dirstate-v2: Support appending to the same data file
For now we’re still writing the entire data every time, so appending is not
useful yet. Later we’ll have new nodes pointing to some existing data for
nodes and paths that haven’t changed.
The decision whether to append is pseudo-random in order to make tests exercise
both code paths. This will be replaced by a heuristic based on the amount
of unused existing data.
Differential Revision: https://phab.mercurial-scm.org/D11094
=========================================================
Test features and behaviors related to the archived phase
=========================================================
$ cat << EOF >> $HGRCPATH
> [format]
> internal-phase=yes
> [extensions]
> strip=
> [experimental]
> EOF
$ hg init repo
$ cd repo
$ echo root > a
$ hg add a
$ hg ci -m 'root'
Test that bundle can unarchive a changeset
------------------------------------------
$ echo foo >> a
$ hg st
M a
$ hg ci -m 'unbundletesting'
$ hg log -G
@ changeset: 1:883aadbbf309
| tag: tip
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: unbundletesting
|
o changeset: 0:c1863a3840c6
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: root
$ hg strip --soft --rev '.'
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
saved backup bundle to $TESTTMP/repo/.hg/strip-backup/883aadbbf309-efc55adc-backup.hg
$ hg log -G
@ changeset: 0:c1863a3840c6
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: root
$ hg log -G --hidden
o changeset: 1:883aadbbf309
| tag: tip
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: unbundletesting
|
@ changeset: 0:c1863a3840c6
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: root
$ hg unbundle .hg/strip-backup/883aadbbf309-efc55adc-backup.hg
adding changesets
adding manifests
adding file changes
added 0 changesets with 0 changes to 1 files
(run 'hg update' to get a working copy)
$ hg log -G
o changeset: 1:883aadbbf309
| tag: tip
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: unbundletesting
|
@ changeset: 0:c1863a3840c6
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: root
Test that history rewriting command can use the archived phase when allowed to
------------------------------------------------------------------------------
$ hg up 'desc(unbundletesting)'
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo bar >> a
$ hg commit --amend --config experimental.cleanup-as-archived=yes
$ hg log -G
@ changeset: 2:d1e73e428f29
| tag: tip
| parent: 0:c1863a3840c6
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: unbundletesting
|
o changeset: 0:c1863a3840c6
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: root
$ hg log -G --hidden
@ changeset: 2:d1e73e428f29
| tag: tip
| parent: 0:c1863a3840c6
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: unbundletesting
|
| o changeset: 1:883aadbbf309
|/ user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: unbundletesting
|
o changeset: 0:c1863a3840c6
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: root
$ ls -1 .hg/strip-backup/
883aadbbf309-efc55adc-amend.hg
883aadbbf309-efc55adc-backup.hg
$ hg unbundle .hg/strip-backup/883aadbbf309*amend.hg
adding changesets
adding manifests
adding file changes
added 0 changesets with 0 changes to 1 files
(run 'hg update' to get a working copy)
$ hg log -G
@ changeset: 2:d1e73e428f29
| tag: tip
| parent: 0:c1863a3840c6
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: unbundletesting
|
| o changeset: 1:883aadbbf309
|/ user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: unbundletesting
|
o changeset: 0:c1863a3840c6
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: root