Summary:
This if statement is testing whether we ever set any data, not whether the data is truthy.
This can cause a bug where rebasing an empty file can cause IMM to fail and restart.
Test Plan: ./run-tests.py
Reviewers: durham, #mercurial
Reviewed By: durham
Differential Revision: https://phabricator.intern.facebook.com/D6687459
Signature: 6687459:1515535581:c2018237f3ca9daed6a0cb2f5a1475d1dc8e4865
Summary:
Before, we would raise whenever the `usemergedriver` condition was set when merging in-memory,
which equated to "any merge with (cd, dc, or m) actions in a repo with a mergedriver script".
This was done to be as conservative as possible.
However, a better solution is to run the preprocess() script and only raise if any files are
marked to actually be driver-resolved. That way we only restart the merge if we absolutely need
to.
Since some of our preprocess() scripts aren't ready yet, I also added
experimental.inmemory.nomergedriver in a previous change so we can deploy this in a build before the preprocess scripts are good to go.
Test Plan: ./run-tests.py
Reviewers: quark, #sourcecontrol
Reviewed By: quark
Subscribers: durham
Differential Revision: https://phabricator.intern.facebook.com/D6668426
Signature: 6668426:1515185050:a640208454caf053f8213b831d0f8e645ebe682c
If the user specifies a ui.origbackuppath, we used to always copy the file
there, but if the source file is in memory we must write it instead of copying.
Differential Revision: https://phab.mercurial-scm.org/D1806
Summary: Log whichever paths were driver-resolved but not in experimental.inmemorydisallowedpaths, so we can update experimental.inmemorydisallowedpaths and keep the experience of rebasing with IMM and
mergedriver a pleasant one.
Test Plan: .
Reviewers: #sourcecontrol
Differential Revision: https://phabricator.intern.facebook.com/D6656159
Summary: Fixing a bug that causes a fatal crash when a user attempts to delete a bookmark by inputting it's name twice, for example:
# hg bookmark --delete name name
Test Plan: The following test has been added in the test/test-bookmarks.t file
https://pxl.cl/bmTf
to test the new functionality:
~~~
kosullivan-mbp:hg-crew kosullivan$ hg diff tests/test-bookmarks.t
diff --git a/tests/test-bookmarks.t b/tests/test-bookmarks.t
--- a/tests/test-bookmarks.t
+++ b/tests/test-bookmarks.t
@@ -288,6 +288,10 @@
abort: bookmark 'A' does not exist
[255]
+ensure bookmark names are deduplicated before deleting
+ $ hg book delete-me
+ $ hg book -d delete-me delete-me
+
bookmark name with spaces should be stripped
$ hg bookmark ' x y '
~~~
Reviewers: rmcelroy,rafeca
Subscribers: suiting
Tags: python,bootcamp,source_control
Tasks: 22525999
Differential Revision: https://phabricator.intern.facebook.com/D6711774
Summary:
Demonstrate the full power of this batte station with the first extension to be default-enabled, `githelp.py`. This also lets us write a test for `DEFAULT_EXTENSIONS`
(`test-extensions-default.t`)
All other test changes are actual fallout from enabling the githelp extension.
Test Plan: Added a test.
Differential Revision: https://phabricator.intern.facebook.com/D6717098
Summary:
Based on in-person discussion in the warroom, we think this is the right path forward to "upstream" certain extensions without actually folding them into the mercurial/ codebase.
Enabling extensions by default achieves most of our goals (testing _everything_ in tests, reducing configuration permutations) without having to pay an up-front cost of fixing all the code today or accepting subpar code in mercurial/.
Test Plan: ./run-tests.py.
Reviewers: quark, #mercurial
Reviewed By: quark
Subscribers: quark
Differential Revision: https://phabricator.intern.facebook.com/D6716674
Signature: 6716674:1515803845:a209ec288341e4de8e79fd3759250e834a3573e3
Summary: Based on feedback to D6687860.
Test Plan: n/a
Reviewers: durham, #mercurial
Reviewed By: durham
Differential Revision: https://phabricator.intern.facebook.com/D6714211
Signature: 6714211:1515788399:386b8f7330f343349234d1f317e5ac0a594142cf
Summary: This avoids issues where a wrong (outside the repo) extension was used.
Test Plan: Ran all tests
Reviewers: durham, #mercurial
Reviewed By: durham
Subscribers: durham
Differential Revision: https://phabricator.intern.facebook.com/D6690534
Signature: 6690534:1515632034:1353c9272650cf925dd299d252592afd52970e98
Summary:
clindex is an hg extension, so moved to `hgext`.
linelog is not an hg extension, but is only used by hg extensions, not
`mercurial/`, so moved to `hgext/extlib`.
Test Plan: `make local` and `run-tests.py` without `-l` and with an empty `PYTHONPATH`.
Reviewers: durham, #mercurial
Reviewed By: durham
Subscribers: fried
Differential Revision: https://phabricator.intern.facebook.com/D6685080
Signature: 6685080:1515525106:88ebb275d0cac041911f243a3e82b82482b6cd34
This wasn't broken, but should mirror the non-in memory case to save an extra write.
Differential Revision: https://phab.mercurial-scm.org/D1807
(grafted from d592d5905ae972407fb6f9d649db1e2d41bf6c85)
(grafted from 9111386f1fe8316b9079669d0bd0e33704ba2a0c)
Summary:
`hg help` shows a list of all disabled extensions, which is gets by looking at
all submodules in the `hgext` modules. Exclude the new `extlib` submodule,
which is actually just a container for extension libraries.
Test Plan: Re-run `test-help.t`.
Reviewers: durham, #mercurial
Reviewed By: durham
Differential Revision: https://phabricator.intern.facebook.com/D6679750
Tasks: T24908724
Signature: 6679750:1515458834:8813e9ea9aaf6a4d55d24bc8a48ddc628f6070fa
Summary:
The `lib/linelog` directory contains pure C code that is unrelated from
either Mercurial or Python. The `mercurial/cyext` contains Cython extension
code (although for linelog's case, the Cython extension is unrelated from
Mercurial).
Cython is now a hard dependence to simplify the code.
Test Plan: `make local` and check `from mercurial.cyext import linelog` works.
Reviewers: durham, #mercurial
Reviewed By: durham
Subscribers: durham, fried
Differential Revision: https://phabricator.intern.facebook.com/D6678541
Signature: 6678541:1515455512:967266dc69c702dbff95fdea05671e11c32ebf28
The old code here was overly broad and would raise in cases when we didn't end
up calling `xmerge` and resolved using an internal tool (such as when
`premerge=True`).
Instead, let's swap out _xmerge if IMM is enabled and have the new tool raise
when called, which is the behavior we want.
Differential Revision: https://phab.mercurial-scm.org/D1739
This enables the SIGCHLD handler to work properly if some buggy program
started chg server with SIGCHLD blocked.
A test of this probably requires C code, but we don't have such kind of
tests already. Since this is a simple and clear fix, I'm leaving it as
"untested" but I did a manual test and there were no longer zombie workers.
Differential Revision: https://phab.mercurial-scm.org/D1737
Signals could be blocked by something like:
#include <unistd.h>
#include <signal.h>
int main(int argc, char * const argv[]) {
sigset_t set;
sigfillset(&set);
sigprocmask(SIG_BLOCK, &set, NULL);
execv("/bin/hg", argv);
return 0;
}
One of the problems is if SIGCHLD is blocked, chgserver would not reap
zombie workers since it depends on SIGCHLD handler entirely.
While it's the parent process to blame but it seems a good idea to just
unblock the signal from hg. FWIW git does that for SIGPIPE already [1].
Unfortunately Python 2 does not reset or provide APIs to change signal
masks. Therefore let's add one in osutil. Note: Python 3.3 introduced
`signal.pthread_sigmask` which solves the problem.
`sigprocmask` is part of POSIX [2] so there is no feature testing in
`setup.py`.
[1]: 7559a1be8a
[2]: http://pubs.opengroup.org/onlinepubs/7908799/xsh/sigprocmask.html
Differential Revision: https://phab.mercurial-scm.org/D1736
It's causing issues with pushrebase. See https://fburl.com/hd5yz5w6
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(grafted from 5e525709296041b77cda5d9f04176a31784afbb7)
(grafted from 80926668f057e712eb11fdc580f65501830f4f8c)
(grafted from a350ecb9b0e94a332fdfebb7f0bba72d87a687ca)
This fixes treemanifest-infinitepush.
(grafted from 0364e7f0f9ef7eb92c7ca6f825cd252d1ecdac2e)
(grafted from c62ae0604a5124ae799f3ba7e309c23696fbd03d)
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Summary:
This separates some concerns that were introduced in
https://phab.mercurial-scm.org/D1341.
In particular, this makes it easier for `eden_dirstate` to provide its own
implementation, which incidentally, does not use `dirstatetuple`.
Test Plan:
Ran this against a complementary change in Eden and verified that all of Eden's
integration tests pass.
Reviewers: mbthomas, durham, #hg-reviewers!
Subscribers: mercurial-devel
Differential Revision: https://phab.mercurial-scm.org/D1354
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This should be effective to reduce the number of chg servers on OS X.
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Recently hg-ssh was changed to block writes via in-memory hook configuration
instead of by passing config hooks, and dispatch.py blocks any invocation of hg
serve --stdio that has options passed. We have infrastructure that sets up read
only serve processes without using hg-ssh, and it was broken by this change.
Let's add a --read-only option to hg serve so non-hg-ssh solutions can still
launch hg in read-only mode. This makes it also work with non-stdio serve
processes as well.
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Summary: It surprising that this bug lasted for over a year.
Test Plan:
there's no tests for it. Do we have any tooling for simulating the inconsitent
state?
Reviewers: phillco, #mercurial
Reviewed By: phillco
Subscribers: baq
Differential Revision: https://phabricator.intern.facebook.com/D6651663
Signature: 6651663:1514938468:715869f443e24d7921c9a67b32d36c66fdf61a92
After applying suggestions from https://phab.mercurial-scm.org/D1564
to catch all exceptions in the same way I actually broke the handling of
KeyboardInterrupt on windows. The reason is that KeyboardInterrupt doesn't
dervie from Exception, but BaseException:
https://docs.python.org/2/library/exceptions.html starting from python 2.5
Test Plan:
Run hg on windows and ctrl-c during a large update. No random
exceptions from threads surface in the shell. Previously we'd nearly always get
stack traces from some of threads
Run tests ./run-tests.py
[...]
Failed test-convert-svn-encoding.t: output changed
# Ran 622 tests, 41 skipped, 1 failed.
python hash seed: 2962682116
The test failing seems to have nothing to do with the change and fails on base
revision as well
Differential Revision: https://phab.mercurial-scm.org/D1718
We could use patch.diffhunks() instead of patch.diff() to get filenames
without parsing patch content, but that isn't always possible because we
sometimes feed raw patch data to patch.diffstat().
In large repositories, updates involving the creation of many files check the
same directories repeatedly in the wctx manifest. Move these checks out to a
separate loop to avoid repeated checks hitting the manifest.
Differential Revision: https://phab.mercurial-scm.org/D1226
As mentioned in D1222, the recent pathconflicts change regresses update
performance in large repositories when many files are being updated.
To mitigate this, we introduce two caches of directories that have
already found to be either:
- unknown directories, but which are not aliased by files and
so don't need to be checked if they are files again; and
- missing directores, which cannot cause path conflicts, and
cannot contain a file that causes a path conflict.
When checking the paths of a file, testing against this caches means we can
skip tests that involve touching the filesystem.
Differential Revision: https://phab.mercurial-scm.org/D1224
If this feature is enabled, early options are parsed using the global options
table. As the parser stops processing options when non/unknown option is
encountered, it won't mistakenly take an option value as a new early option.
Still "--" can be injected to terminate the parsing (e.g. "hg -R -- log"), I
think it's unlikely to lead to an RCE.
To minimize a risk of this change, new fancyopts.earlygetopt() path is enabled
only when +strictflags is set. Also the strict parser doesn't support '--repo',
a short for '--repository' yet. This limitation will be removed later.
As this feature is backward incompatible, I decided to add a new opt-in
mechanism to HGPLAIN. I'm not pretty sure if this is the right choice, but
I'm thinking of adding +feature/-feature syntax to HGPLAIN. Alternatively,
we could add a new environment variable. Any bikeshedding is welcome.
Note that HGPLAIN=+strictflags doesn't work correctly in chg session since
command arguments are pre-processed in C. This wouldn't be easily fixed.
The next patch will add a flag for strict parsing of early options, where
we'll have to parse all early options at once instead of processing them
one-by-one by dispatch._earlygetopt(). That's why I decided to hook
fancyopts().
All dispatch._early*opt() functions is planned to be replaced with this
function. But in this stable series, only the strict mode will be handled
by fancyopts.earlygetopt().
The `hg lfconvert --to-normal` command uses the convert extension internally to
work its magic, but that produced devel-warn messages if the convert extension
wasn't loaded by the user. The test in 658e7a6d93e0 (modified here) wasn't
showing the warnings because the convert extension was loaded via $HGRCPATH.
Most of the config options default to None/False, but 'hg.usebranchnames' and
'hg.tagsbranch' are supposed to default to True and 'default' respectively.
The first iteration of this was to ui.setconfig() inside lfconvert, to force the
convert extension to load. But there really is no precedent for doing this, and
check-config complained that 'extensions.convert' isn't documented. Yuya
suggested this alternative.
This partially backs out 448e09d8859d.
Repoview can have a different life cycle, causing issue in some corner
cases. The particular instance that revealed this comes from localpeer. The
localpeer hold a reference to the unfiltered repository, but calling 'local()'
will create an on-demand 'visible' repoview. That repoview can be garbaged
collected any time. Here is a simplified step by step reproduction::
1) tr = peer.local().transaction('foo')
2) tr.close()
After (1), the repoview object is garbage collected, so weakref used in (2)
point to nothing.
Thanks to Sean Farley for helping raising and debugging this issue.
Before, early options were stripped from args, and because of this, some
kind of parsing errors weren't reported. For example,
$ hg ci -m -Ra file
would execute "hg ci -m file" in repository "a".
This patch fixes the issue by parsing early options again by real getopt-based
parser, and verifying the results. If the early parsing appears wrong, hg just
aborts. The current error message seems not nice, and should be improved, maybe
in V2 or follow-up.
Note that this isn't a security feature because we can still do anything by
using shell aliases.
So we can easily compare it with the corresponding getopt() result.
There's a minor behavior change. Before, "hg --cwd ''" failed with ENOENT.
But with this patch, an empty cwd is silently ignored. "hg -R ''" has always
worked as such, so -R has no BC.
This allows us to parse the original args later by full-blown getopt() in
order to verify the result of the faulty early parsing. Still we need the
'strip=True' behavior for shell aliases.
Note that this series is RFC because it seems to change too much to be
included in stable release.
