tests: add tests of pathcopies()
I'm working on support for storing copy metadata in the changeset
instead of in the filelog. When storing it in the changeset, it will
obviously be efficient to get the copy metadata for all files in a
single changeset, but it will be more expensive to get the copy
metadata all revisions of a single file. Some algorithms will then
need to be optimized differently. The first method I'm going to
rewrite is pathcopies().
This commit adds many tests for pathcopies(), so we can run the tests
with both old and new versions of the code, as well as with metadata
stored in filelog or in changeset (later). They use the
debugpathcopies command I recently added (with no tests when it was
added). They show a few bugs and few cases of slightly weird
behavior. I'll fix the bugs in the next few commits.
Differential Revision: https://phab.mercurial-scm.org/D5986
=====================
Test workflow options
=====================
$ . "$TESTDIR/testlib/obsmarker-common.sh"
Test single head enforcing - Setup
=============================================
$ cat << EOF >> $HGRCPATH
> [experimental]
> evolution = all
> EOF
$ hg init single-head-server
$ cd single-head-server
$ cat <<EOF >> .hg/hgrc
> [phases]
> publish = no
> [experimental]
> single-head-per-branch = yes
> EOF
$ mkcommit ROOT
$ mkcommit c_dA0
$ cd ..
$ hg clone single-head-server client
updating to branch default
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
Test single head enforcing - with branch only
---------------------------------------------
$ cd client
continuing the current defaultbranch
$ mkcommit c_dB0
$ hg push
pushing to $TESTTMP/single-head-server
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
creating a new branch
$ hg up 'desc("ROOT")'
0 files updated, 0 files merged, 2 files removed, 0 files unresolved
$ hg branch branch_A
marked working directory as branch branch_A
(branches are permanent and global, did you want a bookmark?)
$ mkcommit c_aC0
$ hg push --new-branch
pushing to $TESTTMP/single-head-server
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files (+1 heads)
Create a new head on the default branch
$ hg up 'desc("c_dA0")'
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ mkcommit c_dD0
created new head
$ hg push -f
pushing to $TESTTMP/single-head-server
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files (+1 heads)
transaction abort!
rollback completed
abort: rejecting multiple heads on branch "default"
(2 heads: 286d02a6e2a2 9bf953aa81f6)
[255]
remerge them
$ hg merge
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ mkcommit c_dE0
$ hg push
pushing to $TESTTMP/single-head-server
searching for changes
adding changesets
adding manifests
adding file changes
added 2 changesets with 2 changes to 2 files
Test single head enforcing - after rewrite
------------------------------------------
$ mkcommit c_dF0
$ hg push
pushing to $TESTTMP/single-head-server
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
$ hg commit --amend -m c_dF1
$ hg push
pushing to $TESTTMP/single-head-server
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 0 changes to 1 files (+1 heads)
1 new obsolescence markers
obsoleted 1 changesets
Check it does to interfer with strip
------------------------------------
setup
$ hg branch branch_A --force
marked working directory as branch branch_A
$ mkcommit c_aG0
created new head
$ hg update 'desc("c_dF1")'
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ mkcommit c_dH0
$ hg update 'desc("c_aG0")'
1 files updated, 0 files merged, 1 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)
$ mkcommit c_aI0
$ hg log -G
@ changeset: 10:49003e504178
|\ branch: branch_A
| | tag: tip
| | parent: 8:a33fb808fb4b
| | parent: 3:840af1c6bc88
| | user: test
| | date: Thu Jan 01 00:00:00 1970 +0000
| | summary: c_aI0
| |
| | o changeset: 9:fe47ea669cea
| | | parent: 7:99a2dc242c5d
| | | user: test
| | | date: Thu Jan 01 00:00:00 1970 +0000
| | | summary: c_dH0
| | |
| o | changeset: 8:a33fb808fb4b
| |/ branch: branch_A
| | user: test
| | date: Thu Jan 01 00:00:00 1970 +0000
| | summary: c_aG0
| |
| o changeset: 7:99a2dc242c5d
| | parent: 5:6ed1df20edb1
| | user: test
| | date: Thu Jan 01 00:00:00 1970 +0000
| | summary: c_dF1
| |
| o changeset: 5:6ed1df20edb1
| |\ parent: 4:9bf953aa81f6
| | | parent: 2:286d02a6e2a2
| | | user: test
| | | date: Thu Jan 01 00:00:00 1970 +0000
| | | summary: c_dE0
| | |
| | o changeset: 4:9bf953aa81f6
| | | parent: 1:134bc3852ad2
| | | user: test
| | | date: Thu Jan 01 00:00:00 1970 +0000
| | | summary: c_dD0
| | |
o | | changeset: 3:840af1c6bc88
| | | branch: branch_A
| | | parent: 0:ea207398892e
| | | user: test
| | | date: Thu Jan 01 00:00:00 1970 +0000
| | | summary: c_aC0
| | |
| o | changeset: 2:286d02a6e2a2
| |/ user: test
| | date: Thu Jan 01 00:00:00 1970 +0000
| | summary: c_dB0
| |
| o changeset: 1:134bc3852ad2
|/ user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: c_dA0
|
o changeset: 0:ea207398892e
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: ROOT
actual stripping
$ hg strip --config extensions.strip= --rev 'desc("c_dH0")'
saved backup bundle to $TESTTMP/client/.hg/strip-backup/fe47ea669cea-a41bf5a9-backup.hg