1 files changed, 91 insertions, 0 deletions
diff --git a/sjhbuild/sysdeps.py b/sjhbuild/sysdeps.py
new file mode 100644
index 0000000..b398cff
--- /dev/null
+++ b/sjhbuild/sysdeps.py
@@ -0,0 +1,91 @@
+import os
+import subprocess
+
+from xml.dom import minidom
+
+scripts_dir = os.path.dirname(__file__)
+base_dir = os.path.dirname(scripts_dir)
+
+def get_distribution():
+    if 'SJH_DISTRIBUTION' in os.environ:
+        return os.environ['SJH_DISTRIBUTION'].split('-')
+
+    # Fedora
+    if os.path.exists('/etc/fedora-release'):
+        name = 'fedora'
+
+        f = open('/etc/fedora-release')
+        full_name = f.read()
+        f.close()
+
+        if 'Rawhide' in full_name:
+            version = 'rawhide'
+        else:
+            version = full_name.split(' ')[2]
+
+        return name, version
+
+    # Debian and Ubuntu
+    try:
+        out, err = subprocess.Popen(['lsb_release', '-is'],
+                                    stdout=subprocess.PIPE).communicate()
+        name = out.strip().lower()
+
+        out, err = subprocess.Popen(['lsb_release', '-rs'],
+                                    stdout=subprocess.PIPE).communicate()
+        version = out.strip()
+
+        if name == 'debian' and version == 'testing':
+            version = 'unstable'
+
+        return name, version
+    except OSError:
+        pass
+
+    return None, None
+
+def check_package(package):
+    name, version = get_distribution()
+    if name == 'fedora':
+        ret = subprocess.call(['rpm', '--quiet', '-q', package])
+        return ret == 0
+    elif name in ['ubuntu', 'debian']:
+        cmd = ["dpkg-query", "-f='${status}'", "-W", package]
+        out, err = subprocess.Popen(cmd, stdout=subprocess.PIPE).communicate()
+        return out.find('install ok installed') != -1
+
+    return None
+
+def parse_dependencies():
+    name, version = get_distribution()
+    if name is None or version is None:
+        return None
+
+    filename = os.path.join(base_dir, 'config', 'sysdeps',
+                            '%s-%s.xml' % (name, version))
+
+    if not os.path.exists(filename):
+        return None
+
+    return minidom.parse(filename)
+
+def get_packages():
+    document = parse_dependencies()
+    if document is None:
+        return []
+
+    packages = []
+    root = document.childNodes[0]
+
+    for node in root.childNodes:
+        if node.nodeType == node.ELEMENT_NODE:
+            if node.nodeName == 'package':
+                name = node.getAttribute('name')
+                if node.hasAttribute('source'):
+                    source = node.getAttribute('source')
+                else:
+                    source = None
+
+                packages.append((name, source))
+
+    return packages