init: Added --partial-clone-exclude option.

partial-clone-exclude option excludes projects during
partial clone. This is a comma-delimited project names
(from manifest.xml). This option is persisted and it
is used by the sync command.

A project that has been unparital'ed will remain unpartial if
that project's name is specified in the --partial-clone-exclude
option. The project name should match exactly.

Added
$ ./run_tests -v

Bug: [google internal] b/175712967
"I can't "unpartial" my androidx-main checkout"

$ rm -rf androidx-main/
$ mkdir androidx-main/
$ cd androidx-main/
$ repo_dev init -u https://android.googlesource.com/platform/manifest -b androidx-main --partial-clone --clone-filter=blob:limit=10M -m default.xml
$ repo_dev sync -c -j8

+ Verify a project is partial
$ cd frameworks/support/
$ git config -l | grep  'partial'

+ Unpartial a project.
$ /google/bin/releases/android/git_repack/git_unpartial

+ Verify project is unpartial
$ git config -l | grep  'partial'
$ cd ../..

+ Exclude the project from being unparial'ed after init and sync.
$ repo_dev init -u https://android.googlesource.com/platform/manifest -b androidx-main --partial-clone --clone-filter=blob:limit=10M --partial-clone-exclude="platform/frameworks/support,platform/frameworks/support-golden" -m default.xml

+ Verify project is unpartial
$ cd frameworks/support/
$ git config -l | grep  'partial'
$ cd ../..
$ repo_dev sync -c -j8
$ cd frameworks/support/
$ git config -l | grep  'partial'
$ cd ../..

+ Remove the project from exclude list and verify that project is partially cloned.
$ repo_dev init -u https://android.googlesource.com/platform/manifest -b androidx-main --partial-clone --clone-filter=blob:limit=10M --partial-clone-exclude= -m default.xml
$ repo_dev sync -c -j8
$ cd frameworks/support/
$ git config -l | grep  'partial'

Change-Id: Id5dba418eba1d3f54b54e826000406534c0ec196
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/303162
Reviewed-by: Mike Frysinger <vapier@google.com>
Tested-by: Raman Tenneti <rtenneti@google.com>

1 files changed, 6 insertions, 1 deletions

diff --git a/project.py b/project.py
index 2567c57d..9517c5ab 100644
--- a/project.py
+++ b/project.py
@@ -1050,7 +1050,8 @@ class Project(object):
                        retry_fetches=0,
                        prune=False,
                        submodules=False,
-                       clone_filter=None):
+                       clone_filter=None,
+                       partial_clone_exclude=None):
     """Perform only the network IO portion of the sync process.
        Local working directory/branch state is not affected.
     """
@@ -1087,6 +1088,10 @@ class Project(object):
     if clone_bundle and os.path.exists(self.objdir):
       clone_bundle = False
 
+    if self.name in partial_clone_exclude:
+      clone_bundle = True
+      clone_filter = None
+
     if is_new is None:
       is_new = not self.Exists
     if is_new: