Mercurial > hg
changeset 11632:f418d2570920
log: document the different phases in walkchangerevs
| author | Nicolas Dumazet <nicdumz.commits@gmail.com> |
|---|---|
| date | Tue, 20 Jul 2010 14:32:33 +0900 |
| parents | dbb98d8fbcaf |
| children | 6b7b99867ada |
| files | mercurial/cmdutil.py |
| diffstat | 1 files changed, 12 insertions(+), 0 deletions(-) [+] |
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--- a/mercurial/cmdutil.py Tue Jul 20 14:13:33 2010 +0900 +++ b/mercurial/cmdutil.py Tue Jul 20 14:32:33 2010 +0900 @@ -1045,12 +1045,19 @@ fncache = {} change = util.cachefunc(repo.changectx) + # First step is to fill wanted, the set of revisions that we want to yield. + # When it does not induce extra cost, we also fill fncache for revisions in + # wanted: a cache of filenames that were changed (ctx.files()) and that + # match the file filtering conditions. + if not slowpath and not match.files(): # No files, no patterns. Display all revs. wanted = set(revs) copies = [] if not slowpath: + # We only have to read through the filelog to find wanted revisions + minrev, maxrev = min(revs), max(revs) # Only files, no patterns. Check the history of each file. def filerevgen(filelog, last): @@ -1101,6 +1108,9 @@ if copied: copies.append(copied) if slowpath: + # We have to read the changelog to match filenames against + # changed files + if follow: raise util.Abort(_('can only follow copies/renames for explicit ' 'filenames')) @@ -1160,6 +1170,8 @@ if ff.match(x): wanted.discard(x) + # Now that wanted is correctly initialized, we can iterate over the + # revision range, yielding only revisions in wanted. def iterate(): if follow and not match.files(): ff = followfilter(onlyfirst=opts.get('follow_first'))