crecord: re-enable reviewing a patch before comitting it
The "r" option for this feature was copied into Mercurial from
crecord, but the actual implementation never made it into hg until
now. It's a moderately useful feature that allows the user to edit the
patch in a text editor before comitting it for good.
This requires a test, so we must also enable a corresponding testing
'R' option that skips the confirmation dialogue. In addition, we also
need a help text for the editor when reviewing the final patch.
As for why this is a useful feature if we can already edit hunks in an
editor, I would like to offer the following points:
* editing hunks does not show the entire patch all at once
** furthermore, the hunk "tree" in the TUI has no root that could be
selected for edition
* it is helpful to be able to see the entire final patch for
confirmation
** within this view, the unselected hunks are hidden, which is
visusally cleaner
** this works as a final review of the complete result, which is
a bit more difficult to do conceptually via hunk editing
* this feature was already in crecord, so it was an oversight to
not bring it to core
* it works and is consistent with editing hunks
Set up a repo
$ cp $HGRCPATH $HGRCPATH.pretest
$ cat <<EOF >> $HGRCPATH
> [ui]
> interactive = true
> interface = curses
> [experimental]
> crecordtest = testModeCommands
> EOF
$ hg init a
$ cd a
Committing some changes but stopping on the way
$ echo "a" > a
$ hg add a
$ cat <<EOF >testModeCommands
> TOGGLE
> X
> EOF
$ hg commit -i -m "a" -d "0 0"
no changes to record
$ hg tip
changeset: -1:000000000000
tag: tip
user:
date: Thu Jan 01 00:00:00 1970 +0000
Committing some changes
$ cat <<EOF >testModeCommands
> X
> EOF
$ hg commit -i -m "a" -d "0 0"
$ hg tip
changeset: 0:cb9a9f314b8b
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: a
Check that commit -i works with no changes
$ hg commit -i
no changes to record
Committing only one file
$ echo "a" >> a
>>> open('b', 'wb').write("1\n2\n3\n4\n5\n6\n7\n8\n9\n10\n")
$ hg add b
$ cat <<EOF >testModeCommands
> TOGGLE
> KEY_DOWN
> X
> EOF
$ hg commit -i -m "one file" -d "0 0"
$ hg tip
changeset: 1:fb2705a663ea
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: one file
$ hg cat -r tip a
a
$ cat a
a
a
Committing only one hunk while aborting edition of hunk
- Untoggle all the hunks, go down to the second file
- unfold it
- go down to second hunk (1 for the first hunk, 1 for the first hunkline, 1 for the second hunk, 1 for the second hunklike)
- toggle the second hunk
- toggle on and off the amend mode (to check that it toggles off)
- edit the hunk and quit the editor immediately with non-zero status
- commit
$ printf "printf 'editor ran\n'; exit 1" > editor.sh
$ echo "x" > c
$ cat b >> c
$ echo "y" >> c
$ mv c b
$ cat <<EOF >testModeCommands
> A
> KEY_DOWN
> f
> KEY_DOWN
> KEY_DOWN
> KEY_DOWN
> KEY_DOWN
> TOGGLE
> a
> a
> e
> X
> EOF
$ HGEDITOR="\"sh\" \"`pwd`/editor.sh\"" hg commit -i -m "one hunk" -d "0 0"
editor ran
$ rm editor.sh
$ hg tip
changeset: 2:7d10dfe755a8
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: one hunk
$ hg cat -r tip b
1
2
3
4
5
6
7
8
9
10
y
$ cat b
x
1
2
3
4
5
6
7
8
9
10
y
$ hg commit -m "other hunks"
$ hg tip
changeset: 3:a6735021574d
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: other hunks
$ hg cat -r tip b
x
1
2
3
4
5
6
7
8
9
10
y
Newly added files can be selected with the curses interface
$ hg update -C .
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo "hello" > x
$ hg add x
$ cat <<EOF >testModeCommands
> TOGGLE
> TOGGLE
> X
> EOF
$ hg st
A x
? testModeCommands
$ hg commit -i -m "newly added file" -d "0 0"
$ hg st
? testModeCommands
Amend option works
$ echo "hello world" > x
$ hg diff -c .
diff -r a6735021574d -r 2b0e9be4d336 x
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/x Thu Jan 01 00:00:00 1970 +0000
@@ -0,0 +1,1 @@
+hello
$ cat <<EOF >testModeCommands
> a
> X
> EOF
$ hg commit -i -m "newly added file" -d "0 0"
saved backup bundle to $TESTTMP/a/.hg/strip-backup/2b0e9be4d336-28bbe4e2-amend-backup.hg (glob)
$ hg diff -c .
diff -r a6735021574d -r c1d239d165ae x
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/x Thu Jan 01 00:00:00 1970 +0000
@@ -0,0 +1,1 @@
+hello world
Editing a hunk puts you back on that hunk when done editing (issue5041)
To do that, we change two lines in a file, pretend to edit the second line,
exit, toggle the line selected at the end of the edit and commit.
The first line should be recorded if we were put on the second line at the end
of the edit.
$ hg update -C .
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo "foo" > x
$ echo "hello world" >> x
$ echo "bar" >> x
$ cat <<EOF >testModeCommands
> f
> KEY_DOWN
> KEY_DOWN
> KEY_DOWN
> KEY_DOWN
> e
> TOGGLE
> X
> EOF
$ printf "printf 'editor ran\n'; exit 0" > editor.sh
$ HGEDITOR="\"sh\" \"`pwd`/editor.sh\"" hg commit -i -m "edit hunk" -d "0 0"
editor ran
$ hg cat -r . x
foo
hello world
Testing the review option. The entire final filtered patch should show
up in the editor and be editable. We will unselect the second file and
the first hunk of the third file. During review, we will decide that
"lower" sounds better than "bottom", and the final commit should
reflect this edition.
$ hg update -C .
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo "top" > c
$ cat x >> c
$ echo "bottom" >> c
$ mv c x
$ echo "third a" >> a
$ echo "we will unselect this" >> b
$ cat > editor.sh <<EOF
> cat "\$1"
> cat "\$1" | sed s/bottom/lower/ > tmp
> mv tmp "\$1"
> EOF
$ cat > testModeCommands <<EOF
> KEY_DOWN
> TOGGLE
> KEY_DOWN
> f
> KEY_DOWN
> TOGGLE
> R
> EOF
$ HGEDITOR="\"sh\" \"`pwd`/editor.sh\"" hg commit -i -m "review hunks" -d "0 0"
# To remove '-' lines, make them ' ' lines (context).
# To remove '+' lines, delete them.
# Lines starting with # will be removed from the patch.
#
# If the patch applies cleanly, the edited patch will immediately
# be finalised. If it does not apply cleanly, rejects files will be
# generated. You can use those when you try again.
diff --git a/a b/a
--- a/a
+++ b/a
@@ -1,2 +1,3 @@
a
a
+third a
diff --git a/x b/x
--- a/x
+++ b/x
@@ -1,2 +1,3 @@
foo
hello world
+bottom
$ hg cat -r . a
a
a
third a
$ hg cat -r . b
x
1
2
3
4
5
6
7
8
9
10
y
$ hg cat -r . x
foo
hello world
lower
Check ui.interface logic for the chunkselector
The default interface is text
$ cp $HGRCPATH.pretest $HGRCPATH
$ chunkselectorinterface() {
> python <<EOF
> from mercurial import hg, ui, parsers;\
> repo = hg.repository(ui.ui(), ".");\
> print repo.ui.interface("chunkselector")
> EOF
> }
$ chunkselectorinterface
text
If only the default is set, we'll use that for the feature, too
$ cp $HGRCPATH.pretest $HGRCPATH
$ cat <<EOF >> $HGRCPATH
> [ui]
> interface = curses
> EOF
$ chunkselectorinterface
curses
It is possible to override the default interface with a feature specific
interface
$ cp $HGRCPATH.pretest $HGRCPATH
$ cat <<EOF >> $HGRCPATH
> [ui]
> interface = text
> interface.chunkselector = curses
> EOF
$ chunkselectorinterface
curses
$ cp $HGRCPATH.pretest $HGRCPATH
$ cat <<EOF >> $HGRCPATH
> [ui]
> interface = curses
> interface.chunkselector = text
> EOF
$ chunkselectorinterface
text
If a bad interface name is given, we use the default value (with a nice
error message to suggest that the configuration needs to be fixed)
$ cp $HGRCPATH.pretest $HGRCPATH
$ cat <<EOF >> $HGRCPATH
> [ui]
> interface = blah
> EOF
$ chunkselectorinterface
invalid value for ui.interface: blah (using text)
text
$ cp $HGRCPATH.pretest $HGRCPATH
$ cat <<EOF >> $HGRCPATH
> [ui]
> interface = curses
> interface.chunkselector = blah
> EOF
$ chunkselectorinterface
invalid value for ui.interface.chunkselector: blah (using curses)
curses
$ cp $HGRCPATH.pretest $HGRCPATH
$ cat <<EOF >> $HGRCPATH
> [ui]
> interface = blah
> interface.chunkselector = curses
> EOF
$ chunkselectorinterface
invalid value for ui.interface: blah
curses
$ cp $HGRCPATH.pretest $HGRCPATH
$ cat <<EOF >> $HGRCPATH
> [ui]
> interface = blah
> interface.chunkselector = blah
> EOF
$ chunkselectorinterface
invalid value for ui.interface: blah
invalid value for ui.interface.chunkselector: blah (using text)
text