tox: Add tox.ini file

[patchwork] / apps / patchwork / parser.py

diff --git a/apps/patchwork/parser.py b/apps/patchwork/parser.py
index 8ed36ccb59bcf3d392dc98602e8d525838ae0b98..a51a7b609af0c1df36a85f0d9fac4670efd9322e 100644 (file)
--- a/apps/patchwork/parser.py
+++ b/apps/patchwork/parser.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/env python
 #
 # Patchwork - automated patch tracking system
 # Copyright (C) 2008 Jeremy Kerr <jk@ozlabs.org>
@@ -45,6 +45,7 @@ def parse_patch(text):
     # 3: patch header line 2 (+++)
     # 4: patch hunk header line (@@ line)
     # 5: patch hunk content
+    # 6: patch meta header (rename from/rename to)
     #
     # valid transitions:
     #  0 -> 1 (diff, ===, Index:)
@@ -54,6 +55,9 @@ def parse_patch(text):
     #  3 -> 4 (@@ line)
     #  4 -> 5 (patch content)
     #  5 -> 1 (run out of lines from @@-specifed count)
+    #  1 -> 6 (rename from / rename to)
+    #  6 -> 2 (---)
+    #  6 -> 1 (other text)
     #
     # Suspected patch header is stored into buf, and appended to
     # patchbuf if we find a following hunk. Otherwise, append to
@@ -68,7 +72,7 @@ def parse_patch(text):
         line += '\n'
 
         if state == 0:
-            if line.startswith('diff') or line.startswith('===') \
+            if line.startswith('diff ') or line.startswith('===') \
                     or line.startswith('Index: '):
                 state = 1
                 buf += line
@@ -85,6 +89,9 @@ def parse_patch(text):
             if line.startswith('--- '):
                 state = 2
 
+            if line.startswith('rename from ') or line.startswith('rename to '):
+                state = 6
+
         elif state == 2:
             if line.startswith('+++ '):
                 state = 3
@@ -119,6 +126,11 @@ def parse_patch(text):
                 buf = ''
                 state = 2
 
+            elif hunk and line.startswith('\ No newline at end of file'):
+                # If we had a hunk and now we see this, it's part of the patch,
+                # and we're still expecting another @@ line.
+                patchbuf += line
+
             elif hunk:
                 state = 1
                 buf += line
@@ -133,6 +145,9 @@ def parse_patch(text):
                 lc[0] -= 1
             elif line.startswith('+'):
                 lc[1] -= 1
+            elif line.startswith('\ No newline at end of file'):
+                # Special case: Not included as part of the hunk's line count
+                pass
             else:
                 lc[0] -= 1
                 lc[1] -= 1
@@ -145,6 +160,20 @@ def parse_patch(text):
             else:
                 state = 5
 
+        elif state == 6:
+            if line.startswith('rename to ') or line.startswith('rename from '):
+                patchbuf += buf + line
+                buf = ''
+
+            elif line.startswith('--- '):
+                patchbuf += buf + line
+                buf = ''
+                state = 2
+
+            else:
+                buf += line
+                state = 1
+
         else:
             raise Exception("Unknown state %d! (line '%s')" % (state, line))
 
@@ -205,11 +234,34 @@ def hash_patch(str):
 
     return hash
 
-if __name__ == '__main__':
-    import sys
-    (patch, comment) = parse_patch(sys.stdin.read())
-    if patch:
+
+def main(args):
+    from optparse import OptionParser
+
+    parser = OptionParser()
+    parser.add_option('-p', '--patch', action = 'store_true',
+            dest = 'print_patch', help = 'print parsed patch')
+    parser.add_option('-c', '--comment', action = 'store_true',
+            dest = 'print_comment', help = 'print parsed comment')
+    parser.add_option('-#', '--hash', action = 'store_true',
+            dest = 'print_hash', help = 'print patch hash')
+
+    (options, args) = parser.parse_args()
+
+    # decode from (assumed) UTF-8
+    content = sys.stdin.read().decode('utf-8')
+
+    (patch, comment) = parse_patch(content)
+
+    if options.print_hash and patch:
+        print hash_patch(patch).hexdigest()
+
+    if options.print_patch and patch:
         print "Patch: ------\n" + patch
-        print "hash: %s" % hash_patch(patch).hexdigest()
-    if comment:
+
+    if options.print_comment and comment:
         print "Comment: ----\n" + comment
+
+if __name__ == '__main__':
+    import sys
+    sys.exit(main(sys.argv))