tests/test-keyword.t

merge: suggest 'hg up -C .' for discarding changes, not 'hg up -C'

Without specifying the parent revision of the working copy, users will
update to tip, which is most likely the other head they were trying to
merge, not the revision they were at before the merge.

  $ cat <<EOF >> $HGRCPATH
  > [extensions]
  > keyword =
  > mq =
  > notify =
  > record =
  > transplant =
  > [ui]
  > interactive = true
  > EOF

Run kwdemo before [keyword] files are set up
as it would succeed without uisetup otherwise

  $ hg --quiet kwdemo
  [extensions]
  keyword =
  [keyword]
  demo.txt = 
  [keywordmaps]
  Author = {author|user}
  Date = {date|utcdate}
  Header = {root}/{file},v {node|short} {date|utcdate} {author|user}
  Id = {file|basename},v {node|short} {date|utcdate} {author|user}
  RCSFile = {file|basename},v
  RCSfile = {file|basename},v
  Revision = {node|short}
  Source = {root}/{file},v
  \$Author: test \$
  \$Date: ..../../.. ..:..:.. \$
  \$Header: .*/demo.txt,v ............ ..../../.. ..:..:.. test \$
  \$Id: demo.txt,v ............ ..../../.. ..:..:.. test \$
  \$RCSFile: demo.txt,v \$
  \$RCSfile: demo.txt,v \$
  \$Revision: ............ \$
  \$Source: .*/demo.txt,v \$

  $ hg --quiet kwdemo "Branch = {branches}"
  [extensions]
  keyword =
  [keyword]
  demo.txt = 
  [keywordmaps]
  Branch = {branches}
  $Branch: demobranch $

  $ cat <<EOF >> $HGRCPATH
  > [keyword]
  > ** =
  > b = ignore
  > [hooks]
  > commit=
  > commit.test=cp a hooktest
  > EOF

  $ hg init Test-bndl
  $ cd Test-bndl

kwshrink should exit silently in empty/invalid repo

  $ hg kwshrink

Symlinks cannot be created on Windows.
A bundle to test this was made with:
 hg init t
 cd t
 echo a > a
 ln -s a sym
 hg add sym
 hg ci -m addsym -u mercurial
 hg bundle --base null ../test-keyword.hg

  $ hg pull -u "$TESTDIR"/test-keyword.hg
  pulling from .*test-keyword.hg
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ echo 'expand $Id$' > a
  $ echo 'do not process $Id:' >> a
  $ echo 'xxx $' >> a
  $ echo 'ignore $Id$' > b

Output files as they were created

  $ cat a b
  expand $Id$
  do not process $Id:
  xxx $
  ignore $Id$

no kwfiles

  $ hg kwfiles

untracked candidates

  $ hg -v kwfiles --unknown
  k a

Add files and check status

  $ hg addremove
  adding a
  adding b
  $ hg status
  A a
  A b


Default keyword expansion including commit hook
Interrupted commit should not change state or run commit hook

  $ hg --debug commit
  abort: empty commit message
  $ hg status
  A a
  A b

Commit with several checks

  $ hg --debug commit -mabsym -u 'User Name <[e-mail]>'
  a
  b
  overwriting a expanding keywords
  running hook commit.test: cp a hooktest
  committed changeset 1:ef63ca68695bc9495032c6fda1350c71e6d256e9
  $ hg status
  ? hooktest
  $ hg debugrebuildstate
  $ hg --quiet identify
  ef63ca68695b

cat files in working directory with keywords expanded

  $ cat a b
  expand $Id: a,v ef63ca68695b 1970/01/01 00:00:00 user $
  do not process $Id:
  xxx $
  ignore $Id$

hg cat files and symlink, no expansion

  $ hg cat sym a b && echo
  expand $Id: a,v ef63ca68695b 1970/01/01 00:00:00 user $
  do not process $Id:
  xxx $
  ignore $Id$
  a.*

Test hook execution

  $ diff a hooktest

Removing commit hook from config

  $ sed -e '/\[hooks\]/,$ d' "$HGRCPATH" > $HGRCPATH.nohook
  $ mv "$HGRCPATH".nohook "$HGRCPATH"
  $ rm hooktest

bundle

  $ hg bundle --base null ../kw.hg
  2 changesets found
  $ cd ..
  $ hg init Test
  $ cd Test

Notify on pull to check whether keywords stay as is in email
ie. if patch.diff wrapper acts as it should

  $ cat <<EOF >> $HGRCPATH
  > [hooks]
  > incoming.notify = python:hgext.notify.hook
  > [notify]
  > sources = pull
  > diffstat = False
  > [reposubs]
  > * = Test
  > EOF

Pull from bundle and trigger notify

  $ hg pull -u ../kw.hg
  pulling from ../kw.hg
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  added 2 changesets with 3 changes to 3 files
  Content-Type: text/plain; charset="us-ascii"
  MIME-Version: 1.0
  Content-Transfer-Encoding: 7bit
  Date: .*
  Subject: changeset in .*
  From: mercurial
  X-Hg-Notification: changeset a2392c293916
  Message-Id: <hg.a2392c293916.*>
  To: Test
  
  changeset a2392c293916 in .*
  details: .*?cmd=changeset;node=a2392c293916
  description:
  	addsym
  
  diffs (6 lines):
  
  diff -r 000000000000 -r a2392c293916 sym
  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
  +++ b/sym	Sat Feb 09 20:25:47 2008 +0100
  @@ -0,0 +1,1 @@
  +a
  \ No newline at end of file
  Content-Type: text/plain; charset="us-ascii"
  MIME-Version: 1.0
  Content-Transfer-Encoding: 7bit
  Date:.*
  Subject: changeset in.*
  From: User Name <[e-mail]>
  X-Hg-Notification: changeset ef63ca68695b
  Message-Id: <hg.ef63ca68695b.*>
  To: Test
  
  changeset ef63ca68695b in .*
  details: .*?cmd=changeset;node=ef63ca68695b
  description:
  	absym
  
  diffs (12 lines):
  
  diff -r a2392c293916 -r ef63ca68695b a
  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
  +++ b/a	Thu Jan 01 00:00:00 1970 +0000
  @@ -0,0 +1,3 @@
  +expand $Id$
  +do not process $Id:
  +xxx $
  diff -r a2392c293916 -r ef63ca68695b b
  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
  +++ b/b	Thu Jan 01 00:00:00 1970 +0000
  @@ -0,0 +1,1 @@
  +ignore $Id$
  3 files updated, 0 files merged, 0 files removed, 0 files unresolved

Remove notify config

  $ sed -e '/\[hooks\]/,$ d' "$HGRCPATH" > $HGRCPATH.nonotify
  $ mv "$HGRCPATH".nonotify "$HGRCPATH"

Touch files and check with status

  $ touch a b
  $ hg status

Update and expand

  $ rm sym a b
  $ hg update -C
  3 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ cat a b
  expand $Id: a,v ef63ca68695b 1970/01/01 00:00:00 user $
  do not process $Id:
  xxx $
  ignore $Id$

Check whether expansion is filewise

  $ echo '$Id$' > c
  $ echo 'tests for different changenodes' >> c

commit file c

  $ hg commit -A -mcndiff -d '1 0' -u 'User Name <[e-mail]>'
  adding c

force expansion

  $ hg -v kwexpand
  overwriting a expanding keywords
  overwriting c expanding keywords

compare changenodes in a and c

  $ cat a c
  expand $Id: a,v ef63ca68695b 1970/01/01 00:00:00 user $
  do not process $Id:
  xxx $
  $Id: c,v 40a904bbbe4c 1970/01/01 00:00:01 user $
  tests for different changenodes

record chunk

  $ python -c \
  > 'l=open("a").readlines();l.insert(1,"foo\n");l.append("bar\n");open("a","w").writelines(l);'
  $ hg record -d '1 10' -m rectest<<EOF
  > y
  > y
  > n
  > EOF
  diff --git a/a b/a
  2 hunks, 2 lines changed
  examine changes to 'a'? [Ynsfdaq?] 
  @@ -1,3 +1,4 @@
   expand $Id$
  +foo
   do not process $Id:
   xxx $
  record change 1/2 to 'a'? [Ynsfdaq?] 
  @@ -2,2 +3,3 @@
   do not process $Id:
   xxx $
  +bar
  record change 2/2 to 'a'? [Ynsfdaq?] 

  $ hg identify
  d17e03c92c97+ tip
  $ hg status
  M a

Cat modified file a

  $ cat a
  expand $Id: a,v d17e03c92c97 1970/01/01 00:00:01 test $
  foo
  do not process $Id:
  xxx $
  bar

Diff remaining chunk

  $ hg diff
  diff -r d17e03c92c97 a
  --- a/a	Wed Dec 31 23:59:51 1969 -0000
  \+\+\+ b/a	.*
  @@ -2,3 +2,4 @@
   foo
   do not process $Id:
   xxx $
  +bar

  $ hg rollback
  rolling back to revision 2 (undo commit)

Record all chunks in file a

  $ echo foo > msg

 - do not use "hg record -m" here!

  $ hg record -l msg -d '1 11'<<EOF
  > y
  > y
  > y
  > EOF
  diff --git a/a b/a
  2 hunks, 2 lines changed
  examine changes to 'a'? [Ynsfdaq?] 
  @@ -1,3 +1,4 @@
   expand $Id$
  +foo
   do not process $Id:
   xxx $
  record change 1/2 to 'a'? [Ynsfdaq?] 
  @@ -2,2 +3,3 @@
   do not process $Id:
   xxx $
  +bar
  record change 2/2 to 'a'? [Ynsfdaq?] 

File a should be clean

  $ hg status -A a
  C a

  $ rm msg
  $ hg rollback
  rolling back to revision 2 (undo commit)
  $ hg update -C
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

Test patch queue repo

  $ hg init --mq
  $ hg qimport -r tip -n mqtest.diff
  $ hg commit --mq -m mqtest

Keywords should not be expanded in patch

  $ cat .hg/patches/mqtest.diff
  # HG changeset patch
  # User User Name <[e-mail]>
  # Date 1 0
  # Node ID 40a904bbbe4cd4ab0a1f28411e35db26341a40ad
  # Parent  ef63ca68695bc9495032c6fda1350c71e6d256e9
  cndiff
  
  diff -r ef63ca68695b -r 40a904bbbe4c c
  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
  +++ b/c	Thu Jan 01 00:00:01 1970 +0000
  @@ -0,0 +1,2 @@
  +$Id$
  +tests for different changenodes

  $ hg qpop
  popping mqtest.diff
  patch queue now empty

qgoto, implying qpush, should expand

  $ hg qgoto mqtest.diff
  applying mqtest.diff
  now at: mqtest.diff
  $ cat c
  $Id: c,v 40a904bbbe4c 1970/01/01 00:00:01 user $
  tests for different changenodes
  $ hg cat c
  $Id: c,v 40a904bbbe4c 1970/01/01 00:00:01 user $
  tests for different changenodes

Keywords should not be expanded in filelog

  $ hg --config 'extensions.keyword=!' cat c
  $Id$
  tests for different changenodes

qpop and move on

  $ hg qpop
  popping mqtest.diff
  patch queue now empty

Copy and show added kwfiles

  $ hg cp a c
  $ hg kwfiles
  a
  c

Commit and show expansion in original and copy

  $ hg --debug commit -ma2c -d '1 0' -u 'User Name <[e-mail]>'
  c
   c: copy a:0045e12f6c5791aac80ca6cbfd97709a88307292
  overwriting c expanding keywords
  committed changeset 2:25736cf2f5cbe41f6be4e6784ef6ecf9f3bbcc7d
  $ cat a c
  expand $Id: a,v ef63ca68695b 1970/01/01 00:00:00 user $
  do not process $Id:
  xxx $
  expand $Id: c,v 25736cf2f5cb 1970/01/01 00:00:01 user $
  do not process $Id:
  xxx $

Touch copied c and check its status

  $ touch c
  $ hg status

Test different options of hg kwfiles

  $ hg kwfiles
  a
  c
  $ hg -v kwfiles --ignore
  I b
  I sym
  $ hg kwfiles --all
  K a
  K c
  I b
  I sym

Diff specific revision

  $ hg diff --rev 1
  diff -r ef63ca68695b c
  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
  \+\+\+ b/c	.*
  @@ -0,0 +1,3 @@
  +expand $Id$
  +do not process $Id:
  +xxx $

Status after rollback:

  $ hg rollback
  rolling back to revision 1 (undo commit)
  $ hg status
  A c
  $ hg update --clean
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved

Custom keywordmaps as argument to kwdemo

  $ hg --quiet kwdemo "Xinfo = {author}: {desc}"
  [extensions]
  keyword =
  [keyword]
  ** = 
  b = ignore
  demo.txt = 
  [keywordmaps]
  Xinfo = {author}: {desc}
  $Xinfo: test: hg keyword configuration and expansion example $

Configure custom keywordmaps

  $ cat <<EOF >>$HGRCPATH
  > [keywordmaps]
  > Id = {file} {node|short} {date|rfc822date} {author|user}
  > Xinfo = {author}: {desc}
  > EOF

Cat and hg cat files before custom expansion

  $ cat a b
  expand $Id: a,v ef63ca68695b 1970/01/01 00:00:00 user $
  do not process $Id:
  xxx $
  ignore $Id$
  $ hg cat sym a b && echo
  expand $Id: a ef63ca68695b Thu, 01 Jan 1970 00:00:00 +0000 user $
  do not process $Id:
  xxx $
  ignore $Id$
  a.*

Write custom keyword and prepare multiline commit message

  $ echo '$Xinfo$' >> a
  $ cat <<EOF >> log
  > firstline
  > secondline
  > EOF

Interrupted commit should not change state

  $ hg commit
  abort: empty commit message
  $ hg status
  M a
  ? c
  ? log

Commit with multiline message and custom expansion

  $ hg --debug commit -l log -d '2 0' -u 'User Name <[e-mail]>'
  a
  overwriting a expanding keywords
  committed changeset 2:bb948857c743469b22bbf51f7ec8112279ca5d83
  $ rm log

Stat, verify and show custom expansion (firstline)

  $ hg status
  ? c
  $ hg verify
  checking changesets
  checking manifests
  crosschecking files in changesets and manifests
  checking files
  3 files, 3 changesets, 4 total revisions
  $ cat a b
  expand $Id: a bb948857c743 Thu, 01 Jan 1970 00:00:02 +0000 user $
  do not process $Id:
  xxx $
  $Xinfo: User Name <[e-mail]>: firstline $
  ignore $Id$
  $ hg cat sym a b && echo
  expand $Id: a bb948857c743 Thu, 01 Jan 1970 00:00:02 +0000 user $
  do not process $Id:
  xxx $
  $Xinfo: User Name <[e-mail]>: firstline $
  ignore $Id$
  a.*

annotate

  $ hg annotate a
  1: expand $Id$
  1: do not process $Id:
  1: xxx $
  2: $Xinfo$

remove with status checks

  $ hg debugrebuildstate
  $ hg remove a
  $ hg --debug commit -m rma
  committed changeset 3:d14c712653769de926994cf7fbb06c8fbd68f012
  $ hg status
  ? c

Rollback, revert, and check expansion

  $ hg rollback
  rolling back to revision 2 (undo commit)
  $ hg status
  R a
  ? c
  $ hg revert --no-backup --rev tip a
  $ cat a
  expand $Id: a bb948857c743 Thu, 01 Jan 1970 00:00:02 +0000 user $
  do not process $Id:
  xxx $
  $Xinfo: User Name <[e-mail]>: firstline $

Clone to test global and local configurations

  $ cd ..

Expansion in destinaton with global configuration

  $ hg --quiet clone Test globalconf
  $ cat globalconf/a
  expand $Id: a bb948857c743 Thu, 01 Jan 1970 00:00:02 +0000 user $
  do not process $Id:
  xxx $
  $Xinfo: User Name <[e-mail]>: firstline $

No expansion in destination with local configuration in origin only

  $ hg --quiet --config 'keyword.**=ignore' clone Test localconf
  $ cat localconf/a
  expand $Id$
  do not process $Id:
  xxx $
  $Xinfo$

Clone to test incoming

  $ hg clone -r1 Test Test-a
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  added 2 changesets with 3 changes to 3 files
  updating to branch default
  3 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ cd Test-a
  $ cat <<EOF >> .hg/hgrc
  > [paths]
  > default = ../Test
  > EOF
  $ hg incoming
  comparing with .*test-keyword.t/Test
  searching for changes
  changeset:   2:bb948857c743
  tag:         tip
  user:        User Name <[e-mail]>
  date:        Thu Jan 01 00:00:02 1970 +0000
  summary:     firstline
  
Imported patch should not be rejected

  $ sed -e 's/Id.*/& rejecttest/' a > a.new
  $ mv a.new a
  $ hg --debug commit -m'rejects?' -d '3 0' -u 'User Name <[e-mail]>'
  a
  overwriting a expanding keywords
  committed changeset 2:85e279d709ffc28c9fdd1b868570985fc3d87082
  $ hg export -o ../rejecttest.diff tip
  $ cd ../Test
  $ hg import ../rejecttest.diff
  applying ../rejecttest.diff
  $ cat a b
  expand $Id: a 4e0994474d25 Thu, 01 Jan 1970 00:00:03 +0000 user $ rejecttest
  do not process $Id: rejecttest
  xxx $
  $Xinfo: User Name <[e-mail]>: rejects? $
  ignore $Id$

  $ hg rollback
  rolling back to revision 2 (undo commit)
  $ hg update --clean
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

kwexpand/kwshrink on selected files

  $ mkdir x
  $ hg copy a x/a
  $ hg --verbose kwexpand a
  overwriting a expanding keywords

kwexpand x/a should abort

  $ hg --verbose kwexpand x/a
  abort: outstanding uncommitted changes
  $ cd x
  $ hg --debug commit -m xa -d '3 0' -u 'User Name <[e-mail]>'
  x/a
   x/a: copy a:779c764182ce5d43e2b1eb66ce06d7b47bfe342e
  overwriting x/a expanding keywords
  committed changeset 3:b4560182a3f9a358179fd2d835c15e9da379c1e4
  $ cat a
  expand $Id: x/a b4560182a3f9 Thu, 01 Jan 1970 00:00:03 +0000 user $
  do not process $Id:
  xxx $
  $Xinfo: User Name <[e-mail]>: xa $

kwshrink a inside directory x

  $ hg --verbose kwshrink a
  overwriting x/a shrinking keywords
  $ cat a
  expand $Id$
  do not process $Id:
  xxx $
  $Xinfo$
  $ cd ..

kwexpand nonexistent

  $ hg kwexpand nonexistent
  nonexistent:.*


hg serve
 - expand with hgweb file
 - no expansion with hgweb annotate/changeset/filediff
 - check errors

  $ hg serve -p $HGPORT -d --pid-file=hg.pid -A access.log -E errors.log
  $ cat hg.pid >> $DAEMON_PIDS
  $ $TESTDIR/get-with-headers.py localhost:$HGPORT '/file/tip/a/?style=raw'
  200 Script output follows
  
  expand $Id: a bb948857c743 Thu, 01 Jan 1970 00:00:02 +0000 user $
  do not process $Id:
  xxx $
  $Xinfo: User Name <[e-mail]>: firstline $
  $ $TESTDIR/get-with-headers.py localhost:$HGPORT '/annotate/tip/a/?style=raw'
  200 Script output follows
  
  
  user@1: expand $Id$
  user@1: do not process $Id:
  user@1: xxx $
  user@2: $Xinfo$
  
  
  
  
  $ $TESTDIR/get-with-headers.py localhost:$HGPORT '/rev/tip/?style=raw'
  200 Script output follows
  
  
  # HG changeset patch
  # User User Name <[e-mail]>
  # Date 3 0
  # Node ID b4560182a3f9a358179fd2d835c15e9da379c1e4
  # Parent  bb948857c743469b22bbf51f7ec8112279ca5d83
  xa
  
  diff -r bb948857c743 -r b4560182a3f9 x/a
  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
  +++ b/x/a	Thu Jan 01 00:00:03 1970 +0000
  @@ -0,0 +1,4 @@
  +expand $Id$
  +do not process $Id:
  +xxx $
  +$Xinfo$
  
  $ $TESTDIR/get-with-headers.py localhost:$HGPORT '/diff/bb948857c743/a?style=raw'
  200 Script output follows
  
  
  diff -r ef63ca68695b -r bb948857c743 a
  --- a/a	Thu Jan 01 00:00:00 1970 +0000
  +++ b/a	Thu Jan 01 00:00:02 1970 +0000
  @@ -1,3 +1,4 @@
   expand $Id$
   do not process $Id:
   xxx $
  +$Xinfo$
  
  
  
  
  $ cat errors.log

Prepare merge and resolve tests

  $ echo '$Id$' > m
  $ hg add m
  $ hg commit -m 4kw 
  $ echo foo >> m
  $ hg commit -m 5foo

simplemerge

  $ hg update 4
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ echo foo >> m
  $ hg commit -m 6foo
  created new head
  $ hg merge
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)
  $ hg commit -m simplemerge
  $ cat m
  $Id: m 27d48ee14f67 Thu, 01 Jan 1970 00:00:00 +0000 test $
  foo

conflict: keyword should stay outside conflict zone

  $ hg update 4
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ echo bar >> m
  $ hg commit -m 8bar
  created new head
  $ hg merge
  merging m
  warning: conflicts during merge.
  merging m failed!
  0 files updated, 0 files merged, 0 files removed, 1 files unresolved
  use 'hg resolve' to retry unresolved file merges or 'hg update -C .' to abandon
  $ cat m
  $Id$
  <<<<<<< local
  bar
  =======
  foo
  >>>>>>> other

resolve to local

  $ HGMERGE=internal:local hg resolve -a
  $ hg commit -m localresolve
  $ cat m
  $Id: m 41efa6d38e9b Thu, 01 Jan 1970 00:00:00 +0000 test $
  bar

Test restricted mode with transplant -b

  $ hg update 6
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg branch foo
  marked working directory as branch foo
  $ mv a a.bak
  $ echo foobranch > a
  $ cat a.bak >> a
  $ rm a.bak
  $ hg commit -m 9foobranch
  $ hg update default
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg -y transplant -b foo tip
  applying 4aa30d025d50
  4aa30d025d50 transplanted to 5a4da427c162

Expansion in changeset but not in file

  $ hg tip -p
  changeset:   11:5a4da427c162
  tag:         tip
  parent:      9:41efa6d38e9b
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     9foobranch
  
  diff -r 41efa6d38e9b -r 5a4da427c162 a
  --- a/a	Thu Jan 01 00:00:00 1970 +0000
  +++ b/a	Thu Jan 01 00:00:00 1970 +0000
  @@ -1,3 +1,4 @@
  +foobranch
   expand $Id$
   do not process $Id:
   xxx $
  
  $ head -n 2 a
  foobranch
  expand $Id: a 5a4da427c162 Thu, 01 Jan 1970 00:00:00 +0000 test $

Switch of expansion

  $ hg -q rollback
  $ hg -q update -C

kwshrink with unknown file u

  $ cp a u
  $ hg --verbose kwshrink
  overwriting a shrinking keywords
  overwriting m shrinking keywords
  overwriting x/a shrinking keywords

Keywords shrunk in working directory, but not yet disabled
 - cat shows unexpanded keywords
 - hg cat shows expanded keywords

  $ cat a b
  expand $Id$
  do not process $Id:
  xxx $
  $Xinfo$
  ignore $Id$
  $ hg cat sym a b && echo
  expand $Id: a bb948857c743 Thu, 01 Jan 1970 00:00:02 +0000 user $
  do not process $Id:
  xxx $
  $Xinfo: User Name <[e-mail]>: firstline $
  ignore $Id$
  a.*

Now disable keyword expansion

  $ rm "$HGRCPATH"
  $ cat a b
  expand $Id$
  do not process $Id:
  xxx $
  $Xinfo$
  ignore $Id$
  $ hg cat sym a b && echo
  expand $Id$
  do not process $Id:
  xxx $
  $Xinfo$
  ignore $Id$
  a.*