[Request] [+-- ] D8721: scmutil: allowing different files to be prefetched per revision
rdamazio (Rodrigo Damazio Bovendorp)
phabricator at mercurial-scm.org
Fri Jul 10 06:47:39 UTC 2020
rdamazio created this revision.
Herald added a reviewer: hg-reviewers.
Herald added a subscriber: mercurial-patches.
REVISION SUMMARY
The old API takes a list of revision separate from the file matcher, and thus
provides no way to fetch different sets of files from each revision. In
preparation for adding one such usage, I'm changing the API to take a list of
(revision, file matcher) tuples instead.
REPOSITORY
rHG Mercurial
BRANCH
default
REVISION DETAIL
https://phab.mercurial-scm.org/D8721
AFFECTED FILES
hgext/lfs/wrapper.py
hgext/remotefilelog/__init__.py
mercurial/archival.py
mercurial/cmdutil.py
mercurial/context.py
mercurial/merge.py
mercurial/patch.py
mercurial/scmutil.py
mercurial/subrepo.py
CHANGE DETAILS
diff --git a/mercurial/subrepo.py b/mercurial/subrepo.py
--- a/mercurial/subrepo.py
+++ b/mercurial/subrepo.py
@@ -639,7 +639,7 @@
rev = self._state[1]
ctx = self._repo[rev]
scmutil.prefetchfiles(
- self._repo, [ctx.rev()], scmutil.matchfiles(self._repo, files)
+ self._repo, [(ctx.rev(), scmutil.matchfiles(self._repo, files))]
)
total = abstractsubrepo.archive(self, archiver, prefix, match)
for subpath in ctx.substate:
diff --git a/mercurial/scmutil.py b/mercurial/scmutil.py
--- a/mercurial/scmutil.py
+++ b/mercurial/scmutil.py
@@ -1880,18 +1880,30 @@
]
-def prefetchfiles(repo, revs, match):
+def prefetchfiles(repo, revmatches):
"""Invokes the registered file prefetch functions, allowing extensions to
ensure the corresponding files are available locally, before the command
- uses them."""
- if match:
- # The command itself will complain about files that don't exist, so
- # don't duplicate the message.
- match = matchmod.badmatch(match, lambda fn, msg: None)
- else:
- match = matchall(repo)
+ uses them.
- fileprefetchhooks(repo, revs, match)
+ Args:
+ revmatches: a list of (revision, match) tuples to indicate the files to
+ fetch at each revision. If any of the match elements is None, it matches
+ all files.
+ """
+ def _matcher(m):
+ if m:
+ assert isinstance(m, matchmod.basematcher)
+ # The command itself will complain about files that don't exist, so
+ # don't duplicate the message.
+ return matchmod.badmatch(m, lambda fn, msg: None)
+ else:
+ return matchall(repo)
+
+ revbadmatches = [
+ (rev, _matcher(match)) for (rev, match) in revmatches
+ ]
+
+ fileprefetchhooks(repo, revbadmatches)
# a list of (repo, revs, match) prefetch functions
diff --git a/mercurial/patch.py b/mercurial/patch.py
--- a/mercurial/patch.py
+++ b/mercurial/patch.py
@@ -2666,7 +2666,11 @@
prefetchmatch = scmutil.matchfiles(
repo, list(modifiedset | addedset | removedset)
)
- scmutil.prefetchfiles(repo, [ctx1.rev(), ctx2.rev()], prefetchmatch)
+ revmatches = [
+ (ctx1.rev(), prefetchmatch),
+ (ctx2.rev(), prefetchmatch),
+ ]
+ scmutil.prefetchfiles(repo, revmatches)
def difffn(opts, losedata):
return trydiff(
diff --git a/mercurial/merge.py b/mercurial/merge.py
--- a/mercurial/merge.py
+++ b/mercurial/merge.py
@@ -1121,8 +1121,9 @@
matchfiles = scmutil.matchfiles
prefetch(
repo,
- [ctx.rev()],
- matchfiles(repo, [f for sublist in oplist for f, args, msg in sublist]),
+ [(ctx.rev(),
+ matchfiles(repo,
+ [f for sublist in oplist for f, args, msg in sublist]))],
)
diff --git a/mercurial/context.py b/mercurial/context.py
--- a/mercurial/context.py
+++ b/mercurial/context.py
@@ -2540,8 +2540,8 @@
# using things like remotefilelog.
scmutil.prefetchfiles(
self.repo(),
- [self.p1().rev()],
- scmutil.matchfiles(self.repo(), self._cache.keys()),
+ [(self.p1().rev(),
+ scmutil.matchfiles(self.repo(), self._cache.keys()))],
)
for path in self._cache.keys():
diff --git a/mercurial/cmdutil.py b/mercurial/cmdutil.py
--- a/mercurial/cmdutil.py
+++ b/mercurial/cmdutil.py
@@ -2138,7 +2138,9 @@
for file in repo[rev].files():
if not match or match(file):
allfiles.add(file)
- scmutil.prefetchfiles(repo, revs, scmutil.matchfiles(repo, allfiles))
+ match = scmutil.matchfiles(repo, allfiles)
+ revmatches = [(rev, match) for rev in revs]
+ scmutil.prefetchfiles(repo, revmatches)
def export(
@@ -2997,14 +2999,14 @@
try:
if mfnode and mfl[mfnode].find(file)[0]:
if _catfmtneedsdata(basefm):
- scmutil.prefetchfiles(repo, [ctx.rev()], matcher)
+ scmutil.prefetchfiles(repo, [(ctx.rev(), matcher)])
write(file)
return 0
except KeyError:
pass
if _catfmtneedsdata(basefm):
- scmutil.prefetchfiles(repo, [ctx.rev()], matcher)
+ scmutil.prefetchfiles(repo, [(ctx.rev(), matcher)])
for abs in ctx.walk(matcher):
write(abs)
@@ -3769,11 +3771,11 @@
needdata = (b'revert', b'add', b'undelete')
oplist = [actions[name][0] for name in needdata]
prefetch = scmutil.prefetchfiles
- matchfiles = scmutil.matchfiles
+ matchfiles = scmutil.matchfiles(
+ repo, [f for sublist in oplist for f in sublist])
prefetch(
repo,
- [ctx.rev()],
- matchfiles(repo, [f for sublist in oplist for f in sublist]),
+ [(ctx.rev(), matchfiles)],
)
match = scmutil.match(repo[None], pats)
_performrevert(
diff --git a/mercurial/archival.py b/mercurial/archival.py
--- a/mercurial/archival.py
+++ b/mercurial/archival.py
@@ -364,7 +364,7 @@
if total:
files.sort()
scmutil.prefetchfiles(
- repo, [ctx.rev()], scmutil.matchfiles(repo, files)
+ repo, [(ctx.rev(), scmutil.matchfiles(repo, files))]
)
progress = repo.ui.makeprogress(
_(b'archiving'), unit=_(b'files'), total=total
diff --git a/hgext/remotefilelog/__init__.py b/hgext/remotefilelog/__init__.py
--- a/hgext/remotefilelog/__init__.py
+++ b/hgext/remotefilelog/__init__.py
@@ -1118,10 +1118,10 @@
return orig(repo, remote, *args, **kwargs)
-def _fileprefetchhook(repo, revs, match):
+def _fileprefetchhook(repo, revmatches):
if isenabled(repo):
allfiles = []
- for rev in revs:
+ for rev, match in revmatches:
if rev == nodemod.wdirrev or rev is None:
continue
ctx = repo[rev]
diff --git a/hgext/lfs/wrapper.py b/hgext/lfs/wrapper.py
--- a/hgext/lfs/wrapper.py
+++ b/hgext/lfs/wrapper.py
@@ -337,7 +337,7 @@
setattr(self, name, getattr(othervfs, name))
-def _prefetchfiles(repo, revs, match):
+def _prefetchfiles(repo, revmatches):
"""Ensure that required LFS blobs are present, fetching them as a group if
needed."""
if not util.safehasattr(repo.svfs, b'lfslocalblobstore'):
@@ -347,7 +347,7 @@
oids = set()
localstore = repo.svfs.lfslocalblobstore
- for rev in revs:
+ for rev, match in revmatches:
ctx = repo[rev]
for f in ctx.walk(match):
p = pointerfromctx(ctx, f)
To: rdamazio, #hg-reviewers
Cc: mercurial-patches, mercurial-devel
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