Mercurial > public > mercurial-scm > hg
comparison mercurial/cmdutil.py @ 3090:eeaf9bcdfa25
Move revision parsing into cmdutil.
| author | Brendan Cully <brendan@kublai.com> |
|---|---|
| date | Thu, 14 Sep 2006 11:19:35 -0700 |
| parents | bc3fe3b5b785 |
| children | a33a9af1ec03 |
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| 3089:e7fc04dc6349 | 3090:eeaf9bcdfa25 |
|---|---|
| 8 from demandload import demandload | 8 from demandload import demandload |
| 9 from node import * | 9 from node import * |
| 10 from i18n import gettext as _ | 10 from i18n import gettext as _ |
| 11 demandload(globals(), 'mdiff util') | 11 demandload(globals(), 'mdiff util') |
| 12 demandload(globals(), 'os sys') | 12 demandload(globals(), 'os sys') |
| 13 | |
| 14 revrangesep = ':' | |
| 15 | |
| 16 def revfix(repo, val, defval): | |
| 17 '''turn user-level id of changeset into rev number. | |
| 18 user-level id can be tag, changeset, rev number, or negative rev | |
| 19 number relative to number of revs (-1 is tip, etc).''' | |
| 20 if not val: | |
| 21 return defval | |
| 22 try: | |
| 23 num = int(val) | |
| 24 if str(num) != val: | |
| 25 raise ValueError | |
| 26 if num < 0: | |
| 27 num += repo.changelog.count() | |
| 28 if num < 0: | |
| 29 num = 0 | |
| 30 elif num >= repo.changelog.count(): | |
| 31 raise ValueError | |
| 32 except ValueError: | |
| 33 try: | |
| 34 num = repo.changelog.rev(repo.lookup(val)) | |
| 35 except KeyError: | |
| 36 raise util.Abort(_('invalid revision identifier %s') % val) | |
| 37 return num | |
| 38 | |
| 39 def revpair(ui, repo, revs): | |
| 40 '''return pair of nodes, given list of revisions. second item can | |
| 41 be None, meaning use working dir.''' | |
| 42 if not revs: | |
| 43 return repo.dirstate.parents()[0], None | |
| 44 end = None | |
| 45 if len(revs) == 1: | |
| 46 start = revs[0] | |
| 47 if revrangesep in start: | |
| 48 start, end = start.split(revrangesep, 1) | |
| 49 start = revfix(repo, start, 0) | |
| 50 end = revfix(repo, end, repo.changelog.count() - 1) | |
| 51 else: | |
| 52 start = revfix(repo, start, None) | |
| 53 elif len(revs) == 2: | |
| 54 if revrangesep in revs[0] or revrangesep in revs[1]: | |
| 55 raise util.Abort(_('too many revisions specified')) | |
| 56 start = revfix(repo, revs[0], None) | |
| 57 end = revfix(repo, revs[1], None) | |
| 58 else: | |
| 59 raise util.Abort(_('too many revisions specified')) | |
| 60 if end is not None: end = repo.lookup(str(end)) | |
| 61 return repo.lookup(str(start)), end | |
| 62 | |
| 63 def revrange(ui, repo, revs): | |
| 64 """Yield revision as strings from a list of revision specifications.""" | |
| 65 seen = {} | |
| 66 for spec in revs: | |
| 67 if revrangesep in spec: | |
| 68 start, end = spec.split(revrangesep, 1) | |
| 69 start = revfix(repo, start, 0) | |
| 70 end = revfix(repo, end, repo.changelog.count() - 1) | |
| 71 step = start > end and -1 or 1 | |
| 72 for rev in xrange(start, end+step, step): | |
| 73 if rev in seen: | |
| 74 continue | |
| 75 seen[rev] = 1 | |
| 76 yield str(rev) | |
| 77 else: | |
| 78 rev = revfix(repo, spec, None) | |
| 79 if rev in seen: | |
| 80 continue | |
| 81 seen[rev] = 1 | |
| 82 yield str(rev) | |
| 13 | 83 |
| 14 def make_filename(repo, pat, node, | 84 def make_filename(repo, pat, node, |
| 15 total=None, seqno=None, revwidth=None, pathname=None): | 85 total=None, seqno=None, revwidth=None, pathname=None): |
| 16 node_expander = { | 86 node_expander = { |
| 17 'H': lambda: hex(node), | 87 'H': lambda: hex(node), |