Summary:
Use the new gitignore matcher powered by Rust.
The hgignore matcher has some laziness, but is not tree-aware - with N
"hgignore" files loaded, it needs O(N) time to match. The gitignore matcher
is tree-aware and backed by native code with decent time complexity.
We have been maintaining a translation script that collects all gitignores,
generate hgignore files with very long regexp for them. That script has
issues with sparse recently. This diff allows us to remove those generated
hgignore files from the repo.
Note: fsmonitor state does not contain ignored files. And ignore
invalidation is generally broken in fsmonitor (it only checks top-level
.hgignore). That means, once a file is ignored, it cannot be "unignored" by
just removing the matched pattern from ".gitignore". The file has to be
"touched" or so.
Reviewed By: markbt
Differential Revision: D7319608
fbshipit-source-id: 1763544aedb44676413efb6d14ffd3917ed3b1cd
Summary: sed -i without arguments doesn't work on OSX.
Reviewed By: farnz
Differential Revision: D7195193
fbshipit-source-id: a8eead927c94404a37ce5df956de82d29bc1b6a8
Summary:
Let's switch to xdiff for its better diff quality and performance!
The test changes demonstrate xdiff's better diff quality.
Reviewed By: ryanmce
Differential Revision: D7135206
fbshipit-source-id: 1775df6fc0f763df074b4f52779835d6ef0f3a4e
Summary:
Implement a `mercurial.cext.xdiff` module that exposes the xdiff algorithm.
`xdiff.blocks` should be a drop-in replacement for `bdiff.blocks`.
In theory we can change the pure C version of `bdiff.c` directly. However
that means we lose bdiff entirely. It seems more flexible to have both at
the same time so they can be easily switched via Python code. Hence the
Python module approach.
Reviewed By: ryanmce
Differential Revision: D7135205
fbshipit-source-id: 48cd3b5be7fd5ef41b64eab6c76a5c8a6ce99e05
Summary:
Add a simple binary that runs xdiff in a minimal way. This is mainly for
exposing xdiff logic so it can be used in command line for testing purpose.
It also serves as an example of how to use xdiff.
Reviewed By: ryanmce
Differential Revision: D7133531
fbshipit-source-id: ceb608f5754b61eaa95804730b3c89643ff1837b
Summary:
Vendor git's xdiff library from git commit
d7c6c2369d7c6c2369ac21141b7c6cceaebc6414ec3da14ad using GPL2+ license.
There is another recent user report that hg diff generates suboptimal
result. It seems the fix to issue4074 isn't good enough. I crafted some
other interesting cases, and hg diff barely has any advantage compared with
gnu diffutils or git diff.
| testcase | gnu diffutils | hg diff | git diff |
| | lines time | lines time | lines time |
| patience | 6 0.00 | 602 0.08 | 6 0.00 |
| random | 91772 0.90 | 109462 0.70 | 91772 0.24 |
| json | 2 0.03 | 1264814 1.81 | 2 0.29 |
"lines" means the size of the output, i.e. the count of "+/-" lines. "time"
means seconds needed to do the calculation. Both are the smaller the better.
"hg diff" counts Python startup overhead.
Git and GNU diffutils generate optimal results. For the "json" case, git can
have an optimization that does a scan for common prefix and suffix first,
and match them if the length is greater than half of the text. See
https://neil.fraser.name/news/2006/03/12/. That would make git the fastest
for all above cases.
About testcases:
patience:
Aiming for the weakness of the greedy "patience diff" algorithm. Using
git's patience diff option would also get suboptimal result. Generated using
the Python script:
```
open('a', 'w').write('\n'.join(list('a' + 'x' * 300 + 'u' + 'x' * 700 + 'a\n')))
open('b', 'w').write('\n'.join(list('b' + 'x' * 700 + 'u' + 'x' * 300 + 'b\n')))
```
random:
Generated using the script in `test-issue4074.t`. It practically makes the
algorithm suffer. Impressively, git wins in both performance and diff
quality.
json:
The recent user reported case. It's a single line movement near the end of a
very large (800K lines) JSON file.
Reviewed By: ryanmce
Differential Revision: D7124455
fbshipit-source-id: 832651115da770f9d2ed5fdff2e200453c0013f8
Summary:
Don't think this is required or used anymore and reveals information
about the structure of our project if we open source our mercurial.
Reviewed By: quark-zju
Differential Revision: D7128203
fbshipit-source-id: 4cdfa008631d08321a4d5a1c8f18cef429c35077
Summary:
Delete hgext/extlib/cstore/bitmanipulation.h, and just use the existing
mercurial/bitmanipulation.h header file instead.
It looks like there are quite a few other copy-and-pasted files between these
directories too, which should probably still be cleaned up.
Reviewed By: quark-zju
Differential Revision: D7008478
fbshipit-source-id: 1fdc779b470242d3083a3948dace3951922e836c
Summary:
In some tests using chg, `--traceback` got accidentally enabled for
commands without `--traceback`. That is a side effect starting
the server using `--traceback`. Let's avoid passing `--traceback`
when starting the server.
Differential Revision: D6942974
fbshipit-source-id: d40697c8a9487ae53ffb5ae43da4f4582ca86545
Summary:
This check is useful and detects real errors (ex. fbconduit). Unfortunately
`arc lint` will run it with both py2 and py3 so a lot of py2 builtins will
still be warned.
I didn't find a clean way to disable py3 check. So this diff tries to fix them.
For `xrange`, the change was done by a script:
```
import sys
import redbaron
headertypes = {'comment', 'endl', 'from_import', 'import', 'string',
'assignment', 'atomtrailers'}
xrangefix = '''try:
xrange(0)
except NameError:
xrange = range
'''
def isxrange(x):
try:
return x[0].value == 'xrange'
except Exception:
return False
def main(argv):
for i, path in enumerate(argv):
print('(%d/%d) scanning %s' % (i + 1, len(argv), path))
content = open(path).read()
try:
red = redbaron.RedBaron(content)
except Exception:
print(' warning: failed to parse')
continue
hasxrange = red.find('atomtrailersnode', value=isxrange)
hasxrangefix = 'xrange = range' in content
if hasxrangefix or not hasxrange:
print(' no need to change')
continue
# find a place to insert the compatibility statement
changed = False
for node in red:
if node.type in headertypes:
continue
# node.insert_before is an easier API, but it has bugs changing
# other "finally" and "except" positions. So do the insert
# manually.
# # node.insert_before(xrangefix)
line = node.absolute_bounding_box.top_left.line - 1
lines = content.splitlines(1)
content = ''.join(lines[:line]) + xrangefix + ''.join(lines[line:])
changed = True
break
if changed:
# "content" is faster than "red.dumps()"
open(path, 'w').write(content)
print(' updated')
if __name__ == "__main__":
sys.exit(main(sys.argv[1:]))
```
For other py2 builtins that do not have a py3 equivalent, some `# noqa`
were added as a workaround for now.
Reviewed By: DurhamG
Differential Revision: D6934535
fbshipit-source-id: 546b62830af144bc8b46788d2e0fd00496838939
Summary:
This patch fixes the regex. There are too many methods with underscores.
So a whitelist was added to avoid unnecessary churn of line numbers in
test-check-code.t.
Reviewed By: ryanmce
Differential Revision: D6937917
fbshipit-source-id: 9b7816278fc6f414c21f921b67d1cbb6a735a30f
Summary:
`test-check-commit` gives false positives for some commits. Remove it.
Facebook
The commits that give false positives include commits that are outside of
`fbcode/scm/hg`.
Reviewed By: quark-zju
Differential Revision: D6819543
fbshipit-source-id: ddfaae7350d4ad6503b7a7ec22e899bb7ae743df
Summary:
Port the double blank line and "foobar" naming rules to check-code.
check-commit checks "changes" while check-code checks "snapshot".
Checking changes would have a couple of disadvantages:
- No check after code is committed
- Could have difficulity dealing with commits involving other changes
in a mono repo.
Facebook
Context: https://fb.facebook.com/groups/scm/permalink/1558174000898881
Reviewed By: DurhamG
Differential Revision: D6928820
fbshipit-source-id: 9ea998731778150b60112840bce702d9584ba15b
Summary:
Previously `hg server` uses `HGPORT` that might be in use. This patch uses
`-p 0 --port-file ...` so `hg server` always gets assigned a free port.
The change was first made by the following Ruby script:
```
re = /^ \$ hg serve(.*) -p \$(HGPORT[12]?) (.*[^\\])$\n \$/
Dir['*.t'].each do |path|
old = File.read(path)
new = old.lines.map do |l|
next l if l[/\(glob\)/] or not l['$HGPORT'] or l[/^ [$>]/]
"#{l.chomp} (glob)\n"
end.join.gsub re, <<-'EOS'.chomp
$ hg serve\1 -p 0 --port-file $TESTTMP/.port \3
$ \2=`cat $TESTTMP/.port`
$
EOS
File.write(path, new) if old != new
end
```
Then there are some manual changes:
run-tests.py: It now treats `$HGPORT` in output as glob pattern `*`, since
it does not know the assigned value in tests.
test-bookmarks-pushpull.t, test-https.t: Some `hg pull`s were changed to use
explicit paths instead of relying on `.hgrc` since the test restarts the
server and `.hg/hgrc` having an outdated URL.
test-schemes.t: The test writes `$HGPORT` to `.hgrc` before assigning it.
Changed the order so the correct `$HGPORT` is written.
test-patchbomb-tls.t: Changed `(?) (glob)` to `(glob) (?)`.
Reviewed By: DurhamG
Differential Revision: D6925398
fbshipit-source-id: d5c10476f43ce23f9e99618807580cf8ba92595c
Summary:
This solves issues when the binary is linked with another C library that define
those functions.
Reviewed By: DurhamG
Differential Revision: D6888242
fbshipit-source-id: d714c7eb18bc4c281912df50567e7f176d64a669
Summary:
This fixes `test-check-module-imports.t` running under `buck test`
because `lz4` is not treated as a system module.
Reviewed By: DurhamG
Differential Revision: D6881307
fbshipit-source-id: 26a7e2d36c1ae6815064de15c6bdcb6e762c8ddf
Summary:
This is a resend of https://phab.mercurial-scm.org/D1430, without breaking
Windows.
I encountered "too many opened files" problem due to treemanifest packs on my
laptop. This patch seems to be the easiest solution without side effects. Other
choices are deleting files (seem like an non-ideal workaround), forcing a
repack (could be slow), and rewriting using Rust (could take too long).
The root cause is Python's `mmap` implementation has to keep a fd internally
to support `mmapobj.resize` API. We only need read-only operation on the
mmap object so the fd is unnecessary. Re-implement a minimal mmap interface
for this purpose.
Reviewed By: DurhamG
Differential Revision: D6835890
fbshipit-source-id: 74c429e957cb8677682604eb02fc38b5b8d13ef7
Summary:
I got tired of my prompt taking a long time to return to me sometimes after a command ended, and started to investigate, and found this:
```
aregner 4069767 0.0 0.0 115052 5076 pts/17 Ss+ 12:32 0:00 \_ -bash
aregner 298922 0.0 0.0 115052 3540 pts/17 S+ 14:40 0:00 | \_ -bash
aregner 298923 0.0 0.0 115052 3668 pts/17 S+ 14:40 0:00 | \_ -bash
aregner 273995 0.0 0.0 115052 4824 pts/9 Ss+ 14:32 0:00 \_ -bash
aregner 274061 0.0 0.0 115052 3820 pts/9 S+ 14:32 0:00 \_ -bash
[devbig308 (77bac96|remote/fbcode/warm):~/2nd-fbcode] strace -p 298923
strace: Process 298923 attached
stat("/home/.hg",
```
Sometimes it will hang ong this for 5+ minutes. I'm assuming this has something to do with autofs and NFS home dirs or something or another, but it doesn't matter because when it gets to this point it should just stop looking for a source control directory.
Reviewed By: ryanmce
Differential Revision: D6790747
fbshipit-source-id: d32c74476046aa6b62bc26725eea6b60a4eaa9f7
Summary:
It's pretty handy. The implementation is simple and clean. So move it from
contrib and enable it by default. "import"s are adjusted to make the module
checker happy.
Security and UX wise, since we have `--debugger` already, adding another
REPL seems fine.
Test Plan: Ran all tests
Reviewers: phillco, #mercurial
Reviewed By: phillco
Differential Revision: https://phabricator.intern.facebook.com/D6741283
Signature: 6741283:1516225662:ddc19a663e7ecef2a1fdaa5041f308dc838a8471
Summary:
Reorder the imports to make the module checker happy.
The module checker should be aware of Cython module paths. Do it manually.
Test Plan: Run `test-check-module-imports.t`
Reviewers: durham, #mercurial
Reviewed By: durham
Differential Revision: https://phabricator.intern.facebook.com/D6688384
Signature: 6688384:1515540420:bec02696b24c12cb4fa2595fd235fc8f3246b2a2
Summary:
Get rid of `gettimeofday` and switch to C++11 `std::chrono` for Windows/rare
platform compatibility.
Also format the code using clang-format.
Test Plan:
Make sure it build on both x64 and Power8 platform.
`make local` and try it in IPython:
```
In [1]: from hgext import traceprof
In [2]: def f():
...: g(1)
...:
In [3]: def g(x):
...: print(x+1)
...:
In [4]: from mercurial import ui
In [7]: with traceprof.profile(ui.ui(), sys.stderr):
...: f()
...:
2
| <module> ipython2:3
| start_ipython IPython/__init__.py:93
| launch_instance application.py:650
| start ipapp.py:342
| mainloop interactiveshell.py:479
| interact interactiveshell.py:459
| run_cell interactiveshell.py:2591
| run_ast_nodes interactiveshell.py:2770
| run_code interactiveshell.py:2851
| <module> <ipython-input-7-2e5a012739d1>:1
| __exit__ contextlib.py:21
Total time: 0 ms
```
Note: it crashes on Windows, which will be workarounded in a later patch.
Reviewers: rmcelroy, #mercurial
Reviewed By: rmcelroy
Subscribers: fried
Differential Revision: https://phabricator.intern.facebook.com/D6681062
Tags: aarch64
Signature: 6681062:1515488414:6b7a51eda9e9764560d415350630590e4817fae2
Summary: Moves the extension itself.
Test Plan:
make local && ./run-tests.py
A future patch fixes the tests once
fastmanifest is also moved.
Reviewers: phillco, #mercurial
Reviewed By: phillco
Differential Revision: https://phabricator.intern.facebook.com/D6684580
Signature: 6684580:1515521896:68a4d648d9f5433d6eeda8be01740fbe12abf44e
Summary:
Moves ctreemanifest into hgext/extlib/. D6679698 was committed to scratch branch
by mistake.
Test Plan: make local && cd tests && ./run-tests.py
Reviewers: durham, #mercurial, #sourcecontrol
Reviewed By: durham
Differential Revision: https://phabricator.intern.facebook.com/D6684623
Signature: 6684623:1515522634:9bec363d00990d9ff7d5f655e30ab8cae636155c
Summary:
Moves ctreemanifest into hgext/extlib/. It will be built in a later
step when we add cstore to the build.
Test Plan: make local && cd tests && ./run-tests.py
Reviewers: #mercurial
Differential Revision: https://phabricator.intern.facebook.com/D6678844
Summary:
This moves the cdatapack code to the new lib/ directory and adds it to the main
setup.py.
Test Plan: hg purge --all && make local && cd tests && ./run-tests.py -S -j 48
Reviewers: #mercurial
Differential Revision: https://phabricator.intern.facebook.com/D6677491
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
Summary:
cdatapack depends on clib, so let's move it to lib/ outside of fb-hgext.
None of the consumers of these files were changed. They will be changed as they
are moved into the main part of the repo.
Test Plan: hg purge --all && make local && cd tests && ./run-tests.py -S -j 48
Reviewers: mitrandir, #mercurial
Reviewed By: mitrandir
Differential Revision: https://phabricator.intern.facebook.com/D6677197
Signature: 6677197:1515447873:399fb3e7beb5cc1ad8db18f42b359ffbfbeb21f2
Summary:
cdatapack depends on sha1detectcoll, so let's add the library to setup.py before
we add cdatapack.
Test Plan:
hg purge --all && make local && cd tests/ && ./run-tests.py -S -j 48
Verified sha1dc was in the build output and the tests passed.
Reviewers: quark, #mercurial
Reviewed By: quark
Differential Revision: https://phabricator.intern.facebook.com/D6676405
Signature: 6676405:1515444508:2da65c6c3a18267a1d3c151c8e9acf60b674ffc2
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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The rule only triggered on non Windows platforms, even though Windows also
required an adjustment. Automatic seems better.
The aggressive globbing in test-subrepo-svn.t was found and rewritten by the
substitution.
committablefilectx has three subclasses: workingfilectx, memfilectx,
and overlayfilectx. committablefilectx takes an optional (change) ctx
instance to its constructor. If it's provided, it's set on the
instance as self._changectx. If not, that property is supposed to be
defined by the class. However, only workingfilectx does that. The
other two will have the property undefined if it's not passed in the
constructor. That seems bad to me. This patch makes the changectx
argument to the memfilectx constructor mandatory because that fixes
the failure I ran into. It seems like we should also fix the
overlayfilectx case.
Differential Revision: https://phab.mercurial-scm.org/D1658
I would like to pass the memctx to the memfilectx constructor, but
it's not available where we currently create the memfilectx. It is
available in the 'filectxfn' callback, so let's create the memfilectx
there instead. A later patch will start actually passing the memctx.
Differential Revision: https://phab.mercurial-scm.org/D1669
I'll probably resurrect at least some of these as replacement patterns to switch
'\' to '/' when creating tests at some point. But since this subset of globs
isn't needed anymore after 1c1248ea2685, and the rules are blocking the glob
removal, just drop them for now. It probably isn't worth turning them into
checks for unnecessary globs being present.
Yay, we have crossed 100 in number of tests passing on Python 3. There are 662
tests in our test suite, so there is a lot more which is need to be done.
Differential Revision: https://phab.mercurial-scm.org/D1648
