[PATCH v2] gitk: add menuitem for file checkout from this or parent commit

[Heiko Voigt <hvoigt@xxxxxxxxxx>]

This is useful if a user wants to checkout a file from a certain
commit. This is equivalent to

  git checkout $commit $file

Signed-off-by: Heiko Voigt <hvoigt@xxxxxxxxxx>
---

On Wed, Sep 29, 2010 at 03:48:03PM +0000, Ævar Arnfjörð Bjarmason wrote:
> But as Michele points out you probably shouldn't update these, some
> projects do, but it probably makes more sense to leave these updates
> up to translators.

Here is an updated version of that patch without the po changes.

 gitk |   24 ++++++++++++++++++------
 1 files changed, 18 insertions(+), 6 deletions(-)

diff --git a/gitk b/gitk
index 45e3380..c582bb5 100755
--- a/gitk
+++ b/gitk
@@ -2497,6 +2497,8 @@ proc makewindow {} {
 	{mc "Highlight this only" command {flist_hl 1}}
 	{mc "External diff" command {external_diff}}
 	{mc "Blame parent commit" command {external_blame 1}}
+	{mc "Checkout from this commit" command {external_checkout}}
+	{mc "Checkout from parent commit" command {external_checkout 1}}
     }
     $flist_menu configure -tearoff 0
 
@@ -3533,6 +3535,20 @@ proc make_relative {f} {
 }
 
 proc external_blame {parent_idx {line {}}} {
+
+    set cmdline [list git gui blame]
+    if {$line ne {} && $line > 1} {
+	lappend cmdline "--line=$line"
+    }
+    run_command_on_selected_file $cmdline $parent_idx
+}
+
+proc external_checkout {{parent_idx 0}} {
+    set cmdline [list git checkout]
+    run_command_on_selected_file $cmdline $parent_idx
+}
+
+proc run_command_on_selected_file {cmdline parent_idx} {
     global flist_menu_file gitdir
     global nullid nullid2
     global parentlist selectedline currentid
@@ -3548,17 +3564,13 @@ proc external_blame {parent_idx {line {}}} {
 	return
     }
 
-    set cmdline [list git gui blame]
-    if {$line ne {} && $line > 1} {
-	lappend cmdline "--line=$line"
-    }
     set f [file join [file dirname $gitdir] $flist_menu_file]
-    # Unfortunately it seems git gui blame doesn't like
+    # Unfortunately some commands do not like
     # being given an absolute path...
     set f [make_relative $f]
     lappend cmdline $base_commit $f
     if {[catch {eval exec $cmdline &} err]} {
-	error_popup "[mc "git gui blame: command failed:"] $err"
+	error_popup "[mc "$cmdline: command failed:"] $err"
     }
 }
 
-- 
1.7.2.2.177.geec0d

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