patch: make parsepatch optionally trim context lines
Previously there is a suspicious `if False and delta > 0` which dates back
to the beginning of hgext/record.py (
b2607267236d).
The "trimming context lines" feature could be useful (and is used by the
next patch). So let's enable it. This patch adds a new `maxcontext`
parameter to `recordhunk` and `parsepatch`, changing the `if False`
condition to respect it.
The old `trimcontext` implementation is also wrong - it does not update
`toline` correctly and it does not do the right thing for `before` context.
A doctest was added to guard us from making a similar mistake again.
Since `maxcontext` is set to `None` (unlimited), there is no behavior
change.
#require eol-in-paths
https://bz.mercurial-scm.org/352
test issue352
$ hg init foo
$ cd foo
$ A=`printf 'he\rllo'`
$ echo foo > "$A"
$ hg add
adding he\r (no-eol) (esc)
llo
abort: '\n' and '\r' disallowed in filenames: 'he\rllo'
[255]
$ hg ci -A -m m
adding he\r (no-eol) (esc)
llo
abort: '\n' and '\r' disallowed in filenames: 'he\rllo'
[255]
$ rm "$A"
$ echo foo > "hell
> o"
$ hg add
adding hell
o
abort: '\n' and '\r' disallowed in filenames: 'hell\no'
[255]
$ hg ci -A -m m
adding hell
o
abort: '\n' and '\r' disallowed in filenames: 'hell\no'
[255]
$ echo foo > "$A"
$ hg debugwalk
matcher: <alwaysmatcher>
f he\r (no-eol) (esc)
llo he\r (no-eol) (esc)
llo
f hell
o hell
o
$ echo bla > quickfox
$ hg add quickfox
$ hg ci -m 2
$ A=`printf 'quick\rfox'`
$ hg cp quickfox "$A"
abort: '\n' and '\r' disallowed in filenames: 'quick\rfox'
[255]
$ hg mv quickfox "$A"
abort: '\n' and '\r' disallowed in filenames: 'quick\rfox'
[255]
https://bz.mercurial-scm.org/2036
$ cd ..
test issue2039
$ hg init bar
$ cd bar
$ cat <<EOF >> $HGRCPATH
> [extensions]
> color =
> [color]
> mode = ansi
> EOF
$ A=`printf 'foo\nbar'`
$ B=`printf 'foo\nbar.baz'`
$ touch "$A"
$ touch "$B"
$ hg status --color=always
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4mfoo\x1b[0m (esc)
\x1b[0;35;1;4mbar\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4mfoo\x1b[0m (esc)
\x1b[0;35;1;4mbar.baz\x1b[0m (esc)
$ cd ..