git-gui: Support LFs embedded in config file values

Using the new --null option added to git-config in git 1.5.3 we
can safely accept LFs that are embedded in configuration options.
This does require a completely different configuration file parser
then the pre 1.5.3 version as we are splitting on very different
values.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

diff --git a/git-gui.sh b/git-gui.sh
index cfed62da440e420bae6088bf280c1834775874c1..a6e2d57a2ff6b25f873fc596f1d47ac5893f0a64 100755 (executable)
--- a/git-gui.sh
+++ b/git-gui.sh
@@ -749,6 +749,26 @@ unset -nocomplain idx fd
 ## config file parsing
 
 git-version proc _parse_config {arr_name args} {
+       >= 1.5.3 {
+               upvar $arr_name arr
+               array unset arr
+               set buf {}
+               catch {
+                       set fd_rc [eval [list git_read config --null --list] $args]
+                       fconfigure $fd_rc -translation binary
+                       set buf [read $fd_rc]
+                       close $fd_rc
+               }
+               foreach line [split $buf "\0"] {
+                       if {[regexp {^([^\n]+)\n(.*)$} $line line name value]} {
+                               if {[is_many_config $name]} {
+                                       lappend arr($name) $value
+                               } else {
+                                       set arr($name) $value
+                               }
+                       }
+               }
+       }
        default {
                upvar $arr_name arr
                array unset arr