lib/bup/t/tgit.py

   1
   2 from __future__ import absolute_import
   3 from subprocess import check_call
   4 import struct, os, time
   5
   6 from wvtest import *
   7
   8 from bup import git
   9 from bup.helpers import localtime, log, mkdirp, readpipe
  10 from buptest import no_lingering_errors, test_tempdir
  11
  12
  13 top_dir = os.path.realpath('../../..')
  14 bup_exe = top_dir + '/bup'
  15
  16
  17 def exc(*cmd):
  18     cmd_str = ' '.join(cmd)
  19     print >> sys.stderr, cmd_str
  20     check_call(cmd)
  21
  22
  23 def exo(*cmd):
  24     cmd_str = ' '.join(cmd)
  25     print >> sys.stderr, cmd_str
  26     return readpipe(cmd)
  27
  28
  29 @wvtest
  30 def testmangle():
  31     with no_lingering_errors():
  32         afile  = 0o100644
  33         afile2 = 0o100770
  34         alink  = 0o120000
  35         adir   = 0o040000
  36         adir2  = 0o040777
  37         WVPASSEQ(git.mangle_name("a", adir2, adir), "a")
  38         WVPASSEQ(git.mangle_name(".bup", adir2, adir), ".bup.bupl")
  39         WVPASSEQ(git.mangle_name("a.bupa", adir2, adir), "a.bupa.bupl")
  40         WVPASSEQ(git.mangle_name("b.bup", alink, alink), "b.bup.bupl")
  41         WVPASSEQ(git.mangle_name("b.bu", alink, alink), "b.bu")
  42         WVPASSEQ(git.mangle_name("f", afile, afile2), "f")
  43         WVPASSEQ(git.mangle_name("f.bup", afile, afile2), "f.bup.bupl")
  44         WVPASSEQ(git.mangle_name("f.bup", afile, adir), "f.bup.bup")
  45         WVPASSEQ(git.mangle_name("f", afile, adir), "f.bup")
  46
  47         WVPASSEQ(git.demangle_name("f.bup", afile), ("f", git.BUP_CHUNKED))
  48         WVPASSEQ(git.demangle_name("f.bupl", afile), ("f", git.BUP_NORMAL))
  49         WVPASSEQ(git.demangle_name("f.bup.bupl", afile), ("f.bup", git.BUP_NORMAL))
  50
  51         WVPASSEQ(git.demangle_name(".bupm", afile), ('', git.BUP_NORMAL))
  52         WVPASSEQ(git.demangle_name(".bupm", adir), ('', git.BUP_CHUNKED))
  53
  54         # for safety, we ignore .bup? suffixes we don't recognize.  Future
  55         # versions might implement a .bup[a-z] extension as something other
  56         # than BUP_NORMAL.
  57         WVPASSEQ(git.demangle_name("f.bupa", afile), ("f.bupa", git.BUP_NORMAL))
  58
  59
  60 @wvtest
  61 def testencode():
  62     with no_lingering_errors():
  63         s = 'hello world'
  64         looseb = ''.join(git._encode_looseobj('blob', s))
  65         looset = ''.join(git._encode_looseobj('tree', s))
  66         loosec = ''.join(git._encode_looseobj('commit', s))
  67         packb = ''.join(git._encode_packobj('blob', s))
  68         packt = ''.join(git._encode_packobj('tree', s))
  69         packc = ''.join(git._encode_packobj('commit', s))
  70         WVPASSEQ(git._decode_looseobj(looseb), ('blob', s))
  71         WVPASSEQ(git._decode_looseobj(looset), ('tree', s))
  72         WVPASSEQ(git._decode_looseobj(loosec), ('commit', s))
  73         WVPASSEQ(git._decode_packobj(packb), ('blob', s))
  74         WVPASSEQ(git._decode_packobj(packt), ('tree', s))
  75         WVPASSEQ(git._decode_packobj(packc), ('commit', s))
  76         for i in xrange(10):
  77             WVPASS(git._encode_looseobj('blob', s, compression_level=i))
  78         def encode_pobj(n):
  79             return ''.join(git._encode_packobj('blob', s, compression_level=n))
  80         WVEXCEPT(ValueError, encode_pobj, -1)
  81         WVEXCEPT(ValueError, encode_pobj, 10)
  82         WVEXCEPT(ValueError, encode_pobj, 'x')
  83
  84
  85 @wvtest
  86 def testpacks():
  87     with no_lingering_errors():
  88         with test_tempdir('bup-tgit-') as tmpdir:
  89             os.environ['BUP_MAIN_EXE'] = bup_exe
  90             os.environ['BUP_DIR'] = bupdir = tmpdir + "/bup"
  91             git.init_repo(bupdir)
  92             git.verbose = 1
  93
  94             w = git.PackWriter()
  95             w.new_blob(os.urandom(100))
  96             w.new_blob(os.urandom(100))
  97             w.abort()
  98
  99             w = git.PackWriter()
 100             hashes = []
 101             nobj = 1000
 102             for i in range(nobj):
 103                 hashes.append(w.new_blob(str(i)))
 104             log('\n')
 105             nameprefix = w.close()
 106             print repr(nameprefix)
 107             WVPASS(os.path.exists(nameprefix + '.pack'))
 108             WVPASS(os.path.exists(nameprefix + '.idx'))
 109
 110             r = git.open_idx(nameprefix + '.idx')
 111             print repr(r.fanout)
 112
 113             for i in range(nobj):
 114                 WVPASS(r.find_offset(hashes[i]) > 0)
 115             WVPASS(r.exists(hashes[99]))
 116             WVFAIL(r.exists('\0'*20))
 117
 118             pi = iter(r)
 119             for h in sorted(hashes):
 120                 WVPASSEQ(str(next(pi)).encode('hex'), h.encode('hex'))
 121
 122             WVFAIL(r.find_offset('\0'*20))
 123
 124             r = git.PackIdxList(bupdir + '/objects/pack')
 125             WVPASS(r.exists(hashes[5]))
 126             WVPASS(r.exists(hashes[6]))
 127             WVFAIL(r.exists('\0'*20))
 128
 129
 130 @wvtest
 131 def test_pack_name_lookup():
 132     with no_lingering_errors():
 133         with test_tempdir('bup-tgit-') as tmpdir:
 134             os.environ['BUP_MAIN_EXE'] = bup_exe
 135             os.environ['BUP_DIR'] = bupdir = tmpdir + "/bup"
 136             git.init_repo(bupdir)
 137             git.verbose = 1
 138             packdir = git.repo('objects/pack')
 139
 140             idxnames = []
 141             hashes = []
 142
 143             for start in range(0,28,2):
 144                 w = git.PackWriter()
 145                 for i in range(start, start+2):
 146                     hashes.append(w.new_blob(str(i)))
 147                 log('\n')
 148                 idxnames.append(os.path.basename(w.close() + '.idx'))
 149
 150             r = git.PackIdxList(packdir)
 151             WVPASSEQ(len(r.packs), 2)
 152             for e,idxname in enumerate(idxnames):
 153                 for i in range(e*2, (e+1)*2):
 154                     WVPASSEQ(r.exists(hashes[i], want_source=True), idxname)
 155
 156
 157 @wvtest
 158 def test_long_index():
 159     with no_lingering_errors():
 160         with test_tempdir('bup-tgit-') as tmpdir:
 161             os.environ['BUP_MAIN_EXE'] = bup_exe
 162             os.environ['BUP_DIR'] = bupdir = tmpdir + "/bup"
 163             git.init_repo(bupdir)
 164             w = git.PackWriter()
 165             obj_bin = struct.pack('!IIIII',
 166                     0x00112233, 0x44556677, 0x88990011, 0x22334455, 0x66778899)
 167             obj2_bin = struct.pack('!IIIII',
 168                     0x11223344, 0x55667788, 0x99001122, 0x33445566, 0x77889900)
 169             obj3_bin = struct.pack('!IIIII',
 170                     0x22334455, 0x66778899, 0x00112233, 0x44556677, 0x88990011)
 171             pack_bin = struct.pack('!IIIII',
 172                     0x99887766, 0x55443322, 0x11009988, 0x77665544, 0x33221100)
 173             idx = list(list() for i in xrange(256))
 174             idx[0].append((obj_bin, 1, 0xfffffffff))
 175             idx[0x11].append((obj2_bin, 2, 0xffffffffff))
 176             idx[0x22].append((obj3_bin, 3, 0xff))
 177             w.count = 3
 178             name = tmpdir + '/tmp.idx'
 179             r = w._write_pack_idx_v2(name, idx, pack_bin)
 180             i = git.PackIdxV2(name, open(name, 'rb'))
 181             WVPASSEQ(i.find_offset(obj_bin), 0xfffffffff)
 182             WVPASSEQ(i.find_offset(obj2_bin), 0xffffffffff)
 183             WVPASSEQ(i.find_offset(obj3_bin), 0xff)
 184
 185
 186 @wvtest
 187 def test_check_repo_or_die():
 188     with no_lingering_errors():
 189         with test_tempdir('bup-tgit-') as tmpdir:
 190             os.environ['BUP_DIR'] = bupdir = tmpdir + "/bup"
 191             orig_cwd = os.getcwd()
 192             try:
 193                 os.chdir(tmpdir)
 194                 git.init_repo(bupdir)
 195                 git.check_repo_or_die()
 196                 # if we reach this point the call above passed
 197                 WVPASS('check_repo_or_die')
 198
 199                 os.rename(bupdir + '/objects/pack',
 200                           bupdir + '/objects/pack.tmp')
 201                 open(bupdir + '/objects/pack', 'w').close()
 202                 try:
 203                     git.check_repo_or_die()
 204                 except SystemExit as e:
 205                     WVPASSEQ(e.code, 14)
 206                 else:
 207                     WVFAIL()
 208                 os.unlink(bupdir + '/objects/pack')
 209                 os.rename(bupdir + '/objects/pack.tmp',
 210                           bupdir + '/objects/pack')
 211
 212                 try:
 213                     git.check_repo_or_die('nonexistantbup.tmp')
 214                 except SystemExit as e:
 215                     WVPASSEQ(e.code, 15)
 216                 else:
 217                     WVFAIL()
 218             finally:
 219                 os.chdir(orig_cwd)
 220
 221
 222 @wvtest
 223 def test_commit_parsing():
 224
 225     def restore_env_var(name, val):
 226         if val is None:
 227             del os.environ[name]
 228         else:
 229             os.environ[name] = val
 230
 231     def showval(commit, val):
 232         return readpipe(['git', 'show', '-s',
 233                          '--pretty=format:%s' % val, commit]).strip()
 234
 235     with no_lingering_errors():
 236         with test_tempdir('bup-tgit-') as tmpdir:
 237             orig_cwd = os.getcwd()
 238             workdir = tmpdir + "/work"
 239             repodir = workdir + '/.git'
 240             orig_author_name = os.environ.get('GIT_AUTHOR_NAME')
 241             orig_author_email = os.environ.get('GIT_AUTHOR_EMAIL')
 242             orig_committer_name = os.environ.get('GIT_COMMITTER_NAME')
 243             orig_committer_email = os.environ.get('GIT_COMMITTER_EMAIL')
 244             os.environ['GIT_AUTHOR_NAME'] = 'bup test'
 245             os.environ['GIT_COMMITTER_NAME'] = os.environ['GIT_AUTHOR_NAME']
 246             os.environ['GIT_AUTHOR_EMAIL'] = 'bup@a425bc70a02811e49bdf73ee56450e6f'
 247             os.environ['GIT_COMMITTER_EMAIL'] = os.environ['GIT_AUTHOR_EMAIL']
 248             try:
 249                 readpipe(['git', 'init', workdir])
 250                 os.environ['GIT_DIR'] = os.environ['BUP_DIR'] = repodir
 251                 git.check_repo_or_die(repodir)
 252                 os.chdir(workdir)
 253                 with open('foo', 'w') as f:
 254                     print >> f, 'bar'
 255                 readpipe(['git', 'add', '.'])
 256                 readpipe(['git', 'commit', '-am', 'Do something',
 257                           '--author', 'Someone <someone@somewhere>',
 258                           '--date', 'Sat Oct 3 19:48:49 2009 -0400'])
 259                 commit = readpipe(['git', 'show-ref', '-s', 'master']).strip()
 260                 parents = showval(commit, '%P')
 261                 tree = showval(commit, '%T')
 262                 cname = showval(commit, '%cn')
 263                 cmail = showval(commit, '%ce')
 264                 cdate = showval(commit, '%ct')
 265                 coffs = showval(commit, '%ci')
 266                 coffs = coffs[-5:]
 267                 coff = (int(coffs[-4:-2]) * 60 * 60) + (int(coffs[-2:]) * 60)
 268                 if coffs[-5] == '-':
 269                     coff = - coff
 270                 commit_items = git.get_commit_items(commit, git.cp())
 271                 WVPASSEQ(commit_items.parents, [])
 272                 WVPASSEQ(commit_items.tree, tree)
 273                 WVPASSEQ(commit_items.author_name, 'Someone')
 274                 WVPASSEQ(commit_items.author_mail, 'someone@somewhere')
 275                 WVPASSEQ(commit_items.author_sec, 1254613729)
 276                 WVPASSEQ(commit_items.author_offset, -(4 * 60 * 60))
 277                 WVPASSEQ(commit_items.committer_name, cname)
 278                 WVPASSEQ(commit_items.committer_mail, cmail)
 279                 WVPASSEQ(commit_items.committer_sec, int(cdate))
 280                 WVPASSEQ(commit_items.committer_offset, coff)
 281                 WVPASSEQ(commit_items.message, 'Do something\n')
 282                 with open('bar', 'w') as f:
 283                     print >> f, 'baz'
 284                 readpipe(['git', 'add', '.'])
 285                 readpipe(['git', 'commit', '-am', 'Do something else'])
 286                 child = readpipe(['git', 'show-ref', '-s', 'master']).strip()
 287                 parents = showval(child, '%P')
 288                 commit_items = git.get_commit_items(child, git.cp())
 289                 WVPASSEQ(commit_items.parents, [commit])
 290             finally:
 291                 os.chdir(orig_cwd)
 292                 restore_env_var('GIT_AUTHOR_NAME', orig_author_name)
 293                 restore_env_var('GIT_AUTHOR_EMAIL', orig_author_email)
 294                 restore_env_var('GIT_COMMITTER_NAME', orig_committer_name)
 295                 restore_env_var('GIT_COMMITTER_EMAIL', orig_committer_email)
 296
 297
 298 @wvtest
 299 def test_new_commit():
 300     with no_lingering_errors():
 301         with test_tempdir('bup-tgit-') as tmpdir:
 302             os.environ['BUP_MAIN_EXE'] = bup_exe
 303             os.environ['BUP_DIR'] = bupdir = tmpdir + "/bup"
 304             git.init_repo(bupdir)
 305             git.verbose = 1
 306
 307             w = git.PackWriter()
 308             tree = os.urandom(20)
 309             parent = os.urandom(20)
 310             author_name = 'Author'
 311             author_mail = 'author@somewhere'
 312             adate_sec = 1439657836
 313             cdate_sec = adate_sec + 1
 314             committer_name = 'Committer'
 315             committer_mail = 'committer@somewhere'
 316             adate_tz_sec = cdate_tz_sec = None
 317             commit = w.new_commit(tree, parent,
 318                                   '%s <%s>' % (author_name, author_mail),
 319                                   adate_sec, adate_tz_sec,
 320                                   '%s <%s>' % (committer_name, committer_mail),
 321                                   cdate_sec, cdate_tz_sec,
 322                                   'There is a small mailbox here')
 323             adate_tz_sec = -60 * 60
 324             cdate_tz_sec = 120 * 60
 325             commit_off = w.new_commit(tree, parent,
 326                                       '%s <%s>' % (author_name, author_mail),
 327                                       adate_sec, adate_tz_sec,
 328                                       '%s <%s>' % (committer_name, committer_mail),
 329                                       cdate_sec, cdate_tz_sec,
 330                                       'There is a small mailbox here')
 331             w.close()
 332
 333             commit_items = git.get_commit_items(commit.encode('hex'), git.cp())
 334             local_author_offset = localtime(adate_sec).tm_gmtoff
 335             local_committer_offset = localtime(cdate_sec).tm_gmtoff
 336             WVPASSEQ(tree, commit_items.tree.decode('hex'))
 337             WVPASSEQ(1, len(commit_items.parents))
 338             WVPASSEQ(parent, commit_items.parents[0].decode('hex'))
 339             WVPASSEQ(author_name, commit_items.author_name)
 340             WVPASSEQ(author_mail, commit_items.author_mail)
 341             WVPASSEQ(adate_sec, commit_items.author_sec)
 342             WVPASSEQ(local_author_offset, commit_items.author_offset)
 343             WVPASSEQ(committer_name, commit_items.committer_name)
 344             WVPASSEQ(committer_mail, commit_items.committer_mail)
 345             WVPASSEQ(cdate_sec, commit_items.committer_sec)
 346             WVPASSEQ(local_committer_offset, commit_items.committer_offset)
 347
 348             commit_items = git.get_commit_items(commit_off.encode('hex'), git.cp())
 349             WVPASSEQ(tree, commit_items.tree.decode('hex'))
 350             WVPASSEQ(1, len(commit_items.parents))
 351             WVPASSEQ(parent, commit_items.parents[0].decode('hex'))
 352             WVPASSEQ(author_name, commit_items.author_name)
 353             WVPASSEQ(author_mail, commit_items.author_mail)
 354             WVPASSEQ(adate_sec, commit_items.author_sec)
 355             WVPASSEQ(adate_tz_sec, commit_items.author_offset)
 356             WVPASSEQ(committer_name, commit_items.committer_name)
 357             WVPASSEQ(committer_mail, commit_items.committer_mail)
 358             WVPASSEQ(cdate_sec, commit_items.committer_sec)
 359             WVPASSEQ(cdate_tz_sec, commit_items.committer_offset)
 360
 361
 362 @wvtest
 363 def test_list_refs():
 364     with no_lingering_errors():
 365         with test_tempdir('bup-tgit-') as tmpdir:
 366             os.environ['BUP_MAIN_EXE'] = bup_exe
 367             os.environ['BUP_DIR'] = bupdir = tmpdir + "/bup"
 368             src = tmpdir + '/src'
 369             mkdirp(src)
 370             with open(src + '/1', 'w+') as f:
 371                 print f, 'something'
 372             with open(src + '/2', 'w+') as f:
 373                 print f, 'something else'
 374             git.init_repo(bupdir)
 375             emptyset = frozenset()
 376             WVPASSEQ(frozenset(git.list_refs()), emptyset)
 377             WVPASSEQ(frozenset(git.list_refs(limit_to_tags=True)), emptyset)
 378             WVPASSEQ(frozenset(git.list_refs(limit_to_heads=True)), emptyset)
 379             exc(bup_exe, 'index', src)
 380             exc(bup_exe, 'save', '-n', 'src', '--strip', src)
 381             src_hash = exo('git', '--git-dir', bupdir,
 382                            'rev-parse', 'src').strip().split('\n')
 383             assert(len(src_hash) == 1)
 384             src_hash = src_hash[0].decode('hex')
 385             tree_hash = exo('git', '--git-dir', bupdir,
 386                            'rev-parse', 'src:').strip().split('\n')[0].decode('hex')
 387             blob_hash = exo('git', '--git-dir', bupdir,
 388                            'rev-parse', 'src:1').strip().split('\n')[0].decode('hex')
 389             WVPASSEQ(frozenset(git.list_refs()),
 390                      frozenset([('refs/heads/src', src_hash)]))
 391             WVPASSEQ(frozenset(git.list_refs(limit_to_tags=True)), emptyset)
 392             WVPASSEQ(frozenset(git.list_refs(limit_to_heads=True)),
 393                      frozenset([('refs/heads/src', src_hash)]))
 394             exc('git', '--git-dir', bupdir, 'tag', 'commit-tag', 'src')
 395             WVPASSEQ(frozenset(git.list_refs()),
 396                      frozenset([('refs/heads/src', src_hash),
 397                                 ('refs/tags/commit-tag', src_hash)]))
 398             WVPASSEQ(frozenset(git.list_refs(limit_to_tags=True)),
 399                      frozenset([('refs/tags/commit-tag', src_hash)]))
 400             WVPASSEQ(frozenset(git.list_refs(limit_to_heads=True)),
 401                      frozenset([('refs/heads/src', src_hash)]))
 402             exc('git', '--git-dir', bupdir, 'tag', 'tree-tag', 'src:')
 403             exc('git', '--git-dir', bupdir, 'tag', 'blob-tag', 'src:1')
 404             os.unlink(bupdir + '/refs/heads/src')
 405             expected_tags = frozenset([('refs/tags/commit-tag', src_hash),
 406                                        ('refs/tags/tree-tag', tree_hash),
 407                                        ('refs/tags/blob-tag', blob_hash)])
 408             WVPASSEQ(frozenset(git.list_refs()), expected_tags)
 409             WVPASSEQ(frozenset(git.list_refs(limit_to_heads=True)), frozenset([]))
 410             WVPASSEQ(frozenset(git.list_refs(limit_to_tags=True)), expected_tags)
 411
 412
 413 @wvtest
 414 def test__git_date_str():
 415     with no_lingering_errors():
 416         WVPASSEQ('0 +0000', git._git_date_str(0, 0))
 417         WVPASSEQ('0 -0130', git._git_date_str(0, -90 * 60))
 418         WVPASSEQ('0 +0130', git._git_date_str(0, 90 * 60))
 419
 420
 421 @wvtest
 422 def test_cat_pipe():
 423     with no_lingering_errors():
 424         with test_tempdir('bup-tgit-') as tmpdir:
 425             os.environ['BUP_MAIN_EXE'] = bup_exe
 426             os.environ['BUP_DIR'] = bupdir = tmpdir + "/bup"
 427             src = tmpdir + '/src'
 428             mkdirp(src)
 429             with open(src + '/1', 'w+') as f:
 430                 print f, 'something'
 431             with open(src + '/2', 'w+') as f:
 432                 print f, 'something else'
 433             git.init_repo(bupdir)
 434             exc(bup_exe, 'index', src)
 435             oidx = exo(bup_exe, 'save', '-cn', 'src', '--strip', src).strip()
 436             typ = exo('git', '--git-dir', bupdir,
 437                       'cat-file', '-t', 'src').strip()
 438             size = int(exo('git', '--git-dir', bupdir,
 439                                'cat-file', '-s', 'src'))
 440             it = git.cp().get('src')
 441             get_info = it.next()
 442             for buf in it.next():
 443                 pass
 444             WVPASSEQ((oidx, typ, size), get_info)