xref: /openbmc/openbmc/poky/meta/lib/oe/buildcfg.py (revision 03514f19) 
1
2import os
3import subprocess
4import bb.process
5
6def detect_revision(d):
7    path = get_scmbasepath(d)
8    return get_metadata_git_revision(path)
9
10def detect_branch(d):
11    path = get_scmbasepath(d)
12    return get_metadata_git_branch(path)
13
14def get_scmbasepath(d):
15    return os.path.join(d.getVar('COREBASE'), 'meta')
16
17def get_metadata_git_branch(path):
18    try:
19        rev, _ = bb.process.run('git rev-parse --abbrev-ref HEAD', cwd=path)
20    except bb.process.ExecutionError:
21        rev = '<unknown>'
22    return rev.strip()
23
24def get_metadata_git_revision(path):
25    try:
26        rev, _ = bb.process.run('git rev-parse HEAD', cwd=path)
27    except bb.process.ExecutionError:
28        rev = '<unknown>'
29    return rev.strip()
30
31def get_metadata_git_toplevel(path):
32    try:
33        toplevel, _ = bb.process.run('git rev-parse --show-toplevel', cwd=path)
34    except bb.process.ExecutionError:
35        return ""
36    return toplevel.strip()
37
38def get_metadata_git_remotes(path):
39    try:
40        remotes_list, _ = bb.process.run('git remote', cwd=path)
41        remotes = remotes_list.split()
42    except bb.process.ExecutionError:
43        remotes = []
44    return remotes
45
46def get_metadata_git_remote_url(path, remote):
47    try:
48        uri, _ = bb.process.run('git remote get-url {remote}'.format(remote=remote), cwd=path)
49    except bb.process.ExecutionError:
50        return ""
51    return uri.strip()
52
53def get_metadata_git_describe(path):
54    try:
55        describe, _ = bb.process.run('git describe --tags', cwd=path)
56    except bb.process.ExecutionError:
57        return ""
58    return describe.strip()
59
60def is_layer_modified(path):
61    try:
62        subprocess.check_output("""cd %s; export PSEUDO_UNLOAD=1; set -e;
63                                git diff --quiet --no-ext-diff
64                                git diff --quiet --no-ext-diff --cached""" % path,
65                                shell=True,
66                                stderr=subprocess.STDOUT)
67        return ""
68    except subprocess.CalledProcessError as ex:
69        # Silently treat errors as "modified", without checking for the
70        # (expected) return code 1 in a modified git repo. For example, we get
71        # output and a 129 return code when a layer isn't a git repo at all.
72        return " -- modified"
73
74def get_layer_revisions(d):
75    layers = (d.getVar("BBLAYERS") or "").split()
76    revisions = []
77    for i in layers:
78        revisions.append((i, os.path.basename(i), get_metadata_git_branch(i).strip(), get_metadata_git_revision(i), is_layer_modified(i)))
79    return revisions
80