bundle2: implement consume() API on unbundlepart
We want bundle parts to not be seekable by default. That means
eliminating the generic seek() method.
A common pattern in bundle2.py is to seek to the end of the part
data. This is mainly used by the part iteration code to ensure
the underlying stream is advanced to the next bundle part.
In this commit, we establish a dedicated API for consuming a
bundle2 part data. We switch users of seek() to it.
The old implementation of seek(0, os.SEEK_END) would effectively
call self.read(). The new implementation calls self.read(32768)
in a loop. The old implementation would therefore assemble a
buffer to hold all remaining data being seeked over. For seeking
over large bundle parts, this would involve a large allocation and
a lot of overhead to collect intermediate data! This overhead can
be seen in the results for `hg perfbundleread`:
! bundle2 iterparts()
! wall 10.891305 comb 10.820000 user 7.990000 sys 2.830000 (best of 3)
! wall 8.070791 comb 8.060000 user 7.180000 sys 0.880000 (best of 3)
! bundle2 part seek()
! wall 12.991478 comb 10.390000 user 7.720000 sys 2.670000 (best of 3)
! wall 10.370142 comb 10.350000 user 7.430000 sys 2.920000 (best of 3)
Of course, skipping over large payload data isn't likely very common.
So I doubt the performance wins will be observed in the wild.
Differential Revision: https://phab.mercurial-scm.org/D1388
#require serve
$ hg init test
$ cd test
$ echo foo>foo
$ hg commit -Am 1 -d '1 0'
adding foo
$ echo bar>bar
$ hg commit -Am 2 -d '2 0'
adding bar
$ mkdir baz
$ echo bletch>baz/bletch
$ hg commit -Am 3 -d '1000000000 0'
adding baz/bletch
$ hg init subrepo
$ touch subrepo/sub
$ hg -q -R subrepo ci -Am "init subrepo"
$ echo "subrepo = subrepo" > .hgsub
$ hg add .hgsub
$ hg ci -m "add subrepo"
$ cat >> $HGRCPATH <<EOF
> [extensions]
> share =
> EOF
hg subrepos are shared when the parent repo is shared
$ cd ..
$ hg share test shared1
updating working directory
sharing subrepo subrepo from $TESTTMP/test/subrepo
5 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cat shared1/subrepo/.hg/sharedpath
$TESTTMP/test/subrepo/.hg (no-eol) (glob)
hg subrepos are shared into existence on demand if the parent was shared
$ hg clone -qr 1 test clone1
$ hg share clone1 share2
updating working directory
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg -R clone1 -q pull
$ hg -R share2 update tip
sharing subrepo subrepo from $TESTTMP/test/subrepo
3 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cat share2/subrepo/.hg/sharedpath
$TESTTMP/test/subrepo/.hg (no-eol) (glob)
$ echo 'mod' > share2/subrepo/sub
$ hg -R share2 ci -Sqm 'subrepo mod'
$ hg -R clone1 update -C tip
cloning subrepo subrepo from $TESTTMP/test/subrepo
3 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ find share2 | egrep 'sharedpath|00.+\.i' | sort
share2/.hg/sharedpath
share2/subrepo/.hg/sharedpath
$ hg -R share2 unshare
unsharing subrepo 'subrepo'
$ find share2 | egrep 'sharedpath|00.+\.i' | sort
share2/.hg/00changelog.i
share2/.hg/sharedpath.old
share2/.hg/store/00changelog.i
share2/.hg/store/00manifest.i
share2/subrepo/.hg/00changelog.i
share2/subrepo/.hg/sharedpath.old
share2/subrepo/.hg/store/00changelog.i
share2/subrepo/.hg/store/00manifest.i
$ hg -R share2/subrepo log -r tip -T compact
1[tip] 559dcc9bfa65 1970-01-01 00:00 +0000 test
subrepo mod
$ rm -rf clone1
$ hg clone -qr 1 test clone1
$ hg share clone1 shared3
updating working directory
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg -R clone1 -q pull
$ hg -R shared3 archive --config ui.archivemeta=False -r tip -S archive
sharing subrepo subrepo from $TESTTMP/test/subrepo
$ cat shared3/subrepo/.hg/sharedpath
$TESTTMP/test/subrepo/.hg (no-eol) (glob)
$ diff -r archive test
Only in test: .hg
Common subdirectories: archive/baz and test/baz (?)
Common subdirectories: archive/subrepo and test/subrepo (?)
Only in test/subrepo: .hg
[1]
$ rm -rf archive
$ cd test
$ echo "[web]" >> .hg/hgrc
$ echo "name = test-archive" >> .hg/hgrc
$ echo "archivesubrepos = True" >> .hg/hgrc
$ cp .hg/hgrc .hg/hgrc-base
> test_archtype() {
> echo "allow_archive = $1" >> .hg/hgrc
> test_archtype_run "$@"
> }
> test_archtype_deprecated() {
> echo "allow$1 = True" >> .hg/hgrc
> test_archtype_run "$@"
> }
> test_archtype_run() {
> hg serve -p $HGPORT -d --pid-file=hg.pid -E errors.log \
> --config extensions.blackbox= --config blackbox.track=develwarn
> cat hg.pid >> $DAEMON_PIDS
> echo % $1 allowed should give 200
> get-with-headers.py localhost:$HGPORT "archive/tip.$2" | head -n 1
> echo % $3 and $4 disallowed should both give 403
> get-with-headers.py localhost:$HGPORT "archive/tip.$3" | head -n 1
> get-with-headers.py localhost:$HGPORT "archive/tip.$4" | head -n 1
> killdaemons.py
> cat errors.log
> hg blackbox --config extensions.blackbox= --config blackbox.track=
> cp .hg/hgrc-base .hg/hgrc
> }
check http return codes
$ test_archtype gz tar.gz tar.bz2 zip
% gz allowed should give 200
200 Script output follows
% tar.bz2 and zip disallowed should both give 403
403 Archive type not allowed: bz2
403 Archive type not allowed: zip
$ test_archtype bz2 tar.bz2 zip tar.gz
% bz2 allowed should give 200
200 Script output follows
% zip and tar.gz disallowed should both give 403
403 Archive type not allowed: zip
403 Archive type not allowed: gz
$ test_archtype zip zip tar.gz tar.bz2
% zip allowed should give 200
200 Script output follows
% tar.gz and tar.bz2 disallowed should both give 403
403 Archive type not allowed: gz
403 Archive type not allowed: bz2
check http return codes (with deprecated option)
$ test_archtype_deprecated gz tar.gz tar.bz2 zip
% gz allowed should give 200
200 Script output follows
% tar.bz2 and zip disallowed should both give 403
403 Archive type not allowed: bz2
403 Archive type not allowed: zip
$ test_archtype_deprecated bz2 tar.bz2 zip tar.gz
% bz2 allowed should give 200
200 Script output follows
% zip and tar.gz disallowed should both give 403
403 Archive type not allowed: zip
403 Archive type not allowed: gz
$ test_archtype_deprecated zip zip tar.gz tar.bz2
% zip allowed should give 200
200 Script output follows
% tar.gz and tar.bz2 disallowed should both give 403
403 Archive type not allowed: gz
403 Archive type not allowed: bz2
$ echo "allow_archive = gz bz2 zip" >> .hg/hgrc
$ hg serve -p $HGPORT -d --pid-file=hg.pid -E errors.log
$ cat hg.pid >> $DAEMON_PIDS
check archive links' order
$ get-with-headers.py localhost:$HGPORT "?revcount=1" | grep '/archive/tip.'
<a href="/archive/tip.zip">zip</a>
<a href="/archive/tip.tar.gz">gz</a>
<a href="/archive/tip.tar.bz2">bz2</a>
invalid arch type should give 404
$ get-with-headers.py localhost:$HGPORT "archive/tip.invalid" | head -n 1
404 Unsupported archive type: None
$ TIP=`hg id -v | cut -f1 -d' '`
$ QTIP=`hg id -q`
$ cat > getarchive.py <<EOF
> from __future__ import absolute_import
> import os
> import sys
> from mercurial import (
> util,
> )
> try:
> # Set stdout to binary mode for win32 platforms
> import msvcrt
> msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY)
> except ImportError:
> pass
> if len(sys.argv) <= 3:
> node, archive = sys.argv[1:]
> requeststr = 'cmd=archive;node=%s;type=%s' % (node, archive)
> else:
> node, archive, file = sys.argv[1:]
> requeststr = 'cmd=archive;node=%s;type=%s;file=%s' % (node, archive, file)
> try:
> stdout = sys.stdout.buffer
> except AttributeError:
> stdout = sys.stdout
> try:
> f = util.urlreq.urlopen('http://$LOCALIP:%s/?%s'
> % (os.environ['HGPORT'], requeststr))
> stdout.write(f.read())
> except util.urlerr.httperror as e:
> sys.stderr.write(str(e) + '\n')
> EOF
$ $PYTHON getarchive.py "$TIP" gz | gunzip | tar tf - 2>/dev/null
test-archive-1701ef1f1510/.hg_archival.txt
test-archive-1701ef1f1510/.hgsub
test-archive-1701ef1f1510/.hgsubstate
test-archive-1701ef1f1510/bar
test-archive-1701ef1f1510/baz/bletch
test-archive-1701ef1f1510/foo
test-archive-1701ef1f1510/subrepo/sub
$ $PYTHON getarchive.py "$TIP" bz2 | bunzip2 | tar tf - 2>/dev/null
test-archive-1701ef1f1510/.hg_archival.txt
test-archive-1701ef1f1510/.hgsub
test-archive-1701ef1f1510/.hgsubstate
test-archive-1701ef1f1510/bar
test-archive-1701ef1f1510/baz/bletch
test-archive-1701ef1f1510/foo
test-archive-1701ef1f1510/subrepo/sub
$ $PYTHON getarchive.py "$TIP" zip > archive.zip
$ unzip -t archive.zip
Archive: archive.zip
testing: test-archive-1701ef1f1510/.hg_archival.txt*OK (glob)
testing: test-archive-1701ef1f1510/.hgsub*OK (glob)
testing: test-archive-1701ef1f1510/.hgsubstate*OK (glob)
testing: test-archive-1701ef1f1510/bar*OK (glob)
testing: test-archive-1701ef1f1510/baz/bletch*OK (glob)
testing: test-archive-1701ef1f1510/foo*OK (glob)
testing: test-archive-1701ef1f1510/subrepo/sub*OK (glob)
No errors detected in compressed data of archive.zip.
test that we can download single directories and files
$ $PYTHON getarchive.py "$TIP" gz baz | gunzip | tar tf - 2>/dev/null
test-archive-1701ef1f1510/baz/bletch
$ $PYTHON getarchive.py "$TIP" gz foo | gunzip | tar tf - 2>/dev/null
test-archive-1701ef1f1510/foo
test that we detect file patterns that match no files
$ $PYTHON getarchive.py "$TIP" gz foobar
HTTP Error 404: file(s) not found: foobar
test that we reject unsafe patterns
$ $PYTHON getarchive.py "$TIP" gz relre:baz
HTTP Error 404: file(s) not found: relre:baz
$ killdaemons.py
$ hg archive -t tar test.tar
$ tar tf test.tar
test/.hg_archival.txt
test/.hgsub
test/.hgsubstate
test/bar
test/baz/bletch
test/foo
$ hg archive --debug -t tbz2 -X baz test.tar.bz2 --config progress.debug=true
archiving: 0/4 files (0.00%)
archiving: .hgsub 1/4 files (25.00%)
archiving: .hgsubstate 2/4 files (50.00%)
archiving: bar 3/4 files (75.00%)
archiving: foo 4/4 files (100.00%)
$ bunzip2 -dc test.tar.bz2 | tar tf - 2>/dev/null
test/.hg_archival.txt
test/.hgsub
test/.hgsubstate
test/bar
test/foo
$ hg archive -t tgz -p %b-%h test-%h.tar.gz
$ gzip -dc test-$QTIP.tar.gz | tar tf - 2>/dev/null
test-1701ef1f1510/.hg_archival.txt
test-1701ef1f1510/.hgsub
test-1701ef1f1510/.hgsubstate
test-1701ef1f1510/bar
test-1701ef1f1510/baz/bletch
test-1701ef1f1510/foo
$ hg archive autodetected_test.tar
$ tar tf autodetected_test.tar
autodetected_test/.hg_archival.txt
autodetected_test/.hgsub
autodetected_test/.hgsubstate
autodetected_test/bar
autodetected_test/baz/bletch
autodetected_test/foo
The '-t' should override autodetection
$ hg archive -t tar autodetect_override_test.zip
$ tar tf autodetect_override_test.zip
autodetect_override_test.zip/.hg_archival.txt
autodetect_override_test.zip/.hgsub
autodetect_override_test.zip/.hgsubstate
autodetect_override_test.zip/bar
autodetect_override_test.zip/baz/bletch
autodetect_override_test.zip/foo
$ for ext in tar tar.gz tgz tar.bz2 tbz2 zip; do
> hg archive auto_test.$ext
> if [ -d auto_test.$ext ]; then
> echo "extension $ext was not autodetected."
> fi
> done
$ cat > md5comp.py <<EOF
> from __future__ import absolute_import, print_function
> import hashlib
> import sys
> f1, f2 = sys.argv[1:3]
> h1 = hashlib.md5(open(f1, 'rb').read()).hexdigest()
> h2 = hashlib.md5(open(f2, 'rb').read()).hexdigest()
> print(h1 == h2 or "md5 differ: " + repr((h1, h2)))
> EOF
archive name is stored in the archive, so create similar archives and
rename them afterwards.
$ hg archive -t tgz tip.tar.gz
$ mv tip.tar.gz tip1.tar.gz
$ sleep 1
$ hg archive -t tgz tip.tar.gz
$ mv tip.tar.gz tip2.tar.gz
$ $PYTHON md5comp.py tip1.tar.gz tip2.tar.gz
True
$ hg archive -t zip -p /illegal test.zip
abort: archive prefix contains illegal components
[255]
$ hg archive -t zip -p very/../bad test.zip
$ hg archive --config ui.archivemeta=false -t zip -r 2 test.zip
$ unzip -t test.zip
Archive: test.zip
testing: test/bar*OK (glob)
testing: test/baz/bletch*OK (glob)
testing: test/foo*OK (glob)
No errors detected in compressed data of test.zip.
$ hg archive -t tar - | tar tf - 2>/dev/null
test-1701ef1f1510/.hg_archival.txt
test-1701ef1f1510/.hgsub
test-1701ef1f1510/.hgsubstate
test-1701ef1f1510/bar
test-1701ef1f1510/baz/bletch
test-1701ef1f1510/foo
$ hg archive -r 0 -t tar rev-%r.tar
$ [ -f rev-0.tar ]
test .hg_archival.txt
$ hg archive ../test-tags
$ cat ../test-tags/.hg_archival.txt
repo: daa7f7c60e0a224faa4ff77ca41b2760562af264
node: 1701ef1f151069b8747038e93b5186bb43a47504
branch: default
latesttag: null
latesttagdistance: 4
changessincelatesttag: 4
$ hg tag -r 2 mytag
$ hg tag -r 2 anothertag
$ hg archive -r 2 ../test-lasttag
$ cat ../test-lasttag/.hg_archival.txt
repo: daa7f7c60e0a224faa4ff77ca41b2760562af264
node: 2c0277f05ed49d1c8328fb9ba92fba7a5ebcb33e
branch: default
tag: anothertag
tag: mytag
$ hg archive -t bogus test.bogus
abort: unknown archive type 'bogus'
[255]
enable progress extension:
$ cp $HGRCPATH $HGRCPATH.no-progress
$ cat >> $HGRCPATH <<EOF
> [progress]
> assume-tty = 1
> format = topic bar number
> delay = 0
> refresh = 0
> width = 60
> EOF
$ hg archive ../with-progress
\r (no-eol) (esc)
archiving [ ] 0/6\r (no-eol) (esc)
archiving [======> ] 1/6\r (no-eol) (esc)
archiving [=============> ] 2/6\r (no-eol) (esc)
archiving [====================> ] 3/6\r (no-eol) (esc)
archiving [===========================> ] 4/6\r (no-eol) (esc)
archiving [==================================> ] 5/6\r (no-eol) (esc)
archiving [==========================================>] 6/6\r (no-eol) (esc)
\r (no-eol) (esc)
cleanup after progress extension test:
$ cp $HGRCPATH.no-progress $HGRCPATH
server errors
$ cat errors.log
empty repo
$ hg init ../empty
$ cd ../empty
$ hg archive ../test-empty
abort: no working directory: please specify a revision
[255]
old file -- date clamped to 1980
$ touch -t 197501010000 old
$ hg add old
$ hg commit -m old
$ hg archive ../old.zip
$ unzip -l ../old.zip | grep -v -- ----- | egrep -v files$
Archive: ../old.zip
\s*Length.* (re)
*172*80*00:00*old/.hg_archival.txt (glob)
*0*80*00:00*old/old (glob)
show an error when a provided pattern matches no files
$ hg archive -I file_that_does_not_exist.foo ../empty.zip
abort: no files match the archive pattern
[255]
$ hg archive -X * ../empty.zip
abort: no files match the archive pattern
[255]
$ cd ..
issue3600: check whether "hg archive" can create archive files which
are extracted with expected timestamp, even though TZ is not
configured as GMT.
$ mkdir issue3600
$ cd issue3600
$ hg init repo
$ echo a > repo/a
$ hg -R repo add repo/a
$ hg -R repo commit -m '#0' -d '456789012 21600'
$ cat > show_mtime.py <<EOF
> from __future__ import absolute_import, print_function
> import os
> import sys
> print(int(os.stat(sys.argv[1]).st_mtime))
> EOF
$ hg -R repo archive --prefix tar-extracted archive.tar
$ (TZ=UTC-3; export TZ; tar xf archive.tar)
$ $PYTHON show_mtime.py tar-extracted/a
456789012
$ hg -R repo archive --prefix zip-extracted archive.zip
$ (TZ=UTC-3; export TZ; unzip -q archive.zip)
$ $PYTHON show_mtime.py zip-extracted/a
456789012
$ cd ..