Merge lp:~dooferlad/linaro-license-protection/add_do_if_old into lp:~linaro-automation/linaro-license-protection/trunk

[James Tunnicliffe]

Adding script that runs a command on a directory if it is older than the age specified.

[Deepti B. Kalakeri (deeptik)]

This looks good to me.
I had one suggestion, why don't we provide the option to specify the time trigger_age_string in days as well. It would be little inconvenient to convert the days into hrs if we intend to find information which are slightly very old.

otherwise +1

Thanks!!!
Deepti.

=== added file 'scripts/do_if_old.py'
--- scripts/do_if_old.py	1970-01-01 00:00:00 +0000
+++ scripts/do_if_old.py	2012-01-11 17:43:27 +0000
@@ -0,0 +1,62 @@
+#!/usr/bin/env python
+import argparse
+import os
+import re
+import time
+import sys
+
+def search_and_run(root_dir, command, trigger_age_string):
+    """Run command on old directories
+
+    Search under root_dir. If a directory is found that is older than the
+    age specified by trigger_age_string, run command on it.
+
+    Does not recurse down into subdirectories.
+    """
+    trigger_age_seconds = None
+
+    age_search = re.search("^(\d+)(\w+)$", trigger_age_string)
+
+    if age_search:
+        if age_search.group(2) == "m":
+            trigger_age_seconds = int(age_search.group(1)) * 60
+        elif age_search.group(2) == "h":
+            trigger_age_seconds = int(age_search.group(1)) * 60 * 60
+        elif age_search.group(2) == "s":
+            trigger_age_seconds = int(age_search.group(1))
+
+    if not trigger_age_seconds:
+        print >> sys.stderr, "Time string format unrecognised."
+        print >> sys.stderr, "Format should be <number><unit>, for example:"
+        print >> sys.stderr, "  2h  = two hours."
+        print >> sys.stderr, "  30m = 30 minutes."
+        print >> sys.stderr, "  45s = 45 seconds."
+        sys.exit(1)
+
+    root = os.path.abspath(root_dir)
+
+    for thing in os.listdir(root):
+        if os.path.isdir(os.path.join(root, thing)):
+            folder = os.path.join(root, thing)
+            path = os.path.join(root, folder)
+            mod_time = os.path.getmtime(path)
+
+            if (time.time() - mod_time) > trigger_age_seconds:
+                os.system(command + " " + path)
+
+if __name__ == '__main__':
+    """Run command on directories that are older than trigger-age."""
+
+    parser = argparse.ArgumentParser(description="Run command on directories"
+                "that are older than trigger-age.")
+
+    parser.add_argument('--root-dir', type=str, nargs=1, required=True,
+                        help="Root directory to search")
+    parser.add_argument('--trigger-age', type=str, nargs=1, required=True,
+                help="Age of directory (or files in it) to trigger command")
+    parser.add_argument('--command', type=str, nargs=1, required=True,
+                        help="Command to run on directory")
+
+    args = parser.parse_args()
+
+    search_and_run(args.root_dir[0], args.command[0], args.trigger_age[0])