rust-dirstate: call rust dirstatemap from Python
Since Rust-backed Python classes cannot be used as baseclasses (for
rust-cpython anyway), we use composition rather than inheritance.
This also allows us to keep the IO operations in the Python side, removing
(for now) the need to rewrite VFS in Rust, which would be a heavy undertaking.
Differential Revision: https://phab.mercurial-scm.org/D6634
$ hg init basic
$ cd basic
should complain
$ hg backout
abort: please specify a revision to backout
[255]
$ hg backout -r 0 0
abort: please specify just one revision
[255]
basic operation
(this also tests that editor is invoked if the commit message is not
specified explicitly)
$ echo a > a
$ hg commit -d '0 0' -A -m a
adding a
$ echo b >> a
$ hg commit -d '1 0' -m b
$ hg status --rev tip --rev "tip^1"
M a
$ HGEDITOR=cat hg backout -d '2 0' tip --tool=true
reverting a
Backed out changeset a820f4f40a57
HG: Enter commit message. Lines beginning with 'HG:' are removed.
HG: Leave message empty to abort commit.
HG: --
HG: user: test
HG: branch 'default'
HG: changed a
changeset 2:2929462c3dff backs out changeset 1:a820f4f40a57
$ cat a
a
$ hg summary
parent: 2:2929462c3dff tip
Backed out changeset a820f4f40a57
branch: default
commit: (clean)
update: (current)
phases: 3 draft
commit option
$ cd ..
$ hg init commit
$ cd commit
$ echo tomatoes > a
$ hg add a
$ hg commit -d '0 0' -m tomatoes
$ echo chair > b
$ hg add b
$ hg commit -d '1 0' -m chair
$ echo grapes >> a
$ hg commit -d '2 0' -m grapes
$ hg backout -d '4 0' 1 --tool=:fail
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
changeset 3:1c2161e97c0a backs out changeset 1:22cb4f70d813
$ hg summary
parent: 3:1c2161e97c0a tip
Backed out changeset 22cb4f70d813
branch: default
commit: (clean)
update: (current)
phases: 4 draft
$ echo ypples > a
$ hg commit -d '5 0' -m ypples
$ hg backout -d '6 0' 2 --tool=:fail
0 files updated, 0 files merged, 0 files removed, 1 files unresolved
use 'hg resolve' to retry unresolved file merges
[1]
$ hg summary
parent: 4:ed99997b793d tip
ypples
branch: default
commit: 1 unresolved (clean)
update: (current)
phases: 5 draft
file that was removed is recreated
(this also tests that editor is not invoked if the commit message is
specified explicitly)
$ cd ..
$ hg init remove
$ cd remove
$ echo content > a
$ hg commit -d '0 0' -A -m a
adding a
$ hg rm a
$ hg commit -d '1 0' -m b
$ HGEDITOR=cat hg backout -d '2 0' tip --tool=true -m "Backed out changeset 76862dcce372"
adding a
changeset 2:de31bdc76c0d backs out changeset 1:76862dcce372
$ cat a
content
$ hg summary
parent: 2:de31bdc76c0d tip
Backed out changeset 76862dcce372
branch: default
commit: (clean)
update: (current)
phases: 3 draft
backout of backout is as if nothing happened
$ hg backout -d '3 0' --merge tip --tool=true
removing a
changeset 3:7f6d0f120113 backs out changeset 2:de31bdc76c0d
$ test -f a
[1]
$ hg summary
parent: 3:7f6d0f120113 tip
Backed out changeset de31bdc76c0d
branch: default
commit: (clean)
update: (current)
phases: 4 draft
Test that 'hg rollback' restores dirstate just before opening
transaction: in-memory dirstate changes should be written into
'.hg/journal.dirstate' as expected.
$ echo 'removed soon' > b
$ hg commit -A -d '4 0' -m 'prepare for subsequent removing'
adding b
$ echo 'newly added' > c
$ hg add c
$ hg remove b
$ hg commit -d '5 0' -m 'prepare for subsequent backout'
$ touch -t 200001010000 c
$ hg status -A
C c
$ hg debugstate --no-dates
n 644 12 set c
$ hg backout -d '6 0' -m 'to be rollback-ed soon' -r .
removing c
adding b
changeset 6:4bfec048029d backs out changeset 5:fac0b729a654
$ hg rollback -q
$ hg status -A
A b
R c
$ hg debugstate --no-dates
a 0 -1 unset b
r 0 0 set c
across branch
$ cd ..
$ hg init branch
$ cd branch
$ echo a > a
$ hg ci -Am0
adding a
$ echo b > b
$ hg ci -Am1
adding b
$ hg co -C 0
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg summary
parent: 0:f7b1eb17ad24
0
branch: default
commit: (clean)
update: 1 new changesets (update)
phases: 2 draft
should fail
$ hg backout 1
abort: cannot backout change that is not an ancestor
[255]
$ echo c > c
$ hg ci -Am2
adding c
created new head
$ hg summary
parent: 2:db815d6d32e6 tip
2
branch: default
commit: (clean)
update: 1 new changesets, 2 branch heads (merge)
phases: 3 draft
should fail
$ hg backout 1
abort: cannot backout change that is not an ancestor
[255]
$ hg summary
parent: 2:db815d6d32e6 tip
2
branch: default
commit: (clean)
update: 1 new changesets, 2 branch heads (merge)
phases: 3 draft
backout with merge
$ cd ..
$ hg init merge
$ cd merge
$ echo line 1 > a
$ echo line 2 >> a
$ hg commit -d '0 0' -A -m a
adding a
$ hg summary
parent: 0:59395513a13a tip
a
branch: default
commit: (clean)
update: (current)
phases: 1 draft
remove line 1
$ echo line 2 > a
$ hg commit -d '1 0' -m b
$ echo line 3 >> a
$ hg commit -d '2 0' -m c
$ hg backout --merge -d '3 0' 1 --tool=true
reverting a
created new head
changeset 3:26b8ccb9ad91 backs out changeset 1:5a50a024c182
merging with changeset 3:26b8ccb9ad91
merging a
0 files updated, 1 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ hg commit -d '4 0' -m d
$ hg summary
parent: 4:c7df5e0b9c09 tip
d
branch: default
commit: (clean)
update: (current)
phases: 5 draft
check line 1 is back
$ cat a
line 1
line 2
line 3
Test visibility of in-memory dirstate changes outside transaction to
external hook process
$ cat > $TESTTMP/checkvisibility.sh <<EOF
> echo "==== \$1:"
> hg parents --template "{rev}:{node|short}\n"
> echo "===="
> EOF
"hg backout --merge REV1" at REV2 below implies steps below:
(1) update to REV1 (REV2 => REV1)
(2) revert by REV1^1
(3) commit backing out revision (REV3)
(4) update to REV2 (REV3 => REV2)
(5) merge with REV3 (REV2 => REV2, REV3)
== test visibility to external preupdate hook
$ hg update -q -C 2
$ hg --config extensions.strip= strip 3
saved backup bundle to * (glob)
$ cat >> .hg/hgrc <<EOF
> [hooks]
> preupdate.visibility = sh $TESTTMP/checkvisibility.sh preupdate
> EOF
("-m" is needed to avoid writing dirstate changes out at other than
invocation of the hook to be examined)
$ hg backout --merge -d '3 0' 1 --tool=true -m 'fixed comment'
==== preupdate:
2:6ea3f2a197a2
====
reverting a
created new head
changeset 3:d92a3f57f067 backs out changeset 1:5a50a024c182
==== preupdate:
3:d92a3f57f067
====
merging with changeset 3:d92a3f57f067
==== preupdate:
2:6ea3f2a197a2
====
merging a
0 files updated, 1 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ cat >> .hg/hgrc <<EOF
> [hooks]
> preupdate.visibility =
> EOF
== test visibility to external update hook
$ hg update -q -C 2
$ hg --config extensions.strip= strip 3
saved backup bundle to * (glob)
$ cat >> .hg/hgrc <<EOF
> [hooks]
> update.visibility = sh $TESTTMP/checkvisibility.sh update
> EOF
$ hg backout --merge -d '3 0' 1 --tool=true -m 'fixed comment'
==== update:
1:5a50a024c182
====
reverting a
created new head
changeset 3:d92a3f57f067 backs out changeset 1:5a50a024c182
==== update:
2:6ea3f2a197a2
====
merging with changeset 3:d92a3f57f067
merging a
==== update:
2:6ea3f2a197a2
3:d92a3f57f067
====
0 files updated, 1 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ cat >> .hg/hgrc <<EOF
> [hooks]
> update.visibility =
> EOF
$ cd ..
backout should not back out subsequent changesets
$ hg init onecs
$ cd onecs
$ echo 1 > a
$ hg commit -d '0 0' -A -m a
adding a
$ echo 2 >> a
$ hg commit -d '1 0' -m b
$ echo 1 > b
$ hg commit -d '2 0' -A -m c
adding b
$ hg summary
parent: 2:882396649954 tip
c
branch: default
commit: (clean)
update: (current)
phases: 3 draft
without --merge
$ hg backout --no-commit -d '3 0' 1 --tool=true
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
changeset 22bca4c721e5 backed out, don't forget to commit.
$ hg locate b
b
$ hg update -C tip
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg locate b
b
$ hg summary
parent: 2:882396649954 tip
c
branch: default
commit: (clean)
update: (current)
phases: 3 draft
with --merge
$ hg backout --merge -d '3 0' 1 --tool=true
reverting a
created new head
changeset 3:3202beb76721 backs out changeset 1:22bca4c721e5
merging with changeset 3:3202beb76721
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ hg locate b
b
$ hg update -C tip
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg locate b
[1]
$ cd ..
$ hg init m
$ cd m
$ echo a > a
$ hg commit -d '0 0' -A -m a
adding a
$ echo b > b
$ hg commit -d '1 0' -A -m b
adding b
$ echo c > c
$ hg commit -d '2 0' -A -m b
adding c
$ hg update 1
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ echo d > d
$ hg commit -d '3 0' -A -m c
adding d
created new head
$ hg merge 2
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ hg commit -d '4 0' -A -m d
$ hg summary
parent: 4:b2f3bb92043e tip
d
branch: default
commit: (clean)
update: (current)
phases: 5 draft
backout of merge should fail
$ hg backout 4
abort: cannot backout a merge changeset
[255]
backout of merge with bad parent should fail
$ hg backout --parent 0 4
abort: cb9a9f314b8b is not a parent of b2f3bb92043e
[255]
backout of non-merge with parent should fail
$ hg backout --parent 0 3
abort: cannot use --parent on non-merge changeset
[255]
backout with valid parent should be ok
$ hg backout -d '5 0' --parent 2 4 --tool=true
removing d
changeset 5:10e5328c8435 backs out changeset 4:b2f3bb92043e
$ hg summary
parent: 5:10e5328c8435 tip
Backed out changeset b2f3bb92043e
branch: default
commit: (clean)
update: (current)
phases: 6 draft
$ hg rollback
repository tip rolled back to revision 4 (undo commit)
working directory now based on revision 4
$ hg update -C
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg summary
parent: 4:b2f3bb92043e tip
d
branch: default
commit: (clean)
update: (current)
phases: 5 draft
$ hg backout -d '6 0' --parent 3 4 --tool=true
removing c
changeset 5:033590168430 backs out changeset 4:b2f3bb92043e
$ hg summary
parent: 5:033590168430 tip
Backed out changeset b2f3bb92043e
branch: default
commit: (clean)
update: (current)
phases: 6 draft
$ cd ..
named branches
$ hg init named_branches
$ cd named_branches
$ echo default > default
$ hg ci -d '0 0' -Am default
adding default
$ hg branch branch1
marked working directory as branch branch1
(branches are permanent and global, did you want a bookmark?)
$ echo branch1 > file1
$ hg ci -d '1 0' -Am file1
adding file1
$ hg branch branch2
marked working directory as branch branch2
$ echo branch2 > file2
$ hg ci -d '2 0' -Am file2
adding file2
without --merge
$ hg backout --no-commit -r 1 --tool=true
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
changeset bf1602f437f3 backed out, don't forget to commit.
$ hg branch
branch2
$ hg status -A
R file1
C default
C file2
$ hg summary
parent: 2:45bbcd363bf0 tip
file2
branch: branch2
commit: 1 removed
update: (current)
phases: 3 draft
with --merge
(this also tests that editor is invoked if '--edit' is specified
explicitly regardless of '--message')
$ hg update -qC
$ HGEDITOR=cat hg backout --merge -d '3 0' -r 1 -m 'backout on branch1' --tool=true --edit
removing file1
backout on branch1
HG: Enter commit message. Lines beginning with 'HG:' are removed.
HG: Leave message empty to abort commit.
HG: --
HG: user: test
HG: branch 'branch2'
HG: removed file1
created new head
changeset 3:d4e8f6db59fb backs out changeset 1:bf1602f437f3
merging with changeset 3:d4e8f6db59fb
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ hg summary
parent: 2:45bbcd363bf0
file2
parent: 3:d4e8f6db59fb tip
backout on branch1
branch: branch2
commit: 1 removed (merge)
update: (current)
phases: 4 draft
$ hg update -q -C 2
on branch2 with branch1 not merged, so file1 should still exist:
$ hg id
45bbcd363bf0 (branch2)
$ hg st -A
C default
C file1
C file2
$ hg summary
parent: 2:45bbcd363bf0
file2
branch: branch2
commit: (clean)
update: 1 new changesets, 2 branch heads (merge)
phases: 4 draft
on branch2 with branch1 merged, so file1 should be gone:
$ hg merge
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ hg ci -d '4 0' -m 'merge backout of branch1'
$ hg id
d97a8500a969 (branch2) tip
$ hg st -A
C default
C file2
$ hg summary
parent: 4:d97a8500a969 tip
merge backout of branch1
branch: branch2
commit: (clean)
update: (current)
phases: 5 draft
on branch1, so no file1 and file2:
$ hg co -C branch1
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg id
bf1602f437f3 (branch1)
$ hg st -A
C default
C file1
$ hg summary
parent: 1:bf1602f437f3
file1
branch: branch1
commit: (clean)
update: (current)
phases: 5 draft
$ cd ..
backout of empty changeset (issue4190)
$ hg init emptycommit
$ cd emptycommit
$ touch file1
$ hg ci -Aqm file1
$ hg branch -q branch1
$ hg ci -qm branch1
$ hg backout -v 1
resolving manifests
nothing changed
[1]
$ cd ..
Test usage of `hg resolve` in case of conflict
(issue4163)
$ hg init issue4163
$ cd issue4163
$ touch foo
$ hg add foo
$ cat > foo << EOF
> one
> two
> three
> four
> five
> six
> seven
> height
> nine
> ten
> EOF
$ hg ci -m 'initial'
$ cat > foo << EOF
> one
> two
> THREE
> four
> five
> six
> seven
> height
> nine
> ten
> EOF
$ hg ci -m 'capital three'
$ cat > foo << EOF
> one
> two
> THREE
> four
> five
> six
> seven
> height
> nine
> TEN
> EOF
$ hg ci -m 'capital ten'
$ hg backout -r 'desc("capital three")' --tool internal:fail
0 files updated, 0 files merged, 0 files removed, 1 files unresolved
use 'hg resolve' to retry unresolved file merges
[1]
$ hg status
$ hg debugmergestate
* version 2 records
local: b71750c4b0fdf719734971e3ef90dbeab5919a2d
other: a30dd8addae3ce71b8667868478542bc417439e6
file extras: foo (ancestorlinknode = 91360952243723bd5b1138d5f26bd8c8564cb553)
file: foo (record type "F", state "u", hash 0beec7b5ea3f0fdbc95d0dd47f3c5bc275da8a33)
local path: foo (flags "")
ancestor path: foo (node f89532f44c247a0e993d63e3a734dd781ab04708)
other path: foo (node f50039b486d6fa1a90ae51778388cad161f425ee)
$ mv .hg/merge/state2 .hg/merge/state2-moved
$ hg debugmergestate
* version 1 records
local: b71750c4b0fdf719734971e3ef90dbeab5919a2d
file: foo (record type "F", state "u", hash 0beec7b5ea3f0fdbc95d0dd47f3c5bc275da8a33)
local path: foo (flags "")
ancestor path: foo (node f89532f44c247a0e993d63e3a734dd781ab04708)
other path: foo (node not stored in v1 format)
$ mv .hg/merge/state2-moved .hg/merge/state2
$ hg resolve -l # still unresolved
U foo
$ hg summary
parent: 2:b71750c4b0fd tip
capital ten
branch: default
commit: 1 unresolved (clean)
update: (current)
phases: 3 draft
$ hg resolve --all --debug
picked tool ':merge' for foo (binary False symlink False changedelete False)
merging foo
my foo@b71750c4b0fd+ other foo@a30dd8addae3 ancestor foo@913609522437
premerge successful
(no more unresolved files)
continue: hg commit
$ hg status
M foo
? foo.orig
$ hg resolve -l
R foo
$ hg summary
parent: 2:b71750c4b0fd tip
capital ten
branch: default
commit: 1 modified, 1 unknown
update: (current)
phases: 3 draft
$ cat foo
one
two
three
four
five
six
seven
height
nine
TEN
--no-commit shouldn't commit
$ hg init a
$ cd a
$ for i in 1 2 3; do
> touch $i
> hg ci -Am $i
> done
adding 1
adding 2
adding 3
$ hg backout --no-commit .
removing 3
changeset cccc23d9d68f backed out, don't forget to commit.
$ hg revert -aq
--no-commit can't be used with --merge
$ hg backout --merge --no-commit 2
abort: cannot use --merge with --no-commit
[255]