Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
"""
-import sys, os, re
+import sys, os, os.path, re
from optparse import OptionParser, make_option
from stgit.utils import *
# Utility functions
+class RevParseException(Exception):
+ """Revision spec parse error."""
+ pass
+
+def parse_rev(rev):
+ """Parse a revision specification into its
+ patchname@branchname//patch_id parts. If no branch name has a slash
+ in it, also accept / instead of //."""
+ files, dirs = list_files_and_dirs(os.path.join(basedir.get(),
+ 'refs', 'heads'))
+ if len(dirs) != 0:
+ # We have branch names with / in them.
+ branch_chars = r'[^@]'
+ patch_id_mark = r'//'
+ else:
+ # No / in branch names.
+ branch_chars = r'[^@/]'
+ patch_id_mark = r'(/|//)'
+ patch_re = r'(?P<patch>[^@/]+)'
+ branch_re = r'@(?P<branch>%s+)' % branch_chars
+ patch_id_re = r'%s(?P<patch_id>[a-z.]*)' % patch_id_mark
+
+ # Try //patch_id.
+ m = re.match(r'^%s$' % patch_id_re, rev)
+ if m:
+ return None, None, m.group('patch_id')
+
+ # Try path[@branch]//patch_id.
+ m = re.match(r'^%s(%s)?%s$' % (patch_re, branch_re, patch_id_re), rev)
+ if m:
+ return m.group('patch'), m.group('branch'), m.group('patch_id')
+
+ # Try patch[@branch].
+ m = re.match(r'^%s(%s)?$' % (patch_re, branch_re), rev)
+ if m:
+ return m.group('patch'), m.group('branch'), None
+
+ # No, we can't parse that.
+ raise RevParseException
+
def git_id(rev):
"""Return the GIT id
"""
if not rev:
return None
-
- rev_list = rev.split('/')
- if len(rev_list) == 2:
- patch_id = rev_list[1]
- if not patch_id:
- patch_id = 'top'
- elif len(rev_list) == 1:
- patch_id = 'top'
- else:
- patch_id = None
-
- patch_branch = rev_list[0].split('@')
- if len(patch_branch) == 1:
- series = crt_series
- elif len(patch_branch) == 2:
- series = stack.Series(patch_branch[1])
- else:
- raise CmdException, 'Unknown id: %s' % rev
-
- patch_name = patch_branch[0]
- if not patch_name:
- patch_name = series.get_current()
- if not patch_name:
- raise CmdException, 'No patches applied'
-
- # patch
- if patch_name in series.get_applied() \
- or patch_name in series.get_unapplied():
- if patch_id == 'top':
- return series.get_patch(patch_name).get_top()
- elif patch_id == 'bottom':
- return series.get_patch(patch_name).get_bottom()
- # Note we can return None here.
- elif patch_id == 'top.old':
- return series.get_patch(patch_name).get_old_top()
- elif patch_id == 'bottom.old':
- return series.get_patch(patch_name).get_old_bottom()
-
- # base
- if patch_name == 'base' and len(rev_list) == 1:
- return read_string(series.get_base_file())
-
- # anything else failed
+ try:
+ patch, branch, patch_id = parse_rev(rev)
+ if branch == None:
+ series = crt_series
+ else:
+ series = stack.Series(branch)
+ if patch == None:
+ patch = series.get_current()
+ if not patch:
+ raise CmdException, 'No patches applied'
+ if patch in series.get_applied() or patch in series.get_unapplied():
+ if patch_id in ['top', '', None]:
+ return series.get_patch(patch).get_top()
+ elif patch_id == 'bottom':
+ return series.get_patch(patch).get_bottom()
+ elif patch_id == 'top.old':
+ return series.get_patch(patch).get_old_top()
+ elif patch_id == 'bottom.old':
+ return series.get_patch(patch).get_old_bottom()
+ if patch == 'base' and patch_id == None:
+ return read_string(series.get_base_file())
+ except RevParseException:
+ pass
return git.rev_parse(rev + '^{commit}')
def check_local_changes():