upstream/mercurial-mirror Files · tests/test-merge-closedheads.t

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 $ hg bisect --noupdate --good 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

Kyle Lippincott - - Load All Authors

File last commit:

r43384:8197b395 default


                r50337:81623652

default

Download file

             test-merge-closedheads.t
        
                    87 lines
            
             | 2.3 KiB
            
                | text/troff
            
             |
                Tads3Lexer
            
             / tests / test-merge-closedheads.t
          
                    History
                
                 |
                  Annotation
                 | Raw
                 |Copy content
                 |Copy permalink

        $ hgcommit() {

        >    hg commit -u user "$@"

        > }

        $ hg init clhead

        $ cd clhead

        $ touch foo && hg add && hgcommit -m 'foo'

        adding foo

        $ touch bar && hg add && hgcommit -m 'bar'

        adding bar

        $ touch baz && hg add && hgcommit -m 'baz'

        adding baz

        $ echo "flub" > foo

        $ hgcommit -m "flub"

        $ echo "nub" > foo

        $ hgcommit -m "nub"

        $ hg up -C 2

        1 files updated, 0 files merged, 0 files removed, 0 files unresolved

        $ echo "c1" > c1

        $ hg add c1

        $ hgcommit -m "c1"

        created new head

        $ echo "c2" > c1

        $ hgcommit -m "c2"

        $ hg up -C 2

        0 files updated, 0 files merged, 1 files removed, 0 files unresolved

        $ echo "d1" > d1

        $ hg add d1

        $ hgcommit -m "d1"

        created new head

        $ echo "d2" > d1

        $ hgcommit -m "d2"

        $ hg tag -l good

      fail with three heads

        $ hg up -C good

        0 files updated, 0 files merged, 0 files removed, 0 files unresolved

        $ hg merge

        abort: branch 'default' has 3 heads - please merge with an explicit rev

        (run 'hg heads .' to see heads, specify rev with -r)

        [255]

      close one of the heads

        $ hg up -C 6

        1 files updated, 0 files merged, 1 files removed, 0 files unresolved

        $ hgcommit -m 'close this head' --close-branch

      succeed with two open heads

        $ hg up -C good

        1 files updated, 0 files merged, 1 files removed, 0 files unresolved

        $ hg up -C good

        0 files updated, 0 files merged, 0 files removed, 0 files unresolved

        $ hg merge

        1 files updated, 0 files merged, 0 files removed, 0 files unresolved

        (branch merge, don't forget to commit)

        $ hgcommit -m 'merged heads'

      hg update -C 8

        $ hg update -C 8

        1 files updated, 0 files merged, 0 files removed, 0 files unresolved

      hg branch some-branch

        $ hg branch some-branch

        marked working directory as branch some-branch

        (branches are permanent and global, did you want a bookmark?)

      hg commit

        $ hgcommit -m 'started some-branch'

      hg commit --close-branch

        $ hgcommit --close-branch -m 'closed some-branch'

      hg update default

        $ hg update default

        1 files updated, 0 files merged, 0 files removed, 0 files unresolved

      hg merge some-branch

        $ hg merge some-branch

        0 files updated, 0 files merged, 0 files removed, 0 files unresolved

        (branch merge, don't forget to commit)

      hg commit (no reopening of some-branch)

        $ hgcommit -m 'merge with closed branch'

        $ cd ..

	Site-wide shortcuts
/	Use quick search box
g h	Goto home page
g g	Goto my private gists page
g G	Goto my public gists page
g 0-9	Goto bookmarked items from 0-9
n r	New repository page
n g	New gist page

	Repositories
g s	Goto summary page
g c	Goto changelog page
g f	Goto files page
g F	Goto files page with file search activated
g p	Goto pull requests page
g o	Goto repository settings
g O	Goto repository access permissions settings
t s	Toggle sidebar on some pages

				$ hgcommit() {
				> hg commit -u user "$@"
				> }

				$ hg init clhead
				$ cd clhead

				$ touch foo && hg add && hgcommit -m 'foo'
				adding foo
				$ touch bar && hg add && hgcommit -m 'bar'
				adding bar
				$ touch baz && hg add && hgcommit -m 'baz'
				adding baz

				$ echo "flub" > foo
				$ hgcommit -m "flub"
				$ echo "nub" > foo
				$ hgcommit -m "nub"

				$ hg up -C 2
				1 files updated, 0 files merged, 0 files removed, 0 files unresolved

				$ echo "c1" > c1
				$ hg add c1
				$ hgcommit -m "c1"
				created new head
				$ echo "c2" > c1
				$ hgcommit -m "c2"

				$ hg up -C 2
				0 files updated, 0 files merged, 1 files removed, 0 files unresolved

				$ echo "d1" > d1
				$ hg add d1
				$ hgcommit -m "d1"
				created new head
				$ echo "d2" > d1
				$ hgcommit -m "d2"
				$ hg tag -l good

				fail with three heads
				$ hg up -C good
				0 files updated, 0 files merged, 0 files removed, 0 files unresolved
				$ hg merge
				abort: branch 'default' has 3 heads - please merge with an explicit rev
				(run 'hg heads .' to see heads, specify rev with -r)
				[255]

				close one of the heads
				$ hg up -C 6
				1 files updated, 0 files merged, 1 files removed, 0 files unresolved
				$ hgcommit -m 'close this head' --close-branch

				succeed with two open heads
				$ hg up -C good
				1 files updated, 0 files merged, 1 files removed, 0 files unresolved
				$ hg up -C good
				0 files updated, 0 files merged, 0 files removed, 0 files unresolved
				$ hg merge
				1 files updated, 0 files merged, 0 files removed, 0 files unresolved
				(branch merge, don't forget to commit)
				$ hgcommit -m 'merged heads'

				hg update -C 8
				$ hg update -C 8
				1 files updated, 0 files merged, 0 files removed, 0 files unresolved

				hg branch some-branch
				$ hg branch some-branch
				marked working directory as branch some-branch
				(branches are permanent and global, did you want a bookmark?)
				hg commit
				$ hgcommit -m 'started some-branch'
				hg commit --close-branch
				$ hgcommit --close-branch -m 'closed some-branch'

				hg update default
				$ hg update default
				1 files updated, 0 files merged, 0 files removed, 0 files unresolved
				hg merge some-branch
				$ hg merge some-branch
				0 files updated, 0 files merged, 0 files removed, 0 files unresolved
				(branch merge, don't forget to commit)
				hg commit (no reopening of some-branch)
				$ hgcommit -m 'merge with closed branch'

				$ cd ..