File tkdiff-4.1.4-git.patch of Package tkdiff

--- tkdiff.orig	2007-11-15 00:52:48.000000000 -0600
+++ tkdiff	2011-07-21 10:14:03.222156059 -0500
@@ -738,6 +738,7 @@ proc get-file-rev {f index {r ""}} {
         set acopt ""
         set cvsopt ""
         set svnopt ""
+        set gitopt ""
         set rcsopt ""
         set sccsopt ""
         set bkopt ""
@@ -749,6 +750,7 @@ proc get-file-rev {f index {r ""}} {
         set acopt "-v \"$r\""
         set cvsopt "-r $r"
         set svnopt "-r $r"
+        set gitopt "$r:"
         set rcsopt "$r"
         set sccsopt "-r$r"
         set bkopt "-r$r"
@@ -765,6 +767,10 @@ proc get-file-rev {f index {r ""}} {
     regsub -all {\$} $f {\$} f
     set dirname [file dirname $f]
     set tailname [file tail $f]
+	set cmdext ""
+	if {$::tcl_platform(platform) == "windows"} {
+		set cmdext ".exe"
+	}
 
     debug-info " $f"
     # For CVS, if it isn't checked out there is neither a CVS nor RCS
@@ -795,6 +801,19 @@ proc get-file-rev {f index {r ""}} {
             debug-info "  Setting lbl $finfo(lbl,$index)"
             die-unless "exec $cmd cat $svnopt \"$f\"" $finfo(pth,$index)
         }
+    } elseif {"[exec git$cmdext rev-parse --is-inside-work-tree]" == "true"} {
+        set cmd "git$cmdext"
+		set prefix [exec git rev-parse --show-prefix]
+        if {"$r" == "" || "$rev" == "rBASE"} {
+            set finfo(lbl,$index) "$f (SVN BASE)"
+            debug-info "  Setting lbl $finfo(lbl,$index)"
+            die-unless "exec $cmd show \":$prefix$f\"" \
+              $finfo(pth,$index)
+        } else {
+            set finfo(lbl,$index) "$f (SVN $rev)"
+            debug-info "  Setting lbl $finfo(lbl,$index)"
+            die-unless "exec $cmd show \"$gitopt$prefix$f\"" $finfo(pth,$index)
+        }
     } elseif {[regexp {://} $f]} {
         # Subversion command can have the form
         # svn diff OLD-URL[@OLDREV] NEW-URL[@NEWREV]
@@ -6105,8 +6124,8 @@ proc do-usage {mode} {
     Plain file with conflict markers:
      	tkdiff -conflict FILE
 
-    Source control (AccuRev, BitKeeper, CVS, Subversion, Perforce, PVCS,
-      RCS, SCCS, ClearCase)
+    Source control (AccuRev, BitKeeper, CVS, Subversion, Git, Perforce,
+      PVCS, RCS, SCCS, ClearCase)
      	tkdiff FILE
 	tkdiff -rREV FILE
 	tkdiff -rREV1 -rREV2 FILE
@@ -6125,7 +6144,9 @@ $g(name) detects and supports RCS, CVS,
       directory with the same name. It detects and supports PVCS by looking \
       for a vcs.cfg file. It detects and supports AccuRev, Perforce and \
       ClearCase by looking for the environment variables named ACCUREV_BIN, \
-      P4CLIENT, and CLEARCASE_ROOT respectively.
+      P4CLIENT, and CLEARCASE_ROOT respectively. It detects Git by using \
+	  "git rev-parse --is-inside-work-tree" and will only work if the current \
+	  directory is in a git work tree.
 
 In the first form, tkdiff will present a dialog to allow you to choose the \
       files to diff interactively. At present this dialog only supports a \
@@ -6139,17 +6160,26 @@ In the second form, at least one of the
 
 In the remaining forms, <cmp>REV</cmp> (or <cmp>REV1</cmp> and \
       <cmp>REV2</cmp>) must be a valid revision number for <cmp>FILE</cmp>. \
-      Where AccuRev, RCS, CVS, Subversion, SCCS, PVCS or Perforce is implied \
+      Where AccuRev, RCS, CVS, Subversion, Git, SCCS, PVCS or Perforce is implied \
       but no revision number is specified, <cmp>FILE</cmp> is compared with \
       the the revision most recently checked in.
 
+Git <cmp>REV</cmp> (see man git-rev-parse):
+  -r <cmp>FILE</cmp>                   [compare with <cmp>HEAD</cmp>]
+  -r <cmp>HEAD</cmp> <cmp>FILE</cmp>        [compare with <cmp>HEAD</cmp>]
+  -r <cmp>HEAD^</cmp> <cmp>FILE</cmp>      [compare with parent of <cmp>HEAD</cmp>]
+  -r <cmp>HEAD~5</cmp> <cmp>FILE</cmp>    [compare with 5th parent of <cmp>HEAD</cmp>]
+  -r <cmp>HEAD~20</cmp> -r <cmp>HEAD^</cmp> <cmp>FILE</cmp>   [compare 20th parent and parent of <cmp>HEAD</cmp>]
+  -r 29329e <cmp>FILE</cmp>    [compare with commit 29329e (full/partial SHA1)]
+  -r v1.2.3 <cmp>FILE</cmp>      [compare with tag (UNTESTED)]
+
 To merge a file with conflict markers generated by "<cmp>merge</cmp>", \
       "<cmp>cvs</cmp>", or "<cmp>vmrg</cmp>", use \
       "<cmp>tkdiff -conflict FILE</cmp>". The file is split into two temporary \
       files which you can merge as usual (see below).
 
 For "<cmp>tkdiff FILE</cmp>" The CVS version has priority, followed by the \
-      Subversion version, followed by the SCCS version -- i.e. if a CVS \
+      Subversion version, followed by the Git version, followed by the SCCS version -- i.e. if a CVS \
       directory is present, CVS; if not and a Subversion directory is \
       present, Subversion; if not and an SCCS directory is present, SCCS is \
       assumed; otherwise, if a CVS.CFG file is found, PVCS is assumed; \