commit: try hard to reuse p1 manifest if nothing changed
This is all for commit reproducibility on "hg convert".
With this change, p1 manifest is reused if ctx.files() *to be committed* is
empty, and if new manifest entry is identical to p1. This is important
property for "hg convert" since memctx.files() built from a convert source
may be either a) more narrowed thanks to a committed ctx.files() which
provides more accurate status, or b) containing redundant files because of
sloppy filtering on e.g. octopus merge.
#require bzr
N.B. bzr 1.13 has a bug that breaks this test. If you see this
test fail, check your bzr version. Upgrading to bzr 1.13.1
should fix it.
$ . "$TESTDIR/bzr-definitions"
test multiple merges at once
$ mkdir test-multimerge
$ cd test-multimerge
$ bzr init -q source
$ cd source
$ echo content > file
$ bzr add -q file
$ bzr commit -q -m 'Initial add' '--commit-time=2009-10-10 08:00:00 +0100'
$ cd ..
$ bzr branch -q source source-branch1
$ cd source-branch1
$ echo morecontent >> file
$ echo evenmorecontent > file-branch1
$ bzr add -q file-branch1
$ bzr commit -q -m 'Added branch1 file' '--commit-time=2009-10-10 08:00:01 +0100'
$ cd ../source
$ sleep 1
$ echo content > file-parent
$ bzr add -q file-parent
$ bzr commit -q -m 'Added parent file' '--commit-time=2009-10-10 08:00:02 +0100'
$ cd ..
$ bzr branch -q source source-branch2
$ cd source-branch2
$ echo somecontent > file-branch2
$ bzr add -q file-branch2
$ bzr commit -q -m 'Added brach2 file' '--commit-time=2009-10-10 08:00:03 +0100'
$ sleep 1
$ cd ../source
$ bzr merge -q ../source-branch1
$ bzr merge -q --force ../source-branch2
$ bzr commit -q -m 'Merged branches' '--commit-time=2009-10-10 08:00:04 +0100'
$ cd ..
$ hg convert --datesort --config convert.bzr.saverev=False source source-hg
initializing destination source-hg repository
scanning source...
sorting...
converting...
4 Initial add
3 Added branch1 file
2 Added parent file
1 Added brach2 file
0 Merged branches
$ glog -R source-hg
o 5@source "(octopus merge fixup)" files:
|\
| o 4@source "Merged branches" files: file-branch2
| |\
o---+ 3@source-branch2 "Added brach2 file" files: file-branch2
/ /
| o 2@source "Added parent file" files: file-parent
| |
o | 1@source-branch1 "Added branch1 file" files: file file-branch1
|/
o 0@source "Initial add" files: file
$ manifest source-hg tip
% manifest of tip
644 file
644 file-branch1
644 file-branch2
644 file-parent
$ hg convert source-hg hg2hg
initializing destination hg2hg repository
scanning source...
sorting...
converting...
5 Initial add
4 Added branch1 file
3 Added parent file
2 Added brach2 file
1 Merged branches
0 (octopus merge fixup)
$ hg -R hg2hg out source-hg -T compact
comparing with source-hg
searching for changes
no changes found
[1]
$ hg -R source-hg log --debug -r tip
changeset: 5:6bd55e8269392769783345686faf7ff7b3b0215d
branch: source
tag: tip
phase: draft
parent: 4:1dc38c377bb35eeea4fa955056fbe4440d54a743
parent: 3:4aaba1bfb426b8941bbf63f9dd52301152695164
manifest: 4:daa315d56a98ba20811fdd0d9d575861f65cfa8c
user: Foo Bar <foo.bar@example.com>
date: Sat Oct 10 08:00:04 2009 +0100
extra: branch=source
description:
(octopus merge fixup)
$ hg -R hg2hg log --debug -r tip
changeset: 5:6bd55e8269392769783345686faf7ff7b3b0215d
branch: source
tag: tip
phase: draft
parent: 4:1dc38c377bb35eeea4fa955056fbe4440d54a743
parent: 3:4aaba1bfb426b8941bbf63f9dd52301152695164
manifest: 4:daa315d56a98ba20811fdd0d9d575861f65cfa8c
user: Foo Bar <foo.bar@example.com>
date: Sat Oct 10 08:00:04 2009 +0100
extra: branch=source
description:
(octopus merge fixup)
$ hg -R source-hg manifest --debug -r tip
cdf31ed9242b209cd94697112160e2c5b37a667d 644 file
5108144f585149b29779d7c7e51d61dd22303ffe 644 file-branch1
80753c4a9ac3806858405b96b24a907b309e3616 644 file-branch2
7108421418404a937c684d2479a34a24d2ce4757 644 file-parent
$ hg -R source-hg manifest --debug -r 'tip^'
cdf31ed9242b209cd94697112160e2c5b37a667d 644 file
5108144f585149b29779d7c7e51d61dd22303ffe 644 file-branch1
80753c4a9ac3806858405b96b24a907b309e3616 644 file-branch2
7108421418404a937c684d2479a34a24d2ce4757 644 file-parent
$ hg -R hg2hg manifest --debug -r tip
cdf31ed9242b209cd94697112160e2c5b37a667d 644 file
5108144f585149b29779d7c7e51d61dd22303ffe 644 file-branch1
80753c4a9ac3806858405b96b24a907b309e3616 644 file-branch2
7108421418404a937c684d2479a34a24d2ce4757 644 file-parent
$ hg -R hg2hg manifest --debug -r 'tip^'
cdf31ed9242b209cd94697112160e2c5b37a667d 644 file
5108144f585149b29779d7c7e51d61dd22303ffe 644 file-branch1
80753c4a9ac3806858405b96b24a907b309e3616 644 file-branch2
7108421418404a937c684d2479a34a24d2ce4757 644 file-parent
$ cd ..