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https://github.com/git/git.git
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905d9c9653
If the user has no branches at all (their refs/heads/ is empty) and they are on a detached HEAD we have a valid repository but there are no branches to populate into the branch pulldown in the create branch dialog. Instead of erroring out we can skip that part of the dialog, much like we do with tracking branches or tags when the user doesn't have any. Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
575 lines
15 KiB
Tcl
575 lines
15 KiB
Tcl
# git-gui branch (create/delete) support
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# Copyright (C) 2006, 2007 Shawn Pearce
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proc load_all_heads {} {
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global all_heads
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set all_heads [list]
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set fd [open "| git for-each-ref --format=%(refname) refs/heads" r]
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while {[gets $fd line] > 0} {
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if {[is_tracking_branch $line]} continue
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if {![regsub ^refs/heads/ $line {} name]} continue
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lappend all_heads $name
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}
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close $fd
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set all_heads [lsort $all_heads]
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}
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proc load_all_tags {} {
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set all_tags [list]
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set fd [open "| git for-each-ref --format=%(refname) refs/tags" r]
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while {[gets $fd line] > 0} {
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if {![regsub ^refs/tags/ $line {} name]} continue
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lappend all_tags $name
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}
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close $fd
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return [lsort $all_tags]
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}
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proc populate_branch_menu {} {
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global all_heads disable_on_lock
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set m .mbar.branch
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set last [$m index last]
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for {set i 0} {$i <= $last} {incr i} {
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if {[$m type $i] eq {separator}} {
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$m delete $i last
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set new_dol [list]
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foreach a $disable_on_lock {
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if {[lindex $a 0] ne $m || [lindex $a 2] < $i} {
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lappend new_dol $a
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}
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}
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set disable_on_lock $new_dol
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break
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}
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}
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if {$all_heads ne {}} {
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$m add separator
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}
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foreach b $all_heads {
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$m add radiobutton \
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-label $b \
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-command [list switch_branch $b] \
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-variable current_branch \
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-value $b
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lappend disable_on_lock \
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[list $m entryconf [$m index last] -state]
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}
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}
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proc do_create_branch_action {w} {
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global all_heads null_sha1 repo_config
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global create_branch_checkout create_branch_revtype
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global create_branch_head create_branch_trackinghead
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global create_branch_name create_branch_revexp
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global create_branch_tag
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set newbranch $create_branch_name
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if {$newbranch eq {}
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|| $newbranch eq $repo_config(gui.newbranchtemplate)} {
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tk_messageBox \
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-icon error \
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-type ok \
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-title [wm title $w] \
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-parent $w \
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-message "Please supply a branch name."
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focus $w.desc.name_t
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return
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}
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if {![catch {git show-ref --verify -- "refs/heads/$newbranch"}]} {
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tk_messageBox \
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-icon error \
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-type ok \
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-title [wm title $w] \
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-parent $w \
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-message "Branch '$newbranch' already exists."
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focus $w.desc.name_t
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return
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}
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if {[catch {git check-ref-format "heads/$newbranch"}]} {
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tk_messageBox \
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-icon error \
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-type ok \
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-title [wm title $w] \
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-parent $w \
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-message "We do not like '$newbranch' as a branch name."
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focus $w.desc.name_t
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return
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}
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set rev {}
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switch -- $create_branch_revtype {
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head {set rev $create_branch_head}
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tracking {set rev $create_branch_trackinghead}
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tag {set rev $create_branch_tag}
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expression {set rev $create_branch_revexp}
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}
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if {[catch {set cmt [git rev-parse --verify "${rev}^0"]}]} {
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tk_messageBox \
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-icon error \
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-type ok \
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-title [wm title $w] \
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-parent $w \
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-message "Invalid starting revision: $rev"
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return
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}
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if {[catch {
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git update-ref \
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-m "branch: Created from $rev" \
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"refs/heads/$newbranch" \
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$cmt \
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$null_sha1
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} err]} {
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tk_messageBox \
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-icon error \
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-type ok \
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-title [wm title $w] \
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-parent $w \
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-message "Failed to create '$newbranch'.\n\n$err"
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return
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}
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lappend all_heads $newbranch
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set all_heads [lsort $all_heads]
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populate_branch_menu
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destroy $w
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if {$create_branch_checkout} {
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switch_branch $newbranch
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}
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}
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proc radio_selector {varname value args} {
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upvar #0 $varname var
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set var $value
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}
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trace add variable create_branch_head write \
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[list radio_selector create_branch_revtype head]
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trace add variable create_branch_trackinghead write \
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[list radio_selector create_branch_revtype tracking]
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trace add variable create_branch_tag write \
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[list radio_selector create_branch_revtype tag]
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trace add variable delete_branch_head write \
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[list radio_selector delete_branch_checktype head]
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trace add variable delete_branch_trackinghead write \
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[list radio_selector delete_branch_checktype tracking]
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proc do_create_branch {} {
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global all_heads current_branch repo_config
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global create_branch_checkout create_branch_revtype
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global create_branch_head create_branch_trackinghead
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global create_branch_name create_branch_revexp
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global create_branch_tag
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set w .branch_editor
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toplevel $w
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wm geometry $w "+[winfo rootx .]+[winfo rooty .]"
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label $w.header -text {Create New Branch} \
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-font font_uibold
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pack $w.header -side top -fill x
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frame $w.buttons
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button $w.buttons.create -text Create \
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-default active \
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-command [list do_create_branch_action $w]
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pack $w.buttons.create -side right
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button $w.buttons.cancel -text {Cancel} \
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-command [list destroy $w]
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pack $w.buttons.cancel -side right -padx 5
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pack $w.buttons -side bottom -fill x -pady 10 -padx 10
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labelframe $w.desc -text {Branch Description}
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label $w.desc.name_l -text {Name:}
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entry $w.desc.name_t \
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-borderwidth 1 \
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-relief sunken \
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-width 40 \
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-textvariable create_branch_name \
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-validate key \
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-validatecommand {
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if {%d == 1 && [regexp {[~^:?*\[\0- ]} %S]} {return 0}
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return 1
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}
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grid $w.desc.name_l $w.desc.name_t -sticky we -padx {0 5}
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grid columnconfigure $w.desc 1 -weight 1
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pack $w.desc -anchor nw -fill x -pady 5 -padx 5
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labelframe $w.from -text {Starting Revision}
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if {$all_heads ne {}} {
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radiobutton $w.from.head_r \
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-text {Local Branch:} \
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-value head \
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-variable create_branch_revtype
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eval tk_optionMenu $w.from.head_m create_branch_head $all_heads
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grid $w.from.head_r $w.from.head_m -sticky w
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}
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set all_trackings [all_tracking_branches]
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if {$all_trackings ne {}} {
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set create_branch_trackinghead [lindex $all_trackings 0]
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radiobutton $w.from.tracking_r \
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-text {Tracking Branch:} \
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-value tracking \
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-variable create_branch_revtype
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eval tk_optionMenu $w.from.tracking_m \
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create_branch_trackinghead \
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$all_trackings
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grid $w.from.tracking_r $w.from.tracking_m -sticky w
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}
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set all_tags [load_all_tags]
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if {$all_tags ne {}} {
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set create_branch_tag [lindex $all_tags 0]
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radiobutton $w.from.tag_r \
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-text {Tag:} \
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-value tag \
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-variable create_branch_revtype
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eval tk_optionMenu $w.from.tag_m create_branch_tag $all_tags
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grid $w.from.tag_r $w.from.tag_m -sticky w
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}
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radiobutton $w.from.exp_r \
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-text {Revision Expression:} \
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-value expression \
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-variable create_branch_revtype
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entry $w.from.exp_t \
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-borderwidth 1 \
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-relief sunken \
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-width 50 \
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-textvariable create_branch_revexp \
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-validate key \
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-validatecommand {
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if {%d == 1 && [regexp {\s} %S]} {return 0}
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if {%d == 1 && [string length %S] > 0} {
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set create_branch_revtype expression
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}
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return 1
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}
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grid $w.from.exp_r $w.from.exp_t -sticky we -padx {0 5}
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grid columnconfigure $w.from 1 -weight 1
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pack $w.from -anchor nw -fill x -pady 5 -padx 5
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labelframe $w.postActions -text {Post Creation Actions}
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checkbutton $w.postActions.checkout \
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-text {Checkout after creation} \
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-variable create_branch_checkout
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pack $w.postActions.checkout -anchor nw
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pack $w.postActions -anchor nw -fill x -pady 5 -padx 5
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set create_branch_checkout 1
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set create_branch_head $current_branch
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set create_branch_revtype head
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set create_branch_name $repo_config(gui.newbranchtemplate)
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set create_branch_revexp {}
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bind $w <Visibility> "
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grab $w
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$w.desc.name_t icursor end
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focus $w.desc.name_t
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"
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bind $w <Key-Escape> "destroy $w"
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bind $w <Key-Return> "do_create_branch_action $w;break"
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wm title $w "[appname] ([reponame]): Create Branch"
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tkwait window $w
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}
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proc do_delete_branch_action {w} {
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global all_heads
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global delete_branch_checktype delete_branch_head delete_branch_trackinghead
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set check_rev {}
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switch -- $delete_branch_checktype {
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head {set check_rev $delete_branch_head}
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tracking {set check_rev $delete_branch_trackinghead}
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always {set check_rev {:none}}
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}
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if {$check_rev eq {:none}} {
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set check_cmt {}
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} elseif {[catch {set check_cmt [git rev-parse --verify "${check_rev}^0"]}]} {
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tk_messageBox \
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-icon error \
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-type ok \
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-title [wm title $w] \
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-parent $w \
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-message "Invalid check revision: $check_rev"
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return
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}
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set to_delete [list]
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set not_merged [list]
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foreach i [$w.list.l curselection] {
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set b [$w.list.l get $i]
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if {[catch {set o [git rev-parse --verify $b]}]} continue
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if {$check_cmt ne {}} {
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if {$b eq $check_rev} continue
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if {[catch {set m [git merge-base $o $check_cmt]}]} continue
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if {$o ne $m} {
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lappend not_merged $b
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continue
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}
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}
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lappend to_delete [list $b $o]
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}
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if {$not_merged ne {}} {
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set msg "The following branches are not completely merged into $check_rev:
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- [join $not_merged "\n - "]"
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tk_messageBox \
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-icon info \
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-type ok \
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-title [wm title $w] \
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-parent $w \
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-message $msg
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}
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if {$to_delete eq {}} return
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if {$delete_branch_checktype eq {always}} {
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set msg {Recovering deleted branches is difficult.
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Delete the selected branches?}
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if {[tk_messageBox \
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-icon warning \
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-type yesno \
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-title [wm title $w] \
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-parent $w \
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-message $msg] ne yes} {
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return
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}
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}
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set failed {}
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foreach i $to_delete {
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set b [lindex $i 0]
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set o [lindex $i 1]
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if {[catch {git update-ref -d "refs/heads/$b" $o} err]} {
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append failed " - $b: $err\n"
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} else {
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set x [lsearch -sorted -exact $all_heads $b]
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if {$x >= 0} {
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set all_heads [lreplace $all_heads $x $x]
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}
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}
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}
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if {$failed ne {}} {
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tk_messageBox \
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-icon error \
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-type ok \
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-title [wm title $w] \
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-parent $w \
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-message "Failed to delete branches:\n$failed"
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}
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set all_heads [lsort $all_heads]
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populate_branch_menu
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destroy $w
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}
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proc do_delete_branch {} {
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global all_heads tracking_branches current_branch
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global delete_branch_checktype delete_branch_head delete_branch_trackinghead
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set w .branch_editor
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toplevel $w
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wm geometry $w "+[winfo rootx .]+[winfo rooty .]"
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label $w.header -text {Delete Local Branch} \
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-font font_uibold
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pack $w.header -side top -fill x
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frame $w.buttons
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button $w.buttons.create -text Delete \
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-command [list do_delete_branch_action $w]
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pack $w.buttons.create -side right
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button $w.buttons.cancel -text {Cancel} \
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-command [list destroy $w]
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pack $w.buttons.cancel -side right -padx 5
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pack $w.buttons -side bottom -fill x -pady 10 -padx 10
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labelframe $w.list -text {Local Branches}
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listbox $w.list.l \
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-height 10 \
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-width 70 \
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-selectmode extended \
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-yscrollcommand [list $w.list.sby set]
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foreach h $all_heads {
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if {$h ne $current_branch} {
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$w.list.l insert end $h
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}
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}
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scrollbar $w.list.sby -command [list $w.list.l yview]
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pack $w.list.sby -side right -fill y
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pack $w.list.l -side left -fill both -expand 1
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pack $w.list -fill both -expand 1 -pady 5 -padx 5
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labelframe $w.validate -text {Delete Only If}
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radiobutton $w.validate.head_r \
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-text {Merged Into Local Branch:} \
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-value head \
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-variable delete_branch_checktype
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eval tk_optionMenu $w.validate.head_m delete_branch_head $all_heads
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grid $w.validate.head_r $w.validate.head_m -sticky w
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set all_trackings [all_tracking_branches]
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if {$all_trackings ne {}} {
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set delete_branch_trackinghead [lindex $all_trackings 0]
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radiobutton $w.validate.tracking_r \
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-text {Merged Into Tracking Branch:} \
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-value tracking \
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-variable delete_branch_checktype
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eval tk_optionMenu $w.validate.tracking_m \
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delete_branch_trackinghead \
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$all_trackings
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grid $w.validate.tracking_r $w.validate.tracking_m -sticky w
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}
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radiobutton $w.validate.always_r \
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-text {Always (Do not perform merge checks)} \
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-value always \
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-variable delete_branch_checktype
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grid $w.validate.always_r -columnspan 2 -sticky w
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grid columnconfigure $w.validate 1 -weight 1
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pack $w.validate -anchor nw -fill x -pady 5 -padx 5
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set delete_branch_head $current_branch
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set delete_branch_checktype head
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bind $w <Visibility> "grab $w; focus $w"
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bind $w <Key-Escape> "destroy $w"
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wm title $w "[appname] ([reponame]): Delete Branch"
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tkwait window $w
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}
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proc switch_branch {new_branch} {
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global HEAD commit_type current_branch repo_config
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if {![lock_index switch]} return
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# -- Our in memory state should match the repository.
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#
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repository_state curType curHEAD curMERGE_HEAD
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if {[string match amend* $commit_type]
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&& $curType eq {normal}
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&& $curHEAD eq $HEAD} {
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} elseif {$commit_type ne $curType || $HEAD ne $curHEAD} {
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info_popup {Last scanned state does not match repository state.
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Another Git program has modified this repository since the last scan. A rescan must be performed before the current branch can be changed.
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The rescan will be automatically started now.
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}
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unlock_index
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rescan {set ui_status_value {Ready.}}
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return
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}
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# -- Don't do a pointless switch.
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#
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if {$current_branch eq $new_branch} {
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unlock_index
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return
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}
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if {$repo_config(gui.trustmtime) eq {true}} {
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switch_branch_stage2 {} $new_branch
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} else {
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set ui_status_value {Refreshing file status...}
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set cmd [list git update-index]
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lappend cmd -q
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lappend cmd --unmerged
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lappend cmd --ignore-missing
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lappend cmd --refresh
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set fd_rf [open "| $cmd" r]
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fconfigure $fd_rf -blocking 0 -translation binary
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fileevent $fd_rf readable \
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[list switch_branch_stage2 $fd_rf $new_branch]
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}
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}
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proc switch_branch_stage2 {fd_rf new_branch} {
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global ui_status_value HEAD
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if {$fd_rf ne {}} {
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read $fd_rf
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if {![eof $fd_rf]} return
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close $fd_rf
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}
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set ui_status_value "Updating working directory to '$new_branch'..."
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set cmd [list git read-tree]
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lappend cmd -m
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lappend cmd -u
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lappend cmd --exclude-per-directory=.gitignore
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lappend cmd $HEAD
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lappend cmd $new_branch
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set fd_rt [open "| $cmd" r]
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fconfigure $fd_rt -blocking 0 -translation binary
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fileevent $fd_rt readable \
|
|
[list switch_branch_readtree_wait $fd_rt $new_branch]
|
|
}
|
|
|
|
proc switch_branch_readtree_wait {fd_rt new_branch} {
|
|
global selected_commit_type commit_type HEAD MERGE_HEAD PARENT
|
|
global current_branch
|
|
global ui_comm ui_status_value
|
|
|
|
# -- We never get interesting output on stdout; only stderr.
|
|
#
|
|
read $fd_rt
|
|
fconfigure $fd_rt -blocking 1
|
|
if {![eof $fd_rt]} {
|
|
fconfigure $fd_rt -blocking 0
|
|
return
|
|
}
|
|
|
|
# -- The working directory wasn't in sync with the index and
|
|
# we'd have to overwrite something to make the switch. A
|
|
# merge is required.
|
|
#
|
|
if {[catch {close $fd_rt} err]} {
|
|
regsub {^fatal: } $err {} err
|
|
warn_popup "File level merge required.
|
|
|
|
$err
|
|
|
|
Staying on branch '$current_branch'."
|
|
set ui_status_value "Aborted checkout of '$new_branch' (file level merging is required)."
|
|
unlock_index
|
|
return
|
|
}
|
|
|
|
# -- Update the symbolic ref. Core git doesn't even check for failure
|
|
# here, it Just Works(tm). If it doesn't we are in some really ugly
|
|
# state that is difficult to recover from within git-gui.
|
|
#
|
|
if {[catch {git symbolic-ref HEAD "refs/heads/$new_branch"} err]} {
|
|
error_popup "Failed to set current branch.
|
|
|
|
This working directory is only partially switched. We successfully updated your files, but failed to update an internal Git file.
|
|
|
|
This should not have occurred. [appname] will now close and give up.
|
|
|
|
$err"
|
|
do_quit
|
|
return
|
|
}
|
|
|
|
# -- Update our repository state. If we were previously in amend mode
|
|
# we need to toss the current buffer and do a full rescan to update
|
|
# our file lists. If we weren't in amend mode our file lists are
|
|
# accurate and we can avoid the rescan.
|
|
#
|
|
unlock_index
|
|
set selected_commit_type new
|
|
if {[string match amend* $commit_type]} {
|
|
$ui_comm delete 0.0 end
|
|
$ui_comm edit reset
|
|
$ui_comm edit modified false
|
|
rescan {set ui_status_value "Checked out branch '$current_branch'."}
|
|
} else {
|
|
repository_state commit_type HEAD MERGE_HEAD
|
|
set PARENT $HEAD
|
|
set ui_status_value "Checked out branch '$current_branch'."
|
|
}
|
|
}
|