Summary:
When running with a Python runtime with a slightly different zlib module,
some `zlib.compress` outputs are different. Some tests are testing the
length, or the content of `zlib.compress` output, directly or indirectly.
That's causing issues.
This patch adds a `common-zlib` hghave test so it can be used to gate tests
checking zlib output. Some lengths are also changed to glob patterns to be
compatible.
Reviewed By: ryanmce
Differential Revision: D6937735
fbshipit-source-id: 2328a39d7f2022f16d51f61b6178568b26dfe2fb
Currently, specifying both a line-range pattern and a bare file pattern
results in an AND operation whereas we probably want an OR so that bare file
patterns are like a line-range pattern with all lines specified.
So, until this works as expected, we disable this.
When a file is binary patch.trydiff() would yield None for 'hunkrange'. Handle
this case in the hunksfilter() callback.
Add tests with and without diff.git option as binary handling differs
depending on this option's value.
We add an experimental -L/--line-range option to 'hg log' taking file patterns
along with a line range using the (new) FILE,FROMLINE-TOLINE syntax where FILE
may be a pattern (matching exactly one file). The resulting history is similar
to what the "followlines" revset except that, if --patch is specified,
only diff hunks within specified line range are shown.
Basically, this brings the CLI on par with what currently only exists in hgweb
through line selection in "file" and "annotate" views resulting in a file log
with filtered patch to only display followed line range.
The option may be specified multiple times and can be combined with --rev and
regular file patterns to further restrict revisions. Usage of this option
requires --follow; revisions are shown in descending order and renames are
followed. Only the --graph option is currently not supported.
The UI is the result of a consensus from review feedback at:
https://www.mercurial-scm.org/pipermail/mercurial-devel/2017-October/106749.html
The implementation spreads between commands.log() and cmdutil module.
In commands.log(), the main loop may now use a "hunksfilter" factory (similar
to "filematcher") that, for a given "rev", produces a filtering function
for diff hunks for a given file context object.
The logic to build revisions from -L/--line-range options lives in
cmdutil.getloglinerangerevs() which produces "revs", "filematcher" and
"hunksfilter" information. Revisions obtained by following files' line range
are filtered if they do not match the revset specified by --rev option. If
regular FILE arguments are passed along with -L options, both filematchers are
combined into a new matcher.
.. feature::
Add an experimental -L/--line-range FILE,FROMLINE-TOLINE option to 'hg log'
command to follow the history of files by line range. In combination with
-p/--patch option, only diff hunks within specified line range will be
displayed. Feedback, especially on UX aspects, is welcome.
