Mercurial > hg
view tests/test-status-color.t @ 46607:e9901d01d135
revlog: add a mechanism to verify expected file position before appending
If someone uses `hg debuglocks`, or some non-hg process writes to the .hg
directory without respecting the locks, or if the repo's on a networked
filesystem, it's possible for the revlog code to write out corrupted data.
The form of this corruption can vary depending on what data was written and how
that happened. We are in the "networked filesystem" case (though I've had users
also do this to themselves with the "`hg debuglocks`" scenario), and most often
see this with the changelog. What ends up happening is we produce two items
(let's call them rev1 and rev2) in the .i file that have the same linkrev,
baserev, and offset into the .d file, while the data in the .d file is appended
properly. rev2's compressed_size is accurate for rev2, but when we go to
decompress the data in the .d file, we use the offset that's recorded in the
index file, which is the same as rev1, and attempt to decompress
rev2.compressed_size bytes of rev1's data. This usually does not succeed. :)
When using inline data, this also fails, though I haven't investigated why too
closely. This shows up as a "patch decode" error. I believe what's happening
there is that we're basically ignoring the offset field, getting the data
properly, but since baserev != rev, it thinks this is a delta based on rev
(instead of a full text) and can't actually apply it as such.
For now, I'm going to make this an optional component and default it to entirely
off. I may increase the default severity of this in the future, once I've
enabled it for my users and we gain more experience with it. Luckily, most of my
users have a versioned filesystem and can roll back to before the corruption has
been written, it's just a hassle to do so and not everyone knows how (so it's a
support burden). Users on other filesystems will not have that luxury, and this
can cause them to have a corrupted repository that they are unlikely to know how
to resolve, and they'll see this as a data-loss event. Refusing to create the
corruption is a much better user experience.
This mechanism is not perfect. There may be false-negatives (racy writes that
are not detected). There should not be any false-positives (non-racy writes that
are detected as such). This is not a mechanism that makes putting a repo on a
networked filesystem "safe" or "supported", just *less* likely to cause
corruption.
Differential Revision: https://phab.mercurial-scm.org/D9952
author | Kyle Lippincott <spectral@google.com> |
---|---|
date | Wed, 03 Feb 2021 16:33:10 -0800 |
parents | 9c9e0b4b2ca7 |
children | b7fde9237c92 |
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$ 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] HGPLAIN disables color $ HGPLAIN=1 hg status --color=debug ? a/1/in_a_1 (glob) ? a/in_a (glob) ? b/1/in_b_1 (glob) ? b/2/in_b_2 (glob) ? b/in_b (glob) ? in_root HGPLAINEXCEPT=color does not disable color $ HGPLAINEXCEPT=color hg status --color=debug [status.unknown|? ][status.unknown|a/1/in_a_1] (glob) [status.unknown|? ][status.unknown|a/in_a] (glob) [status.unknown|? ][status.unknown|b/1/in_b_1] (glob) [status.unknown|? ][status.unknown|b/2/in_b_2] (glob) [status.unknown|? ][status.unknown|b/in_b] (glob) [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' \x1b[0;32madding .hgignore\x1b[0m (esc) \x1b[0;32madding deleted\x1b[0m (esc) \x1b[0;32madding modified\x1b[0m (esc) \x1b[0;32madding removed\x1b[0m (esc) $ 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 $ tic -o "$TESTTMP/terminfo" "$TESTDIR/hgterm.ti" $ ln -s "$TESTTMP/terminfo" "$TESTTMP/terminfo.cdb" $ 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' \x1b[0;32madding .hgignore\x1b[0m (esc) \x1b[0;32madding deleted\x1b[0m (esc) \x1b[0;32madding modified\x1b[0m (esc) \x1b[0;32madding removed\x1b[0m (esc) $ 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 merge --abort' 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' (use 'hg help' for a list of commands) [10] color coding of error message without curses $ echo 'raise ImportError' > curses.py $ PYTHONPATH=`pwd`:$PYTHONPATH hg unknowncommand > /dev/null hg: unknown command 'unknowncommand' (use 'hg help' for a list of commands) [10] $ cd ..