treemanifest: stop storing full path for each item in manifest._lazydirs
This information is obtainable, if needed, based on the lazydirs key (which is
the entry name) and the manifest's `dir()` method.
### Performance
This is actually both a memory and a performance improvement, but it's likely to
be a very small one in most situations. In the pathological repo I've been using
for testing other performance work I've done recently, this reduced the time for
a rebase operation (rebasing two commits across a public-phase change that
touches a sibling of one of my tracked directories where the common parent is
massive (>>10k entries)):
#### Before
```
Time (mean ± σ): 4.059 s ± 0.121 s [User: 0.9 ms, System: 0.6 ms]
Range (min … max): 3.941 s … 4.352 s 10 runs
```
#### After
```
Time (mean ± σ): 3.707 s ± 0.060 s [User: 0.8 ms, System: 0.8 ms]
Range (min … max): 3.648 s … 3.818 s 10 runs
```
Differential Revision: https://phab.mercurial-scm.org/D9553
#require chg
$ mkdir log
$ cp $HGRCPATH $HGRCPATH.unconfigured
$ cat <<'EOF' >> $HGRCPATH
> [cmdserver]
> log = $TESTTMP/log/server.log
> max-log-files = 1
> max-log-size = 10 kB
> EOF
$ cp $HGRCPATH $HGRCPATH.orig
$ filterlog () {
> sed -e 's!^[0-9/]* [0-9:]* ([0-9]*)>!YYYY/MM/DD HH:MM:SS (PID)>!' \
> -e 's!\(setprocname\|received fds\|setenv\): .*!\1: ...!' \
> -e 's!\(confighash\|mtimehash\) = [0-9a-f]*!\1 = ...!g' \
> -e 's!\(in \)[0-9.]*s\b!\1 ...s!g' \
> -e 's!\(pid\)=[0-9]*!\1=...!g' \
> -e 's!\(/server-\)[0-9a-f]*!\1...!g'
> }
init repo
$ chg init foo
$ cd foo
ill-formed config
$ chg status
$ echo '=brokenconfig' >> $HGRCPATH
$ chg status
config error at * =brokenconfig (glob)
[255]
$ cp $HGRCPATH.orig $HGRCPATH
long socket path
$ sockpath=$TESTTMP/this/path/should/be/longer/than/one-hundred-and-seven/characters/where/107/is/the/typical/size/limit/of/unix-domain-socket
$ mkdir -p $sockpath
$ bakchgsockname=$CHGSOCKNAME
$ CHGSOCKNAME=$sockpath/server
$ export CHGSOCKNAME
$ chg root
$TESTTMP/foo
$ rm -rf $sockpath
$ CHGSOCKNAME=$bakchgsockname
$ export CHGSOCKNAME
$ cd ..
editor
------
$ cat >> pushbuffer.py <<EOF
> def reposetup(ui, repo):
> repo.ui.pushbuffer(subproc=True)
> EOF
$ chg init editor
$ cd editor
by default, system() should be redirected to the client:
$ touch foo
$ CHGDEBUG= HGEDITOR=cat chg ci -Am channeled --edit 2>&1 \
> | egrep "HG:|run 'cat"
chg: debug: * run 'cat "*"' at '$TESTTMP/editor' (glob)
HG: Enter commit message. Lines beginning with 'HG:' are removed.
HG: Leave message empty to abort commit.
HG: --
HG: user: test
HG: branch 'default'
HG: added foo
but no redirection should be made if output is captured:
$ touch bar
$ CHGDEBUG= HGEDITOR=cat chg ci -Am bufferred --edit \
> --config extensions.pushbuffer="$TESTTMP/pushbuffer.py" 2>&1 \
> | egrep "HG:|run 'cat"
[1]
check that commit commands succeeded:
$ hg log -T '{rev}:{desc}\n'
1:bufferred
0:channeled
$ cd ..
pager
-----
$ cat >> fakepager.py <<EOF
> import sys
> for line in sys.stdin:
> sys.stdout.write('paged! %r\n' % line)
> EOF
enable pager extension globally, but spawns the master server with no tty:
$ chg init pager
$ cd pager
$ cat >> $HGRCPATH <<EOF
> [extensions]
> pager =
> [pager]
> pager = "$PYTHON" $TESTTMP/fakepager.py
> EOF
$ chg version > /dev/null
$ touch foo
$ chg ci -qAm foo
pager should be enabled if the attached client has a tty:
$ chg log -l1 -q --config ui.formatted=True
paged! '0:1f7b0de80e11\n'
$ chg log -l1 -q --config ui.formatted=False
0:1f7b0de80e11
chg waits for pager if runcommand raises
$ cat > $TESTTMP/crash.py <<EOF
> from mercurial import registrar
> cmdtable = {}
> command = registrar.command(cmdtable)
> @command(b'crash')
> def pagercrash(ui, repo, *pats, **opts):
> ui.write(b'going to crash\n')
> raise Exception('.')
> EOF
$ cat > $TESTTMP/fakepager.py <<EOF
> from __future__ import absolute_import
> import sys
> import time
> for line in iter(sys.stdin.readline, ''):
> if 'crash' in line: # only interested in lines containing 'crash'
> # if chg exits when pager is sleeping (incorrectly), the output
> # will be captured by the next test case
> time.sleep(1)
> sys.stdout.write('crash-pager: %s' % line)
> EOF
$ cat >> .hg/hgrc <<EOF
> [extensions]
> crash = $TESTTMP/crash.py
> EOF
$ chg crash --pager=on --config ui.formatted=True 2>/dev/null
crash-pager: going to crash
[255]
no stdout data should be printed after pager quits, and the buffered data
should never persist (issue6207)
"killed!" may be printed if terminated by SIGPIPE, which isn't important
in this test.
$ cat > $TESTTMP/bulkwrite.py <<'EOF'
> import time
> from mercurial import error, registrar
> cmdtable = {}
> command = registrar.command(cmdtable)
> @command(b'bulkwrite')
> def bulkwrite(ui, repo, *pats, **opts):
> ui.write(b'going to write massive data\n')
> ui.flush()
> t = time.time()
> while time.time() - t < 2:
> ui.write(b'x' * 1023 + b'\n') # will be interrupted by SIGPIPE
> raise error.Abort(b"write() doesn't block")
> EOF
$ cat > $TESTTMP/fakepager.py <<'EOF'
> import sys
> import time
> sys.stdout.write('paged! %r\n' % sys.stdin.readline())
> time.sleep(1) # new data will be written
> EOF
$ cat >> .hg/hgrc <<EOF
> [extensions]
> bulkwrite = $TESTTMP/bulkwrite.py
> EOF
$ chg bulkwrite --pager=on --color no --config ui.formatted=True
paged! 'going to write massive data\n'
killed! (?)
[255]
$ chg bulkwrite --pager=on --color no --config ui.formatted=True
paged! 'going to write massive data\n'
killed! (?)
[255]
$ cd ..
missing stdio
-------------
$ CHGDEBUG=1 chg version -q 0<&-
chg: debug: * stdio fds are missing (glob)
chg: debug: * execute original hg (glob)
Mercurial Distributed SCM * (glob)
server lifecycle
----------------
chg server should be restarted on code change, and old server will shut down
automatically. In this test, we use the following time parameters:
- "sleep 1" to make mtime different
- "sleep 2" to notice mtime change (polling interval is 1 sec)
set up repository with an extension:
$ chg init extreload
$ cd extreload
$ touch dummyext.py
$ cat <<EOF >> .hg/hgrc
> [extensions]
> dummyext = dummyext.py
> EOF
isolate socket directory for stable result:
$ OLDCHGSOCKNAME=$CHGSOCKNAME
$ mkdir chgsock
$ CHGSOCKNAME=`pwd`/chgsock/server
warm up server:
$ CHGDEBUG= chg log 2>&1 | egrep 'instruction|start'
chg: debug: * start cmdserver at $TESTTMP/extreload/chgsock/server.* (glob)
new server should be started if extension modified:
$ sleep 1
$ touch dummyext.py
$ CHGDEBUG= chg log 2>&1 | egrep 'instruction|start'
chg: debug: * instruction: unlink $TESTTMP/extreload/chgsock/server-* (glob)
chg: debug: * instruction: reconnect (glob)
chg: debug: * start cmdserver at $TESTTMP/extreload/chgsock/server.* (glob)
old server will shut down, while new server should still be reachable:
$ sleep 2
$ CHGDEBUG= chg log 2>&1 | (egrep 'instruction|start' || true)
socket file should never be unlinked by old server:
(simulates unowned socket by updating mtime, which makes sure server exits
at polling cycle)
$ ls chgsock/server-*
chgsock/server-* (glob)
$ touch chgsock/server-*
$ sleep 2
$ ls chgsock/server-*
chgsock/server-* (glob)
since no server is reachable from socket file, new server should be started:
(this test makes sure that old server shut down automatically)
$ CHGDEBUG= chg log 2>&1 | egrep 'instruction|start'
chg: debug: * start cmdserver at $TESTTMP/extreload/chgsock/server.* (glob)
shut down servers and restore environment:
$ rm -R chgsock
$ sleep 2
$ CHGSOCKNAME=$OLDCHGSOCKNAME
$ cd ..
check that server events are recorded:
$ ls log
server.log
server.log.1
print only the last 10 lines, since we aren't sure how many records are
preserved (since setprocname isn't available on py3 and pure version,
the 10th-most-recent line is different when using py3):
$ cat log/server.log.1 log/server.log | tail -10 | filterlog
YYYY/MM/DD HH:MM:SS (PID)> confighash = ... mtimehash = ... (no-setprocname !)
YYYY/MM/DD HH:MM:SS (PID)> forked worker process (pid=...)
YYYY/MM/DD HH:MM:SS (PID)> setprocname: ... (setprocname !)
YYYY/MM/DD HH:MM:SS (PID)> received fds: ...
YYYY/MM/DD HH:MM:SS (PID)> chdir to '$TESTTMP/extreload'
YYYY/MM/DD HH:MM:SS (PID)> setumask 18
YYYY/MM/DD HH:MM:SS (PID)> setenv: ...
YYYY/MM/DD HH:MM:SS (PID)> confighash = ... mtimehash = ...
YYYY/MM/DD HH:MM:SS (PID)> validate: []
YYYY/MM/DD HH:MM:SS (PID)> worker process exited (pid=...)
YYYY/MM/DD HH:MM:SS (PID)> $TESTTMP/extreload/chgsock/server-... is not owned, exiting.
global data mutated by schems
-----------------------------
$ hg init schemes
$ cd schemes
initial state
$ cat > .hg/hgrc <<'EOF'
> [extensions]
> schemes =
> [schemes]
> foo = https://foo.example.org/
> EOF
$ hg debugexpandscheme foo://expanded
https://foo.example.org/expanded
$ hg debugexpandscheme bar://unexpanded
bar://unexpanded
add bar
$ cat > .hg/hgrc <<'EOF'
> [extensions]
> schemes =
> [schemes]
> foo = https://foo.example.org/
> bar = https://bar.example.org/
> EOF
$ hg debugexpandscheme foo://expanded
https://foo.example.org/expanded
$ hg debugexpandscheme bar://expanded
https://bar.example.org/expanded
remove foo
$ cat > .hg/hgrc <<'EOF'
> [extensions]
> schemes =
> [schemes]
> bar = https://bar.example.org/
> EOF
$ hg debugexpandscheme foo://unexpanded
foo://unexpanded
$ hg debugexpandscheme bar://expanded
https://bar.example.org/expanded
$ cd ..
repository cache
----------------
$ rm log/server.log*
$ cp $HGRCPATH.unconfigured $HGRCPATH
$ cat <<'EOF' >> $HGRCPATH
> [cmdserver]
> log = $TESTTMP/log/server.log
> max-repo-cache = 1
> track-log = command, repocache
> EOF
isolate socket directory for stable result:
$ OLDCHGSOCKNAME=$CHGSOCKNAME
$ mkdir chgsock
$ CHGSOCKNAME=`pwd`/chgsock/server
create empty repo and cache it:
$ hg init cached
$ hg id -R cached
000000000000 tip
$ sleep 1
modify repo (and cache will be invalidated):
$ touch cached/a
$ hg ci -R cached -Am 'add a'
adding a
$ sleep 1
read cached repo:
$ hg log -R cached
changeset: 0:ac82d8b1f7c4
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: add a
$ sleep 1
discard cached from LRU cache:
$ hg clone cached cached2
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg id -R cached2
ac82d8b1f7c4 tip
$ sleep 1
read uncached repo:
$ hg log -R cached
changeset: 0:ac82d8b1f7c4
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: add a
$ sleep 1
shut down servers and restore environment:
$ rm -R chgsock
$ sleep 2
$ CHGSOCKNAME=$OLDCHGSOCKNAME
check server log:
$ cat log/server.log | filterlog
YYYY/MM/DD HH:MM:SS (PID)> worker process exited (pid=...)
YYYY/MM/DD HH:MM:SS (PID)> worker process exited (pid=...) (?)
YYYY/MM/DD HH:MM:SS (PID)> init cached
YYYY/MM/DD HH:MM:SS (PID)> id -R cached
YYYY/MM/DD HH:MM:SS (PID)> loaded repo into cache: $TESTTMP/cached (in ...s)
YYYY/MM/DD HH:MM:SS (PID)> repo from cache: $TESTTMP/cached
YYYY/MM/DD HH:MM:SS (PID)> ci -R cached -Am 'add a'
YYYY/MM/DD HH:MM:SS (PID)> loaded repo into cache: $TESTTMP/cached (in ...s)
YYYY/MM/DD HH:MM:SS (PID)> repo from cache: $TESTTMP/cached
YYYY/MM/DD HH:MM:SS (PID)> log -R cached
YYYY/MM/DD HH:MM:SS (PID)> loaded repo into cache: $TESTTMP/cached (in ...s)
YYYY/MM/DD HH:MM:SS (PID)> clone cached cached2
YYYY/MM/DD HH:MM:SS (PID)> id -R cached2
YYYY/MM/DD HH:MM:SS (PID)> loaded repo into cache: $TESTTMP/cached2 (in ...s)
YYYY/MM/DD HH:MM:SS (PID)> log -R cached
YYYY/MM/DD HH:MM:SS (PID)> loaded repo into cache: $TESTTMP/cached (in ...s)
Test that chg works (sets to the user's actual LC_CTYPE) even when python
"coerces" the locale (py3.7+)
$ cat > $TESTTMP/debugenv.py <<EOF
> from mercurial import encoding
> from mercurial import registrar
> cmdtable = {}
> command = registrar.command(cmdtable)
> @command(b'debugenv', [], b'', norepo=True)
> def debugenv(ui):
> for k in [b'LC_ALL', b'LC_CTYPE', b'LANG']:
> v = encoding.environ.get(k)
> if v is not None:
> ui.write(b'%s=%s\n' % (k, encoding.environ[k]))
> EOF
(hg keeps python's modified LC_CTYPE, chg doesn't)
$ (unset LC_ALL; unset LANG; LC_CTYPE= "$CHGHG" \
> --config extensions.debugenv=$TESTTMP/debugenv.py debugenv)
LC_CTYPE=C.UTF-8 (py37 !)
LC_CTYPE= (no-py37 !)
$ (unset LC_ALL; unset LANG; LC_CTYPE= chg \
> --config extensions.debugenv=$TESTTMP/debugenv.py debugenv)
LC_CTYPE=
$ (unset LC_ALL; unset LANG; LC_CTYPE=unsupported_value chg \
> --config extensions.debugenv=$TESTTMP/debugenv.py debugenv)
LC_CTYPE=unsupported_value
$ (unset LC_ALL; unset LANG; LC_CTYPE= chg \
> --config extensions.debugenv=$TESTTMP/debugenv.py debugenv)
LC_CTYPE=
$ LANG= LC_ALL= LC_CTYPE= chg \
> --config extensions.debugenv=$TESTTMP/debugenv.py debugenv
LC_ALL=
LC_CTYPE=
LANG=