% help
mq extension - manage a stack of patches

This extension lets you work with a stack of patches in a Mercurial
repository. It manages two stacks of patches - all known patches, and applied
patches (subset of known patches).

Known patches are represented as patch files in the .hg/patches directory.
Applied patches are both patch files and changesets.

Common tasks (use "hg help command" for more details):

  prepare repository to work with patches   qinit
  create new patch                          qnew
  import existing patch                     qimport

  print patch series                        qseries
  print applied patches                     qapplied

  add known patch to applied stack          qpush
  remove patch from applied stack           qpop
  refresh contents of top applied patch     qrefresh

By default, mq will automatically use git patches when required to avoid
losing file mode changes, copy records, binary files or empty files creations
or deletions. This behaviour can be configured with:

  [mq]
  git = auto/keep/yes/no

If set to 'keep', mq will obey the [diff] section configuration while
preserving existing git patches upon qrefresh. If set to 'yes' or 'no', mq
will override the [diff] section and always generate git or regular patches,
possibly losing data in the second case.

list of commands:

 qapplied     print the patches already applied
 qclone       clone main and patch repository at same time
 qcommit      commit changes in the queue repository
 qdelete      remove patches from queue
 qdiff        diff of the current patch and subsequent modifications
 qfinish      move applied patches into repository history
 qfold        fold the named patches into the current patch
 qgoto        push or pop patches until named patch is at top of stack
 qguard       set or print guards for a patch
 qheader      print the header of the topmost or specified patch
 qimport      import a patch
 qinit        init a new queue repository
 qnew         create a new patch
 qnext        print the name of the next patch
 qpop         pop the current patch off the stack
 qprev        print the name of the previous patch
 qpush        push the next patch onto the stack
 qrefresh     update the current patch
 qrename      rename a patch
 qselect      set or print guarded patches to push
 qseries      print the entire series file
 qtop         print the name of the current patch
 qunapplied   print the patches not yet applied
 strip        strip a revision and all its descendants from the repository

use "hg -v help mq" to show aliases and global options
adding a
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
adding b/z
% qinit
% -R qinit
% qinit -c
A .hgignore
A series
% qinit; qinit -c
  .hgignore:
^\.hg
^\.mq
syntax: glob
status
guards
  series:
abort: repository already exists!
% qinit; <stuff>; qinit -c
adding .hg/patches/A
adding .hg/patches/B
A .hgignore
A A
A B
A series
  .hgignore:
status
bleh
  series:
A
B
% qrefresh
foo bar

diff -r  xa
--- a/a
+++ b/a
@@ -1,1 +1,2 @@
 a
+a
% empty qrefresh
revision:
patch:
foo bar

working dir diff:
--- a/a
+++ b/a
@@ -1,1 +1,2 @@
 a
+a
% qpop
popping test.patch
patch queue now empty
% qpush with dump of tag cache
.hg/tags.cache (pre qpush):
1

applying test.patch
now at: test.patch
.hg/tags.cache (post qpush):
2

% pop/push outside repo
popping test.patch
patch queue now empty
applying test.patch
now at: test.patch
% qrefresh in subdir
% pop/push -a in subdir
popping test2.patch
popping test.patch
patch queue now empty
applying test.patch
applying test2.patch
now at: test2.patch
% qseries
test.patch
test2.patch
0 A test.patch: f...
1 A test2.patch: 
popping test2.patch
now at: test.patch
0 A test.patch: foo bar
1 U test2.patch: 
applying test2.patch
now at: test2.patch
% qapplied
test.patch
test2.patch
% qtop
test2.patch
% prev
test.patch
% next
all patches applied
popping test2.patch
now at: test.patch
% commit should fail
abort: cannot commit over an applied mq patch
% push should fail
pushing to ../../k
abort: source has mq patches applied
% import should fail
abort: cannot import over an applied patch
% import --no-commit should succeed
applying ../../import.diff
M a
% qunapplied
test2.patch
% qpush/qpop with index
applying test2.patch
now at: test2.patch
popping test2.patch
popping test1b.patch
now at: test.patch
applying test1b.patch
now at: test1b.patch
applying test2.patch
now at: test2.patch
popping test2.patch
now at: test1b.patch
popping test1b.patch
now at: test.patch
applying test1b.patch
applying test2.patch
now at: test2.patch
% pop, qapplied, qunapplied
0 A test.patch
1 A test1b.patch
2 A test2.patch
% qapplied -1 test.patch
only one patch applied
% qapplied -1 test1b.patch
test.patch
% qapplied -1 test2.patch
test1b.patch
% qapplied -1
test1b.patch
% qapplied
test.patch
test1b.patch
test2.patch
% qapplied test1b.patch
test.patch
test1b.patch
% qunapplied -1
all patches applied
% qunapplied
% popping
popping test2.patch
now at: test1b.patch
% qunapplied -1
test2.patch
% qunapplied
test2.patch
% qunapplied test2.patch
% qunapplied -1 test2.patch
all patches applied
% popping -a
popping test1b.patch
popping test.patch
patch queue now empty
% qapplied
% qapplied -1
no patches applied
applying test.patch
now at: test.patch
% push should succeed
popping test.patch
patch queue now empty
pushing to ../../k
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
% qpush/qpop error codes
applying test.patch
applying test1b.patch
applying test2.patch
now at: test2.patch
  % pops all patches and succeeds
popping test2.patch
popping test1b.patch
popping test.patch
patch queue now empty
  qpop -a succeeds
  % does nothing and succeeds
no patches applied
  qpop -a succeeds
  % fails - nothing else to pop
no patches applied
  qpop fails
  % pushes a patch and succeeds
applying test.patch
now at: test.patch
  qpush succeeds
  % pops a patch and succeeds
popping test.patch
patch queue now empty
  qpop succeeds
  % pushes up to test1b.patch and succeeds
applying test.patch
applying test1b.patch
now at: test1b.patch
  qpush test1b.patch succeeds
  % does nothing and succeeds
qpush: test1b.patch is already at the top
  qpush test1b.patch succeeds
  % does nothing and succeeds
qpop: test1b.patch is already at the top
  qpop test1b.patch succeeds
  % fails - can't push to this patch
abort: cannot push to a previous patch: test.patch
  qpush test.patch fails
  % fails - can't pop to this patch
abort: patch test2.patch is not applied
  qpop test2.patch fails
  % pops up to test.patch and succeeds
popping test1b.patch
now at: test.patch
  qpop test.patch succeeds
  % pushes all patches and succeeds
applying test1b.patch
applying test2.patch
now at: test2.patch
  qpush -a succeeds
  % does nothing and succeeds
all patches are currently applied
  qpush -a succeeds
  % fails - nothing else to push
patch series already fully applied
  qpush fails
  % does nothing and succeeds
qpush: test2.patch is already at the top
  qpush test2.patch succeeds
% strip
adding x
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
saving bundle to 
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
(run 'hg update' to get a working copy)
% strip with local changes, should complain
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
abort: local changes found
% --force strip with local changes
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
saving bundle to 
% cd b; hg qrefresh
adding a
foo

diff -r cb9a9f314b8b a
--- a/a
+++ b/a
@@ -1,1 +1,2 @@
 a
+a
diff -r cb9a9f314b8b b/f
--- /dev/null
+++ b/b/f
@@ -0,0 +1,1 @@
+f
% hg qrefresh .
foo

diff -r cb9a9f314b8b b/f
--- /dev/null
+++ b/b/f
@@ -0,0 +1,1 @@
+f
M a
% qpush failure
popping bar
popping foo
patch queue now empty
applying foo
applying bar
file foo already exists
1 out of 1 hunks FAILED -- saving rejects to file foo.rej
patch failed, unable to continue (try -v)
patch failed, rejects left in working dir
errors during apply, please fix and refresh bar
? foo
? foo.rej
% mq tags
0 qparent
1 qbase foo
2 qtip bar tip
% bad node in status
popping bar
now at: foo
changeset:   0:cb9a9f314b8b
mq status file refers to unknown node
tag:         tip
user:        test
date:        Thu Jan 01 00:00:00 1970 +0000
summary:     a

mq status file refers to unknown node
default                        0:cb9a9f314b8b
abort: trying to pop unknown node
new file

diff --git a/new b/new
new file mode 100755
--- /dev/null
+++ b/new
@@ -0,0 +1,1 @@
+foo
copy file

diff --git a/new b/copy
copy from new
copy to copy
popping copy
now at: new
applying copy
now at: copy
diff --git a/new b/copy
copy from new
copy to copy
diff --git a/new b/copy
copy from new
copy to copy
% test file addition in slow path
1 files updated, 0 files merged, 2 files removed, 0 files unresolved
created new head
2 files updated, 0 files merged, 1 files removed, 0 files unresolved
popping bar
adding branch
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
patch queue now empty
(working directory not at a head)
applying bar
now at: bar
diff --git a/bar b/bar
new file mode 100644
--- /dev/null
+++ b/bar
@@ -0,0 +1,1 @@
+bar
diff --git a/foo b/baz
rename from foo
rename to baz
2 baz (foo)
diff --git a/bar b/bar
new file mode 100644
--- /dev/null
+++ b/bar
@@ -0,0 +1,1 @@
+bar
diff --git a/foo b/baz
rename from foo
rename to baz
2 baz (foo)
diff --git a/bar b/bar
diff --git a/foo b/baz
% test file move chains in the slow path
1 files updated, 0 files merged, 2 files removed, 0 files unresolved
2 files updated, 0 files merged, 1 files removed, 0 files unresolved
popping bar
adding branch
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
patch queue now empty
(working directory not at a head)
applying bar
now at: bar
diff --git a/foo b/bleh
rename from foo
rename to bleh
diff --git a/quux b/quux
new file mode 100644
--- /dev/null
+++ b/quux
@@ -0,0 +1,1 @@
+bar
3 bleh (foo)
diff --git a/foo b/barney
rename from foo
rename to barney
diff --git a/fred b/fred
new file mode 100644
--- /dev/null
+++ b/fred
@@ -0,0 +1,1 @@
+bar
3 barney (foo)
% refresh omitting an added file
C newfile
A newfile
popping baz
now at: bar
% create a git patch
diff --git a/alexander b/alexander
% create a git binary patch
8ba2a2f3e77b55d03051ff9c24ad65e7  bucephalus
diff --git a/bucephalus b/bucephalus
% check binary patches can be popped and pushed
popping addbucephalus
now at: addalexander
applying addbucephalus
now at: addbucephalus
8ba2a2f3e77b55d03051ff9c24ad65e7  bucephalus
% strip again
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
created new head
merging foo
0 files updated, 1 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
changeset:   3:99615015637b
tag:         tip
parent:      2:20cbbe65cff7
parent:      1:d2871fc282d4
user:        test
date:        Thu Jan 01 00:00:00 1970 +0000
summary:     merge

changeset:   2:20cbbe65cff7
parent:      0:53245c60e682
user:        test
date:        Thu Jan 01 00:00:00 1970 +0000
summary:     change foo 2

changeset:   1:d2871fc282d4
user:        test
date:        Thu Jan 01 00:00:00 1970 +0000
summary:     change foo 1

changeset:   0:53245c60e682
user:        test
date:        Thu Jan 01 00:00:00 1970 +0000
summary:     add foo

1 files updated, 0 files merged, 0 files removed, 0 files unresolved
saving bundle to 
saving bundle to 
adding branch
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
changeset:   1:20cbbe65cff7
tag:         tip
user:        test
date:        Thu Jan 01 00:00:00 1970 +0000
summary:     change foo 2

changeset:   0:53245c60e682
user:        test
date:        Thu Jan 01 00:00:00 1970 +0000
summary:     add foo

% qclone
abort: versioned patch repository not found (see qinit -c)
adding .hg/patches/patch1
main repo:
    rev 1: change foo
    rev 0: add foo
patch repo:
    rev 0: checkpoint
updating to branch default
3 files updated, 0 files merged, 0 files removed, 0 files unresolved
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
main repo:
    rev 0: add foo
patch repo:
    rev 0: checkpoint
popping patch1
patch queue now empty
main repo:
    rev 0: add foo
patch repo:
    rev 0: checkpoint
updating to branch default
3 files updated, 0 files merged, 0 files removed, 0 files unresolved
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
main repo:
    rev 0: add foo
patch repo:
    rev 0: checkpoint
% test applying on an empty file (issue 1033)
adding a
popping changea
patch queue now empty
applying changea
now at: changea
% test qpush with --force, issue1087
adding bye.txt
adding hello.txt
popping empty
patch queue now empty
% qpush should fail, local changes
abort: local changes found, refresh first
% apply force, should not discard changes with empty patch
applying empty
patch empty is empty
now at: empty
diff -r bf5fc3f07a0a hello.txt
--- a/hello.txt
+++ b/hello.txt
@@ -1,1 +1,2 @@
 hello
+world
diff -r 9ecee4f634e3 hello.txt
--- a/hello.txt
+++ b/hello.txt
@@ -1,1 +1,2 @@
 hello
+world
changeset:   1:bf5fc3f07a0a
tag:         qtip
tag:         tip
tag:         empty
tag:         qbase
user:        test
date:        Thu Jan 01 00:00:00 1970 +0000
summary:     imported patch empty


popping empty
patch queue now empty
% qpush should fail, local changes
abort: local changes found, refresh first
% apply force, should discard changes in hello, but not bye
applying empty
now at: empty
M bye.txt
diff -r ba252371dbc1 bye.txt
--- a/bye.txt
+++ b/bye.txt
@@ -1,1 +1,2 @@
 bye
+universe
diff -r 9ecee4f634e3 bye.txt
--- a/bye.txt
+++ b/bye.txt
@@ -1,1 +1,2 @@
 bye
+universe
diff -r 9ecee4f634e3 hello.txt
--- a/hello.txt
+++ b/hello.txt
@@ -1,1 +1,3 @@
 hello
+world
+universe
% test popping revisions not in working dir ancestry
0 A empty
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
popping empty
patch queue now empty
% test popping must remove files added in subdirectories first
popping rename-dir
patch queue now empty