fixup! git-gui: fix exception when trying to stage with empty file list

dscho · dscho · commit 8b4e64d60532 · 2017-05-29T17:17:23.000+02:00
diff --git a/git-gui/git-gui.sh b/git-gui/git-gui.sh
@@ -2532,7 +2532,13 @@ proc toggle_or_diff {mode w args} {
 		}
 	}
 
-	set path [lindex $file_lists($w) [expr {$lno - 1}]]
+	if {![info exists file_lists]
+		|| ![info exists file_lists($w)]
+		|| [llength $file_lists($w)] < $lno - 1} {
+		set path {}
+	} else {
+		set path [lindex $file_lists($w) [expr {$lno - 1}]]
+	}
 	if {$path eq {}} {
 		set last_clicked {}
 		return

Original file line number	Diff line number	Diff line change
`@@ -2532,7 +2532,13 @@ proc toggle_or_diff {mode w args} {`
`2532`	`2532`	`}`
`2533`	`2533`	`}`
`2534`	`2534`
`2535`		`- set path [lindex $file_lists($w) [expr {$lno - 1}]]`
	`2535`	`+ if {![info exists file_lists]`
	`2536`	`+ \|\| ![info exists file_lists($w)]`
	`2537`	`+ \|\| [llength $file_lists($w)] < $lno - 1} {`
	`2538`	`+ set path {}`
	`2539`	`+ } else {`
	`2540`	`+ set path [lindex $file_lists($w) [expr {$lno - 1}]]`
	`2541`	`+ }`
`2536`	`2542`	`if {$path eq {}} {`
`2537`	`2543`	`set last_clicked {}`
`2538`	`2544`	`return`