revlog: add some documentation to the `checksize` method
I had to look at it, so I figured I would leave some documentation for the next
person seeking information.
#testcases obsstore-on obsstore-off
$ cat > $TESTTMP/editor.py <<EOF
> #!"$PYTHON"
> import os
> import sys
> path = os.path.join(os.environ['TESTTMP'], 'messages')
> messages = open(path).read().split('--\n')
> prompt = open(sys.argv[1]).read()
> sys.stdout.write(''.join('EDITOR: %s' % l for l in prompt.splitlines(True)))
> sys.stdout.flush()
> with open(sys.argv[1], 'w') as f:
> f.write(messages[0])
> with open(path, 'w') as f:
> f.write('--\n'.join(messages[1:]))
> EOF
$ cat >> $HGRCPATH <<EOF
> [extensions]
> drawdag=$TESTDIR/drawdag.py
> split=
> [ui]
> interactive=1
> color=no
> paginate=never
> [diff]
> git=1
> unified=0
> [commands]
> commit.interactive.unified=0
> [alias]
> glog=log -G -T '{rev}:{node|short} {desc} {bookmarks}\n'
> EOF
#if obsstore-on
$ cat >> $HGRCPATH <<EOF
> [experimental]
> evolution=all
> EOF
#endif
$ hg init a
$ cd a
Nothing to split
$ hg split
nothing to split
[1]
$ hg commit -m empty --config ui.allowemptycommit=1
$ hg split
abort: cannot split an empty revision
[255]
$ rm -rf .hg
$ hg init
Cannot split working directory
$ hg split -r 'wdir()'
abort: cannot split working directory
[255]
Generate some content. The sed filter drop CR on Windows, which is dropped in
the a > b line.
$ $TESTDIR/seq.py 1 5 | sed 's/\r$//' >> a
$ hg ci -m a1 -A a -q
$ hg bookmark -i r1
$ sed 's/1/11/;s/3/33/;s/5/55/' a > b
$ mv b a
$ hg ci -m a2 -q
$ hg bookmark -i r2
Cannot split a public changeset
$ hg phase --public -r 'all()'
$ hg split .
abort: cannot split public changeset
(see 'hg help phases' for details)
[255]
$ hg phase --draft -f -r 'all()'
Cannot split while working directory is dirty
$ touch dirty
$ hg add dirty
$ hg split .
abort: uncommitted changes
[255]
$ hg forget dirty
$ rm dirty
Make a clean directory for future tests to build off of
$ cp -R . ../clean
Split a head
$ hg bookmark r3
$ hg split 'all()'
abort: cannot split multiple revisions
[255]
This function splits a bit strangely primarily to avoid changing the behavior of
the test after a bug was fixed with how split/commit --interactive handled
`commands.commit.interactive.unified=0`: when there were no context lines,
it kept only the last diff hunk. When running split, this meant that runsplit
was always recording three commits, one for each diff hunk, in reverse order
(the base commit was the last diff hunk in the file).
$ runsplit() {
> cat > $TESTTMP/messages <<EOF
> split 1
> --
> split 2
> --
> split 3
> EOF
> cat <<EOF | hg split "$@"
> y
> n
> n
> y
> y
> n
> y
> y
> y
> EOF
> }
$ HGEDITOR=false runsplit
diff --git a/a b/a
3 hunks, 3 lines changed
examine changes to 'a'? [Ynesfdaq?] y
@@ -1,1 +1,1 @@
-1
+11
record change 1/3 to 'a'? [Ynesfdaq?] n
@@ -3,1 +3,1 @@ 2
-3
+33
record change 2/3 to 'a'? [Ynesfdaq?] n
@@ -5,1 +5,1 @@ 4
-5
+55
record change 3/3 to 'a'? [Ynesfdaq?] y
transaction abort!
rollback completed
abort: edit failed: false exited with status 1
[255]
$ hg status
$ HGEDITOR="\"$PYTHON\" $TESTTMP/editor.py"
$ runsplit
diff --git a/a b/a
3 hunks, 3 lines changed
examine changes to 'a'? [Ynesfdaq?] y
@@ -1,1 +1,1 @@
-1
+11
record change 1/3 to 'a'? [Ynesfdaq?] n
@@ -3,1 +3,1 @@ 2
-3
+33
record change 2/3 to 'a'? [Ynesfdaq?] n
@@ -5,1 +5,1 @@ 4
-5
+55
record change 3/3 to 'a'? [Ynesfdaq?] y
EDITOR: HG: Splitting 1df0d5c5a3ab. Write commit message for the first split changeset.
EDITOR: a2
EDITOR:
EDITOR:
EDITOR: HG: Enter commit message. Lines beginning with 'HG:' are removed.
EDITOR: HG: Leave message empty to abort commit.
EDITOR: HG: --
EDITOR: HG: user: test
EDITOR: HG: branch 'default'
EDITOR: HG: changed a
created new head
diff --git a/a b/a
2 hunks, 2 lines changed
examine changes to 'a'? [Ynesfdaq?] y
@@ -1,1 +1,1 @@
-1
+11
record change 1/2 to 'a'? [Ynesfdaq?] n
@@ -3,1 +3,1 @@ 2
-3
+33
record change 2/2 to 'a'? [Ynesfdaq?] y
EDITOR: HG: Splitting 1df0d5c5a3ab. So far it has been split into:
EDITOR: HG: - e704349bd21b: split 1
EDITOR: HG: Write commit message for the next split changeset.
EDITOR: a2
EDITOR:
EDITOR:
EDITOR: HG: Enter commit message. Lines beginning with 'HG:' are removed.
EDITOR: HG: Leave message empty to abort commit.
EDITOR: HG: --
EDITOR: HG: user: test
EDITOR: HG: branch 'default'
EDITOR: HG: changed a
diff --git a/a b/a
1 hunks, 1 lines changed
examine changes to 'a'? [Ynesfdaq?] y
@@ -1,1 +1,1 @@
-1
+11
record this change to 'a'? [Ynesfdaq?] y
EDITOR: HG: Splitting 1df0d5c5a3ab. So far it has been split into:
EDITOR: HG: - e704349bd21b: split 1
EDITOR: HG: - a09ad58faae3: split 2
EDITOR: HG: Write commit message for the next split changeset.
EDITOR: a2
EDITOR:
EDITOR:
EDITOR: HG: Enter commit message. Lines beginning with 'HG:' are removed.
EDITOR: HG: Leave message empty to abort commit.
EDITOR: HG: --
EDITOR: HG: user: test
EDITOR: HG: branch 'default'
EDITOR: HG: changed a
saved backup bundle to $TESTTMP/a/.hg/strip-backup/1df0d5c5a3ab-8341b760-split.hg (obsstore-off !)
#if obsstore-off
$ hg bookmark
r1 0:a61bcde8c529
r2 3:00eebaf8d2e2
* r3 3:00eebaf8d2e2
$ hg glog -p
@ 3:00eebaf8d2e2 split 3 r2 r3
| diff --git a/a b/a
| --- a/a
| +++ b/a
| @@ -1,1 +1,1 @@
| -1
| +11
|
o 2:a09ad58faae3 split 2
| diff --git a/a b/a
| --- a/a
| +++ b/a
| @@ -3,1 +3,1 @@
| -3
| +33
|
o 1:e704349bd21b split 1
| diff --git a/a b/a
| --- a/a
| +++ b/a
| @@ -5,1 +5,1 @@
| -5
| +55
|
o 0:a61bcde8c529 a1 r1
diff --git a/a b/a
new file mode 100644
--- /dev/null
+++ b/a
@@ -0,0 +1,5 @@
+1
+2
+3
+4
+5
#else
$ hg bookmark
r1 0:a61bcde8c529
r2 4:00eebaf8d2e2
* r3 4:00eebaf8d2e2
$ hg glog
@ 4:00eebaf8d2e2 split 3 r2 r3
|
o 3:a09ad58faae3 split 2
|
o 2:e704349bd21b split 1
|
o 0:a61bcde8c529 a1 r1
#endif
Split a head while working parent is not that head
$ cp -R $TESTTMP/clean $TESTTMP/b
$ cd $TESTTMP/b
$ hg up 0 -q
$ hg bookmark r3
$ runsplit tip >/dev/null
#if obsstore-off
$ hg bookmark
r1 0:a61bcde8c529
r2 3:00eebaf8d2e2
* r3 0:a61bcde8c529
$ hg glog
o 3:00eebaf8d2e2 split 3 r2
|
o 2:a09ad58faae3 split 2
|
o 1:e704349bd21b split 1
|
@ 0:a61bcde8c529 a1 r1 r3
#else
$ hg bookmark
r1 0:a61bcde8c529
r2 4:00eebaf8d2e2
* r3 0:a61bcde8c529
$ hg glog
o 4:00eebaf8d2e2 split 3 r2
|
o 3:a09ad58faae3 split 2
|
o 2:e704349bd21b split 1
|
@ 0:a61bcde8c529 a1 r1 r3
#endif
Split a non-head
$ cp -R $TESTTMP/clean $TESTTMP/c
$ cd $TESTTMP/c
$ echo d > d
$ hg ci -m d1 -A d
$ hg bookmark -i d1
$ echo 2 >> d
$ hg ci -m d2
$ echo 3 >> d
$ hg ci -m d3
$ hg bookmark -i d3
$ hg up '.^' -q
$ hg bookmark d2
$ cp -R . ../d
$ runsplit -r 1 | grep rebasing
rebasing 2:b5c5ea414030 "d1" (d1)
rebasing 3:f4a0a8d004cc "d2" (d2)
rebasing 4:777940761eba "d3" (d3)
#if obsstore-off
$ hg bookmark
d1 4:c4b449ef030e
* d2 5:c9dd00ab36a3
d3 6:19f476bc865c
r1 0:a61bcde8c529
r2 3:00eebaf8d2e2
$ hg glog -p
o 6:19f476bc865c d3 d3
| diff --git a/d b/d
| --- a/d
| +++ b/d
| @@ -2,0 +3,1 @@
| +3
|
@ 5:c9dd00ab36a3 d2 d2
| diff --git a/d b/d
| --- a/d
| +++ b/d
| @@ -1,0 +2,1 @@
| +2
|
o 4:c4b449ef030e d1 d1
| diff --git a/d b/d
| new file mode 100644
| --- /dev/null
| +++ b/d
| @@ -0,0 +1,1 @@
| +d
|
o 3:00eebaf8d2e2 split 3 r2
| diff --git a/a b/a
| --- a/a
| +++ b/a
| @@ -1,1 +1,1 @@
| -1
| +11
|
o 2:a09ad58faae3 split 2
| diff --git a/a b/a
| --- a/a
| +++ b/a
| @@ -3,1 +3,1 @@
| -3
| +33
|
o 1:e704349bd21b split 1
| diff --git a/a b/a
| --- a/a
| +++ b/a
| @@ -5,1 +5,1 @@
| -5
| +55
|
o 0:a61bcde8c529 a1 r1
diff --git a/a b/a
new file mode 100644
--- /dev/null
+++ b/a
@@ -0,0 +1,5 @@
+1
+2
+3
+4
+5
#else
$ hg bookmark
d1 8:c4b449ef030e
* d2 9:c9dd00ab36a3
d3 10:19f476bc865c
r1 0:a61bcde8c529
r2 7:00eebaf8d2e2
$ hg glog
o 10:19f476bc865c d3 d3
|
@ 9:c9dd00ab36a3 d2 d2
|
o 8:c4b449ef030e d1 d1
|
o 7:00eebaf8d2e2 split 3 r2
|
o 6:a09ad58faae3 split 2
|
o 5:e704349bd21b split 1
|
o 0:a61bcde8c529 a1 r1
#endif
Split a non-head without rebase
$ cd $TESTTMP/d
#if obsstore-off
$ runsplit -r 1 --no-rebase
abort: cannot split changeset with children without rebase
[255]
#else
$ runsplit -r 1 --no-rebase >/dev/null
3 new orphan changesets
$ hg bookmark
d1 2:b5c5ea414030
* d2 3:f4a0a8d004cc
d3 4:777940761eba
r1 0:a61bcde8c529
r2 7:00eebaf8d2e2
$ hg glog
o 7:00eebaf8d2e2 split 3 r2
|
o 6:a09ad58faae3 split 2
|
o 5:e704349bd21b split 1
|
| * 4:777940761eba d3 d3
| |
| @ 3:f4a0a8d004cc d2 d2
| |
| * 2:b5c5ea414030 d1 d1
| |
| x 1:1df0d5c5a3ab a2
|/
o 0:a61bcde8c529 a1 r1
#endif
Split a non-head with obsoleted descendants
#if obsstore-on
$ hg init $TESTTMP/e
$ cd $TESTTMP/e
$ hg debugdrawdag <<'EOS'
> H I J
> | | |
> F G1 G2 # amend: G1 -> G2
> | | / # prune: F
> C D E
> \|/
> B
> |
> A
> EOS
2 new orphan changesets
$ eval `hg tags -T '{tag}={node}\n'`
$ rm .hg/localtags
$ hg split $B --config experimental.evolution=createmarkers
abort: split would leave orphaned changesets behind
[255]
$ cat > $TESTTMP/messages <<EOF
> Split B
> EOF
$ cat <<EOF | hg split $B
> y
> y
> EOF
diff --git a/B b/B
new file mode 100644
examine changes to 'B'? [Ynesfdaq?] y
@@ -0,0 +1,1 @@
+B
\ No newline at end of file
record this change to 'B'? [Ynesfdaq?] y
EDITOR: HG: Splitting 112478962961. Write commit message for the first split changeset.
EDITOR: B
EDITOR:
EDITOR:
EDITOR: HG: Enter commit message. Lines beginning with 'HG:' are removed.
EDITOR: HG: Leave message empty to abort commit.
EDITOR: HG: --
EDITOR: HG: user: test
EDITOR: HG: branch 'default'
EDITOR: HG: added B
created new head
rebasing 2:26805aba1e60 "C"
rebasing 3:be0ef73c17ad "D"
rebasing 4:49cb92066bfd "E"
rebasing 7:97a6268cc7ef "G2"
rebasing 10:e2f1e425c0db "J"
$ hg glog -r 'sort(all(), topo)'
o 16:556c085f8b52 J
|
o 15:8761f6c9123f G2
|
o 14:a7aeffe59b65 E
|
| o 13:e1e914ede9ab D
|/
| o 12:01947e9b98aa C
|/
o 11:0947baa74d47 Split B
|
| * 9:88ede1d5ee13 I
| |
| x 6:af8cbf225b7b G1
| |
| x 3:be0ef73c17ad D
| |
| | * 8:74863e5b5074 H
| | |
| | x 5:ee481a2a1e69 F
| | |
| | x 2:26805aba1e60 C
| |/
| x 1:112478962961 B
|/
o 0:426bada5c675 A
#endif
Preserve secret phase in split
$ cp -R $TESTTMP/clean $TESTTMP/phases1
$ cd $TESTTMP/phases1
$ hg phase --secret -fr tip
$ hg log -T '{short(node)} {phase}\n'
1df0d5c5a3ab secret
a61bcde8c529 draft
$ runsplit tip >/dev/null
$ hg log -T '{short(node)} {phase}\n'
00eebaf8d2e2 secret
a09ad58faae3 secret
e704349bd21b secret
a61bcde8c529 draft
Do not move things to secret even if phases.new-commit=secret
$ cp -R $TESTTMP/clean $TESTTMP/phases2
$ cd $TESTTMP/phases2
$ cat >> .hg/hgrc <<EOF
> [phases]
> new-commit=secret
> EOF
$ hg log -T '{short(node)} {phase}\n'
1df0d5c5a3ab draft
a61bcde8c529 draft
$ runsplit tip >/dev/null
$ hg log -T '{short(node)} {phase}\n'
00eebaf8d2e2 draft
a09ad58faae3 draft
e704349bd21b draft
a61bcde8c529 draft
`hg split` with ignoreblanklines=1 does not infinite loop
$ mkdir $TESTTMP/f
$ hg init $TESTTMP/f/a
$ cd $TESTTMP/f/a
$ printf '1\n2\n3\n4\n5\n' > foo
$ cp foo bar
$ hg ci -qAm initial
$ printf '1\n\n2\n3\ntest\n4\n5\n' > bar
$ printf '1\n2\n3\ntest\n4\n5\n' > foo
$ hg ci -qm splitme
$ cat > $TESTTMP/messages <<EOF
> split 1
> --
> split 2
> EOF
$ printf 'f\nn\nf\n' | hg --config extensions.split= --config diff.ignoreblanklines=1 split
diff --git a/bar b/bar
2 hunks, 2 lines changed
examine changes to 'bar'? [Ynesfdaq?] f
diff --git a/foo b/foo
1 hunks, 1 lines changed
examine changes to 'foo'? [Ynesfdaq?] n
EDITOR: HG: Splitting dd3c45017cbf. Write commit message for the first split changeset.
EDITOR: splitme
EDITOR:
EDITOR:
EDITOR: HG: Enter commit message. Lines beginning with 'HG:' are removed.
EDITOR: HG: Leave message empty to abort commit.
EDITOR: HG: --
EDITOR: HG: user: test
EDITOR: HG: branch 'default'
EDITOR: HG: changed bar
created new head
diff --git a/foo b/foo
1 hunks, 1 lines changed
examine changes to 'foo'? [Ynesfdaq?] f
EDITOR: HG: Splitting dd3c45017cbf. So far it has been split into:
EDITOR: HG: - f205aea1c624: split 1
EDITOR: HG: Write commit message for the next split changeset.
EDITOR: splitme
EDITOR:
EDITOR:
EDITOR: HG: Enter commit message. Lines beginning with 'HG:' are removed.
EDITOR: HG: Leave message empty to abort commit.
EDITOR: HG: --
EDITOR: HG: user: test
EDITOR: HG: branch 'default'
EDITOR: HG: changed foo
saved backup bundle to $TESTTMP/f/a/.hg/strip-backup/dd3c45017cbf-463441b5-split.hg (obsstore-off !)
Let's try that again, with a slightly different set of patches, to ensure that
the ignoreblanklines thing isn't somehow position dependent.
$ hg init $TESTTMP/f/b
$ cd $TESTTMP/f/b
$ printf '1\n2\n3\n4\n5\n' > foo
$ cp foo bar
$ hg ci -qAm initial
$ printf '1\n2\n3\ntest\n4\n5\n' > bar
$ printf '1\n2\n3\ntest\n4\n\n5\n' > foo
$ hg ci -qm splitme
$ cat > $TESTTMP/messages <<EOF
> split 1
> --
> split 2
> EOF
$ printf 'f\nn\nf\n' | hg --config extensions.split= --config diff.ignoreblanklines=1 split
diff --git a/bar b/bar
1 hunks, 1 lines changed
examine changes to 'bar'? [Ynesfdaq?] f
diff --git a/foo b/foo
2 hunks, 2 lines changed
examine changes to 'foo'? [Ynesfdaq?] n
EDITOR: HG: Splitting 904c80b40a4a. Write commit message for the first split changeset.
EDITOR: splitme
EDITOR:
EDITOR:
EDITOR: HG: Enter commit message. Lines beginning with 'HG:' are removed.
EDITOR: HG: Leave message empty to abort commit.
EDITOR: HG: --
EDITOR: HG: user: test
EDITOR: HG: branch 'default'
EDITOR: HG: changed bar
created new head
diff --git a/foo b/foo
2 hunks, 2 lines changed
examine changes to 'foo'? [Ynesfdaq?] f
EDITOR: HG: Splitting 904c80b40a4a. So far it has been split into:
EDITOR: HG: - ffecf40fa954: split 1
EDITOR: HG: Write commit message for the next split changeset.
EDITOR: splitme
EDITOR:
EDITOR:
EDITOR: HG: Enter commit message. Lines beginning with 'HG:' are removed.
EDITOR: HG: Leave message empty to abort commit.
EDITOR: HG: --
EDITOR: HG: user: test
EDITOR: HG: branch 'default'
EDITOR: HG: changed foo
saved backup bundle to $TESTTMP/f/b/.hg/strip-backup/904c80b40a4a-47fb907f-split.hg (obsstore-off !)