Update copyfile and linkfile if manifest updated

Currently, copyfiles and linkfiles which marked by
"<copyfile/>" and "<linkfile/>" in manifest will
be created by first exec 'repo sync'.
But if some "<copyfile/>" or "<linkfile/>" are removed
in manifest, then 'repo sync', these removed item
dest can not be removed in the sourcecode workspace.

This patch is intent to fix this issue, by save a
'copy-link-files.json' in .repo and then compared with
new dest path when next sync. If any "<copyfile/>" or
"<linkfile/>" were removed, the dest path will be
removed in sourcecode at the same time.

Bug: https://crbug.com/gerrit/11008
Change-Id: I6b7b41e94df0f9e6e52801ec755951a4c572d05d
Signed-off-by: jiajia tang <tangjiajia@xiaomi.com>
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/304202
Reviewed-by: Mike Frysinger <vapier@google.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/docs/internal-fs-layout.md b/docs/internal-fs-layout.md
index 0c59f988..8cc3cabd 100644
--- a/docs/internal-fs-layout.md
+++ b/docs/internal-fs-layout.md
@@ -110,6 +110,8 @@ Instead, you should use standard Git workflows like [git worktree] or
 [gitsubmodules] with [superprojects].
 ***
 
+*   `copy-link-files.json`: Tracking file used by `repo sync` to determine when
+    copyfile or linkfile are added or removed and need corresponding updates.
 *   `project.list`: Tracking file used by `repo sync` to determine when projects
     are added or removed and need corresponding updates in the checkout.
 *   `projects/`: Bare checkouts of every project synced by the manifest.  The