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 opt_fetch 1; # refetch tracking branch if used?
16 field reset_ok 0; # did the user agree to reset?
18 constructor dialog {} {
22 wm title $top "[appname] ([reponame]): Create Branch"
24 wm geometry $top "+[winfo rootx .]+[winfo rooty .]"
27 label $w.header -text {Create New Branch} -font font_uibold
28 pack $w.header -side top -fill x
31 button $w.buttons.create -text Create \
34 pack $w.buttons.create -side right
35 button $w.buttons.cancel -text {Cancel} \
36 -command [list destroy $w]
37 pack $w.buttons.cancel -side right -padx 5
38 pack $w.buttons -side bottom -fill x -pady 10 -padx 10
40 labelframe $w.desc -text {Branch Name}
41 radiobutton $w.desc.name_r \
46 set w_name $w.desc.name_t
53 -validatecommand [cb _validate %d %S]
54 grid $w.desc.name_r $w_name -sticky we -padx {0 5}
56 radiobutton $w.desc.match_r \
58 -text {Match Tracking Branch Name} \
61 grid $w.desc.match_r -sticky we -padx {0 5} -columnspan 2
63 grid columnconfigure $w.desc 1 -weight 1
64 pack $w.desc -anchor nw -fill x -pady 5 -padx 5
66 set w_rev [::choose_rev::new $w.rev {Starting Revision}]
67 pack $w.rev -anchor nw -fill both -expand 1 -pady 5 -padx 5
69 labelframe $w.options -text {Options}
71 frame $w.options.merge
72 label $w.options.merge.l -text {Update Existing Branch:}
73 pack $w.options.merge.l -side left
74 radiobutton $w.options.merge.no \
78 pack $w.options.merge.no -side left
79 radiobutton $w.options.merge.ff \
80 -text {Fast Forward Only} \
83 pack $w.options.merge.ff -side left
84 radiobutton $w.options.merge.reset \
88 pack $w.options.merge.reset -side left
89 pack $w.options.merge -anchor nw
91 checkbutton $w.options.fetch \
92 -text {Fetch Tracking Branch} \
94 pack $w.options.fetch -anchor nw
96 checkbutton $w.options.checkout \
97 -text {Checkout After Creation} \
98 -variable @opt_checkout
99 pack $w.options.checkout -anchor nw
100 pack $w.options -anchor nw -fill x -pady 5 -padx 5
102 trace add variable @name_type write [cb _select]
104 set name $repo_config(gui.newbranchtemplate)
105 if {[is_config_true gui.matchtrackingbranch]} {
109 bind $w <Visibility> [cb _visible]
110 bind $w <Key-Escape> [list destroy $w]
111 bind $w <Key-Return> [cb _create]\;break
116 global repo_config current_branch
119 set spec [$w_rev get_tracking_branch]
120 switch -- $name_type {
129 -title [wm title $w] \
131 -message "Please select a tracking branch."
134 if {![regsub ^refs/heads/ [lindex $spec 2] {} newbranch]} {
138 -title [wm title $w] \
140 -message "Tracking branch [$w get] is not a branch in the remote repository."
147 || $newbranch eq $repo_config(gui.newbranchtemplate)} {
151 -title [wm title $w] \
153 -message "Please supply a branch name."
158 if {$newbranch eq $current_branch} {
162 -title [wm title $w] \
164 -message "'$newbranch' already exists and is the current branch."
169 if {[catch {git check-ref-format "heads/$newbranch"}]} {
173 -title [wm title $w] \
175 -message "'$newbranch' is not an acceptable branch name."
180 if {$spec ne {} && $opt_fetch} {
181 set l_trck [lindex $spec 0]
182 set remote [lindex $spec 1]
183 set r_head [lindex $spec 2]
184 regsub ^refs/heads/ $r_head {} r_head
188 wm title $c "Refreshing Tracking Branch"
189 wm geometry $c "+[winfo rootx $w]+[winfo rooty $w]"
191 set e [::console::embed \
193 "Fetching $r_head from $remote"]
194 pack $c.console -fill both -expand 1
196 [list git fetch $remote +$r_head:$l_trck] \
197 [cb _finish_fetch $newbranch $c $e]
199 bind $c <Visibility> [list grab $c]
200 bind $c <$M1B-Key-w> break
201 bind $c <$M1B-Key-W> break
202 wm protocol $c WM_DELETE_WINDOW [cb _noop]
204 _finish_create $this $newbranch
210 method _finish_fetch {newbranch c e ok} {
211 wm protocol $c WM_DELETE_WINDOW {}
215 _finish_create $this $newbranch
218 button $c.close -text Close -command [list destroy $c]
219 pack $c.close -side bottom -anchor e -padx 10 -pady 10
223 method _finish_create {newbranch} {
224 global null_sha1 all_heads
226 if {[catch {set new [$w_rev commit_or_die]}]} {
230 set ref refs/heads/$newbranch
231 if {[catch {set cur [git rev-parse --verify "$ref^0"]}]} {
232 # Assume it does not exist, and that is what the error was.
234 set reflog_msg "branch: Created from [$w_rev get]"
236 } elseif {$opt_merge eq {no}} {
240 -title [wm title $w] \
242 -message "Branch '$newbranch' already exists."
247 catch {set mrb [git merge-base $new $cur]}
248 switch -- $opt_merge {
251 # The current branch is actually newer.
254 } elseif {$mrb eq $cur} {
255 # The current branch is older.
257 set reflog_msg "merge [$w_rev get]: Fast-forward"
262 -title [wm title $w] \
264 -message "Branch '$newbranch' already exists.\n\nIt cannot fast-forward to [$w_rev get].\nA merge is required."
271 # The current branch is older.
273 set reflog_msg "merge [$w_rev get]: Fast-forward"
275 # The current branch will lose things.
277 if {[_confirm_reset $this $newbranch $cur $new]} {
278 set reflog_msg "reset [$w_rev get]"
288 -title [wm title $w] \
290 -message "Branch '$newbranch' already exists."
299 git update-ref -m $reflog_msg $ref $new $cur
304 -title [wm title $w] \
306 -message "Failed to create '$newbranch'.\n\n$err"
311 if {$cur eq $null_sha1} {
312 lappend all_heads $newbranch
313 set all_heads [lsort -uniq $all_heads]
319 switch_branch $newbranch
323 method _confirm_reset {newbranch cur new} {
325 set gitk [list do_gitk [list $cur ^$new]]
327 set c $w.confirm_reset
329 wm title $c "Confirm Branch Reset"
330 wm geometry $c "+[winfo rootx $w]+[winfo rooty $w]"
332 pack [label $c.msg1 \
335 -text "Resetting '$newbranch' to [$w_rev get] will lose the following commits:" \
345 -xscrollcommand [list $c.list.sbx set] \
346 -yscrollcommand [list $c.list.sby set]
347 scrollbar $c.list.sbx -orient h -command [list $list xview]
348 scrollbar $c.list.sby -orient v -command [list $list yview]
349 pack $c.list.sbx -fill x -side bottom
350 pack $c.list.sby -fill y -side right
351 pack $list -fill both -expand 1
352 pack $c.list -fill both -expand 1 -padx 5 -pady 5
354 pack [label $c.msg2 \
357 -text "Recovering lost commits may not be easy." \
359 pack [label $c.msg3 \
362 -text "Reset '$newbranch'?" \
366 button $c.buttons.visualize \
369 pack $c.buttons.visualize -side left
370 button $c.buttons.reset \
376 pack $c.buttons.reset -side right
377 button $c.buttons.cancel \
380 -command [list destroy $c]
381 pack $c.buttons.cancel -side right -padx 5
382 pack $c.buttons -side bottom -fill x -pady 10 -padx 10
384 set fd [open "| git rev-list --pretty=oneline $cur ^$new" r]
385 while {[gets $fd line] > 0} {
386 set abbr [string range $line 0 7]
387 set subj [string range $line 41 end]
388 $list insert end "$abbr $subj\n"
391 $list configure -state disabled
393 bind $c <Key-v> $gitk
395 bind $c <Visibility> "
397 focus $c.buttons.cancel
399 bind $c <Key-Return> [list destroy $c]
400 bind $c <Key-Escape> [list destroy $c]
405 method _validate {d S} {
407 if {[regexp {[~^:?*\[\0- ]} $S]} {
410 if {[string length $S] > 0} {
417 method _select {args} {
418 if {$name_type eq {match}} {
419 $w_rev pick_tracking_branch
425 if {$name_type eq {user}} {