1 files changed, 117 insertions, 0 deletions
diff --git a/poky/meta/lib/oe/lsb.py b/poky/meta/lib/oe/lsb.py
new file mode 100644
index 000000000..71c0992c5
--- /dev/null
+++ b/poky/meta/lib/oe/lsb.py
@@ -0,0 +1,117 @@
+def get_os_release():
+    """Get all key-value pairs from /etc/os-release as a dict"""
+    from collections import OrderedDict
+
+    data = OrderedDict()
+    if os.path.exists('/etc/os-release'):
+        with open('/etc/os-release') as f:
+            for line in f:
+                try:
+                    key, val = line.rstrip().split('=', 1)
+                except ValueError:
+                    continue
+                data[key.strip()] = val.strip('"')
+    return data
+
+def release_dict_osr():
+    """ Populate a dict with pertinent values from /etc/os-release """
+    data = {}
+    os_release = get_os_release()
+    if 'ID' in os_release:
+        data['DISTRIB_ID'] = os_release['ID']
+    if 'VERSION_ID' in os_release:
+        data['DISTRIB_RELEASE'] = os_release['VERSION_ID']
+
+    return data
+
+def release_dict_lsb():
+    """ Return the output of lsb_release -ir as a dictionary """
+    from subprocess import PIPE
+
+    try:
+        output, err = bb.process.run(['lsb_release', '-ir'], stderr=PIPE)
+    except bb.process.CmdError as exc:
+        return {}
+
+    lsb_map = { 'Distributor ID': 'DISTRIB_ID',
+                'Release': 'DISTRIB_RELEASE'}
+    lsb_keys = lsb_map.keys()
+
+    data = {}
+    for line in output.splitlines():
+        if line.startswith("-e"):
+            line = line[3:]
+        try:
+            key, value = line.split(":\t", 1)
+        except ValueError:
+            continue
+        if key in lsb_keys:
+            data[lsb_map[key]] = value
+
+    if len(data.keys()) != 2:
+        return None
+
+    return data
+
+def release_dict_file():
+    """ Try to gather release information manually when other methods fail """
+    data = {}
+    try:
+        if os.path.exists('/etc/lsb-release'):
+            data = {}
+            with open('/etc/lsb-release') as f:
+                for line in f:
+                    key, value = line.split("=", 1)
+                    data[key] = value.strip()
+        elif os.path.exists('/etc/redhat-release'):
+            data = {}
+            with open('/etc/redhat-release') as f:
+                distro = f.readline().strip()
+            import re
+            match = re.match(r'(.*) release (.*) \((.*)\)', distro)
+            if match:
+                data['DISTRIB_ID'] = match.group(1)
+                data['DISTRIB_RELEASE'] = match.group(2)
+        elif os.path.exists('/etc/SuSE-release'):
+            data = {}
+            data['DISTRIB_ID'] = 'SUSE LINUX'
+            with open('/etc/SuSE-release') as f:
+                for line in f:
+                    if line.startswith('VERSION = '):
+                        data['DISTRIB_RELEASE'] = line[10:].rstrip()
+                        break
+
+    except IOError:
+        return {}
+    return data
+
+def distro_identifier(adjust_hook=None):
+    """Return a distro identifier string based upon lsb_release -ri,
+       with optional adjustment via a hook"""
+
+    import re
+
+    # Try /etc/os-release first, then the output of `lsb_release -ir` and
+    # finally fall back on parsing various release files in order to determine
+    # host distro name and version.
+    distro_data = release_dict_osr()
+    if not distro_data:
+        distro_data = release_dict_lsb()
+    if not distro_data:
+        distro_data = release_dict_file()
+
+    distro_id = distro_data.get('DISTRIB_ID', '')
+    release = distro_data.get('DISTRIB_RELEASE', '')
+
+    if adjust_hook:
+        distro_id, release = adjust_hook(distro_id, release)
+    if not distro_id:
+        return "Unknown"
+    # Filter out any non-alphanumerics
+    distro_id = re.sub(r'\W', '', distro_id)
+
+    if release:
+        id_str = '{0}-{1}'.format(distro_id.lower(), release)
+    else:
+        id_str = distro_id
+    return id_str.replace(' ','-').replace('/','-')