censor: make censor acquire locks before processing
Before this patch, "hg censor" executes below:
- without acquisition of wlock, examine whether the working
directory refers the revision of the file to be censored or not
- without acquisition of store lock (slock), replace existing
filelog of file to be censored with censored one,
Replacement consists of steps below, and it is assumed that the
destination filelog at (1) isn't changed before renaming at (3).
1. read existing filelog in
2. write filelog entries (both censored and not) into temporary file
3. rename from temporary file to existing filelog to be censored
It may cause unintentional result, if another command runs parallelly
(see also issue4368).
This patch makes "hg censor" acquire wlock and slock before
processing.
#require test-repo slow
Set vars:
$ CONTRIBDIR="$TESTDIR/../contrib"
Prepare repo-a:
$ hg init repo-a
$ cd repo-a
$ echo this is file a > a
$ hg add a
$ hg commit -m first
$ echo adding to file a >> a
$ hg commit -m second
$ echo adding more to file a >> a
$ hg commit -m third
$ hg up -r 0
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo merge-this >> a
$ hg commit -m merge-able
created new head
$ hg up -r 2
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
perfstatus
$ cat > .hg/hgrc << EOF
> [extensions]
> perfstatusext=$CONTRIBDIR/perf.py
> EOF
$ hg help perfstatusext
perfstatusext extension - helper extension to measure performance
list of commands:
perfaddremove
(no help text available)
perfancestors
(no help text available)
perfancestorset
(no help text available)
perfannotate (no help text available)
perfbranchmap
benchmark the update of a branchmap
perfcca (no help text available)
perfchangeset
(no help text available)
perfctxfiles (no help text available)
perfdiffwd Profile diff of working directory changes
perfdirfoldmap
(no help text available)
perfdirs (no help text available)
perfdirstate (no help text available)
perfdirstatedirs
(no help text available)
perfdirstatefoldmap
(no help text available)
perfdirstatewrite
(no help text available)
perffncacheencode
(no help text available)
perffncacheload
(no help text available)
perffncachewrite
(no help text available)
perfheads (no help text available)
perfindex (no help text available)
perfloadmarkers
benchmark the time to parse the on-disk markers for a repo
perflog (no help text available)
perflookup (no help text available)
perflrucachedict
(no help text available)
perfmanifest (no help text available)
perfmergecalculate
(no help text available)
perfmoonwalk benchmark walking the changelog backwards
perfnodelookup
(no help text available)
perfparents (no help text available)
perfpathcopies
(no help text available)
perfrawfiles (no help text available)
perfrevlog (no help text available)
perfrevrange (no help text available)
perfrevset benchmark the execution time of a revset
perfstartup (no help text available)
perfstatus (no help text available)
perftags (no help text available)
perftemplating
(no help text available)
perfvolatilesets
benchmark the computation of various volatile set
perfwalk (no help text available)
(use "hg help -v perfstatusext" to show built-in aliases and global options)
$ filter_perf_output () {
> egrep -v 'wall' || true
> }
$ hg perfaddremove 2>&1 | filter_perf_output
$ hg perfancestors 2>&1 | filter_perf_output
$ hg perfancestorset 2 2>&1 | filter_perf_output
$ hg perfannotate a 2>&1 | filter_perf_output
! result: 3
$ hg perfbranchmap 2>&1 | filter_perf_output
! base
! immutable
! served
! visible
! None
$ hg perfcca 2>&1 | filter_perf_output
! result: <mercurial.scmutil.casecollisionauditor object at 0x*> (glob)
$ hg perfchangeset 2 2>&1 | filter_perf_output
$ hg perfctxfiles 2 2>&1 | filter_perf_output
$ hg perfdiffwd 2>&1 | filter_perf_output
! diffopts: none
! diffopts: -w
! diffopts: -b
! diffopts: -B
! diffopts: -wB
$ hg perfdirfoldmap 2>&1 | filter_perf_output
$ hg perfdirs 2>&1 | filter_perf_output
$ hg perfdirstate 2>&1 | filter_perf_output
$ hg perfdirstatedirs 2>&1 | filter_perf_output
$ hg perfdirstatefoldmap 2>&1 | filter_perf_output
$ hg perfdirstatewrite 2>&1 | filter_perf_output
$ hg perffncacheencode 2>&1 | filter_perf_output
$ hg perffncacheload 2>&1 | filter_perf_output
$ hg perffncachewrite 2>&1 | filter_perf_output
transaction abort!
rollback completed
$ hg perfheads 2>&1 | filter_perf_output
$ hg perfindex 2>&1 | filter_perf_output
$ hg perfloadmarkers 2>&1 | filter_perf_output
$ hg perflog 2>&1 | filter_perf_output
$ hg perflookup 2 2>&1 | filter_perf_output
! result: 20
$ hg perflrucache 2>&1 | filter_perf_output
! init
! gets
! sets
! mixed
$ hg perfmanifest 2 2>&1 | filter_perf_output
$ hg perfmergecalculate -r 3 2>&1 | filter_perf_output
$ hg perfmoonwalk 2>&1 | filter_perf_output
$ hg perfnodelookup 2 2>&1 | filter_perf_output
$ hg perfpathcopies 1 2 2>&1 | filter_perf_output
$ hg perfrawfiles 2 2>&1 | filter_perf_output
$ hg perfrevlog .hg/store/data/a.i 2>&1 | filter_perf_output
$ hg perfrevrange 2>&1 | filter_perf_output
$ hg perfrevset 'all()' 2>&1 | filter_perf_output
$ hg perfstartup 2>&1 | filter_perf_output
$ hg perfstatus 2>&1 | filter_perf_output
$ hg perftags 2>&1 | filter_perf_output
! result: 1
$ hg perftemplating 2>&1 | filter_perf_output
$ hg perfvolatilesets 2>&1 | filter_perf_output
! bumped
! divergent
! extinct
! obsolete
! suspended
! unstable
! base
! immutable
! served
! visible
$ hg perfwalk 2>&1 | filter_perf_output
! result: 1
perf parents needs a bigger repo, use the main repo
$ hg perfparents \
> --config extensions.perfstatusext=$CONTRIBDIR/perf.py \
> -R $TESTDIR/.. 2>&1 |grep -v 'obsolete feature' | filter_perf_output