annotate tests/test-namespaces.t @ 6825:ba7ede61f6d4

topic: implement dirstate.topic() and dirstate.tns()

The implementations closely follow the implementation of dirstate.branch(),
including dirstate.setbranch(), from before a6e0b7d4ae9d. So far in this patch
we don't write topics or topic namespaces in a transaction. But we do have `tr`
argument in settopic() and settns() because it's easier to introduce it now
(even though it's simply ignored).

Also because of the branch implementation in core, topic and tns values on disk
now have a '\n' character at the end.

https://www.mercurial-scm.org/wiki/TopicPlan#sub_branches.2C_namespacing_and_representation

  $ . "$TESTDIR/testlib/topic_setup.sh"

  $ hg init repo
  $ cd repo

Setting a topic namespace alone doesn't affect wdir()

  $ hg debug-topic-namespace space-name
  marked working directory as topic namespace: space-name
  $ hg debug-topic-namespaces
  space-name
  $ cat .hg/topic-namespace
  space-name

  $ hg log -r 'wdir()' -T '{topic_namespace}\n'
  none

  $ hg log -r 'wdir()' -T '{fqbn}\n'
  default

But after setting a topic the already-set namespace is visible on wdir()

  $ hg topic feature
  marked working directory as topic: feature
  $ hg topics
   * feature (0 changesets)

  $ hg log -r 'wdir()' -T '{topic_namespace}\n'
  space-name

  $ hg log -r 'wdir()' -T '{fqbn}\n'
  default//space-name/feature

Non-ascii topic namespace name

  $ hg debug-topic-namespace --clear
  $ test -f .hg/topic-namespace
  [1]
  $ hg --encoding utf-8 debug-topic-namespace æ
  marked working directory as topic namespace: \xc3\xa6 (esc)
  $ hg --encoding utf-8 debug-topic-namespaces
  æ (esc)
  $ hg --encoding ascii debug-topic-namespaces
  ? (esc)
  $ hg --encoding latin1 debug-topic-namespaces
  \xe6 (esc)
  $ cat .hg/topic-namespace
  \xc3\xa6 (esc)

  $ hg --encoding utf-8 debug-topic-namespace ©
  abort: invalid topic namespace name: '\xc2\xa9' (esc)
  (topic namespace names can only consist of alphanumeric, '-', '_' and '.' characters)
  [10]

  $ hg --encoding latin1 debug-topic-namespace æ
  abort: invalid topic namespace name: '\xc3\xa6' (esc)
  (topic namespace names can only consist of alphanumeric, '-', '_' and '.' characters)
  [10]

  $ hg branches

  $ hg debug-topic-namespace --clear
  $ hg debug-topic-namespaces

  $ hg topic --clear
  clearing empty topic "feature"
  $ hg topics

  $ hg debugtopicnamespace --clear nonsense
  abort: cannot use --clear when setting a topic namespace
  [10]

  $ hg branch stable
  marked working directory as branch stable
  (branches are permanent and global, did you want a bookmark?)
  $ hg debug-topic-namespace alice
  marked working directory as topic namespace: alice
  $ hg topic feature
  marked working directory as topic: feature
  $ echo a > a
  $ hg ci -qAm a

  $ hg debug-topic-namespaces
  alice

  $ hg log -r . -T '{rev}: {branch} {topic_namespace} {topic}\n'
  0: stable alice feature

  $ hg log -r . -T '{rev}: {fqbn}\n'
  0: stable//alice/feature

  $ hg log -r . -T '{rev}: {join(extras, " ")}\n'
  0: branch=stable topic=feature topic-namespace=alice

  $ hg branches
  stable//alice/feature          0:69c7dbf6acd1

Removing topic namespace file if it contains the default value

The default value changed from b'default' to b'none' in 11.1.0, this is a
safeguard against accidentally putting the new default tns value into commit
extras with an old version of topic extension

  $ printf 'none' > .hg/topic-namespace
  $ test -f .hg/topic-namespace
  $ hg ci -m ''
  nothing changed
  [1]
  $ test -f .hg/topic-namespace
  [1]

Updating to a revision with a namespace should activate it

  $ hg up null
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ hg debug-topic-namespace
  none
  $ test -f .hg/topic-namespace
  [1]
  $ hg topics
     feature (1 changesets)
  $ test -f .hg/topic
  [1]
  $ hg up 0
  switching to topic-namespace alice
  switching to topic feature
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg debug-topic-namespace
  alice
  $ cat .hg/topic-namespace
  alice
  $ hg topics
   * feature (1 changesets)
  $ cat .hg/topic
  feature

Updating to a topic namespace is not supported

  $ hg up alice
  abort: unknown revision 'alice'
  [10]

Export/import of topic namespaces

  $ hg export
  # HG changeset patch
  # User test
  # Date 0 0
  #      Thu Jan 01 00:00:00 1970 +0000
  # Branch stable
  # Node ID 69c7dbf6acd180eeec055dd67933badd3601d45f
  # Parent  0000000000000000000000000000000000000000
  # EXP-Topic-Namespace alice
  # EXP-Topic feature
  a
  
  diff -r 000000000000 -r 69c7dbf6acd1 a
  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
  +++ b/a	Thu Jan 01 00:00:00 1970 +0000
  @@ -0,0 +1,1 @@
  +a

  $ hg import - << EOF
  > # HG changeset patch
  > # User test
  > # Date 0 0
  > #      Thu Jan 01 00:00:00 1970 +0000
  > # Branch another-branch
  > # Node ID 1111111111111111111111111111111111111111
  > # Parent  2222222222222222222222222222222222222222
  > # EXP-Topic-Namespace mynamespace
  > # EXP-Topic mytopic
  > added z
  > 
  > diff --git a/z b/z
  > new file mode 100644
  > --- /dev/null
  > +++ b/z
  > @@ -0,0 +1,1 @@
  > +z
  > EOF
  applying patch from stdin

  $ hg log -r tip -T '{rev}: {branch} {topic_namespace} {topic}\n'
  1: stable mynamespace mytopic

  $ hg log -r tip -T '{rev}: {fqbn}\n'
  1: stable//mynamespace/mytopic

  $ hg log -r tip -T '{rev}: {join(extras, " ")}\n'
  1: branch=stable topic=mytopic topic-namespace=mynamespace

Importing a patch with default namespace and topic values

  $ hg import - << EOF
  > # HG changeset patch
  > # User test
  > # Date 0 0
  > #      Thu Jan 01 00:00:00 1970 +0000
  > # Branch stable
  > # Node ID 1111111111111111111111111111111111111111
  > # Parent  2222222222222222222222222222222222222222
  > # EXP-Topic-Namespace none
  > # EXP-Topic 
  > more z
  > 
  > diff --git a/z b/z
  > --- a/z
  > +++ b/z
  > @@ -1,1 +1,1 @@
  > -z
  > +zebra
  > EOF
  applying patch from stdin

  $ hg log -r tip -T '{rev}: {branch} {topic_namespace} {topic}\n'
  2: stable none 

  $ hg log -r tip -T '{rev}: {fqbn}\n'
  2: stable

  $ hg log -r tip -T '{rev}: {join(extras, " ")}\n'
  2: branch=stable

Importing a patch with topic namespace set and topic unset

  $ hg import - << EOF
  > # HG changeset patch
  > # User test
  > # Date 0 0
  > #      Thu Jan 01 00:00:00 1970 +0000
  > # Branch stable
  > # Node ID 1111111111111111111111111111111111111111
  > # Parent  2222222222222222222222222222222222222222
  > # EXP-Topic-Namespace mynamespace
  > # EXP-Topic 
  > more z
  > 
  > diff --git a/z b/z
  > --- a/z
  > +++ b/z
  > @@ -1,1 +1,1 @@
  > -zebra
  > +z
  > EOF
  applying patch from stdin

  $ hg log -r tip -T '{rev}: {branch} {topic_namespace} {topic}\n'
  3: stable none 

  $ hg log -r tip -T '{rev}: {fqbn}\n'
  3: stable

  $ hg log -r tip -T '{rev}: {join(extras, " ")}\n'
  3: branch=stable

Revsets

  $ nslog() {
  >   hg log -T '{rev}: {topic_namespace}\n' -r "$1"
  > }

  $ nslog 'topicnamespace()'
  0: alice
  1: mynamespace
  $ nslog 'topicnamespace(:)'
  0: alice
  1: mynamespace
  $ nslog 'topicnamespace(all())'
  0: alice
  1: mynamespace
  $ nslog 'topicnamespace(topicnamespace("alice"))'
  0: alice
  $ nslog 'topicnamespace(wdir())'
  0: alice
  $ nslog 'topicnamespace("re:ice$")'
  0: alice
  $ nslog 'topicnamespace(nonsense)'
  abort: unknown revision 'nonsense'
  [10]

  $ nslog 'topicnamespace("re:nonsense")'
  $ nslog 'topicnamespace("literal:nonsense")'
  abort: topic namespace 'nonsense' does not exist
  [10]

Debug command related to the default/empty topic namespace

  $ hg debug-topic-namespace --clear

  $ echo none > none
  $ hg ci -qAm 'tns=none' \
  >    --config extensions.topic=! \
  >    --config extensions.commitextras= \
  >    --extra topic-namespace=none


  $ echo default > default
  $ hg ci -qAm 'tns=default' \
  >   --config extensions.topic=! \
  >   --config extensions.commitextras= \
  >   --extra topic-namespace=default

  $ hg debug-default-topic-namespace \
  >   --debug \
  >   | grep extra
  extra:       branch=stable
  extra:       topic-namespace=none

  $ hg debug-default-topic-namespace \
  >   --no-none \
  >   --default \
  >   --debug \
  >   | grep extra
  extra:       branch=stable
  extra:       topic-namespace=default

  $ hg debug-default-topic-namespace \
  >   --default \
  >   -T '{rev}:{node|short} {join(extras, " ")}\n'
  4:29a2d0acd473 branch=stable topic-namespace=none
  5:16d6061fce0c branch=stable topic-namespace=default

  $ hg debug-default-topic-namespace --none --default --clear

  $ hg debug-default-topic-namespace --none --default

  $ hg evolve --config extensions.evolve= --list

  $ hg evolve --config extensions.evolve= --any
  update:[7] tns=default
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  working directory is now at 38c9ea9d27a7

  $ hg debug-default-topic-namespace --none --default

  $ hg verify --quiet

Parsing

  $ hg debugparsefqbn foo/bar//user26/feature -T '[{branch}] <{topic_namespace}> ({topic})\n'
  [foo/bar] <user26> (feature)

no double slashes means it's a named branch
  $ hg debug-parse-fqbn foo/bar
  branch:    foo/bar
  namespace: none
  topic:     

Formatting

  $ hg debugformatfqbn -b branch -n namespace -t topic
  branch//namespace/topic

  $ hg debug-format-fqbn -n namespace
  //namespace/

  $ hg debug-format-fqbn -b foo/bar -n user26 -t feature
  foo/bar//user26/feature

default values

  $ hg debug-format-fqbn -b default -n none -t '' --no-short
  default//none/
  $ hg debug-format-fqbn -b default -n none -t '' --short
  default

  $ hg debug-format-fqbn -b default -n namespace -t '' --no-short
  default//namespace/
  $ hg debug-format-fqbn -b default -n namespace -t '' --short
  default//namespace/

  $ hg debug-format-fqbn -b default -n none -t topic --no-short
  default//none/topic
  $ hg debug-format-fqbn -b default -n none -t topic --short
  default//topic

  $ cd ..