tests/test-archive.t

hg-core: add a compilation error if trying to compile outside of Linux

For now, we can only provide support for Linux in `hg-core`, so we have to be
explicit about it in case anyone wonders why their Dirstate is suddenly broken,
or why the crate does not compile (on Windows for example).

Differential Revision: https://phab.mercurial-scm.org/D8246

#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)

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)
  $ 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)
  $ 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 % $1 allowed should give 200
  >     get-with-headers.py --bodyfile body localhost:$HGPORT "archive/tip.$2" -
  >     f --size --sha1 body
  >     echo % $3 and $4 disallowed should both give 403
  >     get-with-headers.py --bodyfile body localhost:$HGPORT "archive/tip.$3" -
  >     f --size --sha1 body
  >     get-with-headers.py --bodyfile body localhost:$HGPORT "archive/tip.$4" -
  >     f --size --sha1 body
  >     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
  content-disposition: attachment; filename=test-archive-1701ef1f1510.tar.gz
  content-type: application/x-gzip
  date: $HTTP_DATE$
  etag: W/"*" (glob)
  server: testing stub value
  transfer-encoding: chunked
  
  body: size=408, sha1=8fa06531bddecc365a9f5edb0f88b65974bfe505 (no-py38 !)
  body: size=506, sha1=70926a04cb8887d0bcccf5380488100a10222def (py38 !)
  % tar.bz2 and zip disallowed should both give 403
  403 Archive type not allowed: bz2
  content-type: text/html; charset=ascii
  date: $HTTP_DATE$
  etag: W/"*" (glob)
  server: testing stub value
  transfer-encoding: chunked
  
  body: size=1451, sha1=4c5cf0f574446c44feb7f88f4e0e2a56bd92c352
  403 Archive type not allowed: zip
  content-type: text/html; charset=ascii
  date: $HTTP_DATE$
  etag: W/"*" (glob)
  server: testing stub value
  transfer-encoding: chunked
  
  body: size=1451, sha1=cbfa5574b337348bfd0564cc534474d002e7d6c7
  $ test_archtype bz2 tar.bz2 zip tar.gz
  % bz2 allowed should give 200
  200 Script output follows
  content-disposition: attachment; filename=test-archive-1701ef1f1510.tar.bz2
  content-type: application/x-bzip2
  date: $HTTP_DATE$
  etag: W/"*" (glob)
  server: testing stub value
  transfer-encoding: chunked
  
  body: size=426, sha1=8d87f5aba6e14f1bfea6c232985982c278b2fb0b (no-py38 !)
  body: size=506, sha1=1bd1f8e8d3701704bd4385038bd9c09b81c77f4e (py38 !)
  % zip and tar.gz disallowed should both give 403
  403 Archive type not allowed: zip
  content-type: text/html; charset=ascii
  date: $HTTP_DATE$
  etag: W/"*" (glob)
  server: testing stub value
  transfer-encoding: chunked
  
  body: size=1451, sha1=cbfa5574b337348bfd0564cc534474d002e7d6c7
  403 Archive type not allowed: gz
  content-type: text/html; charset=ascii
  date: $HTTP_DATE$
  etag: W/"*" (glob)
  server: testing stub value
  transfer-encoding: chunked
  
  body: size=1450, sha1=71f0b12d59f85fdcfe8ff493e2dc66863f2f7734
  $ test_archtype zip zip tar.gz tar.bz2
  % zip allowed should give 200
  200 Script output follows
  content-disposition: attachment; filename=test-archive-1701ef1f1510.zip
  content-type: application/zip
  date: $HTTP_DATE$
  etag: W/"*" (glob)
  server: testing stub value
  transfer-encoding: chunked
  
  body: size=(1377|1461|1489), sha1=(677b14d3d048778d5eb5552c14a67e6192068650|be6d3983aa13dfe930361b2569291cdedd02b537|1897e496871aa89ad685a92b936f5fa0d008b9e8) (re)
  % tar.gz and tar.bz2 disallowed should both give 403
  403 Archive type not allowed: gz
  content-type: text/html; charset=ascii
  date: $HTTP_DATE$
  etag: W/"*" (glob)
  server: testing stub value
  transfer-encoding: chunked
  
  body: size=1450, sha1=71f0b12d59f85fdcfe8ff493e2dc66863f2f7734
  403 Archive type not allowed: bz2
  content-type: text/html; charset=ascii
  date: $HTTP_DATE$
  etag: W/"*" (glob)
  server: testing stub value
  transfer-encoding: chunked
  
  body: size=1451, sha1=4c5cf0f574446c44feb7f88f4e0e2a56bd92c352

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
  content-disposition: attachment; filename=test-archive-1701ef1f1510.tar.gz
  content-type: application/x-gzip
  date: $HTTP_DATE$
  etag: W/"*" (glob)
  server: testing stub value
  transfer-encoding: chunked
  
  body: size=408, sha1=8fa06531bddecc365a9f5edb0f88b65974bfe505 (no-py38 !)
  body: size=506, sha1=70926a04cb8887d0bcccf5380488100a10222def (py38 !)
  % tar.bz2 and zip disallowed should both give 403
  403 Archive type not allowed: bz2
  content-type: text/html; charset=ascii
  date: $HTTP_DATE$
  etag: W/"*" (glob)
  server: testing stub value
  transfer-encoding: chunked
  
  body: size=1451, sha1=4c5cf0f574446c44feb7f88f4e0e2a56bd92c352
  403 Archive type not allowed: zip
  content-type: text/html; charset=ascii
  date: $HTTP_DATE$
  etag: W/"*" (glob)
  server: testing stub value
  transfer-encoding: chunked
  
  body: size=1451, sha1=cbfa5574b337348bfd0564cc534474d002e7d6c7
  $ test_archtype_deprecated bz2 tar.bz2 zip tar.gz
  % bz2 allowed should give 200
  200 Script output follows
  content-disposition: attachment; filename=test-archive-1701ef1f1510.tar.bz2
  content-type: application/x-bzip2
  date: $HTTP_DATE$
  etag: W/"*" (glob)
  server: testing stub value
  transfer-encoding: chunked
  
  body: size=426, sha1=8d87f5aba6e14f1bfea6c232985982c278b2fb0b (no-py38 !)
  body: size=506, sha1=1bd1f8e8d3701704bd4385038bd9c09b81c77f4e (py38 !)
  % zip and tar.gz disallowed should both give 403
  403 Archive type not allowed: zip
  content-type: text/html; charset=ascii
  date: $HTTP_DATE$
  etag: W/"*" (glob)
  server: testing stub value
  transfer-encoding: chunked
  
  body: size=1451, sha1=cbfa5574b337348bfd0564cc534474d002e7d6c7
  403 Archive type not allowed: gz
  content-type: text/html; charset=ascii
  date: $HTTP_DATE$
  etag: W/"*" (glob)
  server: testing stub value
  transfer-encoding: chunked
  
  body: size=1450, sha1=71f0b12d59f85fdcfe8ff493e2dc66863f2f7734
  $ test_archtype_deprecated zip zip tar.gz tar.bz2
  % zip allowed should give 200
  200 Script output follows
  content-disposition: attachment; filename=test-archive-1701ef1f1510.zip
  content-type: application/zip
  date: $HTTP_DATE$
  etag: W/"*" (glob)
  server: testing stub value
  transfer-encoding: chunked
  
  body: size=(1377|1461|1489), sha1=(677b14d3d048778d5eb5552c14a67e6192068650|be6d3983aa13dfe930361b2569291cdedd02b537|1897e496871aa89ad685a92b936f5fa0d008b9e8) (re)
  % tar.gz and tar.bz2 disallowed should both give 403
  403 Archive type not allowed: gz
  content-type: text/html; charset=ascii
  date: $HTTP_DATE$
  etag: W/"*" (glob)
  server: testing stub value
  transfer-encoding: chunked
  
  body: size=1450, sha1=71f0b12d59f85fdcfe8ff493e2dc66863f2f7734
  403 Archive type not allowed: bz2
  content-type: text/html; charset=ascii
  date: $HTTP_DATE$
  etag: W/"*" (glob)
  server: testing stub value
  transfer-encoding: chunked
  
  body: size=1451, sha1=4c5cf0f574446c44feb7f88f4e0e2a56bd92c352

  $ 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)

test xz support only available in Python 3.4

#if py3
  $ hg archive ../archive.txz
  $ which xz >/dev/null && xz -l ../archive.txz | head -n1 || true
  Strms  Blocks   Compressed Uncompressed  Ratio  Check   Filename (xz !)
  $ rm -f ../archive.txz
#else
  $ hg archive ../archive.txz
  abort: xz compression is only available in Python 3
  [255]
#endif

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 ..