summaryrefslogtreecommitdiffstats
path: root/bitbake/lib/bb/fetch/git.py
blob: 21259a23b0a2803bbbf6c105783a1a06537c9d1e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
# ex:ts=4:sw=4:sts=4:et
# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
"""
BitBake 'Fetch' git implementation

"""

#Copyright (C) 2005 Richard Purdie
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

import os, re
import bb
from   bb    import data
from   bb.fetch import Fetch
from   bb.fetch import FetchError
from   bb.fetch import runfetchcmd

def prunedir(topdir):
    # Delete everything reachable from the directory named in 'topdir'.
    # CAUTION:  This is dangerous!
    for root, dirs, files in os.walk(topdir, topdown=False):
        for name in files:
            os.remove(os.path.join(root, name))
        for name in dirs:
            os.rmdir(os.path.join(root, name))

class Git(Fetch):
    """Class to fetch a module or modules from git repositories"""
    def supports(self, url, ud, d):
        """
        Check to see if a given url can be fetched with git.
        """
        return ud.type in ['git']

    def localpath(self, url, ud, d):

        ud.proto = "rsync"
        if 'protocol' in ud.parm:
            ud.proto = ud.parm['protocol']

        tag = Fetch.srcrev_internal_helper(ud, d)
        if tag is True:
            ud.tag = self.latest_revision(url, ud, d)	
        elif tag:
            ud.tag = tag

        if not ud.tag:
            ud.tag = self.latest_revision(url, ud, d)	

        if ud.tag == "master":
            ud.tag = self.latest_revision(url, ud, d)

        ud.localfile = data.expand('git_%s%s_%s.tar.gz' % (ud.host, ud.path.replace('/', '.'), ud.tag), d)

        return os.path.join(data.getVar("DL_DIR", d, True), ud.localfile)

    def go(self, loc, ud, d):
        """Fetch url"""

        if Fetch.try_mirror(d, ud.localfile):
            bb.msg.debug(1, bb.msg.domain.Fetcher, "%s already exists (or was stashed). Skipping git checkout." % ud.localpath)
            return

        gitsrcname = '%s%s' % (ud.host, ud.path.replace('/', '.'))

        repofilename = 'git_%s.tar.gz' % (gitsrcname)
        repofile = os.path.join(data.getVar("DL_DIR", d, 1), repofilename)
        repodir = os.path.join(data.expand('${GITDIR}', d), gitsrcname)

        coname = '%s' % (ud.tag)
        codir = os.path.join(repodir, coname)

        if not os.path.exists(repodir):
            if Fetch.try_mirror(d, repofilename):    
                bb.mkdirhier(repodir)
                os.chdir(repodir)
                runfetchcmd("tar -xzf %s" % (repofile), d)
            else:
                runfetchcmd("git clone -n %s://%s%s %s" % (ud.proto, ud.host, ud.path, repodir), d)

        os.chdir(repodir)
        # Remove all but the .git directory
        runfetchcmd("rm * -Rf", d)
        runfetchcmd("git fetch %s://%s%s" % (ud.proto, ud.host, ud.path), d)
        runfetchcmd("git pull --tags %s://%s%s" % (ud.proto, ud.host, ud.path), d)
        runfetchcmd("git prune-packed", d)
        runfetchcmd("git pack-redundant --all | xargs -r rm", d)

        os.chdir(repodir)
        mirror_tarballs = data.getVar("BB_GENERATE_MIRROR_TARBALLS", d, True)
        if mirror_tarballs != "0": 
            bb.msg.note(1, bb.msg.domain.Fetcher, "Creating tarball of git repository")
            runfetchcmd("tar -czf %s %s" % (repofile, os.path.join(".", ".git", "*") ), d)

        if os.path.exists(codir):
            prunedir(codir)

        bb.mkdirhier(codir)
        os.chdir(repodir)
        runfetchcmd("git read-tree %s" % (ud.tag), d)
        runfetchcmd("git checkout-index -q -f --prefix=%s -a" % (os.path.join(codir, "git", "")), d)

        os.chdir(codir)
        bb.msg.note(1, bb.msg.domain.Fetcher, "Creating tarball of git checkout")
        runfetchcmd("tar -czf %s %s" % (ud.localpath, os.path.join(".", "*") ), d)

        os.chdir(repodir)
        prunedir(codir)

    def suppports_srcrev(self):
        return True

    def _revision_key(self, url, ud, d):
        """
        Return a unique key for the url
        """
        return "git:" + ud.host + ud.path.replace('/', '.')

    def _latest_revision(self, url, ud, d):

        output = runfetchcmd("git ls-remote %s://%s%s" % (ud.proto, ud.host, ud.path), d, True)
        return output.split()[0]

    def _build_revision(self, url, ud, d):
        return ud.tag