1 files changed, 58 insertions, 0 deletions
diff --git a/krebs/5pkgs/simple/Reaktor/scripts/sed-plugin.py b/krebs/5pkgs/simple/Reaktor/scripts/sed-plugin.py
new file mode 100755
index 000000000..4925b25bb
--- /dev/null
+++ b/krebs/5pkgs/simple/Reaktor/scripts/sed-plugin.py
@@ -0,0 +1,58 @@
+#!/usr/bin/env python3
+
+# Usage:
+# _from=krebs state_dir=. python sed-plugin.py 'dick butt'
+# _from=krebs state_dir=. python sed-plugin.py 's/t/l/g'
+# > dick bull
+import shelve
+from os import environ
+from os.path import join
+from sys import argv
+from time import sleep
+import re
+
+# try to open the shelve file until it succeeds
+while True:
+    try:
+        d = shelve.open(
+            join(environ['state_dir'], 'sed-plugin.shelve'),
+            writeback=True
+        )
+        break
+    except:  # noqa: E722
+        sleep(0.2)
+usr = environ['_from']
+
+
+def is_regex(line):
+    myre = re.compile(r'^s/(?:\\/|[^/])+/(?:\\/|[^/])*/[ig]?$')
+    return myre.match(line)
+
+
+line = argv[1]
+
+if is_regex(line):
+    last = d.get(usr, None)
+    if last:
+        from subprocess import Popen, PIPE
+        p = Popen(['sed', line], stdin=PIPE, stdout=PIPE, stderr=PIPE)
+        so, se = p.communicate(bytes("{}\n".format(last), "UTF-8"))
+        if p.returncode:
+            print("something went wrong when trying to process your regex: {}".format(line.strip()))
+        ret = so.decode()
+        if len(ret) > 512:
+            print('message to long, skipped')
+        elif len(ret.split('\n')) > 5:
+            print('to many lines, skipped')
+        else:
+            if last.strip() != ret.strip():
+                print("\x02{}\x02 meant: {}".format(usr, ret.strip()))
+                if ret:
+                    d[usr] = ret
+
+    else:
+        print("no last message")
+else:
+    d[usr] = line
+
+d.close()