[PATCH 6/6] git-p4: Resolve RCS keywords in binary

[Joel Holdsworth <jholdsworth@nvidia.com>]

Signed-off-by: Joel Holdsworth <jholdsworth@nvidia.com>
---
 git-p4.py | 31 ++++++++++---------------------
 1 file changed, 10 insertions(+), 21 deletions(-)

diff --git a/git-p4.py b/git-p4.py
index c362a5fa38..87e6685eb6 100755
--- a/git-p4.py
+++ b/git-p4.py
@@ -46,6 +46,9 @@
 
 p4_access_checked = False
 
+re_ko_keywords = re.compile(rb'\$(Id|Header)(:[^$\n]+)?\$')
+re_k_keywords = re.compile(rb'\$(Id|Header|Author|Date|DateTime|Change|File|Revision)(:[^$\n]+)?\$')
+
 def p4_build_cmd(cmd):
     """Build a suitable p4 command line.
 
@@ -532,20 +535,12 @@ def p4_type(f):
 #
 def p4_keywords_regexp_for_type(base, type_mods):
     if base in ("text", "unicode", "binary"):
-        kwords = None
         if "ko" in type_mods:
-            kwords = 'Id|Header'
+            return re_ko_keywords
         elif "k" in type_mods:
-            kwords = 'Id|Header|Author|Date|DateTime|Change|File|Revision'
+            return re_k_keywords
         else:
             return None
-        pattern = r"""
-            \$              # Starts with a dollar, followed by...
-            (%s)            # one of the keywords, followed by...
-            (:[^$\n]+)?     # possibly an old expansion, followed by...
-            \$              # another dollar
-            """ % kwords
-        return pattern
     else:
         return None
 
@@ -2035,11 +2030,10 @@ def applyCommit(self, id):
                 kwfiles = {}
                 for file in editedFiles | filesToDelete:
                     # did this file's delta contain RCS keywords?
-                    pattern = p4_keywords_regexp_for_file(file)
+                    regexp = p4_keywords_regexp_for_file(file)
 
-                    if pattern:
+                    if regexp:
                         # this file is a possibility...look for RCS keywords.
-                        regexp = re.compile(pattern, re.VERBOSE)
                         for line in read_pipe_lines(["git", "diff", "%s^..%s" % (id, id), file]):
                             if regexp.search(line):
                                 if verbose:
@@ -2968,14 +2962,9 @@ def streamOneP4File(self, file, contents):
             print("\nIgnoring apple filetype file %s" % file['depotFile'])
             return
 
-        # Note that we do not try to de-mangle keywords on utf16 files,
-        # even though in theory somebody may want that.
-        pattern = p4_keywords_regexp_for_type(type_base, type_mods)
-        if pattern:
-            regexp = re.compile(pattern, re.VERBOSE)
-            text = ''.join(c.decode() for c in contents)
-            text = regexp.sub(r'$\1$', text)
-            contents = [text.encode()]
+        regexp = p4_keywords_regexp_for_type(type_base, type_mods)
+        if regexp:
+            contents = [regexp.sub(rb'$\1$', c) for c in contents]
 
         if self.largeFileSystem:
             (git_mode, contents) = self.largeFileSystem.processContent(git_mode, relPath, contents)
-- 
2.33.0