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   1 # git-gui branch delete support
   2 # Copyright (C) 2007 Shawn Pearce
   3
   4 class branch_delete {
   5
   6 field w               ; # widget path
   7 field w_heads         ; # listbox of local head names
   8 field w_check         ; # revision picker for merge test
   9 field w_delete        ; # delete button
  10
  11 constructor dialog {} {
  12         global current_branch
  13
  14         make_toplevel top w
  15         wm title $top "[appname] ([reponame]): Delete Branch"
  16         if {$top ne {.}} {
  17                 wm geometry $top "+[winfo rootx .]+[winfo rooty .]"
  18         }
  19
  20         label $w.header -text {Delete Local Branch} -font font_uibold
  21         pack $w.header -side top -fill x
  22
  23         frame $w.buttons
  24         set w_delete $w.buttons.delete
  25         button $w_delete \
  26                 -text Delete \
  27                 -default active \
  28                 -state disabled \
  29                 -command [cb _delete]
  30         pack $w_delete -side right
  31         button $w.buttons.cancel \
  32                 -text {Cancel} \
  33                 -command [list destroy $w]
  34         pack $w.buttons.cancel -side right -padx 5
  35         pack $w.buttons -side bottom -fill x -pady 10 -padx 10
  36
  37         labelframe $w.list -text {Local Branches}
  38         set w_heads $w.list.l
  39         listbox $w_heads \
  40                 -height 10 \
  41                 -width 70 \
  42                 -selectmode extended \
  43                 -exportselection false \
  44                 -yscrollcommand [list $w.list.sby set]
  45         scrollbar $w.list.sby -command [list $w.list.l yview]
  46         pack $w.list.sby -side right -fill y
  47         pack $w.list.l -side left -fill both -expand 1
  48         pack $w.list -fill both -expand 1 -pady 5 -padx 5
  49
  50         set w_check [choose_rev::new \
  51                 $w.check \
  52                 {Delete Only If Merged Into} \
  53                 ]
  54         $w_check none {Always (Do not perform merge test.)}
  55         pack $w.check -anchor nw -fill x -pady 5 -padx 5
  56
  57         foreach h [load_all_heads] {
  58                 if {$h ne $current_branch} {
  59                         $w_heads insert end $h
  60                 }
  61         }
  62
  63         bind $w_heads <<ListboxSelect>> [cb _select]
  64         bind $w <Visibility> "
  65                 grab $w
  66                 focus $w
  67         "
  68         bind $w <Key-Escape> [list destroy $w]
  69         bind $w <Key-Return> [cb _delete]\;break
  70         tkwait window $w
  71 }
  72
  73 method _select {} {
  74         if {[$w_heads curselection] eq {}} {
  75                 $w_delete configure -state disabled
  76         } else {
  77                 $w_delete configure -state normal
  78         }
  79 }
  80
  81 method _delete {} {
  82         if {[catch {set check_cmt [$w_check commit_or_die]}]} {
  83                 return
  84         }
  85
  86         set to_delete [list]
  87         set not_merged [list]
  88         foreach i [$w_heads curselection] {
  89                 set b [$w_heads get $i]
  90                 if {[catch {
  91                         set o [git rev-parse --verify "refs/heads/$b"]
  92                 }]} continue
  93                 if {$check_cmt ne {}} {
  94                         if {[catch {set m [git merge-base $o $check_cmt]}]} continue
  95                         if {$o ne $m} {
  96                                 lappend not_merged $b
  97                                 continue
  98                         }
  99                 }
 100                 lappend to_delete [list $b $o]
 101         }
 102         if {$not_merged ne {}} {
 103                 set msg "The following branches are not completely merged into [$w_check get]:
 104
 105  - [join $not_merged "\n - "]"
 106                 tk_messageBox \
 107                         -icon info \
 108                         -type ok \
 109                         -title [wm title $w] \
 110                         -parent $w \
 111                         -message $msg
 112         }
 113         if {$to_delete eq {}} return
 114         if {$check_cmt eq {}} {
 115                 set msg {Recovering deleted branches is difficult.
 116
 117 Delete the selected branches?}
 118                 if {[tk_messageBox \
 119                         -icon warning \
 120                         -type yesno \
 121                         -title [wm title $w] \
 122                         -parent $w \
 123                         -message $msg] ne yes} {
 124                         return
 125                 }
 126         }
 127
 128         set failed {}
 129         foreach i $to_delete {
 130                 set b [lindex $i 0]
 131                 set o [lindex $i 1]
 132                 if {[catch {git update-ref -d "refs/heads/$b" $o} err]} {
 133                         append failed " - $b: $err\n"
 134                 }
 135         }
 136
 137         if {$failed ne {}} {
 138                 tk_messageBox \
 139                         -icon error \
 140                         -type ok \
 141                         -title [wm title $w] \
 142                         -parent $w \
 143                         -message "Failed to delete branches:\n$failed"
 144         }
 145
 146         destroy $w
 147 }
 148
 149 }