Mercurial > hg
view tests/test-context.py @ 34682:7e3001b74ab3
tersestatus: re-implement the functionality to terse the status
The previous terse status implementation was hacking around os.listdir() and was
flaky. There have been a lot of instances of mercurial buildbots failing
and google's internal builds failing because of the
hacky implementation of terse status. Even though I wrote the last
implementation but it was hard for me to find the reason for the flake.
The new implementation can be slower than the old one but is clean and easy to
understand.
In this we create a node object for each directory and create a tree
like structure starting from the root of the working copy. While building the
tree like structure we store some information on the nodes which will be helpful
for deciding later whether we can terse the dir or not.
Once the whole tree is build we traverse and built the list of files for each
status with required tersing.
There is no behaviour change as the old test, test-status-terse.t passes with
the new implementation.
Differential Revision: https://phab.mercurial-scm.org/D985
author | Pulkit Goyal <7895pulkit@gmail.com> |
---|---|
date | Fri, 06 Oct 2017 20:54:23 +0530 |
parents | af20468eb0a4 |
children | 8a0cac20a1ad |
line wrap: on
line source
from __future__ import absolute_import, print_function import os from mercurial.node import hex from mercurial import ( context, encoding, hg, scmutil, ui as uimod, ) u = uimod.ui.load() repo = hg.repository(u, 'test1', create=1) os.chdir('test1') # create 'foo' with fixed time stamp f = open('foo', 'wb') f.write(b'foo\n') f.close() os.utime('foo', (1000, 1000)) # add+commit 'foo' repo[None].add(['foo']) repo.commit(text='commit1', date="0 0") d = repo[None]['foo'].date() if os.name == 'nt': d = d[:2] print("workingfilectx.date = (%d, %d)" % d) # 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, end='') # 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))) os.chdir('..') # test manifestlog being changed print('== commit with manifestlog invalidated') repo = hg.repository(u, 'test2', create=1) os.chdir('test2') # make some commits for i in [b'1', b'2', b'3']: with open(i, 'wb') as f: f.write(i) status = scmutil.status([], [i], [], [], [], [], []) ctx = context.workingcommitctx(repo, status, text=i, user=b'test@test.com', date=(0, 0)) ctx.p1().manifest() # side effect: cache manifestctx n = repo.commitctx(ctx) print('commit %s: %s' % (i, hex(n))) # touch 00manifest.i mtime so storecache could expire. # repo.__dict__['manifestlog'] is deleted by transaction releasefn. st = repo.svfs.stat('00manifest.i') repo.svfs.utime('00manifest.i', (st.st_mtime + 1, st.st_mtime + 1)) # read the file just committed try: if repo[n][i].data() != i: print('data mismatch') except Exception as ex: print('cannot read data: %r' % ex) with repo.wlock(), repo.lock(), repo.transaction('test'): with open(b'4', 'wb') as f: f.write(b'4') repo.dirstate.normal('4') repo.commit('4') revsbefore = len(repo.changelog) repo.invalidate(clearfilecache=True) revsafter = len(repo.changelog) if revsbefore != revsafter: print('changeset lost by repo.invalidate()')