locking: take the `wlock` for the full `hg add` duration
Otherwise, there is a race condition window between the time we resolve the
file to add with the matcher and the time we lock the repo and modify the
dirstate.
For example, the working copy might have been updated away, or purged, and the
matched files would no longer be correct.
--- a/mercurial/commands.py Mon Feb 06 01:22:01 2023 +0100
+++ b/mercurial/commands.py Tue Dec 13 04:21:27 2022 +0100
@@ -252,10 +252,11 @@
Returns 0 if all files are successfully added.
"""
- m = scmutil.match(repo[None], pats, pycompat.byteskwargs(opts))
- uipathfn = scmutil.getuipathfn(repo, legacyrelativevalue=True)
- rejected = cmdutil.add(ui, repo, m, b"", uipathfn, False, **opts)
- return rejected and 1 or 0
+ with repo.wlock():
+ m = scmutil.match(repo[None], pats, pycompat.byteskwargs(opts))
+ uipathfn = scmutil.getuipathfn(repo, legacyrelativevalue=True)
+ rejected = cmdutil.add(ui, repo, m, b"", uipathfn, False, **opts)
+ return rejected and 1 or 0
@command(