1 files changed, 128 insertions, 0 deletions
diff --git a/git-gui/lib/branch_rename.tcl b/git-gui/lib/branch_rename.tcl
new file mode 100644
index 0000000000..1cadc31d20
--- /dev/null
+++ b/git-gui/lib/branch_rename.tcl
@@ -0,0 +1,128 @@
+# git-gui branch rename support
+# Copyright (C) 2007 Shawn Pearce
+
+class branch_rename {
+
+field w
+field oldname
+field newname
+
+constructor dialog {} {
+	global current_branch
+
+	make_toplevel top w
+	wm title $top "[appname] ([reponame]): Rename Branch"
+	if {$top ne {.}} {
+		wm geometry $top "+[winfo rootx .]+[winfo rooty .]"
+	}
+
+	set oldname $current_branch
+	set newname [get_config gui.newbranchtemplate]
+
+	label $w.header -text {Rename Branch} -font font_uibold
+	pack $w.header -side top -fill x
+
+	frame $w.buttons
+	button $w.buttons.rename -text Rename \
+		-default active \
+		-command [cb _rename]
+	pack $w.buttons.rename -side right
+	button $w.buttons.cancel -text {Cancel} \
+		-command [list destroy $w]
+	pack $w.buttons.cancel -side right -padx 5
+	pack $w.buttons -side bottom -fill x -pady 10 -padx 10
+
+	frame $w.rename
+	label $w.rename.oldname_l -text {Branch:}
+	eval tk_optionMenu $w.rename.oldname_m @oldname [load_all_heads]
+
+	label $w.rename.newname_l -text {New Name:}
+	entry $w.rename.newname_t \
+		-borderwidth 1 \
+		-relief sunken \
+		-width 40 \
+		-textvariable @newname \
+		-validate key \
+		-validatecommand {
+			if {%d == 1 && [regexp {[~^:?*\[\0- ]} %S]} {return 0}
+			return 1
+		}
+
+	grid $w.rename.oldname_l $w.rename.oldname_m -sticky w  -padx {0 5}
+	grid $w.rename.newname_l $w.rename.newname_t -sticky we -padx {0 5}
+	grid columnconfigure $w.rename 1 -weight 1
+	pack $w.rename -anchor nw -fill x -pady 5 -padx 5
+
+	bind $w <Key-Return> [cb _rename]
+	bind $w <Key-Escape> [list destroy $w]
+	bind $w <Visibility> "
+		grab $w
+		$w.rename.newname_t icursor end
+		focus $w.rename.newname_t
+	"
+	tkwait window $w
+}
+
+method _rename {} {
+	global current_branch
+
+	if {$oldname eq {}} {
+		tk_messageBox \
+			-icon error \
+			-type ok \
+			-title [wm title $w] \
+			-parent $w \
+			-message "Please select a branch to rename."
+		focus $w.rename.oldname_m
+		return
+	}
+	if {$newname eq {}
+		|| $newname eq [get_config gui.newbranchtemplate]} {
+		tk_messageBox \
+			-icon error \
+			-type ok \
+			-title [wm title $w] \
+			-parent $w \
+			-message "Please supply a branch name."
+		focus $w.rename.newname_t
+		return
+	}
+	if {![catch {git show-ref --verify -- "refs/heads/$newname"}]} {
+		tk_messageBox \
+			-icon error \
+			-type ok \
+			-title [wm title $w] \
+			-parent $w \
+			-message "Branch '$newname' already exists."
+		focus $w.rename.newname_t
+		return
+	}
+	if {[catch {git check-ref-format "heads/$newname"}]} {
+		tk_messageBox \
+			-icon error \
+			-type ok \
+			-title [wm title $w] \
+			-parent $w \
+			-message "We do not like '$newname' as a branch name."
+		focus $w.rename.newname_t
+		return
+	}
+
+	if {[catch {git branch -m $oldname $newname} err]} {
+		tk_messageBox \
+			-icon error \
+			-type ok \
+			-title [wm title $w] \
+			-parent $w \
+			-message "Failed to rename '$oldname'.\n\n$err"
+		return
+	}
+
+	if {$current_branch eq $oldname} {
+		set current_branch $newname
+	}
+
+	destroy $w
+}
+
+}