revlog: use an explicit config option to enable mmap usage for index
We replace the `experimental.mmapindexthreshold` with two options:
The `storage.revlog.mmap.index` is a boolean option to enable or disable the
feature. The `storage.revlog.mmap.index:size-threshold` is a bytes option that
control when we will be using mmap instead of plain reading.
=====================================================
test behavior of the `internal` phase around bundling
=====================================================
Long story short, internal changeset are internal implementation details and
they should never leave the repository. Hence, they should never be in a
bundle.
Setup
=====
$ cat << EOF >> $HGRCPATH
> [ui]
> logtemplate="{node|short} [{phase}] {desc|firstline}"
> EOF
$ hg init reference-repo --config format.use-internal-phase=yes
$ cd reference-repo
$ echo a > a
$ hg add a
$ hg commit -m "a"
$ echo b > b
$ hg add b
$ hg commit -m "b"
$ echo b > c
$ hg add c
$ hg commit -m "c"
$ hg log -G
@ 07f0cc02c068 [draft] c
|
o d2ae7f538514 [draft] b
|
o cb9a9f314b8b [draft] a
$ hg up ".^"
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
do a shelve
$ touch a_file.txt
$ hg shelve -A
adding a_file.txt
shelved as default
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg log -G --hidden
o 2ec3cf310d86 [internal] changes to: b
|
| o 07f0cc02c068 [draft] c
|/
@ d2ae7f538514 [draft] b
|
o cb9a9f314b8b [draft] a
$ shelved_node=`hg log --rev tip --hidden -T '{node|short}'`
add more changeset above it
$ hg up 'desc(a)'
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ echo d > d
$ hg add d
$ hg commit -m "d"
created new head
$ echo d > e
$ hg add e
$ hg commit -m "e"
$ hg up null
0 files updated, 0 files merged, 3 files removed, 0 files unresolved
$ hg log -G
o 636bc07920e3 [draft] e
|
o 980f7dc84c29 [draft] d
|
| o 07f0cc02c068 [draft] c
| |
| o d2ae7f538514 [draft] b
|/
o cb9a9f314b8b [draft] a
$ hg log -G --hidden
o 636bc07920e3 [draft] e
|
o 980f7dc84c29 [draft] d
|
| o 2ec3cf310d86 [internal] changes to: b
| |
| | o 07f0cc02c068 [draft] c
| |/
| o d2ae7f538514 [draft] b
|/
o cb9a9f314b8b [draft] a
$ cd ..
backup bundle from strip
========================
strip an ancestors of the internal changeset
--------------------------------------------
$ cp -aR reference-repo strip-ancestor
$ cd strip-ancestor
The internal change is stripped, yet it should be skipped from the backup bundle.
$ hg log -G
o 636bc07920e3 [draft] e
|
o 980f7dc84c29 [draft] d
|
| o 07f0cc02c068 [draft] c
| |
| o d2ae7f538514 [draft] b
|/
o cb9a9f314b8b [draft] a
$ hg debugstrip 'desc(b)'
saved backup bundle to $TESTTMP/strip-ancestor/.hg/strip-backup/d2ae7f538514-59bd8bc3-backup.hg
The change should be either gone or hidden
$ hg log -G
o 636bc07920e3 [draft] e
|
o 980f7dc84c29 [draft] d
|
o cb9a9f314b8b [draft] a
The backup should not include it (as people tend to manipulate these directly)
$ ls -1 .hg/strip-backup/
d2ae7f538514-59bd8bc3-backup.hg
$ hg debugbundle .hg/strip-backup/*.hg
Stream params: {Compression: BZ}
changegroup -- {nbchanges: 2, version: 03} (mandatory: True)
d2ae7f538514cd87c17547b0de4cea71fe1af9fb
07f0cc02c06869c81ebf33867edef30554020c0d
cache:rev-branch-cache -- {} (mandatory: False)
phase-heads -- {} (mandatory: True)
07f0cc02c06869c81ebf33867edef30554020c0d draft
Shelve should still work
$ hg unshelve
unshelving change 'default'
rebasing shelved changes
$ hg status
A a_file.txt
$ cd ..
strip an unrelated changeset with a lower revnum
------------------------------------------------
$ cp -aR reference-repo strip-unrelated
$ cd strip-unrelated
The internal change is not directly stripped, but it is affected by the strip
and it is in the "temporary backup" zone. The zone that needs to be put in a
temporary bundle while we affect data under it.
$ hg debugstrip 'desc(c)'
saved backup bundle to $TESTTMP/strip-unrelated/.hg/strip-backup/07f0cc02c068-8fd0515f-backup.hg
The change should be either gone or hidden
$ hg log -G
o 636bc07920e3 [draft] e
|
o 980f7dc84c29 [draft] d
|
| o d2ae7f538514 [draft] b
|/
o cb9a9f314b8b [draft] a
The backup should not include it (as people tend to manipulate these directly)
$ ls -1 .hg/strip-backup/
07f0cc02c068-8fd0515f-backup.hg
$ hg debugbundle .hg/strip-backup/*.hg
Stream params: {Compression: BZ}
changegroup -- {nbchanges: 1, version: 03} (mandatory: True)
07f0cc02c06869c81ebf33867edef30554020c0d
cache:rev-branch-cache -- {} (mandatory: False)
phase-heads -- {} (mandatory: True)
07f0cc02c06869c81ebf33867edef30554020c0d draft
Shelve should still work
$ hg unshelve
unshelving change 'default'
rebasing shelved changes
$ hg status
A a_file.txt
$ cd ..
explicitly strip the internal changeset
---------------------------------------
$ cp -aR reference-repo strip-explicit
$ cd strip-explicit
The internal change is directly selected for stripping.
$ hg debugstrip --hidden $shelved_node
The change should be gone
$ hg log -G --hidden
o 636bc07920e3 [draft] e
|
o 980f7dc84c29 [draft] d
|
| o 07f0cc02c068 [draft] c
| |
| o d2ae7f538514 [draft] b
|/
o cb9a9f314b8b [draft] a
We don't need to backup anything
$ ls -1 .hg/strip-backup/
Shelve should still work
$ hg unshelve
unshelving change 'default'
rebasing shelved changes
$ hg status
A a_file.txt
$ cd ..
Explicitly bundling the internal change
=======================================
$ cd reference-repo
try to bundle it alone explicitly
---------------------------------
We should not allow it
$ hg bundle --type v3 --exact --rev $shelved_node --hidden ../internal-01.hg
abort: cannot bundle internal changesets
(1 internal changesets selected)
[255]
$ hg debugbundle ../internal-01.hg
abort: $ENOENT$: '../internal-01.hg'
[255]
try to bundle it with other, somewhat explicitly
------------------------------------------------
We should not allow it
$ hg bundle --type v3 --exact --rev 'desc(b)':: --hidden ../internal-02.hg
abort: cannot bundle internal changesets
(1 internal changesets selected)
[255]
$ hg debugbundle ../internal-02.hg
abort: $ENOENT$: '../internal-02.hg'
[255]
bundle visible ancestors
------------------------
This should succeed as the standard filtering is skipping the internal change naturally
$ hg bundle --type v3 --exact --rev 'desc(b)':: ../internal-03.hg
2 changesets found
$ hg debugbundle ../internal-03.hg
Stream params: {Compression: BZ}
changegroup -- {nbchanges: 2, version: 03} (mandatory: True)
d2ae7f538514cd87c17547b0de4cea71fe1af9fb
07f0cc02c06869c81ebf33867edef30554020c0d
cache:rev-branch-cache -- {} (mandatory: False)
phase-heads -- {} (mandatory: True)
07f0cc02c06869c81ebf33867edef30554020c0d draft
$ cd ..