convert: add support to detect git renames and copies
Git is fairly unique among VCSes in that it doesn't record copies and renames,
instead choosing to detect them on the fly. Since Mercurial expects copies and
renames to be recorded, it can be valuable to preserve this history while
converting a Git repository to Mercurial. This patch adds a new convert option,
called 'convert.git.similarity', which determines how similar files must be to
be treated as renames or copies.
$ echo "[extensions]" >> $HGRCPATH
$ echo "mq=" >> $HGRCPATH
$ echo "[mq]" >> $HGRCPATH
$ echo "git=keep" >> $HGRCPATH
$ hg init a
$ cd a
$ echo 'base' > base
$ hg ci -Ambase
adding base
$ hg qnew -mmqbase mqbase
$ echo 'patched' > base
$ hg qrefresh
qdiff:
$ hg qdiff
diff -r d20a80d4def3 base
--- a/base Thu Jan 01 00:00:00 1970 +0000
+++ b/base* (glob)
@@ -1,1 +1,1 @@
-base
+patched
qdiff dirname:
$ hg qdiff --nodates .
diff -r d20a80d4def3 base
--- a/base
+++ b/base
@@ -1,1 +1,1 @@
-base
+patched
qdiff filename:
$ hg qdiff --nodates base
diff -r d20a80d4def3 base
--- a/base
+++ b/base
@@ -1,1 +1,1 @@
-base
+patched
$ hg revert -a
$ hg qpop
popping mqbase
patch queue now empty
$ hg qdelete mqbase
$ printf '1\n2\n3\n4\nhello world\ngoodbye world\n7\n8\n9\n' > lines
$ hg ci -Amlines -d '2 0'
adding lines
$ hg qnew -mmqbase2 mqbase2
$ printf '\n\n1\n2\n3\n4\nhello world\n goodbye world\n7\n8\n9\n' > lines
$ hg qdiff --nodates -U 1
diff -r b0c220e1cf43 lines
--- a/lines
+++ b/lines
@@ -1,1 +1,3 @@
+
+
1
@@ -4,4 +6,4 @@
4
-hello world
-goodbye world
+hello world
+ goodbye world
7
$ hg qdiff --nodates -b
diff -r b0c220e1cf43 lines
--- a/lines
+++ b/lines
@@ -1,9 +1,11 @@
+
+
1
2
3
4
hello world
-goodbye world
+ goodbye world
7
8
9
$ hg qdiff --nodates -U 1 -B
diff -r b0c220e1cf43 lines
--- a/lines
+++ b/lines
@@ -4,4 +4,4 @@
4
-hello world
-goodbye world
+hello world
+ goodbye world
7
$ hg qdiff --nodates -w
diff -r b0c220e1cf43 lines
--- a/lines
+++ b/lines
@@ -1,3 +1,5 @@
+
+
1
2
3
$ hg qdiff --nodates --reverse
diff -r b0c220e1cf43 lines
--- a/lines
+++ b/lines
@@ -1,11 +1,9 @@
-
-
1
2
3
4
-hello world
- goodbye world
+hello world
+goodbye world
7
8
9
qdiff preserve existing git flag:
$ hg qrefresh --git
$ echo a >> lines
$ hg qdiff
diff --git a/lines b/lines
--- a/lines
+++ b/lines
@@ -1,9 +1,12 @@
+
+
1
2
3
4
-hello world
-goodbye world
+hello world
+ goodbye world
7
8
9
+a
$ hg qdiff --stat
lines | 7 +++++--
1 files changed, 5 insertions(+), 2 deletions(-)
$ hg qrefresh
qdiff when file deleted (but not removed) in working dir:
$ hg qnew deleted-file
$ echo a > newfile
$ hg add newfile
$ hg qrefresh
$ rm newfile
$ hg qdiff
$ cd ..