diff options
Diffstat (limited to 'git-gui/lib/branch.tcl')
| -rw-r--r-- | git-gui/lib/branch.tcl | 572 |
1 files changed, 572 insertions, 0 deletions
diff --git a/git-gui/lib/branch.tcl b/git-gui/lib/branch.tcl new file mode 100644 index 0000000000..caaee5cf17 --- /dev/null +++ b/git-gui/lib/branch.tcl @@ -0,0 +1,572 @@ +# git-gui branch (create/delete) support +# Copyright (C) 2006, 2007 Shawn Pearce + +proc load_all_heads {} { + global all_heads + + set all_heads [list] + set fd [open "| git for-each-ref --format=%(refname) refs/heads" r] + while {[gets $fd line] > 0} { + if {[is_tracking_branch $line]} continue + if {![regsub ^refs/heads/ $line {} name]} continue + lappend all_heads $name + } + close $fd + + set all_heads [lsort $all_heads] +} + +proc load_all_tags {} { + set all_tags [list] + set fd [open "| git for-each-ref --format=%(refname) refs/tags" r] + while {[gets $fd line] > 0} { + if {![regsub ^refs/tags/ $line {} name]} continue + lappend all_tags $name + } + close $fd + + return [lsort $all_tags] +} + +proc populate_branch_menu {} { + global all_heads disable_on_lock + + set m .mbar.branch + set last [$m index last] + for {set i 0} {$i <= $last} {incr i} { + if {[$m type $i] eq {separator}} { + $m delete $i last + set new_dol [list] + foreach a $disable_on_lock { + if {[lindex $a 0] ne $m || [lindex $a 2] < $i} { + lappend new_dol $a + } + } + set disable_on_lock $new_dol + break + } + } + + if {$all_heads ne {}} { + $m add separator + } + foreach b $all_heads { + $m add radiobutton \ + -label $b \ + -command [list switch_branch $b] \ + -variable current_branch \ + -value $b + lappend disable_on_lock \ + [list $m entryconf [$m index last] -state] + } +} + +proc do_create_branch_action {w} { + global all_heads null_sha1 repo_config + global create_branch_checkout create_branch_revtype + global create_branch_head create_branch_trackinghead + global create_branch_name create_branch_revexp + global create_branch_tag + + set newbranch $create_branch_name + if {$newbranch eq {} + || $newbranch eq $repo_config(gui.newbranchtemplate)} { + tk_messageBox \ + -icon error \ + -type ok \ + -title [wm title $w] \ + -parent $w \ + -message "Please supply a branch name." + focus $w.desc.name_t + return + } + if {![catch {git show-ref --verify -- "refs/heads/$newbranch"}]} { + tk_messageBox \ + -icon error \ + -type ok \ + -title [wm title $w] \ + -parent $w \ + -message "Branch '$newbranch' already exists." + focus $w.desc.name_t + return + } + if {[catch {git check-ref-format "heads/$newbranch"}]} { + tk_messageBox \ + -icon error \ + -type ok \ + -title [wm title $w] \ + -parent $w \ + -message "We do not like '$newbranch' as a branch name." + focus $w.desc.name_t + return + } + + set rev {} + switch -- $create_branch_revtype { + head {set rev $create_branch_head} + tracking {set rev $create_branch_trackinghead} + tag {set rev $create_branch_tag} + expression {set rev $create_branch_revexp} + } + if {[catch {set cmt [git rev-parse --verify "${rev}^0"]}]} { + tk_messageBox \ + -icon error \ + -type ok \ + -title [wm title $w] \ + -parent $w \ + -message "Invalid starting revision: $rev" + return + } + if {[catch { + git update-ref \ + -m "branch: Created from $rev" \ + "refs/heads/$newbranch" \ + $cmt \ + $null_sha1 + } err]} { + tk_messageBox \ + -icon error \ + -type ok \ + -title [wm title $w] \ + -parent $w \ + -message "Failed to create '$newbranch'.\n\n$err" + return + } + + lappend all_heads $newbranch + set all_heads [lsort $all_heads] + populate_branch_menu + destroy $w + if {$create_branch_checkout} { + switch_branch $newbranch + } +} + +proc radio_selector {varname value args} { + upvar #0 $varname var + set var $value +} + +trace add variable create_branch_head write \ + [list radio_selector create_branch_revtype head] +trace add variable create_branch_trackinghead write \ + [list radio_selector create_branch_revtype tracking] +trace add variable create_branch_tag write \ + [list radio_selector create_branch_revtype tag] + +trace add variable delete_branch_head write \ + [list radio_selector delete_branch_checktype head] +trace add variable delete_branch_trackinghead write \ + [list radio_selector delete_branch_checktype tracking] + +proc do_create_branch {} { + global all_heads current_branch repo_config + global create_branch_checkout create_branch_revtype + global create_branch_head create_branch_trackinghead + global create_branch_name create_branch_revexp + global create_branch_tag + + set w .branch_editor + toplevel $w + wm geometry $w "+[winfo rootx .]+[winfo rooty .]" + + label $w.header -text {Create New Branch} \ + -font font_uibold + pack $w.header -side top -fill x + + frame $w.buttons + button $w.buttons.create -text Create \ + -default active \ + -command [list do_create_branch_action $w] + pack $w.buttons.create -side right + button $w.buttons.cancel -text {Cancel} \ + -command [list destroy $w] + pack $w.buttons.cancel -side right -padx 5 + pack $w.buttons -side bottom -fill x -pady 10 -padx 10 + + labelframe $w.desc -text {Branch Description} + label $w.desc.name_l -text {Name:} + entry $w.desc.name_t \ + -borderwidth 1 \ + -relief sunken \ + -width 40 \ + -textvariable create_branch_name \ + -validate key \ + -validatecommand { + if {%d == 1 && [regexp {[~^:?*\[\0- ]} %S]} {return 0} + return 1 + } + grid $w.desc.name_l $w.desc.name_t -sticky we -padx {0 5} + grid columnconfigure $w.desc 1 -weight 1 + pack $w.desc -anchor nw -fill x -pady 5 -padx 5 + + labelframe $w.from -text {Starting Revision} + radiobutton $w.from.head_r \ + -text {Local Branch:} \ + -value head \ + -variable create_branch_revtype + eval tk_optionMenu $w.from.head_m create_branch_head $all_heads + grid $w.from.head_r $w.from.head_m -sticky w + set all_trackings [all_tracking_branches] + if {$all_trackings ne {}} { + set create_branch_trackinghead [lindex $all_trackings 0] + radiobutton $w.from.tracking_r \ + -text {Tracking Branch:} \ + -value tracking \ + -variable create_branch_revtype + eval tk_optionMenu $w.from.tracking_m \ + create_branch_trackinghead \ + $all_trackings + grid $w.from.tracking_r $w.from.tracking_m -sticky w + } + set all_tags [load_all_tags] + if {$all_tags ne {}} { + set create_branch_tag [lindex $all_tags 0] + radiobutton $w.from.tag_r \ + -text {Tag:} \ + -value tag \ + -variable create_branch_revtype + eval tk_optionMenu $w.from.tag_m create_branch_tag $all_tags + grid $w.from.tag_r $w.from.tag_m -sticky w + } + radiobutton $w.from.exp_r \ + -text {Revision Expression:} \ + -value expression \ + -variable create_branch_revtype + entry $w.from.exp_t \ + -borderwidth 1 \ + -relief sunken \ + -width 50 \ + -textvariable create_branch_revexp \ + -validate key \ + -validatecommand { + if {%d == 1 && [regexp {\s} %S]} {return 0} + if {%d == 1 && [string length %S] > 0} { + set create_branch_revtype expression + } + return 1 + } + grid $w.from.exp_r $w.from.exp_t -sticky we -padx {0 5} + grid columnconfigure $w.from 1 -weight 1 + pack $w.from -anchor nw -fill x -pady 5 -padx 5 + + labelframe $w.postActions -text {Post Creation Actions} + checkbutton $w.postActions.checkout \ + -text {Checkout after creation} \ + -variable create_branch_checkout + pack $w.postActions.checkout -anchor nw + pack $w.postActions -anchor nw -fill x -pady 5 -padx 5 + + set create_branch_checkout 1 + set create_branch_head $current_branch + set create_branch_revtype head + set create_branch_name $repo_config(gui.newbranchtemplate) + set create_branch_revexp {} + + bind $w <Visibility> " + grab $w + $w.desc.name_t icursor end + focus $w.desc.name_t + " + bind $w <Key-Escape> "destroy $w" + bind $w <Key-Return> "do_create_branch_action $w;break" + wm title $w "[appname] ([reponame]): Create Branch" + tkwait window $w +} + +proc do_delete_branch_action {w} { + global all_heads + global delete_branch_checktype delete_branch_head delete_branch_trackinghead + + set check_rev {} + switch -- $delete_branch_checktype { + head {set check_rev $delete_branch_head} + tracking {set check_rev $delete_branch_trackinghead} + always {set check_rev {:none}} + } + if {$check_rev eq {:none}} { + set check_cmt {} + } elseif {[catch {set check_cmt [git rev-parse --verify "${check_rev}^0"]}]} { + tk_messageBox \ + -icon error \ + -type ok \ + -title [wm title $w] \ + -parent $w \ + -message "Invalid check revision: $check_rev" + return + } + + set to_delete [list] + set not_merged [list] + foreach i [$w.list.l curselection] { + set b [$w.list.l get $i] + if {[catch {set o [git rev-parse --verify $b]}]} continue + if {$check_cmt ne {}} { + if {$b eq $check_rev} continue + if {[catch {set m [git merge-base $o $check_cmt]}]} continue + if {$o ne $m} { + lappend not_merged $b + continue + } + } + lappend to_delete [list $b $o] + } + if {$not_merged ne {}} { + set msg "The following branches are not completely merged into $check_rev: + + - [join $not_merged "\n - "]" + tk_messageBox \ + -icon info \ + -type ok \ + -title [wm title $w] \ + -parent $w \ + -message $msg + } + if {$to_delete eq {}} return + if {$delete_branch_checktype eq {always}} { + set msg {Recovering deleted branches is difficult. + +Delete the selected branches?} + if {[tk_messageBox \ + -icon warning \ + -type yesno \ + -title [wm title $w] \ + -parent $w \ + -message $msg] ne yes} { + return + } + } + + set failed {} + foreach i $to_delete { + set b [lindex $i 0] + set o [lindex $i 1] + if {[catch {git update-ref -d "refs/heads/$b" $o} err]} { + append failed " - $b: $err\n" + } else { + set x [lsearch -sorted -exact $all_heads $b] + if {$x >= 0} { + set all_heads [lreplace $all_heads $x $x] + } + } + } + + if {$failed ne {}} { + tk_messageBox \ + -icon error \ + -type ok \ + -title [wm title $w] \ + -parent $w \ + -message "Failed to delete branches:\n$failed" + } + + set all_heads [lsort $all_heads] + populate_branch_menu + destroy $w +} + +proc do_delete_branch {} { + global all_heads tracking_branches current_branch + global delete_branch_checktype delete_branch_head delete_branch_trackinghead + + set w .branch_editor + toplevel $w + wm geometry $w "+[winfo rootx .]+[winfo rooty .]" + + label $w.header -text {Delete Local Branch} \ + -font font_uibold + pack $w.header -side top -fill x + + frame $w.buttons + button $w.buttons.create -text Delete \ + -command [list do_delete_branch_action $w] + pack $w.buttons.create -side right + button $w.buttons.cancel -text {Cancel} \ + -command [list destroy $w] + pack $w.buttons.cancel -side right -padx 5 + pack $w.buttons -side bottom -fill x -pady 10 -padx 10 + + labelframe $w.list -text {Local Branches} + listbox $w.list.l \ + -height 10 \ + -width 70 \ + -selectmode extended \ + -yscrollcommand [list $w.list.sby set] + foreach h $all_heads { + if {$h ne $current_branch} { + $w.list.l insert end $h + } + } + scrollbar $w.list.sby -command [list $w.list.l yview] + pack $w.list.sby -side right -fill y + pack $w.list.l -side left -fill both -expand 1 + pack $w.list -fill both -expand 1 -pady 5 -padx 5 + + labelframe $w.validate -text {Delete Only If} + radiobutton $w.validate.head_r \ + -text {Merged Into Local Branch:} \ + -value head \ + -variable delete_branch_checktype + eval tk_optionMenu $w.validate.head_m delete_branch_head $all_heads + grid $w.validate.head_r $w.validate.head_m -sticky w + set all_trackings [all_tracking_branches] + if {$all_trackings ne {}} { + set delete_branch_trackinghead [lindex $all_trackings 0] + radiobutton $w.validate.tracking_r \ + -text {Merged Into Tracking Branch:} \ + -value tracking \ + -variable delete_branch_checktype + eval tk_optionMenu $w.validate.tracking_m \ + delete_branch_trackinghead \ + $all_trackings + grid $w.validate.tracking_r $w.validate.tracking_m -sticky w + } + radiobutton $w.validate.always_r \ + -text {Always (Do not perform merge checks)} \ + -value always \ + -variable delete_branch_checktype + grid $w.validate.always_r -columnspan 2 -sticky w + grid columnconfigure $w.validate 1 -weight 1 + pack $w.validate -anchor nw -fill x -pady 5 -padx 5 + + set delete_branch_head $current_branch + set delete_branch_checktype head + + bind $w <Visibility> "grab $w; focus $w" + bind $w <Key-Escape> "destroy $w" + wm title $w "[appname] ([reponame]): Delete Branch" + tkwait window $w +} + +proc switch_branch {new_branch} { + global HEAD commit_type current_branch repo_config + + if {![lock_index switch]} return + + # -- Our in memory state should match the repository. + # + repository_state curType curHEAD curMERGE_HEAD + if {[string match amend* $commit_type] + && $curType eq {normal} + && $curHEAD eq $HEAD} { + } elseif {$commit_type ne $curType || $HEAD ne $curHEAD} { + info_popup {Last scanned state does not match repository state. + +Another Git program has modified this repository since the last scan. A rescan must be performed before the current branch can be changed. + +The rescan will be automatically started now. +} + unlock_index + rescan {set ui_status_value {Ready.}} + return + } + + # -- Don't do a pointless switch. + # + if {$current_branch eq $new_branch} { + unlock_index + return + } + + if {$repo_config(gui.trustmtime) eq {true}} { + switch_branch_stage2 {} $new_branch + } else { + set ui_status_value {Refreshing file status...} + set cmd [list git update-index] + lappend cmd -q + lappend cmd --unmerged + lappend cmd --ignore-missing + lappend cmd --refresh + set fd_rf [open "| $cmd" r] + fconfigure $fd_rf -blocking 0 -translation binary + fileevent $fd_rf readable \ + [list switch_branch_stage2 $fd_rf $new_branch] + } +} + +proc switch_branch_stage2 {fd_rf new_branch} { + global ui_status_value HEAD + + if {$fd_rf ne {}} { + read $fd_rf + if {![eof $fd_rf]} return + close $fd_rf + } + + set ui_status_value "Updating working directory to '$new_branch'..." + set cmd [list git read-tree] + lappend cmd -m + lappend cmd -u + lappend cmd --exclude-per-directory=.gitignore + lappend cmd $HEAD + lappend cmd $new_branch + set fd_rt [open "| $cmd" r] + fconfigure $fd_rt -blocking 0 -translation binary + 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'." + } +} |