context: introduce p[12]copies() methods and debugp[12]copies commands
As mentioned earlier, I'm working on support for storing copy metadata
in the changeset instead of in the filelog.
In order to transition a repo from storing metadata in filelogs to
storing it in the changeset, I'm going to provide a config option for
reading the metadata from the changeset, but falling back to getting
it from the filelog if it's not in the changeset. In this compatiblity
mode, the changeset-optmized algorithms will be used. We will then
need to convert the filelog copy metadata to look like that provided
by changeset copy metadata. This patch introduces methods that do just
that.
By having these methods here, we can start writing changeset-optimized
algorithms that should work already before we add any support for
storing the metadata in the changesets.
This commit also includes new debugp[12]copies commands and exercises
them in test-copies.t.
Differential Revision: https://phab.mercurial-scm.org/D5990
Revert interactive tests
1 add and commit file f
2 add commit file folder1/g
3 add and commit file folder2/h
4 add and commit file folder1/i
5 commit change to file f
6 commit changes to files folder1/g folder2/h
7 commit changes to files folder1/g folder2/h
8 revert interactive to commit id 2 (line 3 above), check that folder1/i is removed and
9 make workdir match 7
10 run the same test than 8 from within folder1 and check same expectations
$ cat <<EOF >> $HGRCPATH
> [ui]
> interactive = true
> [extensions]
> record =
> purge =
> EOF
$ mkdir -p a/folder1 a/folder2
$ cd a
$ hg init
>>> open('f', 'wb').write(b"1\n2\n3\n4\n5\n") and None
$ hg add f ; hg commit -m "adding f"
$ cat f > folder1/g ; hg add folder1/g ; hg commit -m "adding folder1/g"
$ cat f > folder2/h ; hg add folder2/h ; hg commit -m "adding folder2/h"
$ cat f > folder1/i ; hg add folder1/i ; hg commit -m "adding folder1/i"
>>> open('f', 'wb').write(b"a\n1\n2\n3\n4\n5\nb\n") and None
$ hg commit -m "modifying f"
>>> open('folder1/g', 'wb').write(b"c\n1\n2\n3\n4\n5\nd\n") and None
$ hg commit -m "modifying folder1/g"
>>> open('folder2/h', 'wb').write(b"e\n1\n2\n3\n4\n5\nf\n") and None
$ hg commit -m "modifying folder2/h"
$ hg tip
changeset: 6:59dd6e4ab63a
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: modifying folder2/h
$ hg revert -i -r 2 --all -- << EOF
> y
> y
> y
> y
> y
> ?
> y
> n
> n
> EOF
remove added file folder1/i (Yn)? y
removing folder1/i
diff --git a/f b/f
2 hunks, 2 lines changed
examine changes to 'f'? [Ynesfdaq?] y
@@ -1,6 +1,5 @@
-a
1
2
3
4
5
apply change 1/6 to 'f'? [Ynesfdaq?] y
@@ -2,6 +1,5 @@
1
2
3
4
5
-b
apply change 2/6 to 'f'? [Ynesfdaq?] y
diff --git a/folder1/g b/folder1/g
2 hunks, 2 lines changed
examine changes to 'folder1/g'? [Ynesfdaq?] y
@@ -1,6 +1,5 @@
-c
1
2
3
4
5
apply change 3/6 to 'folder1/g'? [Ynesfdaq?] ?
y - yes, apply this change
n - no, skip this change
e - edit this change manually
s - skip remaining changes to this file
f - apply remaining changes to this file
d - done, skip remaining changes and files
a - apply all changes to all remaining files
q - quit, applying no changes
? - ? (display help)
apply change 3/6 to 'folder1/g'? [Ynesfdaq?] y
@@ -2,6 +1,5 @@
1
2
3
4
5
-d
apply change 4/6 to 'folder1/g'? [Ynesfdaq?] n
diff --git a/folder2/h b/folder2/h
2 hunks, 2 lines changed
examine changes to 'folder2/h'? [Ynesfdaq?] n
reverting f
reverting folder1/g
$ cat f
1
2
3
4
5
$ cat folder1/g
1
2
3
4
5
d
$ cat folder2/h
e
1
2
3
4
5
f
Test that --interactive lift the need for --all
$ echo q | hg revert -i -r 2
diff --git a/folder1/g b/folder1/g
1 hunks, 1 lines changed
examine changes to 'folder1/g'? [Ynesfdaq?] q
abort: user quit
[255]
$ ls folder1/
g
Test that a noop revert doesn't do an unnecessary backup
$ (echo y; echo n) | hg revert -i -r 2 folder1/g
diff --git a/folder1/g b/folder1/g
1 hunks, 1 lines changed
examine changes to 'folder1/g'? [Ynesfdaq?] y
@@ -3,4 +3,3 @@
3
4
5
-d
apply this change to 'folder1/g'? [Ynesfdaq?] n
$ ls folder1/
g
Test --no-backup
$ (echo y; echo y) | hg revert -i -C -r 2 folder1/g
diff --git a/folder1/g b/folder1/g
1 hunks, 1 lines changed
examine changes to 'folder1/g'? [Ynesfdaq?] y
@@ -3,4 +3,3 @@
3
4
5
-d
apply this change to 'folder1/g'? [Ynesfdaq?] y
$ ls folder1/
g
>>> open('folder1/g', 'wb').write(b"1\n2\n3\n4\n5\nd\n") and None
$ hg update -C 6
3 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg revert -i -r 2 --all -- << EOF
> n
> y
> y
> y
> y
> y
> n
> n
> EOF
remove added file folder1/i (Yn)? n
diff --git a/f b/f
2 hunks, 2 lines changed
examine changes to 'f'? [Ynesfdaq?] y
@@ -1,6 +1,5 @@
-a
1
2
3
4
5
apply change 1/6 to 'f'? [Ynesfdaq?] y
@@ -2,6 +1,5 @@
1
2
3
4
5
-b
apply change 2/6 to 'f'? [Ynesfdaq?] y
diff --git a/folder1/g b/folder1/g
2 hunks, 2 lines changed
examine changes to 'folder1/g'? [Ynesfdaq?] y
@@ -1,6 +1,5 @@
-c
1
2
3
4
5
apply change 3/6 to 'folder1/g'? [Ynesfdaq?] y
@@ -2,6 +1,5 @@
1
2
3
4
5
-d
apply change 4/6 to 'folder1/g'? [Ynesfdaq?] n
diff --git a/folder2/h b/folder2/h
2 hunks, 2 lines changed
examine changes to 'folder2/h'? [Ynesfdaq?] n
reverting f
reverting folder1/g
$ cat f
1
2
3
4
5
$ cat folder1/g
1
2
3
4
5
d
$ cat folder2/h
e
1
2
3
4
5
f
$ hg st
M f
M folder1/g
$ hg revert --interactive f << EOF
> y
> ?
> y
> n
> n
> EOF
diff --git a/f b/f
2 hunks, 2 lines changed
examine changes to 'f'? [Ynesfdaq?] y
@@ -1,6 +1,5 @@
-a
1
2
3
4
5
discard change 1/2 to 'f'? [Ynesfdaq?] ?
y - yes, discard this change
n - no, skip this change
e - edit this change manually
s - skip remaining changes to this file
f - discard remaining changes to this file
d - done, skip remaining changes and files
a - discard all changes to all remaining files
q - quit, discarding no changes
? - ? (display help)
discard change 1/2 to 'f'? [Ynesfdaq?] y
@@ -2,6 +1,5 @@
1
2
3
4
5
-b
discard change 2/2 to 'f'? [Ynesfdaq?] n
$ hg st
M f
M folder1/g
? f.orig
$ cat f
a
1
2
3
4
5
$ cat f.orig
1
2
3
4
5
$ rm f.orig
$ hg update -C .
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
Check editing files newly added by a revert
1) Create a dummy editor changing 1 to 42
$ cat > $TESTTMP/editor.sh << '__EOF__'
> cat "$1" | sed "s/1/42/g" > tt
> mv tt "$1"
> __EOF__
2) Add k
$ printf "1\n" > k
$ hg add k
$ hg commit -m "add k"
3) Use interactive revert with editing (replacing +1 with +42):
$ printf "0\n2\n" > k
$ HGEDITOR="\"sh\" \"${TESTTMP}/editor.sh\"" hg revert -i <<EOF
> y
> e
> EOF
diff --git a/k b/k
1 hunks, 2 lines changed
examine changes to 'k'? [Ynesfdaq?] y
@@ -1,1 +1,2 @@
-1
+0
+2
discard this change to 'k'? [Ynesfdaq?] e
reverting k
$ cat k
42
$ hg update -C .
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg purge
$ touch newfile
$ hg add newfile
$ hg status
A newfile
$ hg revert -i <<EOF
> n
> EOF
forget added file newfile (Yn)? n
$ hg status
A newfile
$ hg revert -i <<EOF
> y
> EOF
forget added file newfile (Yn)? y
forgetting newfile
$ hg status
? newfile
When a line without EOL is selected during "revert -i" (issue5651)
$ hg init $TESTTMP/revert-i-eol
$ cd $TESTTMP/revert-i-eol
$ echo 0 > a
$ hg ci -qAm 0
$ printf 1 >> a
$ hg ci -qAm 1
$ cat a
0
1 (no-eol)
$ hg revert -ir'.^' <<EOF
> y
> y
> EOF
diff --git a/a b/a
1 hunks, 1 lines changed
examine changes to 'a'? [Ynesfdaq?] y
@@ -1,2 +1,1 @@
0
-1
\ No newline at end of file
apply this change to 'a'? [Ynesfdaq?] y
reverting a
$ cat a
0
When specified pattern does not exist, we should exit early (issue5789).
$ hg files
a
$ hg rev b
b: no such file in rev b40d1912accf
$ hg rev -i b
b: no such file in rev b40d1912accf
$ cd ..
Prompt before undeleting file(issue6008)
$ hg init repo
$ cd repo
$ echo a > a
$ hg ci -qAm a
$ hg rm a
$ hg revert -i<<EOF
> y
> EOF
add back removed file a (Yn)? y
undeleting a
$ ls
a
$ hg rm a
$ hg revert -i<<EOF
> n
> EOF
add back removed file a (Yn)? n
$ ls
$ cd ..