- PLD merge

[packages/rpm-build-tools.git] / sort-pkgs

diff --git a/sort-pkgs b/sort-pkgs
new file mode 100755 (executable)
index 0000000..7b1fa41
--- /dev/null
+++ b/sort-pkgs
@@ -0,0 +1,80 @@
+#!/usr/bin/python3
+
+"""
+This script tries to set ordering in which packages ought to be sent to builders.
+Input: file with names of packages (without the .spec suffix). One package name per line.
+Output: sorted packages on stdout.
+
+If the script goes in a infinite loop, that means there is a cycle or other bug.
+"""
+
+import os
+import re
+import sys
+
+BR_PATTERN = re.compile('BuildRequires:\s+(.*?)(\s|$)')
+PACKAGE_PATTERN_WITH_N = re.compile('%package\s+-n\s+(.*)')
+PACKAGE_PATTERN = re.compile('%package\s+(.*)')
+
+DIR = os.getenv("HOME") + '/rpm/packages'
+
+BUILD_REQUIRES = {}
+PACKAGES = {}
+SPECS = {}
+VISITED = {}
+
+
+def parse_spec(name):
+    global PACKAGES, SPECS, BUILD_REQUIRES, VISITED
+    res = []
+    try:
+        with open(os.path.join(DIR, name, name + '.spec'), 'r') as f:
+            for line in f:
+                br = BR_PATTERN.match(line)
+                if br:
+                    p = br.group(1)
+                    res.append(p)
+                if line.startswith('%package'):
+                    pn = PACKAGE_PATTERN_WITH_N.match(line)
+                    if pn:
+                        package = pn.group(1)
+                        PACKAGES[package] = name
+                    else:
+                        pn = PACKAGE_PATTERN.match(line)
+                        if pn:
+                            ext = pn.group(1)
+                            if ext:
+                                package = name + '-' + ext
+                                PACKAGES[package] = name
+        BUILD_REQUIRES[name] = res[:]
+        PACKAGES[name] = name
+        SPECS[name] = True
+        VISITED[name] = False
+    except:
+        pass
+
+
+def print_spec(spec):
+    global PACKAGES, SPECS, BUILD_REQUIRES, VISITED
+
+    if not VISITED[spec]:
+        VISITED[spec] = True
+        for br in BUILD_REQUIRES[spec]:
+            name = PACKAGES.get(br, '')
+            if name in SPECS:
+                if not VISITED[name]:
+                    print_spec(name)
+        print(spec)
+
+
+if __name__ == "__main__":
+    if len(sys.argv) < 2:
+        print("Usage: %s filename" % sys.argv[0])
+        sys.exit(1)
+    with open(sys.argv[1], 'r') as f:
+        for line in f:
+            spec = line.rstrip()
+            parse_spec(spec)
+
+    for spec in SPECS:
+        print_spec(spec)