1 # git-gui branch create support
2 # Copyright (C) 2006, 2007 Shawn Pearce
6 field w ; # widget path
7 field w_rev ; # mega-widget to pick the initial revision
8 field w_name ; # new branch name widget
10 field name {}; # name of the branch the user has chosen
11 field name_type user; # type of branch name to use
13 field opt_merge ff; # type of merge to apply to existing branch
14 field opt_checkout 1; # automatically checkout the new branch?
15 field reset_ok 0; # did the user agree to reset?
17 constructor dialog {} {
21 wm title $top "[appname] ([reponame]): Create Branch"
23 wm geometry $top "+[winfo rootx .]+[winfo rooty .]"
26 label $w.header -text {Create New Branch} -font font_uibold
27 pack $w.header -side top -fill x
30 button $w.buttons.create -text Create \
33 pack $w.buttons.create -side right
34 button $w.buttons.cancel -text {Cancel} \
35 -command [list destroy $w]
36 pack $w.buttons.cancel -side right -padx 5
37 pack $w.buttons -side bottom -fill x -pady 10 -padx 10
39 labelframe $w.desc -text {Branch Name}
40 radiobutton $w.desc.name_r \
45 set w_name $w.desc.name_t
52 -validatecommand [cb _validate %d %S]
53 grid $w.desc.name_r $w_name -sticky we -padx {0 5}
55 radiobutton $w.desc.match_r \
57 -text {Match Tracking Branch Name} \
60 grid $w.desc.match_r -sticky we -padx {0 5} -columnspan 2
62 grid columnconfigure $w.desc 1 -weight 1
63 pack $w.desc -anchor nw -fill x -pady 5 -padx 5
65 set w_rev [::choose_rev::new $w.rev {Starting Revision}]
66 pack $w.rev -anchor nw -fill x -pady 5 -padx 5
68 labelframe $w.options -text {Options}
70 frame $w.options.merge
71 label $w.options.merge.l -text {Update Existing Branch:}
72 pack $w.options.merge.l -side left
73 radiobutton $w.options.merge.no \
77 pack $w.options.merge.no -side left
78 radiobutton $w.options.merge.ff \
79 -text {Fast Forward Only} \
82 pack $w.options.merge.ff -side left
83 radiobutton $w.options.merge.reset \
87 pack $w.options.merge.reset -side left
88 pack $w.options.merge -anchor nw
90 checkbutton $w.options.checkout \
91 -text {Checkout After Creation} \
92 -variable @opt_checkout
93 pack $w.options.checkout -anchor nw
94 pack $w.options -anchor nw -fill x -pady 5 -padx 5
96 set name $repo_config(gui.newbranchtemplate)
98 bind $w <Visibility> "
103 bind $w <Key-Escape> [list destroy $w]
104 bind $w <Key-Return> [cb _create]\;break
109 global null_sha1 repo_config
110 global all_heads current_branch
112 switch -- $name_type {
117 set spec [$w_rev get_tracking_branch]
122 -title [wm title $w] \
124 -message "Please select a tracking branch."
127 if {![regsub ^refs/heads/ [lindex $spec 2] {} newbranch]} {
131 -title [wm title $w] \
133 -message "Tracking branch [$w get] is not a branch in the remote repository."
140 || $newbranch eq $repo_config(gui.newbranchtemplate)} {
144 -title [wm title $w] \
146 -message "Please supply a branch name."
151 if {$newbranch eq $current_branch} {
155 -title [wm title $w] \
157 -message "'$newbranch' already exists and is the current branch."
162 if {[catch {git check-ref-format "heads/$newbranch"}]} {
166 -title [wm title $w] \
168 -message "'$newbranch' is not an acceptable branch name."
173 if {[catch {set new [$w_rev get_commit]}]} {
177 -title [wm title $w] \
179 -message "Invalid revision: [$w_rev get]"
183 set ref refs/heads/$newbranch
184 if {[catch {set cur [git rev-parse --verify "$ref^0"]}]} {
185 # Assume it does not exist, and that is what the error was.
187 set reflog_msg "branch: Created from [$w_rev get]"
189 } elseif {$opt_merge eq {no}} {
193 -title [wm title $w] \
195 -message "Branch '$newbranch' already exists."
200 catch {set mrb [git merge-base $new $cur]}
201 switch -- $opt_merge {
204 # The current branch is actually newer.
207 } elseif {$mrb eq $cur} {
208 # The current branch is older.
210 set reflog_msg "merge [$w_rev get]: Fast-forward"
215 -title [wm title $w] \
217 -message "Branch '$newbranch' already exists.\n\nIt cannot fast-forward to [$w_rev get].\nA merge is required."
224 # The current branch is older.
226 set reflog_msg "merge [$w_rev get]: Fast-forward"
228 # The current branch will lose things.
230 if {[_confirm_reset $this $newbranch $cur $new]} {
231 set reflog_msg "reset [$w_rev get]"
241 -title [wm title $w] \
243 -message "Branch '$newbranch' already exists."
252 git update-ref -m $reflog_msg $ref $new $cur
257 -title [wm title $w] \
259 -message "Failed to create '$newbranch'.\n\n$err"
264 if {$cur eq $null_sha1} {
265 lappend all_heads $newbranch
266 set all_heads [lsort -uniq $all_heads]
272 switch_branch $newbranch
276 method _confirm_reset {newbranch cur new} {
278 set gitk [list do_gitk [list $cur ^$new]]
280 set c $w.confirm_reset
282 wm title $c "Confirm Branch Reset"
283 wm geometry $c "+[winfo rootx $w]+[winfo rooty $w]"
285 pack [label $c.msg1 \
288 -text "Resetting '$newbranch' to [$w_rev get] will lose the following commits:" \
298 -xscrollcommand [list $c.list.sbx set] \
299 -yscrollcommand [list $c.list.sby set]
300 scrollbar $c.list.sbx -orient h -command [list $list xview]
301 scrollbar $c.list.sby -orient v -command [list $list yview]
302 pack $c.list.sbx -fill x -side bottom
303 pack $c.list.sby -fill y -side right
304 pack $list -fill both -expand 1
305 pack $c.list -fill both -expand 1 -padx 5 -pady 5
307 pack [label $c.msg2 \
310 -text "Recovering lost commits may not be easy." \
312 pack [label $c.msg3 \
315 -text "Reset '$newbranch'?" \
319 button $c.buttons.visualize \
322 pack $c.buttons.visualize -side left
323 button $c.buttons.reset \
329 pack $c.buttons.reset -side right
330 button $c.buttons.cancel \
333 -command [list destroy $c]
334 pack $c.buttons.cancel -side right -padx 5
335 pack $c.buttons -side bottom -fill x -pady 10 -padx 10
337 set fd [open "| git rev-list --pretty=oneline $cur ^$new" r]
338 while {[gets $fd line] > 0} {
339 set abbr [string range $line 0 7]
340 set subj [string range $line 41 end]
341 $list insert end "$abbr $subj\n"
344 $list configure -state disabled
346 bind $c <Key-v> $gitk
348 bind $c <Visibility> "
350 focus $c.buttons.cancel
352 bind $c <Key-Return> [list destroy $c]
353 bind $c <Key-Escape> [list destroy $c]
358 method _validate {d S} {
360 if {[regexp {[~^:?*\[\0- ]} $S]} {
363 if {[string length $S] > 0} {