xref: /OK3568_Linux_fs/yocto/poky/meta/classes/patch.bbclass (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1# Copyright (C) 2006  OpenedHand LTD
2
3# Point to an empty file so any user's custom settings don't break things
4QUILTRCFILE ?= "${STAGING_ETCDIR_NATIVE}/quiltrc"
5
6PATCHDEPENDENCY = "${PATCHTOOL}-native:do_populate_sysroot"
7
8# There is a bug in patch 2.7.3 and earlier where index lines
9# in patches can change file modes when they shouldn't:
10# http://git.savannah.gnu.org/cgit/patch.git/patch/?id=82b800c9552a088a241457948219d25ce0a407a4
11# This leaks into debug sources in particular. Add the dependency
12# to target recipes to avoid this problem until we can rely on 2.7.4 or later.
13PATCHDEPENDENCY:append:class-target = " patch-replacement-native:do_populate_sysroot"
14
15PATCH_GIT_USER_NAME ?= "OpenEmbedded"
16PATCH_GIT_USER_EMAIL ?= "oe.patch@oe"
17
18inherit terminal
19
20python () {
21    if d.getVar('PATCHTOOL') == 'git' and d.getVar('PATCH_COMMIT_FUNCTIONS') == '1':
22        extratasks = bb.build.tasksbetween('do_unpack', 'do_patch', d)
23        try:
24            extratasks.remove('do_unpack')
25        except ValueError:
26            # For some recipes do_unpack doesn't exist, ignore it
27            pass
28
29        d.appendVarFlag('do_patch', 'prefuncs', ' patch_task_patch_prefunc')
30        for task in extratasks:
31            d.appendVarFlag(task, 'postfuncs', ' patch_task_postfunc')
32}
33
34python patch_task_patch_prefunc() {
35    # Prefunc for do_patch
36    srcsubdir = d.getVar('S')
37
38    workdir = os.path.abspath(d.getVar('WORKDIR'))
39    testsrcdir = os.path.abspath(srcsubdir)
40    if (testsrcdir + os.sep).startswith(workdir + os.sep):
41        # Double-check that either workdir or S or some directory in-between is a git repository
42        found = False
43        while testsrcdir != workdir:
44            if os.path.exists(os.path.join(testsrcdir, '.git')):
45                found = True
46                break
47            if testsrcdir == workdir:
48                break
49            testsrcdir = os.path.dirname(testsrcdir)
50        if not found:
51            bb.fatal('PATCHTOOL = "git" set for source tree that is not a git repository. Refusing to continue as that may result in commits being made in your metadata repository.')
52
53    patchdir = os.path.join(srcsubdir, 'patches')
54    if os.path.exists(patchdir):
55        if os.listdir(patchdir):
56            d.setVar('PATCH_HAS_PATCHES_DIR', '1')
57        else:
58            os.rmdir(patchdir)
59}
60
61python patch_task_postfunc() {
62    # Prefunc for task functions between do_unpack and do_patch
63    import oe.patch
64    import shutil
65    func = d.getVar('BB_RUNTASK')
66    srcsubdir = d.getVar('S')
67
68    if os.path.exists(srcsubdir):
69        if func == 'do_patch':
70            haspatches = (d.getVar('PATCH_HAS_PATCHES_DIR') == '1')
71            patchdir = os.path.join(srcsubdir, 'patches')
72            if os.path.exists(patchdir):
73                shutil.rmtree(patchdir)
74                if haspatches:
75                    stdout, _ = bb.process.run('git status --porcelain patches', cwd=srcsubdir)
76                    if stdout:
77                        bb.process.run('git checkout patches', cwd=srcsubdir)
78        stdout, _ = bb.process.run('git status --porcelain .', cwd=srcsubdir)
79        if stdout:
80            useroptions = []
81            oe.patch.GitApplyTree.gitCommandUserOptions(useroptions, d=d)
82            bb.process.run('git add .; git %s commit -a -m "Committing changes from %s\n\n%s"' % (' '.join(useroptions), func, oe.patch.GitApplyTree.ignore_commit_prefix + ' - from %s' % func), cwd=srcsubdir)
83}
84
85def src_patches(d, all=False, expand=True):
86    import oe.patch
87    return oe.patch.src_patches(d, all, expand)
88
89def should_apply(parm, d):
90    """Determine if we should apply the given patch"""
91    import oe.patch
92    return oe.patch.should_apply(parm, d)
93
94should_apply[vardepsexclude] = "DATE SRCDATE"
95
96python patch_do_patch() {
97    import oe.patch
98
99    patchsetmap = {
100        "patch": oe.patch.PatchTree,
101        "quilt": oe.patch.QuiltTree,
102        "git": oe.patch.GitApplyTree,
103    }
104
105    cls = patchsetmap[d.getVar('PATCHTOOL') or 'quilt']
106
107    resolvermap = {
108        "noop": oe.patch.NOOPResolver,
109        "user": oe.patch.UserResolver,
110    }
111
112    rcls = resolvermap[d.getVar('PATCHRESOLVE') or 'user']
113
114    classes = {}
115
116    s = d.getVar('S')
117
118    os.putenv('PATH', d.getVar('PATH'))
119
120    # We must use one TMPDIR per process so that the "patch" processes
121    # don't generate the same temp file name.
122
123    import tempfile
124    process_tmpdir = tempfile.mkdtemp()
125    os.environ['TMPDIR'] = process_tmpdir
126
127    for patch in src_patches(d):
128        _, _, local, _, _, parm = bb.fetch.decodeurl(patch)
129
130        if "patchdir" in parm:
131            patchdir = parm["patchdir"]
132            if not os.path.isabs(patchdir):
133                patchdir = os.path.join(s, patchdir)
134            if not os.path.isdir(patchdir):
135                bb.fatal("Target directory '%s' not found, patchdir '%s' is incorrect in patch file '%s'" %
136                    (patchdir, parm["patchdir"], parm['patchname']))
137        else:
138            patchdir = s
139
140        if not patchdir in classes:
141            patchset = cls(patchdir, d)
142            resolver = rcls(patchset, oe_terminal)
143            classes[patchdir] = (patchset, resolver)
144            patchset.Clean()
145        else:
146            patchset, resolver = classes[patchdir]
147
148        bb.note("Applying patch '%s' (%s)" % (parm['patchname'], oe.path.format_display(local, d)))
149        try:
150            patchset.Import({"file":local, "strippath": parm['striplevel']}, True)
151        except Exception as exc:
152            bb.utils.remove(process_tmpdir, True)
153            bb.fatal("Importing patch '%s' with striplevel '%s'\n%s" % (parm['patchname'], parm['striplevel'], repr(exc).replace("\\n", "\n")))
154        try:
155            resolver.Resolve()
156        except bb.BBHandledException as e:
157            bb.utils.remove(process_tmpdir, True)
158            bb.fatal("Applying patch '%s' on target directory '%s'\n%s" % (parm['patchname'], patchdir, repr(e).replace("\\n", "\n")))
159
160    bb.utils.remove(process_tmpdir, True)
161    del os.environ['TMPDIR']
162}
163patch_do_patch[vardepsexclude] = "PATCHRESOLVE"
164
165addtask patch after do_unpack
166do_patch[dirs] = "${WORKDIR}"
167do_patch[depends] = "${PATCHDEPENDENCY}"
168
169EXPORT_FUNCTIONS do_patch
170