tags: implement persistent tag caching (issue548).
- rename findglobaltags() to findglobaltags1() (so the "no cache"
implementation is still there if we need it)
- add findglobaltags2() and make findglobaltags() an alias for it
(disabling tag caching is a one-line patch)
- factor out tagcache class with methods readcache() and writecache();
the expensive part of tag finding (iterate over heads and find
.hgtags filenode) is now in tagcache.readcache()
% setup
no tag cache
000000000000 tip
no tag cache
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
acb14030fe0a tip
tag cache exists
% create local tag with long name
tip 0:acb14030fe0a
This is a local tag with a really long name! 0:acb14030fe0a
% create a tag behind hg's back
acb14030fe0a21b60322c440ad2d20cf7685a376 first
tip 1:b9154636be93
first 0:acb14030fe0a
b9154636be93 tip
b9154636be93 tip
% create a branch
M a
b9154636be93+ tip
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
acb14030fe0a+ first
acb14030fe0a+ first
M a
created new head
c8edf04160c7 tip
% merge the two heads
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
c8edf04160c7+b9154636be93+ tip
M .hgtags
% create fake head, make sure tag not visible afterwards
tip 6:35ff301afafe
first 0:acb14030fe0a
% add invalid tags
committing .hgtags:
acb14030fe0a21b60322c440ad2d20cf7685a376 first
spam
foo bar
% report tag parse error on other head
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
created new head
.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:c4be69a18c11
first 0:acb14030fe0a
changeset: 8:c4be69a18c11
.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
tag: tip
parent: 3:ac5e980c4dc0
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: head
% test tag precedence rules
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
created new head
tip 4:0c192d7d5e6b
bar 1:78391a272241
tip 4:0c192d7d5e6b
bar 1:78391a272241
% detailed dump of tag info
heads:
4:0c192d7d5e6b
3:6fa450212aeb
2:7a94127795a3
rev 2: .hgtags:
bbd179dfa0a71671c253b3ae0aa1513b60d199fa bar
rev 3: .hgtags:
bbd179dfa0a71671c253b3ae0aa1513b60d199fa bar
bbd179dfa0a71671c253b3ae0aa1513b60d199fa bar
78391a272241d70354aa14c874552cad6b51bb42 bar
rev 4: .hgtags:
bbd179dfa0a71671c253b3ae0aa1513b60d199fa bar
.hg/tags.cache:
4 0c192d7d5e6b78a714de54a2e9627952a877e25a 0c04f2a8af31de17fab7422878ee5a2dadbc943d
3 6fa450212aeb2a21ed616a54aea39a4a27894cd7 7d3b718c964ef37b89e550ebdafd5789e76ce1b0
2 7a94127795a33c10a370c93f731fd9fea0b79af6 0c04f2a8af31de17fab7422878ee5a2dadbc943d
% test tag removal
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
tip 5:5f6e8655b1c7
tip 5:5f6e8655b1c7
% remove nonexistent tag
abort: tag 'foobar' does not exist
changeset: 5:5f6e8655b1c7
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: Removed tag bar
% rollback undoes tag operation
rolling back last transaction
tip 4:0c192d7d5e6b
bar 1:78391a272241
tip 4:0c192d7d5e6b
bar 1:78391a272241
% test tag rank
tip 5:85f05169d91d
bar 0:bbd179dfa0a7
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
created new head
tip 6:735c3ca72986
bar 0:bbd179dfa0a7
% don't allow moving tag without -f
abort: tag 'bar' already exists (use -f to force)
tip 6:735c3ca72986
bar 0:bbd179dfa0a7
% strip 1: expose an old head
tip 5:735c3ca72986
bar 1:78391a272241
tip 5:735c3ca72986
bar 1:78391a272241
% strip 2: destroy whole branch, no old head exposed
tip 4:735c3ca72986
bar 0:bbd179dfa0a7
tip 4:735c3ca72986
bar 0:bbd179dfa0a7
% test tag rank with 3 heads
adding foo
tip 3:197c21bbbf2c
bar 2:6fa450212aeb
% bar should still point to rev 2
tip 4:3b4b14ed0202
bar 2:6fa450212aeb
% remove local as global and global as local
adding foo
abort: tag 'localtag' is not a global tag
abort: tag 'globaltag' is not a local tag
tip 1:a0b6fe111088
localtag 0:bbd179dfa0a7 local
globaltag 0:bbd179dfa0a7