filectx: fix cmp() of file starting with '\1\n'
If file data starts with '\1\n', it will be escaped in the revlog to
create an empty metadata block, thus adding four bytes to the size in
the revlog size index. There's no way to detect that this has happened
in filelog.size() faster than decompressing each revision [1].
For filectx.cmp(), we have the size of the file in the working directory
available. If it differs by exactly four bytes, it may be this case, so
do a full comparison.
[1]: http://markmail.org/message/5akdbmmqx7vq2fsg
$ cat >> $HGRCPATH <<EOF
> [extensions]
> graphlog=
> rebase=
> mq=
>
> [mq]
> plain=true
>
> [alias]
> tglog = log -G --template "{rev}: '{desc}' tags: {tags}\n"
> EOF
$ hg init a
$ cd a
$ hg qinit -c
$ echo c1 > f
$ hg add f
$ hg ci -m C1
$ echo r1 > f
$ hg ci -m R1
$ hg up -q 0
$ hg qnew f.patch
$ echo mq1 > f
$ hg qref -m P0
$ hg qnew f2.patch
$ echo mq2 > f
$ hg qref -m P1
$ hg tglog
@ 3: 'P1' tags: f2.patch qtip tip
|
o 2: 'P0' tags: f.patch qbase
|
| o 1: 'R1' tags:
|/
o 0: 'C1' tags: qparent
Rebase - try to rebase on an applied mq patch:
$ hg rebase -s 1 -d 3
abort: cannot rebase onto an applied mq patch
[255]
Rebase - same thing, but mq patch is default dest:
$ hg up -q 1
$ hg rebase
abort: cannot rebase onto an applied mq patch
[255]
$ hg up -q qtip
Rebase - generate a conflict:
$ hg rebase -s 2 -d 1
merging f
warning: conflicts during merge.
merging f failed!
abort: unresolved conflicts (see hg resolve, then hg rebase --continue)
[255]
Fix the 1st conflict:
$ echo mq1r1 > f
$ hg resolve -m f
$ hg rebase -c
merging f
warning: conflicts during merge.
merging f failed!
abort: unresolved conflicts (see hg resolve, then hg rebase --continue)
[255]
Fix the 2nd conflict:
$ echo mq1r1mq2 > f
$ hg resolve -m f
$ hg rebase -c
saved backup bundle to $TESTTMP/a/.hg/strip-backup/*-backup.hg (glob)
$ hg tglog
@ 3: 'P1' tags: f2.patch qtip tip
|
o 2: 'P0' tags: f.patch qbase
|
o 1: 'R1' tags: qparent
|
o 0: 'C1' tags:
$ hg up -q qbase
$ cat f
mq1r1
$ cat .hg/patches/f.patch
# HG changeset patch
# User test
# Date ?????????? ? (glob)
# Node ID ???????????????????????????????????????? (glob)
# Parent bac9ed9960d8992bcad75864a879fa76cadaf1b0
P0
diff -r bac9ed9960d8 -r ???????????? f (glob)
--- a/f Thu Jan 01 00:00:00 1970 +0000
+++ b/f ??? ??? ?? ??:??:?? ???? ????? (glob)
@@ -1,1 +1,1 @@
-r1
+mq1r1
Update to qtip:
$ hg up -q qtip
$ cat f
mq1r1mq2
$ cat .hg/patches/f2.patch
# HG changeset patch
# User test
# Date ?????????? ? (glob)
# Node ID ???????????????????????????????????????? (glob)
# Parent ???????????????????????????????????????? (glob)
P1
diff -r ???????????? -r ???????????? f (glob)
--- a/f ??? ??? ?? ??:??:?? ???? ????? (glob)
+++ b/f ??? ??? ?? ??:??:?? ???? ????? (glob)
@@ -1,1 +1,1 @@
-mq1r1
+mq1r1mq2
Adding one git-style patch and one normal:
$ hg qpop -a
popping f2.patch
popping f.patch
patch queue now empty
$ rm -fr .hg/patches
$ hg qinit -c
$ hg up -q 0
$ hg qnew --git f_git.patch
$ echo mq1 > p
$ hg add p
$ hg qref --git -m 'P0 (git)'
$ hg qnew f.patch
$ echo mq2 > p
$ hg qref -m P1
$ hg qci -m 'save patch state'
$ hg qseries -s
f_git.patch: P0 (git)
f.patch: P1
$ hg -R .hg/patches manifest
.hgignore
f.patch
f_git.patch
series
$ cat .hg/patches/f_git.patch
P0 (git)
diff --git a/p b/p
new file mode 100644
--- /dev/null
+++ b/p
@@ -0,0 +1,1 @@
+mq1
$ cat .hg/patches/f.patch
P1
diff -r ???????????? p (glob)
--- a/p ??? ??? ?? ??:??:?? ???? ????? (glob)
+++ b/p ??? ??? ?? ??:??:?? ???? ????? (glob)
@@ -1,1 +1,1 @@
-mq1
+mq2
Rebase the applied mq patches:
$ hg rebase -s 2 -d 1
saved backup bundle to $TESTTMP/a/.hg/strip-backup/*-backup.hg (glob)
$ hg qci -m 'save patch state'
$ hg qseries -s
f_git.patch: P0 (git)
f.patch: P1
$ hg -R .hg/patches manifest
.hgignore
f.patch
f_git.patch
series
$ cat .hg/patches/f_git.patch
# HG changeset patch
# User test
# Date ?????????? ? (glob)
# Node ID ???????????????????????????????????????? (glob)
# Parent bac9ed9960d8992bcad75864a879fa76cadaf1b0
P0 (git)
diff --git a/p b/p
new file mode 100644
--- /dev/null
+++ b/p
@@ -0,0 +1,1 @@
+mq1
$ cat .hg/patches/f.patch
# HG changeset patch
# User test
# Date ?????????? ? (glob)
# Node ID ???????????????????????????????????????? (glob)
# Parent ???????????????????????????????????????? (glob)
P1
diff -r ???????????? -r ???????????? p (glob)
--- a/p ??? ??? ?? ??:??:?? ???? ????? (glob)
+++ b/p ??? ??? ?? ??:??:?? ???? ????? (glob)
@@ -1,1 +1,1 @@
-mq1
+mq2
Rebase with guards
$ hg init foo
$ cd foo
$ echo a > a
$ hg ci -Am a
adding a
Create mq repo with guarded patches foo and bar:
$ hg qinit
$ hg qnew foo
$ hg qguard foo +baz
$ echo foo > foo
$ hg add foo
$ hg qref
$ hg qpop
popping foo
patch queue now empty
$ hg qnew bar
$ hg qguard bar +baz
$ echo bar > bar
$ hg add bar
$ hg qref
$ hg qguard -l
bar: +baz
foo: +baz
$ hg tglog
@ 1:* '[mq]: bar' tags: bar qbase qtip tip (glob)
|
o 0:* 'a' tags: qparent (glob)
Create new head to rebase bar onto:
$ hg up -C 0
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ echo b > b
$ hg add b
$ hg ci -m b
created new head
$ hg up -C 1
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ echo a >> a
$ hg qref
$ hg tglog
@ 2:* '[mq]: bar' tags: bar qbase qtip tip (glob)
|
| o 1:* 'b' tags: (glob)
|/
o 0:* 'a' tags: qparent (glob)
Rebase bar (make sure series order is preserved):
$ hg qseries
bar
foo
$ hg -q rebase -d 1
$ hg qseries
bar
foo
$ hg qguard -l
bar: +baz
foo: +baz
$ hg tglog
@ 2:* '[mq]: bar' tags: bar qbase qtip tip (glob)
|
o 1:* 'b' tags: qparent (glob)
|
o 0:* 'a' tags: (glob)