Mercurial > hg
view tests/test-basic.t @ 47072:4c041c71ec01
revlog: introduce an explicit tracking of what the revlog is about
Since the dawn of time, people have been forced to rely to lossy introspection
of the index filename to determine what the purpose and role of the revlog they
encounter is. This is hacky, error prone, inflexible, abstraction-leaky,
<insert-your-own-complaints-here>.
In f63299ee7e4d Raphaël introduced a new attribute to track this information:
`revlog_kind`. However it is initialized in an odd place and various instances
end up not having it set. In addition is only tracking some of the information
we end up having to introspect in various pieces of code.
So we add a new attribute that holds more data and is more strictly enforced.
This work is done in collaboration with Raphaël.
The `revlog_kind` one will be removed/adapted in the next changeset. We expect
to be able to clean up various existing piece of code and to simplify coming
work around the newer revlog format.
Differential Revision: https://phab.mercurial-scm.org/D10352
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
---|---|
date | Tue, 06 Apr 2021 05:20:24 +0200 |
parents | 9c9e0b4b2ca7 |
children | 40b51c28b242 |
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Create a repository: #if no-extraextensions $ hg config devel.all-warnings=true devel.default-date=0 0 extensions.fsmonitor= (fsmonitor !) largefiles.usercache=$TESTTMP/.cache/largefiles lfs.usercache=$TESTTMP/.cache/lfs ui.slash=True ui.interactive=False ui.detailed-exit-code=True ui.merge=internal:merge ui.mergemarkers=detailed ui.promptecho=True ui.timeout.warn=15 web.address=localhost web\.ipv6=(?:True|False) (re) web.server-header=testing stub value #endif $ hg init t $ cd t Prepare a changeset: $ echo a > a $ hg add a $ hg status A a Writes to stdio succeed and fail appropriately #if devfull $ hg status 2>/dev/full A a $ hg status >/dev/full abort: No space left on device [255] #endif #if devfull $ hg status >/dev/full 2>&1 [255] $ hg status ENOENT 2>/dev/full [255] #endif On Python 3, stdio may be None: $ hg debuguiprompt --config ui.interactive=true 0<&- abort: Bad file descriptor [255] $ hg version -q 0<&- Mercurial Distributed SCM * (glob) #if py3 $ hg version -q 1>&- abort: Bad file descriptor [255] #else $ hg version -q 1>&- #endif $ hg unknown -q 1>&- hg: unknown command 'unknown' (did you mean debugknown?) [10] $ hg version -q 2>&- Mercurial Distributed SCM * (glob) $ hg unknown -q 2>&- [10] $ hg commit -m test This command is ancient: $ hg history changeset: 0:acb14030fe0a tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: test Verify that updating to revision 0 via commands.update() works properly $ cat <<EOF > update_to_rev0.py > from mercurial import commands, hg, ui as uimod > myui = uimod.ui.load() > repo = hg.repository(myui, path=b'.') > commands.update(myui, repo, rev=b"0") > EOF $ hg up null 0 files updated, 0 files merged, 1 files removed, 0 files unresolved $ "$PYTHON" ./update_to_rev0.py 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg identify -n 0 Poke around at hashes: $ hg manifest --debug b789fdd96dc2f3bd229c1dd8eedf0fc60e2b68e3 644 a $ hg cat a a Verify should succeed: $ hg verify checking changesets checking manifests crosschecking files in changesets and manifests checking files checked 1 changesets with 1 changes to 1 files Repository root: $ hg root $TESTTMP/t $ hg log -l1 -T '{reporoot}\n' $TESTTMP/t $ hg root -Tjson | sed 's|\\\\|\\|g' [ { "hgpath": "$TESTTMP/t/.hg", "reporoot": "$TESTTMP/t", "storepath": "$TESTTMP/t/.hg/store" } ] At the end... $ cd .. Status message redirection: $ hg init empty status messages are sent to stdout by default: $ hg outgoing -R t empty -Tjson 2>/dev/null comparing with empty searching for changes [ { "bookmarks": [], "branch": "default", "date": [0, 0], "desc": "test", "node": "acb14030fe0a21b60322c440ad2d20cf7685a376", "parents": ["0000000000000000000000000000000000000000"], "phase": "draft", "rev": 0, "tags": ["tip"], "user": "test" } ] which can be configured to send to stderr, so the output wouldn't be interleaved: $ cat <<'EOF' >> "$HGRCPATH" > [ui] > message-output = stderr > EOF $ hg outgoing -R t empty -Tjson 2>/dev/null [ { "bookmarks": [], "branch": "default", "date": [0, 0], "desc": "test", "node": "acb14030fe0a21b60322c440ad2d20cf7685a376", "parents": ["0000000000000000000000000000000000000000"], "phase": "draft", "rev": 0, "tags": ["tip"], "user": "test" } ] $ hg outgoing -R t empty -Tjson >/dev/null comparing with empty searching for changes this option should be turned off by HGPLAIN= since it may break scripting use: $ HGPLAIN= hg outgoing -R t empty -Tjson 2>/dev/null comparing with empty searching for changes [ { "bookmarks": [], "branch": "default", "date": [0, 0], "desc": "test", "node": "acb14030fe0a21b60322c440ad2d20cf7685a376", "parents": ["0000000000000000000000000000000000000000"], "phase": "draft", "rev": 0, "tags": ["tip"], "user": "test" } ] but still overridden by --config: $ HGPLAIN= hg outgoing -R t empty -Tjson --config ui.message-output=stderr \ > 2>/dev/null [ { "bookmarks": [], "branch": "default", "date": [0, 0], "desc": "test", "node": "acb14030fe0a21b60322c440ad2d20cf7685a376", "parents": ["0000000000000000000000000000000000000000"], "phase": "draft", "rev": 0, "tags": ["tip"], "user": "test" } ] Invalid ui.message-output option: $ hg log -R t --config ui.message-output=bad abort: invalid ui.message-output destination: bad [255] Underlying message streams should be updated when ui.fout/ferr are set: $ 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 > ui.fout = pycompat.bytesio() > ui.status(b'status\n') > ui.ferr = pycompat.bytesio() > ui.warn(b'warn\n') > out.write(b'stdout: %s' % ui.fout.getvalue()) > out.write(b'stderr: %s' % ui.ferr.getvalue()) > EOF $ hg --config extensions.capui=capui.py --config ui.message-output=stdio capui stdout: status stderr: warn