tests/test-archive.t

revlog: improve delta generation heuristics for generaldelta

Without this change, pulls (and clones) into a generaldelta repository could
generate very inefficient revlogs, the size of which could be at least twice
the original size.

This was caused by the generated delta chains covering too large distances,
causing new chains to be built far too often. This change addresses the
problem by forcing a delta against second parent or against the previous
revision, when the first parent delta is in danger of creating a long chain.

  $ 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
  $ echo "[web]" >> .hg/hgrc
  $ echo "name = test-archive" >> .hg/hgrc
  $ cp .hg/hgrc .hg/hgrc-base
  > test_archtype() {
  >     echo "allow_archive = $1" >> .hg/hgrc
  >     hg serve -p $HGPORT -d --pid-file=hg.pid -E errors.log
  >     cat hg.pid >> $DAEMON_PIDS
  >     echo % $1 allowed should give 200
  >     "$TESTDIR/get-with-headers.py" localhost:$HGPORT "/archive/tip.$2" | head -n 1
  >     echo % $3 and $4 disallowed should both give 403
  >     "$TESTDIR/get-with-headers.py" localhost:$HGPORT "/archive/tip.$3" | head -n 1
  >     "$TESTDIR/get-with-headers.py" localhost:$HGPORT "/archive/tip.$4" | head -n 1
  >     "$TESTDIR/killdaemons.py"
  >     cat errors.log
  >     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

  $ 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

invalid arch type should give 404

  $ "$TESTDIR/get-with-headers.py" localhost:$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
  > import os, sys, urllib2
  > try:
  >     # Set stdout to binary mode for win32 platforms
  >     import msvcrt
  >     msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY)
  > except ImportError:
  >     pass
  > node, archive = sys.argv[1:]
  > f = urllib2.urlopen('http://127.0.0.1:%s/?cmd=archive;node=%s;type=%s'
  >                     % (os.environ['HGPORT'], node, archive))
  > sys.stdout.write(f.read())
  > EOF
  $ python getarchive.py "$TIP" gz | gunzip | tar tf - 2>/dev/null
  test-archive-2c0277f05ed4/.hg_archival.txt
  test-archive-2c0277f05ed4/bar
  test-archive-2c0277f05ed4/baz/bletch
  test-archive-2c0277f05ed4/foo
  $ python getarchive.py "$TIP" bz2 | bunzip2 | tar tf - 2>/dev/null
  test-archive-2c0277f05ed4/.hg_archival.txt
  test-archive-2c0277f05ed4/bar
  test-archive-2c0277f05ed4/baz/bletch
  test-archive-2c0277f05ed4/foo
  $ python getarchive.py "$TIP" zip > archive.zip
  $ unzip -t archive.zip
  Archive:  archive.zip
      testing: test-archive-2c0277f05ed4/.hg_archival.txt   OK
      testing: test-archive-2c0277f05ed4/bar   OK
      testing: test-archive-2c0277f05ed4/baz/bletch   OK
      testing: test-archive-2c0277f05ed4/foo   OK
  No errors detected in compressed data of archive.zip.

  $ "$TESTDIR/killdaemons.py"

  $ hg archive -t tar test.tar
  $ tar tf test.tar
  test/.hg_archival.txt
  test/bar
  test/baz/bletch
  test/foo

  $ hg archive -t tbz2 -X baz test.tar.bz2
  $ bunzip2 -dc test.tar.bz2 | tar tf - 2>/dev/null
  test/.hg_archival.txt
  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-2c0277f05ed4/.hg_archival.txt
  test-2c0277f05ed4/bar
  test-2c0277f05ed4/baz/bletch
  test-2c0277f05ed4/foo

  $ hg archive autodetected_test.tar
  $ tar tf autodetected_test.tar
  autodetected_test/.hg_archival.txt
  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/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
  > try:
  >     from hashlib import md5
  > except ImportError:
  >     from md5 import md5
  > import sys
  > f1, f2 = sys.argv[1:3]
  > h1 = md5(file(f1, 'rb').read()).hexdigest()
  > h2 = md5(file(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
      testing: test/baz/bletch          OK
      testing: test/foo                 OK
  No errors detected in compressed data of test.zip.

  $ hg archive -t tar - | tar tf - 2>/dev/null
  test-2c0277f05ed4/.hg_archival.txt
  test-2c0277f05ed4/bar
  test-2c0277f05ed4/baz/bletch
  test-2c0277f05ed4/foo

  $ hg archive -r 0 -t tar rev-%r.tar
  $ if [ -f rev-0.tar ]; then
  $ fi

test .hg_archival.txt

  $ hg archive ../test-tags
  $ cat ../test-tags/.hg_archival.txt
  repo: daa7f7c60e0a224faa4ff77ca41b2760562af264
  node: 2c0277f05ed49d1c8328fb9ba92fba7a5ebcb33e
  branch: default
  latesttag: null
  latesttagdistance: 3
  $ 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
  > [extensions]
  > progress =
  > [progress]
  > assume-tty = 1
  > format = topic bar number
  > delay = 0
  > refresh = 0
  > width = 60
  > EOF

  $ hg archive ../with-progress 2>&1 | $TESTDIR/filtercr.py
  
  archiving [                                           ] 0/4
  archiving [                                           ] 0/4
  archiving [=========>                                 ] 1/4
  archiving [=========>                                 ] 1/4
  archiving [====================>                      ] 2/4
  archiving [====================>                      ] 2/4
  archiving [===============================>           ] 3/4
  archiving [===============================>           ] 3/4
  archiving [==========================================>] 4/4
  archiving [==========================================>] 4/4
                                                              \r (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
  Archive:  ../old.zip
  \s*Length.* (re)
  *-----* (glob)
  *147*80*00:00*old/.hg_archival.txt (glob)
  *0*80*00:00*old/old (glob)
  *-----* (glob)
  \s*147\s+2 files (re)