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Create a repository:
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#if no-extraextensions
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$ hg config
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chgserver.idletimeout=60
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devel.all-warnings=true
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devel.default-date=0 0
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extensions.fsmonitor= (fsmonitor !)
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format.exp-rc-dirstate-v2=1 (dirstate-v2 !)
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largefiles.usercache=$TESTTMP/.cache/largefiles
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lfs.usercache=$TESTTMP/.cache/lfs
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ui.slash=True
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ui.interactive=False
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ui.detailed-exit-code=True
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ui.merge=internal:merge
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ui.mergemarkers=detailed
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ui.promptecho=True
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ui.ssh=* (glob)
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ui.timeout.warn=15
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web.address=localhost
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web\.ipv6=(?:True|False) (re)
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web.server-header=testing stub value
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#endif
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$ hg init t
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$ cd t
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Prepare a changeset:
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$ echo a > a
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$ hg add a
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$ hg status
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A a
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Writes to stdio succeed and fail appropriately
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#if devfull
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$ hg status 2>/dev/full
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A a
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$ hg status >/dev/full
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abort: No space left on device
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[255]
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#endif
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#if devfull
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$ hg status >/dev/full 2>&1
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[255]
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$ hg status ENOENT 2>/dev/full
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[255]
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#endif
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On Python 3, stdio may be None:
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$ hg debuguiprompt --config ui.interactive=true 0<&-
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abort: Bad file descriptor
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[255]
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$ hg version -q 0<&-
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Mercurial Distributed SCM * (glob)
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#if py3
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$ hg version -q 1>&-
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abort: Bad file descriptor
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[255]
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#else
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$ hg version -q 1>&-
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#endif
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$ hg unknown -q 1>&-
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hg: unknown command 'unknown'
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(did you mean debugknown?)
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[10]
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$ hg version -q 2>&-
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Mercurial Distributed SCM * (glob)
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$ hg unknown -q 2>&-
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[10]
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$ hg commit -m test
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This command is ancient:
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$ hg history
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changeset: 0:acb14030fe0a
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tag: tip
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user: test
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date: Thu Jan 01 00:00:00 1970 +0000
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summary: test
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Verify that updating to revision 0 via commands.update() works properly
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$ cat <<EOF > update_to_rev0.py
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> from mercurial import commands, hg, ui as uimod
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> myui = uimod.ui.load()
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> repo = hg.repository(myui, path=b'.')
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> commands.update(myui, repo, rev=b"0")
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> EOF
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$ hg up null
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0 files updated, 0 files merged, 1 files removed, 0 files unresolved
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$ "$PYTHON" ./update_to_rev0.py
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1 files updated, 0 files merged, 0 files removed, 0 files unresolved
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$ hg identify -n
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0
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Poke around at hashes:
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$ hg manifest --debug
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b789fdd96dc2f3bd229c1dd8eedf0fc60e2b68e3 644 a
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$ hg cat a
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a
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Verify should succeed:
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$ hg verify
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checking changesets
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checking manifests
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crosschecking files in changesets and manifests
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checking files
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checked 1 changesets with 1 changes to 1 files
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Repository root:
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$ hg root
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$TESTTMP/t
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$ hg log -l1 -T '{reporoot}\n'
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$TESTTMP/t
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$ hg root -Tjson | sed 's|\\\\|\\|g'
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[
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{
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"hgpath": "$TESTTMP/t/.hg",
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"reporoot": "$TESTTMP/t",
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"storepath": "$TESTTMP/t/.hg/store"
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}
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]
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At the end...
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$ cd ..
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Status message redirection:
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$ hg init empty
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status messages are sent to stdout by default:
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$ hg outgoing -R t empty -Tjson 2>/dev/null
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comparing with empty
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searching for changes
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[
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{
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"bookmarks": [],
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"branch": "default",
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"date": [0, 0],
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"desc": "test",
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"node": "acb14030fe0a21b60322c440ad2d20cf7685a376",
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"parents": ["0000000000000000000000000000000000000000"],
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"phase": "draft",
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"rev": 0,
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"tags": ["tip"],
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"user": "test"
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}
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]
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which can be configured to send to stderr, so the output wouldn't be
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interleaved:
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$ cat <<'EOF' >> "$HGRCPATH"
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> [ui]
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> message-output = stderr
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> EOF
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$ hg outgoing -R t empty -Tjson 2>/dev/null
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[
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{
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"bookmarks": [],
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"branch": "default",
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"date": [0, 0],
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"desc": "test",
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"node": "acb14030fe0a21b60322c440ad2d20cf7685a376",
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"parents": ["0000000000000000000000000000000000000000"],
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"phase": "draft",
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"rev": 0,
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"tags": ["tip"],
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"user": "test"
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}
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]
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$ hg outgoing -R t empty -Tjson >/dev/null
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comparing with empty
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searching for changes
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this option should be turned off by HGPLAIN= since it may break scripting use:
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$ HGPLAIN= hg outgoing -R t empty -Tjson 2>/dev/null
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|
comparing with empty
|
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|
searching for changes
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|
[
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|
{
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|
|
"bookmarks": [],
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|
"branch": "default",
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|
|
"date": [0, 0],
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|
"desc": "test",
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"node": "acb14030fe0a21b60322c440ad2d20cf7685a376",
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|
"parents": ["0000000000000000000000000000000000000000"],
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"phase": "draft",
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"rev": 0,
|
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"tags": ["tip"],
|
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|
"user": "test"
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|
|
}
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]
|
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|
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|
but still overridden by --config:
|
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|
|
$ HGPLAIN= hg outgoing -R t empty -Tjson --config ui.message-output=stderr \
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> 2>/dev/null
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[
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{
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"bookmarks": [],
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|
"branch": "default",
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|
|
"date": [0, 0],
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|
"desc": "test",
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|
"node": "acb14030fe0a21b60322c440ad2d20cf7685a376",
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|
"parents": ["0000000000000000000000000000000000000000"],
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|
"phase": "draft",
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|
"rev": 0,
|
|
|
"tags": ["tip"],
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"user": "test"
|
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}
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]
|
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|
|
Invalid ui.message-output option:
|
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|
|
|
$ hg log -R t --config ui.message-output=bad
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|
abort: invalid ui.message-output destination: bad
|
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|
[255]
|
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|
|
|
Underlying message streams should be updated when ui.fout/ferr are set:
|
|
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|
|
|
$ cat <<'EOF' > capui.py
|
|
|
> from mercurial import pycompat, registrar
|
|
|
> cmdtable = {}
|
|
|
> command = registrar.command(cmdtable)
|
|
|
> @command(b'capui', norepo=True)
|
|
|
> def capui(ui):
|
|
|
> out = ui.fout
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|
> ui.fout = pycompat.bytesio()
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> ui.status(b'status\n')
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> ui.ferr = pycompat.bytesio()
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> ui.warn(b'warn\n')
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> out.write(b'stdout: %s' % ui.fout.getvalue())
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|
> out.write(b'stderr: %s' % ui.ferr.getvalue())
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|
|
> EOF
|
|
|
$ hg --config extensions.capui=capui.py --config ui.message-output=stdio capui
|
|
|
stdout: status
|
|
|
stderr: warn
|
|
|
|