ui: add special-purpose atexit functionality
In spite of its longstanding use, Python's built-in atexit code is
not suitable for Mercurial's purposes, for several reasons:
* Handlers run after application code has finished.
* Because of this, the code that runs handlers swallows exceptions
(since there's no possible stacktrace to associate errors with).
If we're lucky, we'll get something spat out to stderr (if stderr
still works), which of course isn't any use in a big deployment
where it's important that exceptions get logged and aggregated.
* Mercurial's current atexit handlers make unfortunate assumptions
about process state (specifically stdio) that, coupled with the
above problems, make it impossible to deal with certain categories
of error (try "hg status > /dev/full" on a Linux box).
* In Python 3, the atexit implementation is completely hidden, so
we can't hijack the platform's atexit code to run handlers at a
time of our choosing.
As a result, here's a perfectly cromulent atexit-like implementation
over which we have control. This lets us decide exactly when the
handlers run (after each request has completed), and control what
the process state is when that occurs (and afterwards).
$ cat <<EOF >> $HGRCPATH
> [ui]
> color = always
> [color]
> mode = ansi
> EOF
Terminfo codes compatibility fix
$ echo "color.none=0" >> $HGRCPATH
$ hg init repo1
$ cd repo1
$ mkdir a b a/1 b/1 b/2
$ touch in_root a/in_a b/in_b a/1/in_a_1 b/1/in_b_1 b/2/in_b_2
hg status in repo root:
$ hg status
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4ma/1/in_a_1\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4ma/in_a\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4mb/1/in_b_1\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4mb/2/in_b_2\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4mb/in_b\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4min_root\x1b[0m (esc)
$ hg status --color=debug
[status.unknown|? ][status.unknown|a/1/in_a_1]
[status.unknown|? ][status.unknown|a/in_a]
[status.unknown|? ][status.unknown|b/1/in_b_1]
[status.unknown|? ][status.unknown|b/2/in_b_2]
[status.unknown|? ][status.unknown|b/in_b]
[status.unknown|? ][status.unknown|in_root]
hg status with template
$ hg status -T "{label('red', path)}\n" --color=debug
[red|a/1/in_a_1]
[red|a/in_a]
[red|b/1/in_b_1]
[red|b/2/in_b_2]
[red|b/in_b]
[red|in_root]
hg status . in repo root:
$ hg status .
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4ma/1/in_a_1\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4ma/in_a\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4mb/1/in_b_1\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4mb/2/in_b_2\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4mb/in_b\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4min_root\x1b[0m (esc)
$ hg status --cwd a
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4ma/1/in_a_1\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4ma/in_a\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4mb/1/in_b_1\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4mb/2/in_b_2\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4mb/in_b\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4min_root\x1b[0m (esc)
$ hg status --cwd a .
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4m1/in_a_1\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4min_a\x1b[0m (esc)
$ hg status --cwd a ..
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4m1/in_a_1\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4min_a\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4m../b/1/in_b_1\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4m../b/2/in_b_2\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4m../b/in_b\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4m../in_root\x1b[0m (esc)
$ hg status --cwd b
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4ma/1/in_a_1\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4ma/in_a\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4mb/1/in_b_1\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4mb/2/in_b_2\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4mb/in_b\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4min_root\x1b[0m (esc)
$ hg status --cwd b .
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4m1/in_b_1\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4m2/in_b_2\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4min_b\x1b[0m (esc)
$ hg status --cwd b ..
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4m../a/1/in_a_1\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4m../a/in_a\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4m1/in_b_1\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4m2/in_b_2\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4min_b\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4m../in_root\x1b[0m (esc)
$ hg status --cwd a/1
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4ma/1/in_a_1\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4ma/in_a\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4mb/1/in_b_1\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4mb/2/in_b_2\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4mb/in_b\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4min_root\x1b[0m (esc)
$ hg status --cwd a/1 .
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4min_a_1\x1b[0m (esc)
$ hg status --cwd a/1 ..
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4min_a_1\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4m../in_a\x1b[0m (esc)
$ hg status --cwd b/1
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4ma/1/in_a_1\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4ma/in_a\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4mb/1/in_b_1\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4mb/2/in_b_2\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4mb/in_b\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4min_root\x1b[0m (esc)
$ hg status --cwd b/1 .
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4min_b_1\x1b[0m (esc)
$ hg status --cwd b/1 ..
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4min_b_1\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4m../2/in_b_2\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4m../in_b\x1b[0m (esc)
$ hg status --cwd b/2
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4ma/1/in_a_1\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4ma/in_a\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4mb/1/in_b_1\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4mb/2/in_b_2\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4mb/in_b\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4min_root\x1b[0m (esc)
$ hg status --cwd b/2 .
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4min_b_2\x1b[0m (esc)
$ hg status --cwd b/2 ..
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4m../1/in_b_1\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4min_b_2\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4m../in_b\x1b[0m (esc)
Make sure --color=never works
$ hg status --color=never
? a/1/in_a_1
? a/in_a
? b/1/in_b_1
? b/2/in_b_2
? b/in_b
? in_root
Make sure ui.formatted=False works
$ hg status --color=auto --config ui.formatted=False
? a/1/in_a_1
? a/in_a
? b/1/in_b_1
? b/2/in_b_2
? b/in_b
? in_root
$ cd ..
$ hg init repo2
$ cd repo2
$ touch modified removed deleted ignored
$ echo "^ignored$" > .hgignore
$ hg ci -A -m 'initial checkin'
adding .hgignore
adding deleted
adding modified
adding removed
$ hg log --color=debug
[log.changeset changeset.draft|changeset: 0:389aef86a55e]
[log.tag|tag: tip]
[log.user|user: test]
[log.date|date: Thu Jan 01 00:00:00 1970 +0000]
[log.summary|summary: initial checkin]
$ hg log -Tcompact --color=debug
[log.changeset changeset.draft|0][tip] [log.node|389aef86a55e] [log.date|1970-01-01 00:00 +0000] [log.user|test]
[ui.note log.description|initial checkin]
Labels on empty strings should not be displayed, labels on custom
templates should be.
$ hg log --color=debug -T '{label("my.label",author)}\n{label("skipped.label","")}'
[my.label|test]
$ touch modified added unknown ignored
$ hg add added
$ hg remove removed
$ rm deleted
hg status:
$ hg status
\x1b[0;32;1mA \x1b[0m\x1b[0;32;1madded\x1b[0m (esc)
\x1b[0;31;1mR \x1b[0m\x1b[0;31;1mremoved\x1b[0m (esc)
\x1b[0;36;1;4m! \x1b[0m\x1b[0;36;1;4mdeleted\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4munknown\x1b[0m (esc)
hg status modified added removed deleted unknown never-existed ignored:
$ hg status modified added removed deleted unknown never-existed ignored
never-existed: * (glob)
\x1b[0;32;1mA \x1b[0m\x1b[0;32;1madded\x1b[0m (esc)
\x1b[0;31;1mR \x1b[0m\x1b[0;31;1mremoved\x1b[0m (esc)
\x1b[0;36;1;4m! \x1b[0m\x1b[0;36;1;4mdeleted\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4munknown\x1b[0m (esc)
$ hg copy modified copied
hg status -C:
$ hg status -C
\x1b[0;32;1mA \x1b[0m\x1b[0;32;1madded\x1b[0m (esc)
\x1b[0;32;1mA \x1b[0m\x1b[0;32;1mcopied\x1b[0m (esc)
\x1b[0;0m modified\x1b[0m (esc)
\x1b[0;31;1mR \x1b[0m\x1b[0;31;1mremoved\x1b[0m (esc)
\x1b[0;36;1;4m! \x1b[0m\x1b[0;36;1;4mdeleted\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4munknown\x1b[0m (esc)
hg status -A:
$ hg status -A
\x1b[0;32;1mA \x1b[0m\x1b[0;32;1madded\x1b[0m (esc)
\x1b[0;32;1mA \x1b[0m\x1b[0;32;1mcopied\x1b[0m (esc)
\x1b[0;0m modified\x1b[0m (esc)
\x1b[0;31;1mR \x1b[0m\x1b[0;31;1mremoved\x1b[0m (esc)
\x1b[0;36;1;4m! \x1b[0m\x1b[0;36;1;4mdeleted\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4munknown\x1b[0m (esc)
\x1b[0;30;1mI \x1b[0m\x1b[0;30;1mignored\x1b[0m (esc)
\x1b[0;0mC \x1b[0m\x1b[0;0m.hgignore\x1b[0m (esc)
\x1b[0;0mC \x1b[0m\x1b[0;0mmodified\x1b[0m (esc)
hg status -A (with terminfo color):
#if tic
$ mkdir "$TESTTMP/terminfo"
$ TERMINFO="$TESTTMP/terminfo" tic "$TESTDIR/hgterm.ti"
$ TERM=hgterm TERMINFO="$TESTTMP/terminfo" hg status --config color.mode=terminfo -A
\x1b[30m\x1b[32m\x1b[1mA \x1b[30m\x1b[30m\x1b[32m\x1b[1madded\x1b[30m (esc)
\x1b[30m\x1b[32m\x1b[1mA \x1b[30m\x1b[30m\x1b[32m\x1b[1mcopied\x1b[30m (esc)
\x1b[30m\x1b[30m modified\x1b[30m (esc)
\x1b[30m\x1b[31m\x1b[1mR \x1b[30m\x1b[30m\x1b[31m\x1b[1mremoved\x1b[30m (esc)
\x1b[30m\x1b[36m\x1b[1m\x1b[4m! \x1b[30m\x1b[30m\x1b[36m\x1b[1m\x1b[4mdeleted\x1b[30m (esc)
\x1b[30m\x1b[35m\x1b[1m\x1b[4m? \x1b[30m\x1b[30m\x1b[35m\x1b[1m\x1b[4munknown\x1b[30m (esc)
\x1b[30m\x1b[30m\x1b[1mI \x1b[30m\x1b[30m\x1b[30m\x1b[1mignored\x1b[30m (esc)
\x1b[30m\x1b[30mC \x1b[30m\x1b[30m\x1b[30m.hgignore\x1b[30m (esc)
\x1b[30m\x1b[30mC \x1b[30m\x1b[30m\x1b[30mmodified\x1b[30m (esc)
The user can define effects with raw terminfo codes:
$ cat <<EOF >> $HGRCPATH
> # Completely bogus code for dim
> terminfo.dim = \E[88m
> # We can override what's in the terminfo database, too
> terminfo.bold = \E[2m
> EOF
$ TERM=hgterm TERMINFO="$TESTTMP/terminfo" hg status --config color.mode=terminfo --config color.status.clean=dim -A
\x1b[30m\x1b[32m\x1b[2mA \x1b[30m\x1b[30m\x1b[32m\x1b[2madded\x1b[30m (esc)
\x1b[30m\x1b[32m\x1b[2mA \x1b[30m\x1b[30m\x1b[32m\x1b[2mcopied\x1b[30m (esc)
\x1b[30m\x1b[30m modified\x1b[30m (esc)
\x1b[30m\x1b[31m\x1b[2mR \x1b[30m\x1b[30m\x1b[31m\x1b[2mremoved\x1b[30m (esc)
\x1b[30m\x1b[36m\x1b[2m\x1b[4m! \x1b[30m\x1b[30m\x1b[36m\x1b[2m\x1b[4mdeleted\x1b[30m (esc)
\x1b[30m\x1b[35m\x1b[2m\x1b[4m? \x1b[30m\x1b[30m\x1b[35m\x1b[2m\x1b[4munknown\x1b[30m (esc)
\x1b[30m\x1b[30m\x1b[2mI \x1b[30m\x1b[30m\x1b[30m\x1b[2mignored\x1b[30m (esc)
\x1b[30m\x1b[88mC \x1b[30m\x1b[30m\x1b[88m.hgignore\x1b[30m (esc)
\x1b[30m\x1b[88mC \x1b[30m\x1b[30m\x1b[88mmodified\x1b[30m (esc)
#endif
$ echo "^ignoreddir$" > .hgignore
$ mkdir ignoreddir
$ touch ignoreddir/file
hg status ignoreddir/file:
$ hg status ignoreddir/file
hg status -i ignoreddir/file:
$ hg status -i ignoreddir/file
\x1b[0;30;1mI \x1b[0m\x1b[0;30;1mignoreddir/file\x1b[0m (esc)
$ cd ..
check 'status -q' and some combinations
$ hg init repo3
$ cd repo3
$ touch modified removed deleted ignored
$ echo "^ignored$" > .hgignore
$ hg commit -A -m 'initial checkin'
adding .hgignore
adding deleted
adding modified
adding removed
$ touch added unknown ignored
$ hg add added
$ echo "test" >> modified
$ hg remove removed
$ rm deleted
$ hg copy modified copied
test unknown color
$ hg --config color.status.modified=periwinkle status
ignoring unknown color/effect 'periwinkle' (configured in color.status.modified)
ignoring unknown color/effect 'periwinkle' (configured in color.status.modified)
ignoring unknown color/effect 'periwinkle' (configured in color.status.modified)
M modified
\x1b[0;32;1mA \x1b[0m\x1b[0;32;1madded\x1b[0m (esc)
\x1b[0;32;1mA \x1b[0m\x1b[0;32;1mcopied\x1b[0m (esc)
\x1b[0;31;1mR \x1b[0m\x1b[0;31;1mremoved\x1b[0m (esc)
\x1b[0;36;1;4m! \x1b[0m\x1b[0;36;1;4mdeleted\x1b[0m (esc)
\x1b[0;35;1;4m? \x1b[0m\x1b[0;35;1;4munknown\x1b[0m (esc)
Run status with 2 different flags.
Check if result is the same or different.
If result is not as expected, raise error
$ assert() {
> hg status $1 > ../a
> hg status $2 > ../b
> if diff ../a ../b > /dev/null; then
> out=0
> else
> out=1
> fi
> if [ $3 -eq 0 ]; then
> df="same"
> else
> df="different"
> fi
> if [ $out -ne $3 ]; then
> echo "Error on $1 and $2, should be $df."
> fi
> }
assert flag1 flag2 [0-same | 1-different]
$ assert "-q" "-mard" 0
$ assert "-A" "-marduicC" 0
$ assert "-qA" "-mardcC" 0
$ assert "-qAui" "-A" 0
$ assert "-qAu" "-marducC" 0
$ assert "-qAi" "-mardicC" 0
$ assert "-qu" "-u" 0
$ assert "-q" "-u" 1
$ assert "-m" "-a" 1
$ assert "-r" "-d" 1
$ cd ..
test 'resolve -l'
$ hg init repo4
$ cd repo4
$ echo "file a" > a
$ echo "file b" > b
$ hg add a b
$ hg commit -m "initial"
$ echo "file a change 1" > a
$ echo "file b change 1" > b
$ hg commit -m "head 1"
$ hg update 0
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo "file a change 2" > a
$ echo "file b change 2" > b
$ hg commit -m "head 2"
created new head
$ hg merge
merging a
merging b
warning: conflicts while merging a! (edit, then use 'hg resolve --mark')
warning: conflicts while merging b! (edit, then use 'hg resolve --mark')
0 files updated, 0 files merged, 0 files removed, 2 files unresolved
use 'hg resolve' to retry unresolved file merges or 'hg update -C .' to abandon
[1]
$ hg resolve -m b
hg resolve with one unresolved, one resolved:
$ hg resolve -l
\x1b[0;31;1mU \x1b[0m\x1b[0;31;1ma\x1b[0m (esc)
\x1b[0;32;1mR \x1b[0m\x1b[0;32;1mb\x1b[0m (esc)
color coding of error message with current availability of curses
$ hg unknowncommand > /dev/null
hg: unknown command 'unknowncommand'
[255]
color coding of error message without curses
$ echo 'raise ImportError' > curses.py
$ PYTHONPATH=`pwd`:$PYTHONPATH hg unknowncommand > /dev/null
hg: unknown command 'unknowncommand'
[255]
$ cd ..