view tests/test-keyword.t @ 12329:7458de933f26

bundle: push chunkbuffer down into decompress

We replace the fixup iterator with a file-like object so that
uncompressed file streams can be passed end to end through the stack.

  $ 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
  [255]
  $ 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
  [255]
  $ 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
  [255]
  $ 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
  [1]
  $ 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.*