view tests/test-fncache.out @ 7654:816b708f23af

store all heads of a branch in the branch cache

All heads of branches will be stored in a new cache file 'branchheads.cache'
within the .hg directory. The old 'branch.cache' file from older versions
will be ignored.

The new cache contents are formatted line-by-line as '{node} {branchtag}\n'.
This is the same as the previous format. Now, every head is recorded in
an oldest -> tipmost order.

The localrepo.branchheads function is reworked to use the data from the cache.

% init repo1

% add a; ci
adding a

% cat .hg/store/fncache
data/a.i

% add a.i/b; ci
adding a.i/b

% cat .hg/store/fncache
data/a.i
data/a.i.hg/b.i

% add a.i.hg/c; ci
adding a.i.hg/c

% cat .hg/store/fncache
data/a.i
data/a.i.hg/b.i
data/a.i.hg.hg/c.i

% hg verify
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
3 files, 3 changesets, 3 total revisions

% rm .hg/store/fncache

% hg verify
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
 data/a.i@0: missing revlog!
 data/a.i.hg.hg/c.i@0: missing revlog!
 data/a.i.hg/b.i@0: missing revlog!
3 files, 3 changesets, 3 total revisions
3 integrity errors encountered!
(first damaged changeset appears to be 0)