Do not replace '-' with '.' in the version string
[stgit] / stgit / version.py
1 from stgit.exception import StgException
2 from stgit import run, utils
3 import os, os.path, re, sys
4
5 class VersionUnavailable(StgException):
6 pass
7
8 def git_describe_version():
9 path = sys.path[0]
10 try:
11 v = run.Run('git', 'describe', '--tags', '--abbrev=4'
12 ).cwd(path).output_one_line()
13 except run.RunException, e:
14 raise VersionUnavailable(str(e))
15 if not re.match(r'^v[0-9]', v):
16 raise VersionUnavailable('%s: bad version' % v)
17 try:
18 dirty = run.Run('git', 'diff-index', '--name-only', 'HEAD'
19 ).cwd(path).raw_output()
20 except run.RunException, e:
21 raise VersionUnavailable(str(e))
22 if dirty:
23 v += '-dirty'
24 return utils.strip_prefix('v', v)
25
26 def builtin_version():
27 try:
28 import builtin_version as bv
29 except ImportError:
30 raise VersionUnavailable()
31 else:
32 return bv.version
33
34 def _builtin_version_file(ext = 'py'):
35 return os.path.join(sys.path[0], 'stgit', 'builtin_version.%s' % ext)
36
37 def write_builtin_version():
38 try:
39 v = git_describe_version()
40 except VersionUnavailable:
41 return
42 f = file(_builtin_version_file(), 'w')
43 f.write('# This file was generated automatically. Do not edit by hand.\n'
44 'version = %r\n' % v)
45
46 def delete_builtin_version():
47 for ext in ['py', 'pyc', 'pyo']:
48 fn = _builtin_version_file(ext)
49 if os.path.exists(fn):
50 os.remove(fn)
51
52 def get_version():
53 for v in [builtin_version, git_describe_version]:
54 try:
55 return v()
56 except VersionUnavailable:
57 pass
58 return 'unknown-version'
59
60 version = get_version()
61
62 # minimum version requirements
63 git_min_ver = '1.5.2'
64 python_min_ver = '2.4'