lib/bup/t/tgit.py

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