templates: add filter to reverse list
The filter supports only lists because for lists, it’s straightforward to
implement. Reversing text doesn’t seem very useful and is hard to implement.
Reversing the bytes would break multi-bytes encodings. Reversing the code
points would break characters consisting of multiple code points. Reversing
graphemes is non-trivial without using a library not included in the standard
library.
setup
$ cat >> $HGRCPATH << EOF
> [extensions]
> blackbox=
> mock=$TESTDIR/mockblackbox.py
> [blackbox]
> track = command, commandfinish, tagscache
> EOF
Helper functions:
$ cacheexists() {
> [ -f .hg/cache/tags2-visible ] && echo "tag cache exists" || echo "no tag cache"
> }
$ fnodescacheexists() {
> [ -f .hg/cache/hgtagsfnodes1 ] && echo "fnodes cache exists" || echo "no fnodes cache"
> }
$ dumptags() {
> rev=$1
> echo "rev $rev: .hgtags:"
> hg cat -r$rev .hgtags
> }
# XXX need to test that the tag cache works when we strip an old head
# and add a new one rooted off non-tip: i.e. node and rev of tip are the
# same, but stuff has changed behind tip.
Setup:
$ hg init t
$ cd t
$ cacheexists
no tag cache
$ fnodescacheexists
no fnodes cache
$ hg id
000000000000 tip
$ cacheexists
no tag cache
$ fnodescacheexists
no fnodes cache
$ echo a > a
$ hg add a
$ hg commit -m "test"
$ hg co
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg identify
acb14030fe0a tip
$ hg identify -r 'wdir()'
acb14030fe0a tip
$ cacheexists
tag cache exists
No fnodes cache because .hgtags file doesn't exist
(this is an implementation detail)
$ fnodescacheexists
no fnodes cache
Try corrupting the cache
$ printf 'a b' > .hg/cache/tags2-visible
$ hg identify
acb14030fe0a tip
$ cacheexists
tag cache exists
$ fnodescacheexists
no fnodes cache
$ hg identify
acb14030fe0a tip
Create local tag with long name:
$ T=`hg identify --debug --id`
$ hg tag -l "This is a local tag with a really long name!"
$ hg tags
tip 0:acb14030fe0a
This is a local tag with a really long name! 0:acb14030fe0a
$ rm .hg/localtags
Create a tag behind hg's back:
$ echo "$T first" > .hgtags
$ cat .hgtags
acb14030fe0a21b60322c440ad2d20cf7685a376 first
$ hg add .hgtags
$ hg commit -m "add tags"
$ hg tags
tip 1:b9154636be93
first 0:acb14030fe0a
$ hg identify
b9154636be93 tip
We should have a fnodes cache now that we have a real tag
The cache should have an empty entry for rev 0 and a valid entry for rev 1.
$ fnodescacheexists
fnodes cache exists
$ f --size --hexdump .hg/cache/hgtagsfnodes1
.hg/cache/hgtagsfnodes1: size=48
0000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
0010: ff ff ff ff ff ff ff ff b9 15 46 36 26 b7 b4 a7 |..........F6&...|
0020: 73 e0 9e e3 c5 2f 51 0e 19 e0 5e 1f f9 66 d8 59 |s..../Q...^..f.Y|
$ hg debugtagscache
0 acb14030fe0a21b60322c440ad2d20cf7685a376 missing
1 b9154636be938d3d431e75a7c906504a079bfe07 26b7b4a773e09ee3c52f510e19e05e1ff966d859
Repeat with cold tag cache:
$ rm -f .hg/cache/tags2-visible .hg/cache/hgtagsfnodes1
$ hg identify
b9154636be93 tip
$ fnodescacheexists
fnodes cache exists
$ f --size --hexdump .hg/cache/hgtagsfnodes1
.hg/cache/hgtagsfnodes1: size=48
0000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
0010: ff ff ff ff ff ff ff ff b9 15 46 36 26 b7 b4 a7 |..........F6&...|
0020: 73 e0 9e e3 c5 2f 51 0e 19 e0 5e 1f f9 66 d8 59 |s..../Q...^..f.Y|
And again, but now unable to write tag cache or lock file:
#if unix-permissions no-fsmonitor
$ rm -f .hg/cache/tags2-visible .hg/cache/hgtagsfnodes1
$ chmod 555 .hg/cache
$ hg identify
b9154636be93 tip
$ chmod 755 .hg/cache
(this block should be protected by no-fsmonitor, because "chmod 555 .hg"
makes watchman fail at accessing to files under .hg)
$ chmod 555 .hg
$ hg identify
b9154636be93 tip
$ chmod 755 .hg
#endif
Tag cache debug info written to blackbox log
$ rm -f .hg/cache/tags2-visible .hg/cache/hgtagsfnodes1
$ hg identify
b9154636be93 tip
$ hg blackbox -l 6
1970-01-01 00:00:00.000 bob @b9154636be938d3d431e75a7c906504a079bfe07 (5000)> identify
1970-01-01 00:00:00.000 bob @b9154636be938d3d431e75a7c906504a079bfe07 (5000)> writing 48 bytes to cache/hgtagsfnodes1
1970-01-01 00:00:00.000 bob @b9154636be938d3d431e75a7c906504a079bfe07 (5000)> 0/2 cache hits/lookups in * seconds (glob)
1970-01-01 00:00:00.000 bob @b9154636be938d3d431e75a7c906504a079bfe07 (5000)> writing .hg/cache/tags2-visible with 1 tags
1970-01-01 00:00:00.000 bob @b9154636be938d3d431e75a7c906504a079bfe07 (5000)> identify exited 0 after * seconds (glob)
1970-01-01 00:00:00.000 bob @b9154636be938d3d431e75a7c906504a079bfe07 (5000)> blackbox -l 6
Failure to acquire lock results in no write
$ rm -f .hg/cache/tags2-visible .hg/cache/hgtagsfnodes1
$ echo 'foo:1' > .hg/store/lock
$ hg identify
b9154636be93 tip
$ hg blackbox -l 6
1970-01-01 00:00:00.000 bob @b9154636be938d3d431e75a7c906504a079bfe07 (5000)> identify
1970-01-01 00:00:00.000 bob @b9154636be938d3d431e75a7c906504a079bfe07 (5000)> not writing .hg/cache/hgtagsfnodes1 because lock cannot be acquired
1970-01-01 00:00:00.000 bob @b9154636be938d3d431e75a7c906504a079bfe07 (5000)> 0/2 cache hits/lookups in * seconds (glob)
1970-01-01 00:00:00.000 bob @b9154636be938d3d431e75a7c906504a079bfe07 (5000)> writing .hg/cache/tags2-visible with 1 tags
1970-01-01 00:00:00.000 bob @b9154636be938d3d431e75a7c906504a079bfe07 (5000)> identify exited 0 after * seconds (glob)
1970-01-01 00:00:00.000 bob @b9154636be938d3d431e75a7c906504a079bfe07 (5000)> blackbox -l 6
$ fnodescacheexists
no fnodes cache
$ rm .hg/store/lock
$ rm -f .hg/cache/tags2-visible .hg/cache/hgtagsfnodes1
$ hg identify
b9154636be93 tip
Create a branch:
$ echo bb > a
$ hg status
M a
$ hg identify
b9154636be93+ tip
$ hg co first
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg id
acb14030fe0a+ first
$ hg id -r 'wdir()'
acb14030fe0a+ first
$ hg -v id
acb14030fe0a+ first
$ hg status
M a
$ echo 1 > b
$ hg add b
$ hg commit -m "branch"
created new head
Creating a new commit shouldn't append the .hgtags fnodes cache until
tags info is accessed
$ f --size --hexdump .hg/cache/hgtagsfnodes1
.hg/cache/hgtagsfnodes1: size=48
0000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
0010: ff ff ff ff ff ff ff ff b9 15 46 36 26 b7 b4 a7 |..........F6&...|
0020: 73 e0 9e e3 c5 2f 51 0e 19 e0 5e 1f f9 66 d8 59 |s..../Q...^..f.Y|
$ hg id
c8edf04160c7 tip
First 4 bytes of record 3 are changeset fragment
$ f --size --hexdump .hg/cache/hgtagsfnodes1
.hg/cache/hgtagsfnodes1: size=72
0000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
0010: ff ff ff ff ff ff ff ff b9 15 46 36 26 b7 b4 a7 |..........F6&...|
0020: 73 e0 9e e3 c5 2f 51 0e 19 e0 5e 1f f9 66 d8 59 |s..../Q...^..f.Y|
0030: c8 ed f0 41 00 00 00 00 00 00 00 00 00 00 00 00 |...A............|
0040: 00 00 00 00 00 00 00 00 |........|
Merge the two heads:
$ hg merge 1
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ hg blackbox -l3
1970-01-01 00:00:00.000 bob @c8edf04160c7f731e4589d66ab3ab3486a64ac28 (5000)> merge 1
1970-01-01 00:00:00.000 bob @c8edf04160c7f731e4589d66ab3ab3486a64ac28+b9154636be938d3d431e75a7c906504a079bfe07 (5000)> merge 1 exited 0 after * seconds (glob)
1970-01-01 00:00:00.000 bob @c8edf04160c7f731e4589d66ab3ab3486a64ac28+b9154636be938d3d431e75a7c906504a079bfe07 (5000)> blackbox -l3
$ hg id
c8edf04160c7+b9154636be93+ tip
$ hg status
M .hgtags
$ hg commit -m "merge"
Create a fake head, make sure tag not visible afterwards:
$ cp .hgtags tags
$ hg tag last
$ hg rm .hgtags
$ hg commit -m "remove"
$ mv tags .hgtags
$ hg add .hgtags
$ hg commit -m "readd"
$
$ hg tags
tip 6:35ff301afafe
first 0:acb14030fe0a
Add invalid tags:
$ echo "spam" >> .hgtags
$ echo >> .hgtags
$ echo "foo bar" >> .hgtags
$ echo "a5a5 invalid" >> .hg/localtags
$ cat .hgtags
acb14030fe0a21b60322c440ad2d20cf7685a376 first
spam
foo bar
$ hg commit -m "tags"
Report tag parse error on other head:
$ hg up 3
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo 'x y' >> .hgtags
$ hg commit -m "head"
created new head
$ hg tags --debug
.hgtags@75d9f02dfe28, line 2: cannot parse entry
.hgtags@75d9f02dfe28, line 4: node 'foo' is not well formed
.hgtags@c4be69a18c11, line 2: node 'x' is not well formed
tip 8:c4be69a18c11e8bc3a5fdbb576017c25f7d84663
first 0:acb14030fe0a21b60322c440ad2d20cf7685a376
$ hg tip
changeset: 8:c4be69a18c11
tag: tip
parent: 3:ac5e980c4dc0
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: head
Test tag precedence rules:
$ cd ..
$ hg init t2
$ cd t2
$ echo foo > foo
$ hg add foo
$ hg ci -m 'add foo' # rev 0
$ hg tag bar # rev 1
$ echo >> foo
$ hg ci -m 'change foo 1' # rev 2
$ hg up -C 1
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg tag -r 1 -f bar # rev 3
$ hg up -C 1
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo >> foo
$ hg ci -m 'change foo 2' # rev 4
created new head
$ hg tags
tip 4:0c192d7d5e6b
bar 1:78391a272241
Repeat in case of cache effects:
$ hg tags
tip 4:0c192d7d5e6b
bar 1:78391a272241
Detailed dump of tag info:
$ hg heads -q # expect 4, 3, 2
4:0c192d7d5e6b
3:6fa450212aeb
2:7a94127795a3
$ dumptags 2
rev 2: .hgtags:
bbd179dfa0a71671c253b3ae0aa1513b60d199fa bar
$ dumptags 3
rev 3: .hgtags:
bbd179dfa0a71671c253b3ae0aa1513b60d199fa bar
bbd179dfa0a71671c253b3ae0aa1513b60d199fa bar
78391a272241d70354aa14c874552cad6b51bb42 bar
$ dumptags 4
rev 4: .hgtags:
bbd179dfa0a71671c253b3ae0aa1513b60d199fa bar
Dump cache:
$ cat .hg/cache/tags2-visible
4 0c192d7d5e6b78a714de54a2e9627952a877e25a
bbd179dfa0a71671c253b3ae0aa1513b60d199fa bar
bbd179dfa0a71671c253b3ae0aa1513b60d199fa bar
78391a272241d70354aa14c874552cad6b51bb42 bar
$ f --size --hexdump .hg/cache/hgtagsfnodes1
.hg/cache/hgtagsfnodes1: size=120
0000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
0010: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
0020: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
0030: 7a 94 12 77 0c 04 f2 a8 af 31 de 17 fa b7 42 28 |z..w.....1....B(|
0040: 78 ee 5a 2d ad bc 94 3d 6f a4 50 21 7d 3b 71 8c |x.Z-...=o.P!};q.|
0050: 96 4e f3 7b 89 e5 50 eb da fd 57 89 e7 6c e1 b0 |.N.{..P...W..l..|
0060: 0c 19 2d 7d 0c 04 f2 a8 af 31 de 17 fa b7 42 28 |..-}.....1....B(|
0070: 78 ee 5a 2d ad bc 94 3d |x.Z-...=|
Corrupt the .hgtags fnodes cache
Extra junk data at the end should get overwritten on next cache update
$ echo extra >> .hg/cache/hgtagsfnodes1
$ echo dummy1 > foo
$ hg commit -m throwaway1
$ hg tags
tip 5:8dbfe60eff30
bar 1:78391a272241
$ hg blackbox -l 6
1970-01-01 00:00:00.000 bob @8dbfe60eff306a54259cfe007db9e330e7ecf866 (5000)> tags
1970-01-01 00:00:00.000 bob @8dbfe60eff306a54259cfe007db9e330e7ecf866 (5000)> writing 24 bytes to cache/hgtagsfnodes1
1970-01-01 00:00:00.000 bob @8dbfe60eff306a54259cfe007db9e330e7ecf866 (5000)> 3/4 cache hits/lookups in * seconds (glob)
1970-01-01 00:00:00.000 bob @8dbfe60eff306a54259cfe007db9e330e7ecf866 (5000)> writing .hg/cache/tags2-visible with 1 tags
1970-01-01 00:00:00.000 bob @8dbfe60eff306a54259cfe007db9e330e7ecf866 (5000)> tags exited 0 after * seconds (glob)
1970-01-01 00:00:00.000 bob @8dbfe60eff306a54259cfe007db9e330e7ecf866 (5000)> blackbox -l 6
On junk data + missing cache entries, hg also overwrites the junk.
$ rm -f .hg/cache/tags2-visible
>>> import os
>>> with open(".hg/cache/hgtagsfnodes1", "ab+") as fp:
... fp.seek(-10, os.SEEK_END) and None
... fp.truncate() and None
$ hg debugtagscache | tail -2
4 0c192d7d5e6b78a714de54a2e9627952a877e25a 0c04f2a8af31de17fab7422878ee5a2dadbc943d
5 8dbfe60eff306a54259cfe007db9e330e7ecf866 missing
$ hg tags
tip 5:8dbfe60eff30
bar 1:78391a272241
$ hg debugtagscache | tail -2
4 0c192d7d5e6b78a714de54a2e9627952a877e25a 0c04f2a8af31de17fab7422878ee5a2dadbc943d
5 8dbfe60eff306a54259cfe007db9e330e7ecf866 0c04f2a8af31de17fab7422878ee5a2dadbc943d
If the 4 bytes of node hash for a record don't match an existing node, the entry
is flagged as invalid.
>>> import os
>>> with open(".hg/cache/hgtagsfnodes1", "rb+") as fp:
... fp.seek(-24, os.SEEK_END) and None
... fp.write(b'\xde\xad') and None
$ f --size --hexdump .hg/cache/hgtagsfnodes1
.hg/cache/hgtagsfnodes1: size=144
0000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
0010: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
0020: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
0030: 7a 94 12 77 0c 04 f2 a8 af 31 de 17 fa b7 42 28 |z..w.....1....B(|
0040: 78 ee 5a 2d ad bc 94 3d 6f a4 50 21 7d 3b 71 8c |x.Z-...=o.P!};q.|
0050: 96 4e f3 7b 89 e5 50 eb da fd 57 89 e7 6c e1 b0 |.N.{..P...W..l..|
0060: 0c 19 2d 7d 0c 04 f2 a8 af 31 de 17 fa b7 42 28 |..-}.....1....B(|
0070: 78 ee 5a 2d ad bc 94 3d de ad e6 0e 0c 04 f2 a8 |x.Z-...=........|
0080: af 31 de 17 fa b7 42 28 78 ee 5a 2d ad bc 94 3d |.1....B(x.Z-...=|
$ hg debugtagscache | tail -2
4 0c192d7d5e6b78a714de54a2e9627952a877e25a 0c04f2a8af31de17fab7422878ee5a2dadbc943d
5 8dbfe60eff306a54259cfe007db9e330e7ecf866 invalid
$ hg tags
tip 5:8dbfe60eff30
bar 1:78391a272241
BUG: If the filenode part of an entry in hgtagsfnodes is corrupt and
tags2-visible is missing, `hg tags` aborts. Corrupting the leading 4 bytes of
node hash (as above) doesn't seem to trigger the issue. Also note that the
debug command hides the corruption, both with and without tags2-visible.
$ mv .hg/cache/hgtagsfnodes1 .hg/cache/hgtagsfnodes1.bak
$ hg debugupdatecaches
>>> import os
>>> with open(".hg/cache/hgtagsfnodes1", "rb+") as fp:
... fp.seek(-16, os.SEEK_END) and None
... fp.write(b'\xde\xad') and None
$ f --size --hexdump .hg/cache/hgtagsfnodes1
.hg/cache/hgtagsfnodes1: size=144
0000: bb d1 79 df 00 00 00 00 00 00 00 00 00 00 00 00 |..y.............|
0010: 00 00 00 00 00 00 00 00 78 39 1a 27 0c 04 f2 a8 |........x9.'....|
0020: af 31 de 17 fa b7 42 28 78 ee 5a 2d ad bc 94 3d |.1....B(x.Z-...=|
0030: 7a 94 12 77 0c 04 f2 a8 af 31 de 17 fa b7 42 28 |z..w.....1....B(|
0040: 78 ee 5a 2d ad bc 94 3d 6f a4 50 21 7d 3b 71 8c |x.Z-...=o.P!};q.|
0050: 96 4e f3 7b 89 e5 50 eb da fd 57 89 e7 6c e1 b0 |.N.{..P...W..l..|
0060: 0c 19 2d 7d 0c 04 f2 a8 af 31 de 17 fa b7 42 28 |..-}.....1....B(|
0070: 78 ee 5a 2d ad bc 94 3d 8d bf e6 0e 0c 04 f2 a8 |x.Z-...=........|
0080: de ad de 17 fa b7 42 28 78 ee 5a 2d ad bc 94 3d |......B(x.Z-...=|
$ hg debugtagscache | tail -2
4 0c192d7d5e6b78a714de54a2e9627952a877e25a 0c04f2a8af31de17fab7422878ee5a2dadbc943d
5 8dbfe60eff306a54259cfe007db9e330e7ecf866 0c04f2a8deadde17fab7422878ee5a2dadbc943d (unknown node)
$ rm -f .hg/cache/tags2-visible
$ hg debugtagscache | tail -2
4 0c192d7d5e6b78a714de54a2e9627952a877e25a 0c04f2a8af31de17fab7422878ee5a2dadbc943d
5 8dbfe60eff306a54259cfe007db9e330e7ecf866 0c04f2a8deadde17fab7422878ee5a2dadbc943d (unknown node)
$ hg tags
tip 5:8dbfe60eff30
bar 1:78391a272241
BUG: Unless this file is restored, the `hg tags` in the next unix-permissions
conditional will fail: "abort: data/.hgtags.i@0c04f2a8dead: no match found"
$ mv .hg/cache/hgtagsfnodes1.bak .hg/cache/hgtagsfnodes1
#if unix-permissions no-root
Errors writing to .hgtags fnodes cache are silently ignored
$ echo dummy2 > foo
$ hg commit -m throwaway2
$ chmod a-w .hg/cache/hgtagsfnodes1
$ rm -f .hg/cache/tags2-visible
$ hg tags
tip 6:b968051b5cf3
bar 1:78391a272241
$ hg blackbox -l 6
1970-01-01 00:00:00.000 bob @b968051b5cf3f624b771779c6d5f84f1d4c3fb5d (5000)> tags
1970-01-01 00:00:00.000 bob @b968051b5cf3f624b771779c6d5f84f1d4c3fb5d (5000)> couldn't write cache/hgtagsfnodes1: [Errno *] * (glob)
1970-01-01 00:00:00.000 bob @b968051b5cf3f624b771779c6d5f84f1d4c3fb5d (5000)> 2/4 cache hits/lookups in * seconds (glob)
1970-01-01 00:00:00.000 bob @b968051b5cf3f624b771779c6d5f84f1d4c3fb5d (5000)> writing .hg/cache/tags2-visible with 1 tags
1970-01-01 00:00:00.000 bob @b968051b5cf3f624b771779c6d5f84f1d4c3fb5d (5000)> tags exited 0 after * seconds (glob)
1970-01-01 00:00:00.000 bob @b968051b5cf3f624b771779c6d5f84f1d4c3fb5d (5000)> blackbox -l 6
$ chmod a+w .hg/cache/hgtagsfnodes1
$ rm -f .hg/cache/tags2-visible
$ hg tags
tip 6:b968051b5cf3
bar 1:78391a272241
$ hg blackbox -l 6
1970-01-01 00:00:00.000 bob @b968051b5cf3f624b771779c6d5f84f1d4c3fb5d (5000)> tags
1970-01-01 00:00:00.000 bob @b968051b5cf3f624b771779c6d5f84f1d4c3fb5d (5000)> writing 24 bytes to cache/hgtagsfnodes1
1970-01-01 00:00:00.000 bob @b968051b5cf3f624b771779c6d5f84f1d4c3fb5d (5000)> 2/4 cache hits/lookups in * seconds (glob)
1970-01-01 00:00:00.000 bob @b968051b5cf3f624b771779c6d5f84f1d4c3fb5d (5000)> writing .hg/cache/tags2-visible with 1 tags
1970-01-01 00:00:00.000 bob @b968051b5cf3f624b771779c6d5f84f1d4c3fb5d (5000)> tags exited 0 after * seconds (glob)
1970-01-01 00:00:00.000 bob @b968051b5cf3f624b771779c6d5f84f1d4c3fb5d (5000)> blackbox -l 6
$ f --size .hg/cache/hgtagsfnodes1
.hg/cache/hgtagsfnodes1: size=168
$ hg -q --config extensions.strip= strip -r 6 --no-backup
#endif
Stripping doesn't truncate the tags cache until new data is available
$ rm -f .hg/cache/hgtagsfnodes1 .hg/cache/tags2-visible
$ hg tags
tip 5:8dbfe60eff30
bar 1:78391a272241
$ f --size .hg/cache/hgtagsfnodes1
.hg/cache/hgtagsfnodes1: size=144
$ hg -q --config extensions.strip= strip -r 5 --no-backup
$ hg tags
tip 4:0c192d7d5e6b
bar 1:78391a272241
$ hg blackbox -l 5
1970-01-01 00:00:00.000 bob @0c192d7d5e6b78a714de54a2e9627952a877e25a (5000)> writing 24 bytes to cache/hgtagsfnodes1
1970-01-01 00:00:00.000 bob @0c192d7d5e6b78a714de54a2e9627952a877e25a (5000)> 2/4 cache hits/lookups in * seconds (glob)
1970-01-01 00:00:00.000 bob @0c192d7d5e6b78a714de54a2e9627952a877e25a (5000)> writing .hg/cache/tags2-visible with 1 tags
1970-01-01 00:00:00.000 bob @0c192d7d5e6b78a714de54a2e9627952a877e25a (5000)> tags exited 0 after * seconds (glob)
1970-01-01 00:00:00.000 bob @0c192d7d5e6b78a714de54a2e9627952a877e25a (5000)> blackbox -l 5
$ f --size .hg/cache/hgtagsfnodes1
.hg/cache/hgtagsfnodes1: size=120
$ echo dummy > foo
$ hg commit -m throwaway3
$ hg tags
tip 5:035f65efb448
bar 1:78391a272241
$ hg blackbox -l 6
1970-01-01 00:00:00.000 bob @035f65efb448350f4772141702a81ab1df48c465 (5000)> tags
1970-01-01 00:00:00.000 bob @035f65efb448350f4772141702a81ab1df48c465 (5000)> writing 24 bytes to cache/hgtagsfnodes1
1970-01-01 00:00:00.000 bob @035f65efb448350f4772141702a81ab1df48c465 (5000)> 3/4 cache hits/lookups in * seconds (glob)
1970-01-01 00:00:00.000 bob @035f65efb448350f4772141702a81ab1df48c465 (5000)> writing .hg/cache/tags2-visible with 1 tags
1970-01-01 00:00:00.000 bob @035f65efb448350f4772141702a81ab1df48c465 (5000)> tags exited 0 after * seconds (glob)
1970-01-01 00:00:00.000 bob @035f65efb448350f4772141702a81ab1df48c465 (5000)> blackbox -l 6
$ f --size .hg/cache/hgtagsfnodes1
.hg/cache/hgtagsfnodes1: size=144
$ hg -q --config extensions.strip= strip -r 5 --no-backup
Test tag removal:
$ hg tag --remove bar # rev 5
$ hg tip -vp
changeset: 5:5f6e8655b1c7
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
files: .hgtags
description:
Removed tag bar
diff -r 0c192d7d5e6b -r 5f6e8655b1c7 .hgtags
--- a/.hgtags Thu Jan 01 00:00:00 1970 +0000
+++ b/.hgtags Thu Jan 01 00:00:00 1970 +0000
@@ -1,1 +1,3 @@
bbd179dfa0a71671c253b3ae0aa1513b60d199fa bar
+78391a272241d70354aa14c874552cad6b51bb42 bar
+0000000000000000000000000000000000000000 bar
$ hg tags
tip 5:5f6e8655b1c7
$ hg tags # again, try to expose cache bugs
tip 5:5f6e8655b1c7
Remove nonexistent tag:
$ hg tag --remove foobar
abort: tag 'foobar' does not exist
[10]
$ hg tip
changeset: 5:5f6e8655b1c7
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: Removed tag bar
Undo a tag with rollback:
$ hg rollback # destroy rev 5 (restore bar)
repository tip rolled back to revision 4 (undo commit)
working directory now based on revision 4
$ hg tags
tip 4:0c192d7d5e6b
bar 1:78391a272241
$ hg tags
tip 4:0c192d7d5e6b
bar 1:78391a272241
Test tag rank:
$ cd ..
$ hg init t3
$ cd t3
$ echo foo > foo
$ hg add foo
$ hg ci -m 'add foo' # rev 0
$ hg tag -f bar # rev 1 bar -> 0
$ hg tag -f bar # rev 2 bar -> 1
$ hg tag -fr 0 bar # rev 3 bar -> 0
$ hg tag -fr 1 bar # rev 4 bar -> 1
$ hg tag -fr 0 bar # rev 5 bar -> 0
$ hg tags
tip 5:85f05169d91d
bar 0:bbd179dfa0a7
$ hg co 3
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo barbar > foo
$ hg ci -m 'change foo' # rev 6
created new head
$ hg tags
tip 6:735c3ca72986
bar 0:bbd179dfa0a7
Don't allow moving tag without -f:
$ hg tag -r 3 bar
abort: tag 'bar' already exists (use -f to force)
[10]
$ hg tags
tip 6:735c3ca72986
bar 0:bbd179dfa0a7
Strip 1: expose an old head:
$ hg --config extensions.mq= strip 5
saved backup bundle to $TESTTMP/t3/.hg/strip-backup/*-backup.hg (glob)
$ hg tags # partly stale cache
tip 5:735c3ca72986
bar 1:78391a272241
$ hg tags # up-to-date cache
tip 5:735c3ca72986
bar 1:78391a272241
Strip 2: destroy whole branch, no old head exposed
$ hg --config extensions.mq= strip 4
saved backup bundle to $TESTTMP/t3/.hg/strip-backup/*-backup.hg (glob)
$ hg tags # partly stale
tip 4:735c3ca72986
bar 0:bbd179dfa0a7
$ rm -f .hg/cache/tags2-visible
$ hg tags # cold cache
tip 4:735c3ca72986
bar 0:bbd179dfa0a7
Test tag rank with 3 heads:
$ cd ..
$ hg init t4
$ cd t4
$ echo foo > foo
$ hg add
adding foo
$ hg ci -m 'add foo' # rev 0
$ hg tag bar # rev 1 bar -> 0
$ hg tag -f bar # rev 2 bar -> 1
$ hg up -qC 0
$ hg tag -fr 2 bar # rev 3 bar -> 2
$ hg tags
tip 3:197c21bbbf2c
bar 2:6fa450212aeb
$ hg up -qC 0
$ hg tag -m 'retag rev 0' -fr 0 bar # rev 4 bar -> 0, but bar stays at 2
Bar should still point to rev 2:
$ hg tags
tip 4:3b4b14ed0202
bar 2:6fa450212aeb
Test that removing global/local tags does not get confused when trying
to remove a tag of type X which actually only exists as a type Y:
$ cd ..
$ hg init t5
$ cd t5
$ echo foo > foo
$ hg add
adding foo
$ hg ci -m 'add foo' # rev 0
$ hg tag -r 0 -l localtag
$ hg tag --remove localtag
abort: tag 'localtag' is not a global tag
[10]
$
$ hg tag -r 0 globaltag
$ hg tag --remove -l globaltag
abort: tag 'globaltag' is not a local tag
[10]
$ hg tags -v
tip 1:a0b6fe111088
localtag 0:bbd179dfa0a7 local
globaltag 0:bbd179dfa0a7
Templated output:
(immediate values)
$ hg tags -T '{pad(tag, 9)} {rev}:{node} ({type})\n'
tip 1:a0b6fe111088c8c29567d3876cc466aa02927cae ()
localtag 0:bbd179dfa0a71671c253b3ae0aa1513b60d199fa (local)
globaltag 0:bbd179dfa0a71671c253b3ae0aa1513b60d199fa ()
(ctx/revcache dependent)
$ hg tags -T '{pad(tag, 9)} {rev} {file_adds}\n'
tip 1 .hgtags
localtag 0 foo
globaltag 0 foo
$ hg tags -T '{pad(tag, 9)} {rev}:{node|shortest}\n'
tip 1:a0b6
localtag 0:bbd1
globaltag 0:bbd1
Test for issue3911
$ hg tag -r 0 -l localtag2
$ hg tag -l --remove localtag2
$ hg tags -v
tip 1:a0b6fe111088
localtag 0:bbd179dfa0a7 local
globaltag 0:bbd179dfa0a7
$ hg tag -r 1 -f localtag
$ hg tags -v
tip 2:5c70a037bb37
localtag 1:a0b6fe111088
globaltag 0:bbd179dfa0a7
$ hg tags -v
tip 2:5c70a037bb37
localtag 1:a0b6fe111088
globaltag 0:bbd179dfa0a7
$ hg tag -r 1 localtag2
$ hg tags -v
tip 3:bbfb8cd42be2
localtag2 1:a0b6fe111088
localtag 1:a0b6fe111088
globaltag 0:bbd179dfa0a7
$ hg tags -v
tip 3:bbfb8cd42be2
localtag2 1:a0b6fe111088
localtag 1:a0b6fe111088
globaltag 0:bbd179dfa0a7
$ cd ..
Create a repository with tags data to test .hgtags fnodes transfer
$ hg init tagsserver
$ cd tagsserver
$ touch foo
$ hg -q commit -A -m initial
$ hg tag -m 'tag 0.1' 0.1
$ echo second > foo
$ hg commit -m second
$ hg tag -m 'tag 0.2' 0.2
$ hg tags
tip 3:40f0358cb314
0.2 2:f63cc8fe54e4
0.1 0:96ee1d7354c4
$ cd ..
Cloning should pull down hgtags fnodes mappings and write the cache file
$ hg clone --pull tagsserver tagsclient
requesting all changes
adding changesets
adding manifests
adding file changes
added 4 changesets with 4 changes to 2 files
new changesets 96ee1d7354c4:40f0358cb314
updating to branch default
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
Missing tags2* files means the cache wasn't written through the normal mechanism.
$ ls tagsclient/.hg/cache
branch2-base
branch2-immutable
branch2-served
branch2-served.hidden
branch2-visible
branch2-visible-hidden
hgtagsfnodes1
rbc-names-v1
rbc-revs-v1
tags2
tags2-served
Cache should contain the head only, even though other nodes have tags data
$ f --size --hexdump tagsclient/.hg/cache/hgtagsfnodes1
tagsclient/.hg/cache/hgtagsfnodes1: size=96
0000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
0010: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
0020: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
0030: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
0040: ff ff ff ff ff ff ff ff 40 f0 35 8c 19 e0 a7 d3 |........@.5.....|
0050: 8a 5c 6a 82 4d cf fb a5 87 d0 2f a3 1e 4f 2f 8a |.\j.M...../..O/.|
Running hg tags should produce tags2* file and not change cache
$ hg -R tagsclient tags
tip 3:40f0358cb314
0.2 2:f63cc8fe54e4
0.1 0:96ee1d7354c4
$ ls tagsclient/.hg/cache
branch2-base
branch2-immutable
branch2-served
branch2-served.hidden
branch2-visible
branch2-visible-hidden
hgtagsfnodes1
rbc-names-v1
rbc-revs-v1
tags2
tags2-served
tags2-visible
$ f --size --hexdump tagsclient/.hg/cache/hgtagsfnodes1
tagsclient/.hg/cache/hgtagsfnodes1: size=96
0000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
0010: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
0020: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
0030: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
0040: ff ff ff ff ff ff ff ff 40 f0 35 8c 19 e0 a7 d3 |........@.5.....|
0050: 8a 5c 6a 82 4d cf fb a5 87 d0 2f a3 1e 4f 2f 8a |.\j.M...../..O/.|
Check that the bundle includes cache data
$ hg -R tagsclient bundle --all ./test-cache-in-bundle-all-rev.hg
4 changesets found
$ hg debugbundle ./test-cache-in-bundle-all-rev.hg
Stream params: {Compression: BZ}
changegroup -- {nbchanges: 4, version: 02} (mandatory: True)
96ee1d7354c4ad7372047672c36a1f561e3a6a4c
c4dab0c2fd337eb9191f80c3024830a4889a8f34
f63cc8fe54e4d326f8d692805d70e092f851ddb1
40f0358cb314c824a5929ee527308d90e023bc10
hgtagsfnodes -- {} (mandatory: True)
cache:rev-branch-cache -- {} (mandatory: False)
Check that local clone includes cache data
$ hg clone tagsclient tags-local-clone
updating to branch default
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ (cd tags-local-clone/.hg/cache/; ls -1 tag*)
tags2
tags2-served
tags2-visible
Avoid writing logs on trying to delete an already deleted tag
$ hg init issue5752
$ cd issue5752
$ echo > a
$ hg commit -Am 'add a'
adding a
$ hg tag a
$ hg tags
tip 1:bd7ee4f3939b
a 0:a8a82d372bb3
$ hg log
changeset: 1:bd7ee4f3939b
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: Added tag a for changeset a8a82d372bb3
changeset: 0:a8a82d372bb3
tag: a
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: add a
$ hg tag --remove a
$ hg log
changeset: 2:e7feacc7ec9e
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: Removed tag a
changeset: 1:bd7ee4f3939b
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: Added tag a for changeset a8a82d372bb3
changeset: 0:a8a82d372bb3
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: add a
$ hg tag --remove a
abort: tag 'a' is already removed
[10]
$ hg log
changeset: 2:e7feacc7ec9e
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: Removed tag a
changeset: 1:bd7ee4f3939b
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: Added tag a for changeset a8a82d372bb3
changeset: 0:a8a82d372bb3
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: add a
$ cat .hgtags
a8a82d372bb35b42ff736e74f07c23bcd99c371f a
a8a82d372bb35b42ff736e74f07c23bcd99c371f a
0000000000000000000000000000000000000000 a
$ cd ..
.hgtags fnode should be properly resolved at merge revision (issue6673)
$ hg init issue6673
$ cd issue6673
$ touch a
$ hg ci -qAm a
$ hg branch -q stable
$ hg ci -m branch
$ hg up -q default
$ hg merge -q stable
$ hg ci -m merge
add tag to stable branch:
$ hg up -q stable
$ echo a >> a
$ hg ci -m a
$ hg tag whatever
$ hg log -GT'{rev} {tags}\n'
@ 4 tip
|
o 3 whatever
|
| o 2
|/|
o | 1
|/
o 0
merge tagged stable into default:
$ hg up -q default
$ hg merge -q stable
$ hg ci -m merge
$ hg log -GT'{rev} {tags}\n'
@ 5 tip
|\
| o 4
| |
| o 3 whatever
| |
o | 2
|\|
| o 1
|/
o 0
$ cd ..