git-gui: Include the subject in the status bar after commit

Now that the command line git-commit has made displaying
the subject (first line) of the newly created commit popular
we can easily do the same thing here in git-gui, without the
ugly part of forking off a child process to obtain that first
line.

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

diff --git a/git-gui.sh b/git-gui.sh
index 0ad2815..f6c6d44 100755 (executable)
--- a/git-gui.sh
+++ b/git-gui.sh
@@ -1317,10 +1317,11 @@ A rescan will be automatically started now.
        }
        set i [string first "\n" $msg]
        if {$i >= 0} {
-               append reflogm {: } [string range $msg 0 [expr {$i - 1}]]
+               set subject [string range $msg 0 [expr {$i - 1}]]
        } else {
-               append reflogm {: } $msg
+               set subject $msg
        }
+       append reflogm {: } $subject
        set cmd [list git update-ref -m $reflogm HEAD $cmt_id $curHEAD]
        if {[catch {eval exec $cmd} err]} {
                error_popup "update-ref failed:\n\n$err"
@@ -1414,7 +1415,7 @@ A rescan will be automatically started now.
        unlock_index
        reshow_diff
        set ui_status_value \
-               "Changes committed as [string range $cmt_id 0 7]."
+               "Created commit [string range $cmt_id 0 7]: $subject"
 }
 
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