manifest: speed up matches for large sets of files If the number of files being matched is large, the bisection overhead can dominate, which caused a performance regression for revert --all and histedit. This introduces a (fairly arbitrary) cross-over from using bisections to bulk search.

perf: add methods for timing changeset file list reading

censor: add exchange tests, via local push/pull and bundle/unbundle These tests exercise the edge cases of exchanging censored commits between censor-aware Mercurial clients. These tests do not extend to cover backwards-compatible exchange; such tests require a script which builds older versions of Mercurial. For more background on the censorship feature design, see: http://mercurial.selenic.com/wiki/CensorPlan

censor: add censor command to hgext with basic client-side tests The censor command is a core extension which can replace the contents of a historical file revision with a censor "tombstone" which can be exchanged with older clients in place of the real revision data. The command rewrites the filelog by copying revision-by-revision. Care must be taken to expand the fulltext of the children of the censored revision before copying them to the new filelog; they might be stored as deltas against the uncensored revision, and those deltas will be invalidated. For more background on the censorship feature design, see: http://mercurial.selenic.com/wiki/CensorPlan

record: add comparison methods for recordhunk class

record: minor refactoring of dorecord It prepares the way for introducing the flag to reverse hunk selection

record: add tests for the curses recording interface

record: enable curses recording logic with experimental flag

record: change arguments of curses recording function This way the arguments are the same for both curses and non-curses versions.

record: change interface of the filtering function This way filtering functions accept chunks and return chunks

hgweb: replace 'ctx._repo' with 'ctx.repo()'

pvec: replace 'ctx._repo' with 'ctx.repo()'

scmutil: replace 'ctx._repo' with 'ctx.repo()'

templater: replace 'ctx._repo' with 'ctx.repo()'

largefiles: replace 'ctx._repo' with 'ctx.repo()'

obsolete: replace 'ctx._repo' with 'ctx.repo()'

fileset: replace 'ctx._repo' with 'ctx.repo()'

filectx: add a repo accessor This is similar to a07314472a80 in motivation. All contexts now have this method, so the rest of the 'ctx._repo' uses can be converted without worrying about what type of context it is.

run-tests: ignore ENOENT failures when removing old .err results When the same test runs in multiple threads and the previous run was a failure, the threads can race to delete the error output. This fixes that.

run-tests: stop storing start/stop times in a dict by test name This resolves the last breakage in run-tests that prevented me from running a single test many times in several threads in parallel. This will be useful for testing potential fixes to flaky tests.

run-tests: avoid running the same test instance concurrently There's a fair amount of mutable state stored on test case instances. That causes many weird failures if you try to do something like `run-tests.py -j16 --loop test-help.t`. The quick fix is this slightly weird test-reloading dance, which ensures that every time a test is executed it runs on a fresh instance of the TestCase subclass.

run-tests: add --runs-per-test flag This is useful when you're working with a flaky test and want to run it (for example) 500 times to see if it'll false-fail. This currently breaks if you use it with more than one thread, but I'm looking into that now.

convert: adjust progress bar for octopus merges (issue4169) For merges, we walk the files N-1 times, where N is the number of parents. This means that for an octopus merge with 3 parents and 2 changed files, we actually fetch 6 files. This corrects the progress output of the convert command when such commits are encountered.

test-convert-git: show insane progress bar with octopus merge (issue4169) This is done as a separate change from the fix so that it's obvious what is corrected by the bugfix.

manifest: have context use self.hasdir() A couple places in context currently use "x in self._dirs" to check for the existence of the directory, but this requires that all directories be loaded into a dict. Calling hasdir() instead puts the work on the the manifest to check for the existence of a directory in the most efficient manner.

manifest: add hasdir() to context This is a convenience method that calls to its manifest's hasdir(). There are parts of context that check to see if a directory exists, and this method will let implementations of manifest provide an optimal way to find a particular directory.

manifest: add manifestdict.hasdir() method Allows for alternative implementations of manifestdict to decide if a directory exists in whatever way is most optimal.

manifest: have context's dirs() call its manifest's dirs() This lets the context's dirs() method be agnostic towards any alternate manifest implementations.

manifest: add dirs() to manifestdict Manifests should have a method of accessing its own dirs, not just the context that references the manifest. This makes it easier for other optimized versions of manifests to compute their own dirs in the most efficient way.

formatter: convert None to json null It will be used by "annotate" command to represent the workingctx revision.

localrepo: extend "changeid in repo" to return True for workingctx revision This is necessary to implement "wc" symbol for workingctx, that will be used as follows: $ hg annotate -r wc FILE In principle, "rev in repo" should be True if "repo[rev]" can return a context object. But when it was implemented by ea3acaae25bb, lookup() had a long logic to map all sorts of changeids to nodes, and "None in repo" did crash because lookup() could not accept None. So I assume that the case of changeid=None was not considered. Now "None in repo" doesn't crash, it should be True for workingctx revision. Behavior of "changeid in repo": revision "null" existing rev None (workingctx) ---------- ------ ------------ ----------------- original* True True TypeError current True True False this patch True True True (*original: ea3acaae25bb)

merge with stable

crecord: fix another underbar

crecord: fiddle with vertical whitespace

crecord: fix underbar style for orig_stdout

crecord: use encoding.ucolwidth

crecord: more import style

crecord: fix some import style

manifest.c: ensure realloc_if_full() returns 1 or 0 This fixes an MSVC 2008 warning that I don't see with gcc 4.6.3-2: warning C4047: 'return' : 'bool' differs in levels of indirection from 'line *' More importantly, the truncation from pointer to 'unsigned char' would have returned 0 if self->lines pointed to an address divisible by 0xFF, which causes find_lines() to return MANIFEST_OOM. I was able to cause this to happen in a trivial program with the gcc compiler.

record: change recording function to work with crecord

record: add crecord's ui logic to core Code adapted from https://bitbucket.org/edgimar/crecord/src to respect coding convention an record's interface

record: change interface of dorecord to accept new filters This makes it easier to add different filtering logic (record /crecord ...)

record: remove duplicated tests Since the record and commit -i commands are identical we simplify record's test to just cover the help message and minimal smoke testing.

record: make record use commit -i

style: kill ersatz if-else ternary operators Although Python supports `X = Y if COND else Z`, this was only introduced in Python 2.5. Since we have to support Python 2.4, it was a very common thing to write instead `X = COND and Y or Z`, which is a bit obscure at a glance. It requires some intricate knowledge of Python to understand how to parse these one-liners. We change instead all of these one-liners to 4-liners. This was executed with the following perlism: find -name "*.py" -exec perl -pi -e 's,(\s*)([\.\w]+) = \(?(\S+)\s+and\s+(\S*)\)?\s+or\s+(\S*)$,$1if $3:\n$1 $2 = $4\n$1else:\n$1 $2 = $5,' {} \; I tweaked the following cases from the automatic Perl output: prev = (parents and parents[0]) or nullid port = (use_ssl and 443 or 80) cwd = (pats and repo.getcwd()) or '' rename = fctx and webutil.renamelink(fctx) or [] ctx = fctx and fctx or ctx self.base = (mapfile and os.path.dirname(mapfile)) or '' I also added some newlines wherever they seemd appropriate for readability There are probably a few ersatz ternary operators still in the code somewhere, lurking away from the power of a simple regex.

cvsps: use a different tiebreaker to avoid flaky test After adding some sneaky debug printing[0], I determined that this test flaked when a CVS commit containing two files starts too close to the end of a second, thus putting file "a" in one second and "b/c" in the following second. The secondary sort key meant that these changes sorted in a different order when the timestamps were different than they did when they matched. As far as I can tell, CVS walks through the files in a stable order, so by sorting on the filenames in cvsps we'll get stable output. It's fine for us to switch from sorting on the branchpoint as a secondary key because this was already the point when we didn't care, and we're just trying to break ties in a stable way. It's unclear to be if having the branchpoint present matters anymore, but it doesn't really hurt to leave it. With this change in place, I was able to run test-convert-cvs over 650 times in a row without a failure. test-convert-cvcs-synthetic.t appears to still be flaky, but I don't think it's *worse* than it was before - just not better (I observed one flaky failure in 200 runs on that test). 0: The helpful debug hack ended up being this, in case it's useful to future flaky test assassins: --- a/hgext/convert/cvsps.py +++ b/hgext/convert/cvsps.py @@ -854,6 +854,8 @@ def debugcvsps(ui, *args, **opts): ui.write(('Branch: %s\n' % (cs.branch or 'HEAD'))) ui.write(('Tag%s: %s \n' % (['', 's'][len(cs.tags) > 1], ','.join(cs.tags) or '(none)'))) + if cs.comment == 'ci1' and (cs.id == 6) == bool(cs.branchpoints): + ui.write('raw timestamp %r\n' % (cs.date,)) if cs.branchpoints: ui.write(('Branchpoints: %s \n') % ', '.join(sorted(cs.branchpoints)))

templates: fix "log -q" output of default style It was changed at 0ded0f0b1c04 unintentionally due to name conflicts.

merge with stable

subrepo: replace 'ctx._repo' with 'ctx.repo()'

files: replace 'ctx._repo' with 'ctx.repo()'

context: add a repo accessor There are 29 instances of 'ctx._repo' in the code, so make the ability to access more official.

test-histedit-edit.t: demonstrate qnew fails during a histedit (issue4366) This was accidentally fixed by other work, but given that it's been broken in the past, I'd like to have a test defending us against regressions in this area, especially as we add more functionality to histedit.

lazymanifest: make __iter__ generate filenames, not 3-tuples The _lazymanifest type(s) behave very much like a sorted dict with filenames as keys and (nodeid, flags) as values. It therefore seems surprising that its __iter__ generates 3-tuples of (path, nodeid, flags). Let's make it match dict's behavior of generating the keys instead, and add a new iterentries method for the 3-tuples. With this change, the "x" in "if x in lm" and "for x in lm" now have the same type (a filename string).

lazymanifest: fix pure hg iterkeys() I broke pure hg when I just added iterkeys() to the native version in 2b7ab29627fd. I forgot to make the pure version sorted. Fix it.

hgweb: prevent loading style map from directories other than specified paths A style name should not contain "/", "\", "." and "..". Otherwise, templates could be loaded from outside of the specified templates directory by invalid ?style= parameter. hgweb should not allow such requests. This change means subdir/name is also rejected.

lazymanifest: add iterkeys() method So we don't have to iteratate over (path, node, flags) tuples only to throw away the node and flags.

lazymanifest: extract function for iterating to next line This will soon be reused by keys iterator.

lazymanifest: fail if path or hash strings cannot be created While generating (path, hash, flags), we fail if flags cannot be created. We should also fail if path or hash cannot be created.

manifest: rewrite find(node, f) in terms of read(node) Since find() now always works with a full manifest, we can simplify by calling read() to give us that manifest. That way, we also populate the manifest cache. However, now that we no longer parse the manifest text into a Python type (thanks, lazymanifest/Augie), the cost of parsing (scanning for newlines, really) is small enough that it seems generally drowned by revlog reading.

ssl: load CA certificates from system's store by default on Python 2.7.9 This will make it easy to manage in-house CA certificates, which are often used in corporate environment and installed into the Windows' certs store. Unlike Apple python, the dummycert trick isn't necessary on Python 2.7.9. The default web.cacerts will be set as follows: environment web.cacerts behavior ------------- ----------- ----------------------------------------- Apple Python dummycert fall back to system's store Python 2.7.8 '!' never use CA certs (show warning instead) Python 2.7.9+ None load CA certs from system's store