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-rw-r--r--bitbake-dev/lib/bb/fetch/git.py142
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diff --git a/bitbake-dev/lib/bb/fetch/git.py b/bitbake-dev/lib/bb/fetch/git.py
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1# ex:ts=4:sw=4:sts=4:et
2# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
3"""
4BitBake 'Fetch' git implementation
5
6"""
7
8#Copyright (C) 2005 Richard Purdie
9#
10# This program is free software; you can redistribute it and/or modify
11# it under the terms of the GNU General Public License version 2 as
12# published by the Free Software Foundation.
13#
14# This program is distributed in the hope that it will be useful,
15# but WITHOUT ANY WARRANTY; without even the implied warranty of
16# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17# GNU General Public License for more details.
18#
19# You should have received a copy of the GNU General Public License along
20# with this program; if not, write to the Free Software Foundation, Inc.,
21# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
22
23import os, re
24import bb
25from bb import data
26from bb.fetch import Fetch
27from bb.fetch import FetchError
28from bb.fetch import runfetchcmd
29
30def prunedir(topdir):
31 # Delete everything reachable from the directory named in 'topdir'.
32 # CAUTION: This is dangerous!
33 for root, dirs, files in os.walk(topdir, topdown=False):
34 for name in files:
35 os.remove(os.path.join(root, name))
36 for name in dirs:
37 os.rmdir(os.path.join(root, name))
38
39class Git(Fetch):
40 """Class to fetch a module or modules from git repositories"""
41 def supports(self, url, ud, d):
42 """
43 Check to see if a given url can be fetched with git.
44 """
45 return ud.type in ['git']
46
47 def localpath(self, url, ud, d):
48
49 ud.proto = "rsync"
50 if 'protocol' in ud.parm:
51 ud.proto = ud.parm['protocol']
52
53 ud.branch = ud.parm.get("branch", "master")
54
55 tag = Fetch.srcrev_internal_helper(ud, d)
56 if tag is True:
57 ud.tag = self.latest_revision(url, ud, d)
58 elif tag:
59 ud.tag = tag
60
61 if not ud.tag:
62 ud.tag = self.latest_revision(url, ud, d)
63
64 if ud.tag == "master":
65 ud.tag = self.latest_revision(url, ud, d)
66
67 ud.localfile = data.expand('git_%s%s_%s.tar.gz' % (ud.host, ud.path.replace('/', '.'), ud.tag), d)
68
69 return os.path.join(data.getVar("DL_DIR", d, True), ud.localfile)
70
71 def go(self, loc, ud, d):
72 """Fetch url"""
73
74 if Fetch.try_mirror(d, ud.localfile):
75 bb.msg.debug(1, bb.msg.domain.Fetcher, "%s already exists (or was stashed). Skipping git checkout." % ud.localpath)
76 return
77
78 gitsrcname = '%s%s' % (ud.host, ud.path.replace('/', '.'))
79
80 repofilename = 'git_%s.tar.gz' % (gitsrcname)
81 repofile = os.path.join(data.getVar("DL_DIR", d, 1), repofilename)
82 repodir = os.path.join(data.expand('${GITDIR}', d), gitsrcname)
83
84 coname = '%s' % (ud.tag)
85 codir = os.path.join(repodir, coname)
86
87 if not os.path.exists(repodir):
88 if Fetch.try_mirror(d, repofilename):
89 bb.mkdirhier(repodir)
90 os.chdir(repodir)
91 runfetchcmd("tar -xzf %s" % (repofile), d)
92 else:
93 runfetchcmd("git clone -n %s://%s%s %s" % (ud.proto, ud.host, ud.path, repodir), d)
94
95 os.chdir(repodir)
96 # Remove all but the .git directory
97 runfetchcmd("rm * -Rf", d)
98 runfetchcmd("git fetch %s://%s%s %s" % (ud.proto, ud.host, ud.path, ud.branch), d)
99 runfetchcmd("git fetch --tags %s://%s%s" % (ud.proto, ud.host, ud.path), d)
100 runfetchcmd("git prune-packed", d)
101 runfetchcmd("git pack-redundant --all | xargs -r rm", d)
102
103 os.chdir(repodir)
104 mirror_tarballs = data.getVar("BB_GENERATE_MIRROR_TARBALLS", d, True)
105 if mirror_tarballs != "0":
106 bb.msg.note(1, bb.msg.domain.Fetcher, "Creating tarball of git repository")
107 runfetchcmd("tar -czf %s %s" % (repofile, os.path.join(".", ".git", "*") ), d)
108
109 if os.path.exists(codir):
110 prunedir(codir)
111
112 bb.mkdirhier(codir)
113 os.chdir(repodir)
114 runfetchcmd("git read-tree %s" % (ud.tag), d)
115 runfetchcmd("git checkout-index -q -f --prefix=%s -a" % (os.path.join(codir, "git", "")), d)
116
117 os.chdir(codir)
118 bb.msg.note(1, bb.msg.domain.Fetcher, "Creating tarball of git checkout")
119 runfetchcmd("tar -czf %s %s" % (ud.localpath, os.path.join(".", "*") ), d)
120
121 os.chdir(repodir)
122 prunedir(codir)
123
124 def suppports_srcrev(self):
125 return True
126
127 def _revision_key(self, url, ud, d):
128 """
129 Return a unique key for the url
130 """
131 return "git:" + ud.host + ud.path.replace('/', '.')
132
133 def _latest_revision(self, url, ud, d):
134 """
135 Compute the HEAD revision for the url
136 """
137 output = runfetchcmd("git ls-remote %s://%s%s %s" % (ud.proto, ud.host, ud.path, ud.branch), d, True)
138 return output.split()[0]
139
140 def _build_revision(self, url, ud, d):
141 return ud.tag
142