lib/branch_create.tcl

   1 # git-gui branch create support
   2 # Copyright (C) 2006, 2007 Shawn Pearce
   3
   4 class branch_create {
   5
   6 field w              ; # widget path
   7 field w_rev          ; # mega-widget to pick the initial revision
   8 field w_name         ; # new branch name widget
   9
  10 field name         {}; # name of the branch the user has chosen
  11 field opt_checkout  1; # automatically checkout the new branch?
  12
  13 constructor dialog {} {
  14         global repo_config
  15
  16         make_toplevel top w
  17         wm title $top "[appname] ([reponame]): Create Branch"
  18         if {$top ne {.}} {
  19                 wm geometry $top "+[winfo rootx .]+[winfo rooty .]"
  20         }
  21
  22         label $w.header -text {Create New Branch} -font font_uibold
  23         pack $w.header -side top -fill x
  24
  25         frame $w.buttons
  26         button $w.buttons.create -text Create \
  27                 -default active \
  28                 -command [cb _create]
  29         pack $w.buttons.create -side right
  30         button $w.buttons.cancel -text {Cancel} \
  31                 -command [list destroy $w]
  32         pack $w.buttons.cancel -side right -padx 5
  33         pack $w.buttons -side bottom -fill x -pady 10 -padx 10
  34
  35         labelframe $w.desc -text {Branch Description}
  36         label $w.desc.name_r \
  37                 -anchor w \
  38                 -text {Name:}
  39         set w_name $w.desc.name_t
  40         entry $w_name \
  41                 -borderwidth 1 \
  42                 -relief sunken \
  43                 -width 40 \
  44                 -textvariable @name \
  45                 -validate key \
  46                 -validatecommand [cb _validate %d %S]
  47         grid $w.desc.name_r $w_name -sticky we -padx {0 5}
  48
  49         grid columnconfigure $w.desc 1 -weight 1
  50         pack $w.desc -anchor nw -fill x -pady 5 -padx 5
  51
  52         set w_rev [::choose_rev::new $w.rev {Starting Revision}]
  53         pack $w.rev -anchor nw -fill x -pady 5 -padx 5
  54
  55         labelframe $w.postActions -text {Post Creation Actions}
  56         checkbutton $w.postActions.checkout \
  57                 -text {Checkout after creation} \
  58                 -variable @opt_checkout
  59         pack $w.postActions.checkout -anchor nw
  60         pack $w.postActions -anchor nw -fill x -pady 5 -padx 5
  61
  62         set name $repo_config(gui.newbranchtemplate)
  63
  64         bind $w <Visibility> "
  65                 grab $w
  66                 $w_name icursor end
  67                 focus $w_name
  68         "
  69         bind $w <Key-Escape> [list destroy $w]
  70         bind $w <Key-Return> [cb _create]\;break
  71         tkwait window $w
  72 }
  73
  74 method _create {} {
  75         global null_sha1 repo_config
  76         global all_heads
  77
  78         set newbranch $name
  79         if {$newbranch eq {}
  80                 || $newbranch eq $repo_config(gui.newbranchtemplate)} {
  81                 tk_messageBox \
  82                         -icon error \
  83                         -type ok \
  84                         -title [wm title $w] \
  85                         -parent $w \
  86                         -message "Please supply a branch name."
  87                 focus $w_name
  88                 return
  89         }
  90         if {![catch {git show-ref --verify -- "refs/heads/$newbranch"}]} {
  91                 tk_messageBox \
  92                         -icon error \
  93                         -type ok \
  94                         -title [wm title $w] \
  95                         -parent $w \
  96                         -message "Branch '$newbranch' already exists."
  97                 focus $w_name
  98                 return
  99         }
 100         if {[catch {git check-ref-format "heads/$newbranch"}]} {
 101                 tk_messageBox \
 102                         -icon error \
 103                         -type ok \
 104                         -title [wm title $w] \
 105                         -parent $w \
 106                         -message "We do not like '$newbranch' as a branch name."
 107                 focus $w_name
 108                 return
 109         }
 110
 111         if {[catch {set cmt [$w_rev get_commit]}]} {
 112                 tk_messageBox \
 113                         -icon error \
 114                         -type ok \
 115                         -title [wm title $w] \
 116                         -parent $w \
 117                         -message "Invalid starting revision: [$w_rev get]"
 118                 return
 119         }
 120         if {[catch {
 121                         git update-ref \
 122                                 -m "branch: Created from [$w_rev get]" \
 123                                 "refs/heads/$newbranch" \
 124                                 $cmt \
 125                                 $null_sha1
 126                 } err]} {
 127                 tk_messageBox \
 128                         -icon error \
 129                         -type ok \
 130                         -title [wm title $w] \
 131                         -parent $w \
 132                         -message "Failed to create '$newbranch'.\n\n$err"
 133                 return
 134         }
 135
 136         lappend all_heads $newbranch
 137         set all_heads [lsort $all_heads]
 138         populate_branch_menu
 139         destroy $w
 140         if {$opt_checkout} {
 141                 switch_branch $newbranch
 142         }
 143 }
 144
 145 method _validate {d S} {
 146         if {$d == 1} {
 147                 if {[regexp {[~^:?*\[\0- ]} $S]} {
 148                         return 0
 149                 }
 150                 if {[string length $S] > 0} {
 151                         set name_type user
 152                 }
 153         }
 154         return 1
 155 }
 156
 157 }