subrepo: fix a crash when archiving an svn or git subrepo stable
authorMatt Harbison <matt_harbison@yahoo.com>
Tue, 24 Dec 2019 01:38:02 -0500
branchstable
changeset 44015 7ca8aa8840c0
parent 43999 b89144b81c5d
child 44033 4e0a6d157910
subrepo: fix a crash when archiving an svn or git subrepo Only hgsubrepos have a repository attribute. This is pretty hacky, but probably the best we can do on stable. Pushing the lfstatus check down into the wrapper for hgsubrepo (and dropping the check for lfstatus at the top of `hgsubrepoarchive()`) resulted in various test failures because: 1) hgsubrepoarchive isn't returning the number of files archived at the bottom, resulting in an error about += NoneType 2) These copypasta archive wrappers don't use progress bars 3) Largefiles are *not* currently archived when using extdiff (68822b7cdd01), but pushing this context manager down into the subrepo resulted in it apparently doing so (as evidenced by progress bars being dropped) The other uses of `lfstatus()` are not in the substate processing loop, so they shouldn't be an issue. I initially put testcases in this test for largefiles-{on,off}, and it flagged a bunch of exit code differences for `cat` and `diff`, so I backed that off. Differential Revision: https://phab.mercurial-scm.org/D7714
hgext/largefiles/overrides.py
tests/test-subrepo-git.t
--- a/hgext/largefiles/overrides.py	Mon Jan 06 14:58:32 2020 -0500
+++ b/hgext/largefiles/overrides.py	Tue Dec 24 01:38:02 2019 -0500
@@ -1208,7 +1208,16 @@
             sub = ctx.workingsub(subpath)
             submatch = matchmod.subdirmatcher(subpath, match)
             subprefix = prefix + subpath + b'/'
-            with lfstatus(sub._repo):
+
+            # TODO: Only hgsubrepo instances have `_repo`, so figure out how to
+            # infer and possibly set lfstatus in hgsubrepoarchive.  That would
+            # allow only hgsubrepos to set this, instead of the current scheme
+            # where the parent sets this for the child.
+            with (
+                util.safehasattr(sub, '_repo')
+                and lfstatus(sub._repo)
+                or util.nullcontextmanager()
+            ):
                 sub.archive(archiver, subprefix, submatch)
 
     archiver.done()
@@ -1266,7 +1275,15 @@
         sub = ctx.workingsub(subpath)
         submatch = matchmod.subdirmatcher(subpath, match)
         subprefix = prefix + subpath + b'/'
-        with lfstatus(sub._repo):
+        # TODO: Only hgsubrepo instances have `_repo`, so figure out how to
+        # infer and possibly set lfstatus at the top of this function.  That
+        # would allow only hgsubrepos to set this, instead of the current scheme
+        # where the parent sets this for the child.
+        with (
+            util.safehasattr(sub, '_repo')
+            and lfstatus(sub._repo)
+            or util.nullcontextmanager()
+        ):
             sub.archive(archiver, subprefix, submatch, decode)
 
 
--- a/tests/test-subrepo-git.t	Mon Jan 06 14:58:32 2020 -0500
+++ b/tests/test-subrepo-git.t	Tue Dec 24 01:38:02 2019 -0500
@@ -376,6 +376,15 @@
   a
   s/g
 
+  $ hg -R ../tc archive -S ../lf_archive.tgz --prefix '.' \
+  >       --config extensions.largefiles= 2>/dev/null
+  $ tar -tzf ../lf_archive.tgz | sort | grep -v pax_global_header
+  .hg_archival.txt
+  .hgsub
+  .hgsubstate
+  a
+  s/g
+
 create nested repo
 
   $ cd ..