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revset: disable subset optimization for parents() and children() (issue2437)...
revset: disable subset optimization for parents() and children() (issue2437) For the boolean operators, the subset optimization works by calculating the cheaper argument first, and passing the subset to the second argument to restrict the revision domain. This works well for filtering predicates. But parents() don't work like a filter: it may return revisions outside the specified set. So, combining it with boolean operators may easily yield incorrect results. For instance, for the following revision graph: 0 -- 1 the expression '0 and parents(1)' should evaluate as follows: 0 and parents(1) -> 0 and 0 -> 0 But since [0] is passed to parents() as a subset, we get instead: 0 and parents(1 and 0) -> 0 and parents([]) -> 0 and [] -> [] This also affects children(), p1() and p2(), for the same reasons. Predicates that call these (like heads()) are also affected. We work around this issue by ignoring the subset when propagating the call inside those predicates.

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test-revset.t
358 lines | 6.0 KiB | text/troff | Tads3Lexer
$ HGENCODING=utf-8
$ export HGENCODING
$ try() {
> hg debugrevspec --debug $@
> }
$ log() {
> hg log --template '{rev}\n' -r "$1"
> }
$ hg init repo
$ cd repo
$ echo a > a
$ hg branch a
marked working directory as branch a
$ hg ci -Aqm0
$ echo b > b
$ hg branch b
marked working directory as branch b
$ hg ci -Aqm1
$ rm a
$ hg branch a-b-c-
marked working directory as branch a-b-c-
$ hg ci -Aqm2 -u Bob
$ hg co 1
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg branch +a+b+c+
marked working directory as branch +a+b+c+
$ hg ci -Aqm3
$ hg co 2 # interleave
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ echo bb > b
$ hg branch -- -a-b-c-
marked working directory as branch -a-b-c-
$ hg ci -Aqm4 -d "May 12 2005"
$ hg co 3
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg branch /a/b/c/
marked working directory as branch /a/b/c/
$ hg ci -Aqm"5 bug"
$ hg merge 4
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ hg branch _a_b_c_
marked working directory as branch _a_b_c_
$ hg ci -Aqm"6 issue619"
$ hg branch .a.b.c.
marked working directory as branch .a.b.c.
$ hg ci -Aqm7
$ hg branch all
marked working directory as branch all
$ hg ci --close-branch -Aqm8
abort: can only close branch heads
[255]
$ hg co 4
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg branch é
marked working directory as branch é
$ hg ci -Aqm9
$ hg tag -r6 1.0
$ hg clone --quiet -U -r 7 . ../remote1
$ hg clone --quiet -U -r 8 . ../remote2
$ echo "[paths]" >> .hg/hgrc
$ echo "default = ../remote1" >> .hg/hgrc
names that should work without quoting
$ try a
('symbol', 'a')
0
$ try b-a
('minus', ('symbol', 'b'), ('symbol', 'a'))
1
$ try _a_b_c_
('symbol', '_a_b_c_')
6
$ try _a_b_c_-a
('minus', ('symbol', '_a_b_c_'), ('symbol', 'a'))
6
$ try .a.b.c.
('symbol', '.a.b.c.')
7
$ try .a.b.c.-a
('minus', ('symbol', '.a.b.c.'), ('symbol', 'a'))
7
$ try -- '-a-b-c-' # complains
hg: parse error at 7: not a prefix: end
[255]
$ log -a-b-c- # succeeds with fallback
4
$ try -- -a-b-c--a # complains
('minus', ('minus', ('minus', ('negate', ('symbol', 'a')), ('symbol', 'b')), ('symbol', 'c')), ('negate', ('symbol', 'a')))
abort: unknown revision '-a'!
[255]
$ try é
('symbol', '\xc3\xa9')
9
quoting needed
$ try '"-a-b-c-"-a'
('minus', ('string', '-a-b-c-'), ('symbol', 'a'))
4
$ log '1 or 2'
1
2
$ log '1|2'
1
2
$ log '1 and 2'
$ log '1&2'
$ try '1&2|3' # precedence - and is higher
('or', ('and', ('symbol', '1'), ('symbol', '2')), ('symbol', '3'))
3
$ try '1|2&3'
('or', ('symbol', '1'), ('and', ('symbol', '2'), ('symbol', '3')))
1
$ try '1&2&3' # associativity
('and', ('and', ('symbol', '1'), ('symbol', '2')), ('symbol', '3'))
$ try '1|(2|3)'
('or', ('symbol', '1'), ('group', ('or', ('symbol', '2'), ('symbol', '3'))))
1
2
3
$ log '1.0' # tag
6
$ log 'a' # branch
0
$ log '2785f51ee'
0
$ log 'date(2005)'
4
$ log 'date(this is a test)'
hg: parse error at 10: unexpected token: symbol
[255]
$ log 'date()'
hg: parse error: date requires a string
[255]
$ log 'date'
hg: parse error: can't use date here
[255]
$ log 'date('
hg: parse error at 5: not a prefix: end
[255]
$ log 'date(tip)'
abort: invalid date: 'tip'
[255]
$ log '"date"'
abort: unknown revision 'date'!
[255]
$ log 'date(2005) and 1::'
4
$ log 'ancestor(1)'
hg: parse error: ancestor requires two arguments
[255]
$ log 'ancestor(4,5)'
1
$ log 'ancestor(4,5) and 4'
$ log 'ancestors(5)'
0
1
3
5
$ log 'author(bob)'
2
$ log 'branch(é)'
8
9
$ log 'children(ancestor(4,5))'
2
3
$ log 'closed()'
$ log 'contains(a)'
0
1
3
5
$ log 'descendants(2 or 3)'
2
3
4
5
6
7
8
9
$ log 'file(b)'
1
4
$ log 'follow()'
0
1
2
4
8
9
$ log 'grep("issue\d+")'
6
$ try 'grep("(")' # invalid regular expression
('func', ('symbol', 'grep'), ('string', '('))
hg: parse error: invalid match pattern: unbalanced parenthesis
[255]
$ try 'grep("\bissue\d+")'
('func', ('symbol', 'grep'), ('string', '\x08issue\\d+'))
$ try 'grep(r"\bissue\d+")'
('func', ('symbol', 'grep'), ('string', '\\bissue\\d+'))
6
$ try 'grep(r"\")'
hg: parse error at 7: unterminated string
[255]
$ log 'head()'
0
1
2
3
4
5
6
7
9
$ log 'heads(6::)'
7
$ log 'keyword(issue)'
6
$ log 'limit(head(), 1)'
0
$ log 'max(contains(a))'
5
$ log 'min(contains(a))'
0
$ log 'merge()'
6
$ log 'modifies(b)'
4
$ log 'id(5)'
2
$ log 'outgoing()'
8
9
$ log 'outgoing("../remote1")'
8
9
$ log 'outgoing("../remote2")'
3
5
6
7
9
$ log 'p1(merge())'
5
$ log 'p2(merge())'
4
$ log 'parents(merge())'
4
5
$ log 'removes(a)'
2
6
$ log 'roots(all())'
0
$ log 'reverse(2 or 3 or 4 or 5)'
5
4
3
2
$ log 'rev(5)'
5
$ log 'sort(limit(reverse(all()), 3))'
7
8
9
$ log 'sort(2 or 3 or 4 or 5, date)'
2
3
5
4
$ log 'tagged()'
6
$ log 'tag()'
6
$ log 'tag(1.0)'
6
$ log 'tag(tip)'
9
$ log 'user(bob)'
2
$ log '4::8'
4
8
$ log '4:8'
4
5
6
7
8
$ log 'sort(!merge() & (modifies(b) | user(bob) | keyword(bug) | keyword(issue) & 1::9), "-date")'
4
2
5
$ log 'not 0 and 0:2'
1
2
$ log 'not 1 and 0:2'
0
2
$ log 'not 2 and 0:2'
0
1
$ log '(1 and 2)::'
$ log '(1 and 2):'
$ log '(1 and 2):3'
$ log 'sort(head(), -rev)'
9
7
6
5
4
3
2
1
0
$ log '4::8 - 8'
4
issue2437
$ log '3 and p1(5)'
3
$ log '4 and p2(6)'
4
$ log '1 and parents(:2)'
1
$ log '2 and children(1:)'
2
$ log 'roots(all()) or roots(all())'
0
$ log 'heads(branch(é)) or heads(branch(é))'
9
$ log 'ancestors(8) and (heads(branch("-a-b-c-")) or heads(branch(é)))'
4