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git/lib/choose_rev.tcl
Shawn O. Pearce 7cf0442667 git-gui: Option to default new branches to match tracking branches
In some workflows users will want to almost always just create a new
local branch that matches a remote branch.  In this type of workflow
it is handy to have the new branch dialog default to "Match Tracking
Branch" and "Starting Revision"-Tracking Branch", with the focus in
the branch filter field.  This can save users working on this type
of workflow at least two mouse clicks every time they create a new
local branch or switch to one with a fast-forward.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2007-07-08 21:12:54 -04:00

330 lines
7.5 KiB
Tcl

# git-gui revision chooser
# Copyright (C) 2006, 2007 Shawn Pearce
class choose_rev {
image create photo ::choose_rev::img_find -data {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}
field w ; # our megawidget path
field w_list ; # list of currently filtered specs
field w_filter ; # filter entry for $w_list
field c_expr {}; # current revision expression
field filter ; # current filter string
field revtype head; # type of revision chosen
field cur_specs [list]; # list of specs for $revtype
field spec_head ; # list of all head specs
field spec_trck ; # list of all tracking branch specs
field spec_tag ; # list of all tag specs
constructor new {path {title {}}} {
global all_heads current_branch
set w $path
if {$title ne {}} {
labelframe $w -text $title
} else {
frame $w
}
bind $w <Destroy> [cb _delete %W]
radiobutton $w.expr_r \
-text {Revision Expression:} \
-value expr \
-variable @revtype
entry $w.expr_t \
-borderwidth 1 \
-relief sunken \
-width 50 \
-textvariable @c_expr \
-validate key \
-validatecommand [cb _validate %d %S]
grid $w.expr_r $w.expr_t -sticky we -padx {0 5}
frame $w.types
radiobutton $w.types.head_r \
-text {Local Branch} \
-value head \
-variable @revtype
pack $w.types.head_r -side left
radiobutton $w.types.trck_r \
-text {Tracking Branch} \
-value trck \
-variable @revtype
pack $w.types.trck_r -side left
radiobutton $w.types.tag_r \
-text {Tag} \
-value tag \
-variable @revtype
pack $w.types.tag_r -side left
set w_filter $w.types.filter
entry $w_filter \
-borderwidth 1 \
-relief sunken \
-width 12 \
-textvariable @filter \
-validate key \
-validatecommand [cb _filter %P]
pack $w_filter -side right
pack [label $w.types.filter_icon \
-image ::choose_rev::img_find \
] -side right
grid $w.types -sticky we -padx {0 5} -columnspan 2
frame $w.list
set w_list $w.list.l
listbox $w_list \
-font font_diff \
-width 50 \
-height 5 \
-selectmode browse \
-exportselection false \
-xscrollcommand [cb _sb_set $w.list.sbx h] \
-yscrollcommand [cb _sb_set $w.list.sby v]
pack $w_list -fill both -expand 1
grid $w.list -sticky nswe -padx {20 5} -columnspan 2
grid columnconfigure $w 1 -weight 1
grid rowconfigure $w 2 -weight 1
trace add variable @revtype write [cb _select]
bind $w_filter <Key-Return> [list focus $w_list]\;break
bind $w_filter <Key-Down> [list focus $w_list]
set spec_head [list]
foreach name $all_heads {
lappend spec_head [list $name refs/heads/$name]
}
set spec_trck [list]
foreach spec [all_tracking_branches] {
set name [lindex $spec 0]
regsub ^refs/(heads|remotes)/ $name {} name
lappend spec_trck [concat $name $spec]
}
set spec_tag [list]
foreach name [load_all_tags] {
lappend spec_tag [list $name refs/tags/$name]
}
if {[llength $spec_head] > 0} { set revtype head
} elseif {[llength $spec_trck] > 0} { set revtype trck
} elseif {[llength $spec_tag ] > 0} { set revtype tag
} else { set revtype expr
}
if {$revtype eq {head} && $current_branch ne {}} {
set i 0
foreach spec $spec_head {
if {[lindex $spec 0] eq $current_branch} {
$w_list selection set $i
break
}
incr i
}
}
return $this
}
method none {text} {
if {![winfo exists $w.none_r]} {
radiobutton $w.none_r \
-anchor w \
-value none \
-variable @revtype
grid $w.none_r -sticky we -padx {0 5} -columnspan 2
}
$w.none_r configure -text $text
}
method get {} {
switch -- $revtype {
head -
trck -
tag {
set i [$w_list curselection]
if {$i ne {}} {
return [lindex $cur_specs $i 0]
} else {
return {}
}
}
expr { return $c_expr }
none { return {} }
default { error "unknown type of revision" }
}
}
method pick_tracking_branch {} {
set revtype trck
}
method get_tracking_branch {} {
set i [$w_list curselection]
if {$i eq {} || $revtype ne {trck}} {
return {}
}
return [lrange [lindex $cur_specs $i] 1 end]
}
method get_commit {} {
set e [_expr $this]
if {$e eq {}} {
return {}
}
return [git rev-parse --verify "$e^0"]
}
method commit_or_die {} {
if {[catch {set new [get_commit $this]} err]} {
# Cleanup the not-so-friendly error from rev-parse.
#
regsub {^fatal:\s*} $err {} err
if {$err eq {Needed a single revision}} {
set err {}
}
set top [winfo toplevel $w]
set msg "Invalid revision: [get $this]\n\n$err"
tk_messageBox \
-icon error \
-type ok \
-title [wm title $top] \
-parent $top \
-message $msg
error $msg
}
return $new
}
method _expr {} {
switch -- $revtype {
head -
trck -
tag {
set i [$w_list curselection]
if {$i ne {}} {
return [lindex $cur_specs $i 1]
} else {
error "No revision selected."
}
}
expr {
if {$c_expr ne {}} {
return $c_expr
} else {
error "Revision expression is empty."
}
}
none { return {} }
default { error "unknown type of revision" }
}
}
method _validate {d S} {
if {$d == 1} {
if {[regexp {\s} $S]} {
return 0
}
if {[string length $S] > 0} {
set revtype expr
}
}
return 1
}
method _filter {P} {
if {[regexp {\s} $P]} {
return 0
}
_rebuild $this $P
return 1
}
method _select {args} {
_rebuild $this $filter
if {[$w_filter cget -state] eq {normal}} {
focus $w_filter
}
}
method _rebuild {pat} {
set ste normal
switch -- $revtype {
head { set new $spec_head }
trck { set new $spec_trck }
tag { set new $spec_tag }
expr -
none {
set new [list]
set ste disabled
}
}
if {[$w_list cget -state] eq {disabled}} {
$w_list configure -state normal
}
$w_list delete 0 end
if {$pat ne {}} {
set pat *${pat}*
}
set cur_specs [list]
foreach spec $new {
set txt [lindex $spec 0]
if {$pat eq {} || [string match $pat $txt]} {
lappend cur_specs $spec
$w_list insert end $txt
}
}
if {[$w_filter cget -state] ne $ste} {
$w_list configure -state $ste
$w_filter configure -state $ste
}
}
method _delete {current} {
if {$current eq $w} {
delete_this
}
}
method _sb_set {sb orient first last} {
set old_focus [focus -lastfor $w]
if {$first == 0 && $last == 1} {
if {[winfo exists $sb]} {
destroy $sb
if {$old_focus ne {}} {
update
focus $old_focus
}
}
return
}
if {![winfo exists $sb]} {
if {$orient eq {h}} {
scrollbar $sb -orient h -command [list $w_list xview]
pack $sb -fill x -side bottom -before $w_list
} else {
scrollbar $sb -orient v -command [list $w_list yview]
pack $sb -fill y -side right -before $w_list
}
if {$old_focus ne {}} {
update
focus $old_focus
}
}
$sb set $first $last
}
}