git-gui: Allow specifying an initial line for git gui blame.

diff --git a/git-gui.sh b/git-gui.sh
index b0207ac36a7c905b909e764df9741b2d12432b96..ec08b5a921ed8ebc17714b5f2e96682b68d0d6bd 100755 (executable)
--- a/git-gui.sh
+++ b/git-gui.sh
@@ -2296,10 +2296,15 @@ proc usage {} {
 switch -- $subcommand {
 browser -
 blame {
-       set subcommand_args {rev? path}
+       if {$subcommand eq "blame"} {
+               set subcommand_args {[--line=<num>] rev? path}
+       } else {
+               set subcommand_args {rev? path}
+       }
        if {$argv eq {}} usage
        set head {}
        set path {}
+       set jump_spec {}
        set is_path 0
        foreach a $argv {
                if {$is_path || [file exists $_prefix$a]} {
@@ -2313,6 +2318,9 @@ blame {
                                set path {}
                        }
                        set is_path 1
+               } elseif {[regexp {^--line=(\d+)$} $a a lnum]} {
+                       if {$jump_spec ne {} || $head ne {}} usage
+                       set jump_spec [list $lnum]
                } elseif {$head eq {}} {
                        if {$head ne {}} usage
                        set head $a
@@ -2344,6 +2352,7 @@ blame {
 
        switch -- $subcommand {
        browser {
+               if {$jump_spec ne {}} usage
                if {$head eq {}} {
                        if {$path ne {} && [file isdirectory $path]} {
                                set head $current_branch
@@ -2359,7 +2368,7 @@ blame {
                        puts stderr [mc "fatal: cannot stat path %s: No such file or directory" $path]
                        exit 1
                }
-               blame::new $head $path
+               blame::new $head $path $jump_spec
        }
        }
        return