Mercurial > hg
view tests/test-context.py @ 27475:a2e2a8fa5fd1
revlog: avoid string slice when decompressing u* chunks
Revlog chunks can be stored uncompressed. If the first byte of the
raw data is \0, we store the data as is. Else we prefix it with 'u'.
Before, we performed a string slice to strip out the 'u' prefix.
With this patch, we use a buffer to avoid an extra memory copy and
associated garbage collection overhead.
I was unable to verify any performance impact of this patch. For both
mozilla-central and the hg repos, the number of manifest revisions
with 'u' prefixes is very small - under 1%. So this change likely
isn't called enough to have an impact on manifest reading. However,
the reasoning behind this change is solid, so it should be safe.
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Sun, 20 Dec 2015 16:00:27 -0800 |
parents | 01489fa0bbbe |
children | 5edde05ff58e |
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import os from mercurial import hg, ui, context, encoding u = ui.ui() repo = hg.repository(u, 'test1', create=1) os.chdir('test1') # create 'foo' with fixed time stamp f = open('foo', 'wb') f.write('foo\n') f.close() os.utime('foo', (1000, 1000)) # add+commit 'foo' repo[None].add(['foo']) repo.commit(text='commit1', date="0 0") if os.name == 'nt': d = repo[None]['foo'].date() print "workingfilectx.date = (%d, %d)" % (d[0], d[1]) else: print "workingfilectx.date =", repo[None]['foo'].date() # test memctx with non-ASCII commit message def filectxfn(repo, memctx, path): return context.memfilectx(repo, "foo", "") ctx = context.memctx(repo, ['tip', None], encoding.tolocal("Gr\xc3\xbcezi!"), ["foo"], filectxfn) ctx.commit() for enc in "ASCII", "Latin-1", "UTF-8": encoding.encoding = enc print "%-8s: %s" % (enc, repo["tip"].description()) # test performing a status def getfilectx(repo, memctx, f): fctx = memctx.parents()[0][f] data, flags = fctx.data(), fctx.flags() if f == 'foo': data += 'bar\n' return context.memfilectx(repo, f, data, 'l' in flags, 'x' in flags) ctxa = repo.changectx(0) ctxb = context.memctx(repo, [ctxa.node(), None], "test diff", ["foo"], getfilectx, ctxa.user(), ctxa.date()) print ctxb.status(ctxa) # test performing a diff on a memctx for d in ctxb.diff(ctxa, git=True): print d # test safeness and correctness of "ctx.status()" print '= checking context.status():' # ancestor "wcctx ~ 2" actx2 = repo['.'] repo.wwrite('bar-m', 'bar-m\n', '') repo.wwrite('bar-r', 'bar-r\n', '') repo[None].add(['bar-m', 'bar-r']) repo.commit(text='add bar-m, bar-r', date="0 0") # ancestor "wcctx ~ 1" actx1 = repo['.'] repo.wwrite('bar-m', 'bar-m bar-m\n', '') repo.wwrite('bar-a', 'bar-a\n', '') repo[None].add(['bar-a']) repo[None].forget(['bar-r']) # status at this point: # M bar-m # A bar-a # R bar-r # C foo from mercurial import scmutil print '== checking workingctx.status:' wctx = repo[None] print 'wctx._status=%s' % (str(wctx._status)) print '=== with "pattern match":' print actx1.status(other=wctx, match=scmutil.matchfiles(repo, ['bar-m', 'foo'])) print 'wctx._status=%s' % (str(wctx._status)) print actx2.status(other=wctx, match=scmutil.matchfiles(repo, ['bar-m', 'foo'])) print 'wctx._status=%s' % (str(wctx._status)) print '=== with "always match" and "listclean=True":' print actx1.status(other=wctx, listclean=True) print 'wctx._status=%s' % (str(wctx._status)) print actx2.status(other=wctx, listclean=True) print 'wctx._status=%s' % (str(wctx._status)) print "== checking workingcommitctx.status:" wcctx = context.workingcommitctx(repo, scmutil.status(['bar-m'], ['bar-a'], [], [], [], [], []), text='', date='0 0') print 'wcctx._status=%s' % (str(wcctx._status)) print '=== with "always match":' print actx1.status(other=wcctx) print 'wcctx._status=%s' % (str(wcctx._status)) print actx2.status(other=wcctx) print 'wcctx._status=%s' % (str(wcctx._status)) print '=== with "always match" and "listclean=True":' print actx1.status(other=wcctx, listclean=True) print 'wcctx._status=%s' % (str(wcctx._status)) print actx2.status(other=wcctx, listclean=True) print 'wcctx._status=%s' % (str(wcctx._status)) print '=== with "pattern match":' print actx1.status(other=wcctx, match=scmutil.matchfiles(repo, ['bar-m', 'foo'])) print 'wcctx._status=%s' % (str(wcctx._status)) print actx2.status(other=wcctx, match=scmutil.matchfiles(repo, ['bar-m', 'foo'])) print 'wcctx._status=%s' % (str(wcctx._status)) print '=== with "pattern match" and "listclean=True":' print actx1.status(other=wcctx, match=scmutil.matchfiles(repo, ['bar-r', 'foo']), listclean=True) print 'wcctx._status=%s' % (str(wcctx._status)) print actx2.status(other=wcctx, match=scmutil.matchfiles(repo, ['bar-r', 'foo']), listclean=True) print 'wcctx._status=%s' % (str(wcctx._status))