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bisect: avoid adding irrelevant revisions to bisect state...
bisect: avoid adding irrelevant revisions to bisect state When adding new revisions to the bisect state, it only makes sense to add information about revisions that are under consideration (i.e., those that are topologically between the known good and bad revisions). However, if the user passes in a revset (e.g., '!merge()' to exclude merge commits), hg will resolve the revset first and add all matching revisions to the bisect state (which in this case would likely be the majority of revisions in the repo). To avoid this, revisions should only be added to the bisect state if they are between the good and bad revisions (and therefore relevant to the bisection). -- Here are the results of some performance tests using the `mozilla-central` repo (since it is one of the largest freely-available hg repositories in the wild). These tests compare the performance of a locally-built `hg` before and after application of this series. Note that `--noupdate` is passed to avoid including update time (which should not vary across cases). Setup (run between each test): $ hg bisect --reset $ hg bisect --noupdate --bad 56c3ad4bde5c70714b784ccf15d099e0df0f5bde $ hg bisect --noupdate --good 57426696adaf08298af3027fa77486fee0633b13 Test using a revset that returns a very large number of revisions: $ time hg bisect --noupdate --skip '!merge()' > /dev/null Before: real 0m9.398s user 0m9.233s sys 0m0.120s After: real 0m1.513s user 0m1.425s sys 0m0.052s Test using a revset that is expensive to compute: $ time hg bisect --noupdate --skip 'desc("Bug")' > /dev/null Before: real 0m49.853s user 0m49.580s sys 0m0.243s After: real 0m4.120s user 0m4.036s sys 0m0.048s
Mads Kiilerich - - Load All Authors

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test-convert-splicemap.t
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$ echo "[extensions]" >> $HGRCPATH
$ echo "convert=" >> $HGRCPATH
$ glog()
> {
> hg log -G --template '{rev}:{node|short} "{desc|firstline}"\
> files: {files}\n' "$@"
> }
$ hg init repo1
$ cd repo1
$ echo a > a
$ hg ci -Am adda
adding a
$ echo b > b
$ echo a >> a
$ hg ci -Am addb
adding b
$ PARENTID1=`hg id --debug -i`
$ echo c > c
$ hg ci -Am addc
adding c
$ PARENTID2=`hg id --debug -i`
$ cd ..
$ glog -R repo1
@ 2:e55c719b85b6 "addc" files: c
|
o 1:6d4c2037ddc2 "addb" files: a b
|
o 0:07f494440405 "adda" files: a
$ hg init repo2
$ cd repo2
$ echo b > a
$ echo d > d
$ hg ci -Am addaandd
adding a
adding d
$ INVALIDID1=afd12345af
$ INVALIDID2=28173x36ddd1e67bf7098d541130558ef5534a86
$ CHILDID1=`hg id --debug -i`
$ echo d >> d
$ hg ci -Am changed
$ CHILDID2=`hg id --debug -i`
$ echo e > e
$ hg ci -Am adde
adding e
$ cd ..
$ glog -R repo2
@ 2:a39b65753b0a "adde" files: e
|
o 1:e4ea00df9189 "changed" files: d
|
o 0:527cdedf31fb "addaandd" files: a d
test invalid splicemap1
$ cat > splicemap <<EOF
> $CHILDID2
> EOF
$ hg convert --splicemap splicemap repo2 repo1
abort: syntax error in splicemap(1): child parent1[,parent2] expected
[255]
test invalid splicemap2
$ cat > splicemap <<EOF
> $CHILDID2 $PARENTID1, $PARENTID2, $PARENTID2
> EOF
$ hg convert --splicemap splicemap repo2 repo1
abort: syntax error in splicemap(1): child parent1[,parent2] expected
[255]
test invalid splicemap3
$ cat > splicemap <<EOF
> $INVALIDID1 $INVALIDID2
> EOF
$ hg convert --splicemap splicemap repo2 repo1
abort: splicemap entry afd12345af is not a valid revision identifier
[255]
splice repo2 on repo1
$ cat > splicemap <<EOF
> $CHILDID1 $PARENTID1
> $CHILDID2 $PARENTID2,$CHILDID1
>
> EOF
$ cat splicemap
527cdedf31fbd5ea708aa14eeecf53d4676f38db 6d4c2037ddc2cb2627ac3a244ecce35283268f8e
e4ea00df91897da3079a10fab658c1eddba6617b e55c719b85b60e5102fac26110ba626e7cb6b7dc,527cdedf31fbd5ea708aa14eeecf53d4676f38db
$ hg clone repo1 target1
updating to branch default
3 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg convert --splicemap splicemap repo2 target1
scanning source...
sorting...
converting...
2 addaandd
spliced in 6d4c2037ddc2cb2627ac3a244ecce35283268f8e as parents of 527cdedf31fbd5ea708aa14eeecf53d4676f38db
1 changed
spliced in e55c719b85b60e5102fac26110ba626e7cb6b7dc and 527cdedf31fbd5ea708aa14eeecf53d4676f38db as parents of e4ea00df91897da3079a10fab658c1eddba6617b
0 adde
$ glog -R target1
o 5:16bc847b02aa "adde" files: e
|
o 4:e30e4fee3418 "changed" files: d
|\
| o 3:e673348c3a3c "addaandd" files: a d
| |
@ | 2:e55c719b85b6 "addc" files: c
|/
o 1:6d4c2037ddc2 "addb" files: a b
|
o 0:07f494440405 "adda" files: a
Test splicemap and conversion order
$ hg init ordered
$ cd ordered
$ echo a > a
$ hg ci -Am adda
adding a
$ hg branch branch
marked working directory as branch branch
(branches are permanent and global, did you want a bookmark?)
$ echo a >> a
$ hg ci -Am changea
$ echo a >> a
$ hg ci -Am changeaagain
$ hg up 0
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo b > b
$ hg ci -Am addb
adding b
We want 2 to depend on 1 and 3. Since 3 is always converted after 2,
the bug should be exhibited with all conversion orders.
$ cat > ../splicemap <<EOF
> `(hg id -r 2 -i --debug)` `(hg id -r 1 -i --debug)`, `(hg id -r 3 -i --debug)`
> EOF
$ cd ..
$ cat splicemap
7c364e7fa7d70ae525610c016317ed717b519d97 717d54d67e6c31fd75ffef2ff3042bdd98418437, 102a90ea7b4a3361e4082ed620918c261189a36a
Test regular conversion
$ hg convert --splicemap splicemap ordered ordered-hg1
initializing destination ordered-hg1 repository
scanning source...
sorting...
converting...
3 adda
2 changea
1 addb
0 changeaagain
spliced in 717d54d67e6c31fd75ffef2ff3042bdd98418437 and 102a90ea7b4a3361e4082ed620918c261189a36a as parents of 7c364e7fa7d70ae525610c016317ed717b519d97
$ glog -R ordered-hg1
o 3:4cb04b9afbf2 "changeaagain" files: a
|\
| o 2:102a90ea7b4a "addb" files: b
| |
o | 1:717d54d67e6c "changea" files: a
|/
o 0:07f494440405 "adda" files: a
Test conversion with parent revisions already in dest, using source
and destination identifiers. Test unknown splicemap target.
$ hg convert -r1 ordered ordered-hg2
initializing destination ordered-hg2 repository
scanning source...
sorting...
converting...
1 adda
0 changea
$ hg convert -r3 ordered ordered-hg2
scanning source...
sorting...
converting...
0 addb
$ cat > splicemap <<EOF
> `(hg -R ordered id -r 2 -i --debug)` \
> `(hg -R ordered-hg2 id -r 1 -i --debug)`,\
> `(hg -R ordered-hg2 id -r 2 -i --debug)`
> deadbeef102a90ea7b4a3361e4082ed620918c26 deadbeef102a90ea7b4a3361e4082ed620918c27
> EOF
$ hg convert --splicemap splicemap ordered ordered-hg2
scanning source...
splice map revision deadbeef102a90ea7b4a3361e4082ed620918c26 is not being converted, ignoring
sorting...
converting...
0 changeaagain
spliced in 717d54d67e6c31fd75ffef2ff3042bdd98418437 and 102a90ea7b4a3361e4082ed620918c261189a36a as parents of 7c364e7fa7d70ae525610c016317ed717b519d97
$ glog -R ordered-hg2
o 3:4cb04b9afbf2 "changeaagain" files: a
|\
| o 2:102a90ea7b4a "addb" files: b
| |
o | 1:717d54d67e6c "changea" files: a
|/
o 0:07f494440405 "adda" files: a
Test empty conversion
$ hg convert --splicemap splicemap ordered ordered-hg2
scanning source...
splice map revision deadbeef102a90ea7b4a3361e4082ed620918c26 is not being converted, ignoring
sorting...
converting...
Test clonebranches
$ hg --config convert.hg.clonebranches=true convert \
> --splicemap splicemap ordered ordered-hg3
initializing destination ordered-hg3 repository
scanning source...
abort: revision 717d54d67e6c31fd75ffef2ff3042bdd98418437 not found in destination repository (lookups with clonebranches=true are not implemented)
[255]
Test invalid dependency
$ cat > splicemap <<EOF
> `(hg -R ordered id -r 2 -i --debug)` \
> deadbeef102a90ea7b4a3361e4082ed620918c26,\
> `(hg -R ordered-hg2 id -r 2 -i --debug)`
> EOF
$ hg convert --splicemap splicemap ordered ordered-hg4
initializing destination ordered-hg4 repository
scanning source...
abort: unknown splice map parent: deadbeef102a90ea7b4a3361e4082ed620918c26
[255]