Mercurial > hg
view tests/test-drawdag.t @ 40176:41263df08109
wireprotov2: change how revisions are specified to changesetdata
Right now, we have a handful of arguments for specifying the revisions
whose data should be returned. Defining how all these arguments
interact when various combinations are present is difficult.
This commit establishes a new, generic mechanism for specifying
revisions. Instead of a hodgepodge of arguments defining things, we
have a list of dicts that specify revision selectors. The final set
of revisions is a union of all these selectors.
We implement support for specifying revisions based on:
* An explicit list of changeset revisions
* An explicit list of changeset revisions plus ancestry depth
* A DAG range between changeset roots and heads
If you squint hard enough, this problem has already been solved by
revsets. But I'm reluctant to expose revsets to the wire protocol
because that would require servers to implement a revset parser.
Plus there are security and performance implications: the set
of revision selectors needs to be narrowly and specifically tailored
for what is appropriate to be executing on a server. Perhaps there
would be a way for us to express the "parse tree" of a revset
query, for example. I'm not sure. We can explore this space another
time. For now, the new mechanism should bring sufficient flexibility
while remaining relatively simple.
The selector "types" are prefixed with "changeset" because I plan
to add manifest and file-flavored selectors as well. This will enable
us to e.g. select file revisions based on a range of changeset
revisions.
Differential Revision: https://phab.mercurial-scm.org/D4979
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Mon, 08 Oct 2018 18:17:12 -0700 |
parents | 1a09dad8b85a |
children |
line wrap: on
line source
$ cat >> $HGRCPATH<<EOF > [extensions] > drawdag=$TESTDIR/drawdag.py > [experimental] > evolution=true > EOF $ reinit () { > rm -rf .hg && hg init > } $ hg init Test what said in drawdag.py docstring $ hg debugdrawdag <<'EOS' > c d > |/ > b > | > a > EOS $ hg log -G -T '{rev} {desc} ({tags})' o 3 d (d tip) | | o 2 c (c) |/ o 1 b (b) | o 0 a (a) $ hg debugdrawdag <<'EOS' > foo bar bar foo > | / | | > ancestor(c,d) a baz > EOS $ hg log -G -T '{desc}' o foo |\ +---o bar | | | | o | baz | / +---o d | | +---o c | | o | b |/ o a $ reinit $ hg debugdrawdag <<'EOS' > o foo > |\ > +---o bar > | | | > | o | baz > | / > +---o d > | | > +---o c > | | > o | b > |/ > o a > EOS $ hg log -G -T '{desc}' o foo |\ | | o d | |/ | | o c | |/ | | o bar | |/| | o | b | |/ o / baz / o a $ reinit $ hg debugdrawdag <<'EOS' > o foo > |\ > | | o d > | |/ > | | o c > | |/ > | | o bar > | |/| > | o | b > | |/ > o / baz > / > o a > EOS $ hg log -G -T '{desc}' o foo |\ | | o d | |/ | | o c | |/ | | o bar | |/| | o | b | |/ o / baz / o a $ hg manifest -r a a $ hg manifest -r b a b $ hg manifest -r bar a b $ hg manifest -r foo a b baz Edges existed in repo are no-ops $ reinit $ hg debugdrawdag <<'EOS' > B C C > | | | > A A B > EOS $ hg log -G -T '{desc}' o C |\ | o B |/ o A $ hg debugdrawdag <<'EOS' > C D C > | | | > B B A > EOS $ hg log -G -T '{desc}' o D | | o C |/| o | B |/ o A Node with more than 2 parents are disallowed $ hg debugdrawdag <<'EOS' > A > /|\ > D B C > EOS abort: A: too many parents: C D B [255] Cycles are disallowed $ hg debugdrawdag <<'EOS' > A > | > A > EOS abort: the graph has cycles [255] $ hg debugdrawdag <<'EOS' > A > | > B > | > A > EOS abort: the graph has cycles [255] Create obsmarkers via comments $ reinit $ hg debugdrawdag <<'EOS' > G > | > I D C F # split: B -> E, F, G > \ \| | # replace: C -> D -> H > H B E # prune: F, I > \|/ > A > EOS 1 new orphan changesets $ hg log -r 'sort(all(), topo)' -G --hidden -T '{desc} {node}' * G 711f53bbef0bebd12eb6f0511d5e2e998b984846 | x F 64a8289d249234b9886244d379f15e6b650b28e3 | o E 7fb047a69f220c21711122dfd94305a9efb60cba | | x D be0ef73c17ade3fc89dc41701eb9fc3a91b58282 | | | | x C 26805aba1e600a82e93661149f2313866a221a7b | |/ | x B 112478962961147124edd43549aedd1a335e44bf |/ | x I 58e6b987bf7045fcd9c54f496396ca1d1fc81047 | | | o H 575c4b5ec114d64b681d33f8792853568bfb2b2c |/ o A 426bada5c67598ca65036d57d9e4b64b0c1ce7a0 $ hg debugobsolete 112478962961147124edd43549aedd1a335e44bf 7fb047a69f220c21711122dfd94305a9efb60cba 64a8289d249234b9886244d379f15e6b650b28e3 711f53bbef0bebd12eb6f0511d5e2e998b984846 0 (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '0', 'operation': 'split', 'user': 'test'} 26805aba1e600a82e93661149f2313866a221a7b be0ef73c17ade3fc89dc41701eb9fc3a91b58282 0 (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '9', 'operation': 'replace', 'user': 'test'} be0ef73c17ade3fc89dc41701eb9fc3a91b58282 575c4b5ec114d64b681d33f8792853568bfb2b2c 0 (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '13', 'operation': 'replace', 'user': 'test'} 64a8289d249234b9886244d379f15e6b650b28e3 0 {7fb047a69f220c21711122dfd94305a9efb60cba} (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '0', 'operation': 'prune', 'user': 'test'} 58e6b987bf7045fcd9c54f496396ca1d1fc81047 0 {575c4b5ec114d64b681d33f8792853568bfb2b2c} (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '0', 'operation': 'prune', 'user': 'test'} Change file contents via comments $ reinit $ hg debugdrawdag <<'EOS' > C # A/dir1/a = 1\n2 > |\ # B/dir2/b = 34 > A B # C/dir1/c = 5 > # C/dir2/c = 6 > # C/A = a > # C/B = b > EOS $ hg log -G -T '{desc} {files}' o C A B dir1/c dir2/c |\ | o B B dir2/b | o A A dir1/a $ for f in `hg files -r C`; do > echo FILE "$f" > hg cat -r C "$f" > echo > done FILE A a FILE B b FILE dir1/a 1 2 FILE dir1/c 5 FILE dir2/b 34 FILE dir2/c 6