eec9ec21815cdda7678a
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/297143
Tested-by: Mike Frysinger <vapier@google.com>
Reviewed-by: Michael Mortensen <mmortensen@google.com>
2021-02-18 07:11:07 +00:00
Mike Frysinger
84230009ee project: make diff tools synchronous
These are the only users in the tree that process the output as it's
produced.  All others capture all the output first and then process
the results.  However, these functions still don't fully return until
it's finished processing, and these funcs are in turn used in other
synchronous code paths.  So it's unclear whether anyone will notice
that it's slightly slower or less interactive.  Let's try it out and
see if users report issues.

This will allow us to simplify our custom GitCommand code and move it
over to Python's subprocess.run, and will help fix interleaved output
when running multiple commands in parallel (e.g. `repo diff -j8`).

Change-Id: Ida16fafc47119d30a629a8783babeba890515de0
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/297144
Tested-by: Mike Frysinger <vapier@google.com>
Reviewed-by: Jonathan Nieder <jrn@google.com>
2021-02-18 03:54:30 +00:00
Mike Frysinger
f37b9827a9 git_command: rework stdin handling
We only provide input to GitCommand in one place, so inline the logic
to be more synchronous and similar to subprocess.run.  This makes the
code simpler and easier to understand.

Change-Id: Ibe498fedf608774bae1f807fc301eb67841c468b
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/297142
Reviewed-by: Michael Mortensen <mmortensen@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2021-02-17 15:15:16 +00:00
Mike Frysinger
c47a235bc5 trim redundant pass statements
Clean up a few linter warnings.

Change-Id: I531d0263a202435d32d83d87ec24998f4051639c
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/297062
Reviewed-by: Jonathan Nieder <jrn@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2021-02-16 19:23:00 +00:00
Mike Frysinger
f307916f22 git_command: use subprocess.run for version info
The code is a bit simpler & easier to reason about.

Change-Id: If125ea7d776cdfa38a0440a2b03583de079c4839
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/297023
Reviewed-by: Michael Mortensen <mmortensen@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2021-02-16 16:26:43 +00:00
Mike Frysinger
fb21d6ab64 sync: use subprocess.run to verify tags
The code is a bit simpler & easier to reason about.

Change-Id: I149729c7d01434b08b58cc9715dcf0f0d11201c2
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/297022
Reviewed-by: Michael Mortensen <mmortensen@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2021-02-16 16:26:41 +00:00
Raman Tenneti
21dce3d8b3 init: added --use-superproject option to clone superproject.
Added --no-use-superproject to repo and init.py to disable use of
manifest superprojects.

Replaced the term "sha" with "commit id".

Added _GetBranch method to Superproject object.

Moved shared code between init and sync into SyncSuperproject function.
This function either does git clone or git fetch. If git fetch fails
it does git clone.

Changed Superproject constructor to accept manifest, repodir and branch
to avoid passing them to multiple functions as argument.

Changed functions that were raising exceptions to return either True
or False.

Saved the --use-superproject option in config as repo.superproject.
Updated internal-fs-layout.md document.

Updated the tests to work with the new API changes in Superproject.

Performance for the first time sync has improved from 20 minutes to
around 15 minutes.

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 took around 20 seconds longer because of cloning of superproject.

$ time repo_dev init -u sso://android.git.corp.google.com/platform/manifest -b master --partial-clone --clone-filter=blob:limit=10M --repo-rev=main --use-superproject
...
real	0m35.919s
user	0m21.947s
sys	0m8.977s

First run
$ time repo sync --use-superproject
...
real	16m41.982s
user	100m6.916s
sys	19m18.753s

No difference in repo sync time after the first run.

Bug: [google internal] b/179090734
Bug: https://crbug.com/gerrit/13709
Bug: https://crbug.com/gerrit/13707

Change-Id: I12df92112f46e001dfbc6f12cd633c3a15cf924b
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/296382
Reviewed-by: Mike Frysinger <vapier@google.com>
Tested-by: Raman Tenneti <rtenneti@google.com>
2021-02-11 18:59:29 +00:00
Mike Frysinger
e3315bb49a diffmanifests/sync: simplify repodir lookup
We have access to repodir on the command object itself, so we don't
need to pull it indirectly out of the manifest object.

Change-Id: I8688fb1c84979825efa966dc787e78c6f7ba3823
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/296542
Reviewed-by: Raman Tenneti <rtenneti@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
2021-02-11 02:38:53 +00:00