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httppeer: implement command executor for version 2 peer...
httppeer: implement command executor for version 2 peer Now that we have a new API for issuing commands which is compatible with wire protocol version 2, we can start using it with wire protocol version 2. This commit replaces our hacky implementation of _call() with something a bit more robust based on the new command executor interface. We now have proper support for issuing multiple commands per HTTP request. Each HTTP request maintains its own client reactor. The implementation is similar to the one in the legacy wire protocol. We use a ThreadPoolExecutor for spinning up a thread to read the HTTP response in the background. This allows responses to resolve in any order. While not implemented on the server yet, a client could use concurrent.futures.as_completed() with a collection of futures and handle responses as they arrive from the server. The return value from issued commands is still a simple list of raw or decoded CBOR data. This is still super hacky. We will want a rich data type for representing command responses. But at least this commit gets us one step closer to a proper peer implementation. Differential Revision: https://phab.mercurial-scm.org/D3297
Saurabh Singh - - Load All Authors

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test-commit-interactive-curses.t
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#require tic
Set up a repo
$ cp $HGRCPATH $HGRCPATH.pretest
$ cat <<EOF >> $HGRCPATH
> [ui]
> interactive = true
> interface = curses
> [experimental]
> crecordtest = testModeCommands
> EOF
Record with noeol at eof (issue5268)
$ hg init noeol
$ cd noeol
$ printf '0' > a
$ printf '0\n' > b
$ hg ci -Aqm initial
$ printf '1\n0' > a
$ printf '1\n0\n' > b
$ cat <<EOF >testModeCommands
> c
> EOF
$ HGEDITOR="\"sh\" \"`pwd`/editor.sh\"" hg commit -i -m "add hunks" -d "0 0"
$ cd ..
Normal repo
$ 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
[1]
$ 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
[1]
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/2b0e9be4d336-3cf0bc8c-amend.hg
$ 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 spacemovesdown
$ cat <<EOF >> $HGRCPATH
> [experimental]
> spacemovesdown = true
> EOF
$ cat <<EOF >testModeCommands
> TOGGLE
> TOGGLE
> X
> EOF
$ hg status -q
M b
M x
$ hg commit -i -m "nothing to commit?" -d "0 0"
no changes to record
[1]
Check ui.interface logic for the chunkselector
The default interface is text
$ cp $HGRCPATH.pretest $HGRCPATH
$ chunkselectorinterface() {
> $PYTHON <<EOF
> from mercurial import hg, ui;\
> repo = hg.repository(ui.ui.load(), ".");\
> 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