# git-gui branch merge support
# Copyright (C) 2006, 2007 Shawn Pearce
-namespace eval merge {
+class merge {
+
+field w ; # top level window
+field w_rev ; # mega-widget to pick the revision to merge
-proc _can_merge {} {
+method _can_merge {} {
global HEAD commit_type file_states
if {[string match amend* $commit_type]} {
File [short_path $path] has merge conflicts.
-You must resolve them, add the file, and commit to complete the current merge. Only then can you begin another merge.
+You must resolve them, stage the file, and commit to complete the current merge. Only then can you begin another merge.
"
unlock_index
return 0
return 1
}
-proc _refs {w list} {
- set r {}
- foreach i [$w.source.l curselection] {
- lappend r [lindex [lindex $list $i] 0]
+method _rev {} {
+ if {[catch {$w_rev commit_or_die}]} {
+ return {}
}
- return $r
+ return [$w_rev get]
}
-proc _visualize {w list} {
- set revs [_refs $w $list]
- if {$revs eq {}} return
- lappend revs --not HEAD
- do_gitk $revs
+method _visualize {} {
+ set rev [_rev $this]
+ if {$rev ne {}} {
+ do_gitk [list $rev --not HEAD]
+ }
}
-proc _start {w list} {
- global HEAD current_branch
+method _start {} {
+ global HEAD current_branch remote_url
- set cmd [list git merge]
- set names [_refs $w $list]
- set revcnt [llength $names]
- append cmd { } $names
-
- if {$revcnt == 0} {
+ set name [_rev $this]
+ if {$name eq {}} {
return
- } elseif {$revcnt == 1} {
- set unit branch
- } elseif {$revcnt <= 15} {
- set unit branches
-
- if {[tk_dialog \
- $w.confirm_octopus \
- [wm title $w] \
- "Use octopus merge strategy?
-
-You are merging $revcnt branches at once. This requires using the octopus merge driver, which may not succeed if there are file-level conflicts.
-" \
- question \
- 0 \
- {Cancel} \
- {Use octopus} \
- ] != 1} return
- } else {
- tk_messageBox \
- -icon error \
- -type ok \
- -title [wm title $w] \
- -parent $w \
- -message "Too many branches selected.
+ }
-You have requested to merge $revcnt branches in an octopus merge. This exceeds Git's internal limit of 15 branches per merge.
+ set spec [$w_rev get_tracking_branch]
+ set cmit [$w_rev get_commit]
-Please select fewer branches. To merge more than 15 branches, merge the branches in batches.
-"
- return
+ set fh [open [gitdir FETCH_HEAD] w]
+ fconfigure $fh -translation lf
+ if {$spec eq {}} {
+ set remote .
+ set branch $name
+ set stitle $branch
+ } else {
+ set remote $remote_url([lindex $spec 1])
+ if {[regexp {^[^:@]*@[^:]*:/} $remote]} {
+ regsub {^[^:@]*@} $remote {} remote
+ }
+ set branch [lindex $spec 2]
+ set stitle "$branch of $remote"
}
-
- set msg "Merging $current_branch, [join $names {, }]"
+ regsub ^refs/heads/ $branch {} branch
+ puts $fh "$cmit\t\tbranch '$branch' of $remote"
+ close $fh
+
+ set cmd [list git]
+ lappend cmd merge
+ lappend cmd --strategy=recursive
+ lappend cmd [git fmt-merge-msg <[gitdir FETCH_HEAD]]
+ lappend cmd HEAD
+ lappend cmd $name
+
+ set msg "Merging $current_branch and $stitle"
ui_status "$msg..."
- set cons [console::new "Merge" $msg]
- console::exec $cons $cmd \
- [namespace code [list _finish $revcnt $cons]]
+ set cons [console::new "Merge" "merge $stitle"]
+ console::exec $cons $cmd [cb _finish $cons]
wm protocol $w WM_DELETE_WINDOW {}
destroy $w
}
-proc _finish {revcnt w ok} {
- console::done $w $ok
+method _finish {cons ok} {
+ console::done $cons $ok
if {$ok} {
set msg {Merge completed successfully.}
} else {
- if {$revcnt != 1} {
- info_popup "Octopus merge failed.
-
-Your merge of $revcnt branches has failed.
-
-There are file-level conflicts between the branches which must be resolved manually.
-
-The working directory will now be reset.
-
-You can attempt this merge again by merging only one branch at a time." $w
-
- set fd [git_read read-tree --reset -u HEAD]
- fconfigure $fd -blocking 0 -translation binary
- fileevent $fd readable \
- [namespace code [list _reset_wait $fd]]
- ui_status {Aborting... please wait...}
- return
- }
-
set msg {Merge failed. Conflict resolution is required.}
}
unlock_index
rescan [list ui_status $msg]
+ delete_this
}
-proc dialog {} {
+constructor dialog {} {
global current_branch
global M1B
- if {![_can_merge]} return
-
- set fmt {list %(objectname) %(*objectname) %(refname) %(subject)}
- set fr_fd [git_read for-each-ref \
- --tcl \
- --format=$fmt \
- refs/heads \
- refs/remotes \
- refs/tags \
- ]
- fconfigure $fr_fd -translation binary
- while {[gets $fr_fd line] > 0} {
- set line [eval $line]
- set ref [lindex $line 2]
- regsub ^refs/(heads|remotes|tags)/ $ref {} ref
- set subj($ref) [lindex $line 3]
- lappend sha1([lindex $line 0]) $ref
- if {[lindex $line 1] ne {}} {
- lappend sha1([lindex $line 1]) $ref
- }
- }
- close $fr_fd
-
- set to_show {}
- set fr_fd [git_read rev-list --all --not HEAD]
- while {[gets $fr_fd line] > 0} {
- if {[catch {set ref $sha1($line)}]} continue
- foreach n $ref {
- lappend to_show [list $n $line]
- }
+ if {![_can_merge $this]} {
+ delete_this
+ return
}
- close $fr_fd
- set to_show [lsort -unique $to_show]
- set w .merge_setup
- toplevel $w
- wm geometry $w "+[winfo rootx .]+[winfo rooty .]"
+ make_toplevel top w
+ wm title $top "[appname] ([reponame]): Merge"
+ if {$top ne {.}} {
+ wm geometry $top "+[winfo rootx .]+[winfo rooty .]"
+ }
- set _visualize [namespace code [list _visualize $w $to_show]]
- set _start [namespace code [list _start $w $to_show]]
+ set _start [cb _start]
label $w.header \
-text "Merge Into $current_branch" \
pack $w.header -side top -fill x
frame $w.buttons
- button $w.buttons.visualize -text Visualize -command $_visualize
+ button $w.buttons.visualize \
+ -text Visualize \
+ -command [cb _visualize]
pack $w.buttons.visualize -side left
- button $w.buttons.create -text Merge -command $_start
- pack $w.buttons.create -side right
+ button $w.buttons.merge \
+ -text Merge \
+ -command $_start
+ pack $w.buttons.merge -side right
button $w.buttons.cancel \
-text {Cancel} \
- -command "unlock_index;destroy $w"
+ -command [cb _cancel]
pack $w.buttons.cancel -side right -padx 5
pack $w.buttons -side bottom -fill x -pady 10 -padx 10
- labelframe $w.source -text {Source Branches}
- listbox $w.source.l \
- -height 10 \
- -width 70 \
- -font font_diff \
- -selectmode extended \
- -yscrollcommand [list $w.source.sby set]
- scrollbar $w.source.sby -command [list $w.source.l yview]
- pack $w.source.sby -side right -fill y
- pack $w.source.l -side left -fill both -expand 1
- pack $w.source -fill both -expand 1 -pady 5 -padx 5
-
- foreach ref $to_show {
- set n [lindex $ref 0]
- if {[string length $n] > 20} {
- set n "[string range $n 0 16]..."
- }
- $w.source.l insert end [format {%s %-20s %s} \
- [string range [lindex $ref 1] 0 5] \
- $n \
- $subj([lindex $ref 0])]
- }
-
- bind $w.source.l <Key-K> [list event generate %W <Shift-Key-Up>]
- bind $w.source.l <Key-J> [list event generate %W <Shift-Key-Down>]
- bind $w.source.l <Key-k> [list event generate %W <Key-Up>]
- bind $w.source.l <Key-j> [list event generate %W <Key-Down>]
- bind $w.source.l <Key-h> [list event generate %W <Key-Left>]
- bind $w.source.l <Key-l> [list event generate %W <Key-Right>]
- bind $w.source.l <Key-v> $_visualize
+ set w_rev [::choose_rev::new_unmerged $w.rev {Revision To Merge}]
+ pack $w.rev -anchor nw -fill both -expand 1 -pady 5 -padx 5
bind $w <$M1B-Key-Return> $_start
- bind $w <Visibility> "grab $w; focus $w.source.l"
- bind $w <Key-Escape> "unlock_index;destroy $w"
- wm protocol $w WM_DELETE_WINDOW "unlock_index;destroy $w"
- wm title $w "[appname] ([reponame]): Merge"
+ bind $w <Key-Return> $_start
+ bind $w <Key-Escape> [cb _cancel]
+ wm protocol $w WM_DELETE_WINDOW [cb _cancel]
+
+ bind $w.buttons.merge <Visibility> [cb _visible]
tkwait window $w
}
+method _visible {} {
+ grab $w
+ if {[is_config_true gui.matchtrackingbranch]} {
+ $w_rev pick_tracking_branch
+ }
+ $w_rev focus_filter
+}
+
+method _cancel {} {
+ wm protocol $w WM_DELETE_WINDOW {}
+ unlock_index
+ destroy $w
+ delete_this
+}
+
+}
+
+namespace eval merge {
+
proc reset_hard {} {
global HEAD commit_type file_states
if {![lock_index abort]} return
if {[string match *merge* $commit_type]} {
- set op merge
+ set op_question "Abort merge?
+
+Aborting the current merge will cause *ALL* uncommitted changes to be lost.
+
+Continue with aborting the current merge?"
} else {
- set op commit
- }
+ set op_question "Reset changes?
- if {[ask_popup "Abort $op?
+Resetting the changes will cause *ALL* uncommitted changes to be lost.
-Aborting the current $op will cause *ALL* uncommitted changes to be lost.
+Continue with resetting the current changes?"
+ }
-Continue with aborting the current $op?"] eq {yes}} {
- set fd [git_read read-tree --reset -u HEAD]
+ if {[ask_popup $op_question] eq {yes}} {
+ set fd [git_read --stderr read-tree --reset -u -v HEAD]
fconfigure $fd -blocking 0 -translation binary
fileevent $fd readable [namespace code [list _reset_wait $fd]]
- ui_status {Aborting... please wait...}
+ $::main_status start {Aborting} {files reset}
} else {
unlock_index
}
proc _reset_wait {fd} {
global ui_comm
- read $fd
+ $::main_status update_meter [read $fd]
+
+ fconfigure $fd -blocking 1
if {[eof $fd]} {
- close $fd
+ set fail [catch {close $fd} err]
+ $::main_status stop
unlock_index
$ui_comm delete 0.0 end
catch {file delete [gitdir MERGE_MSG]}
catch {file delete [gitdir GITGUI_MSG]}
+ if {$fail} {
+ warn_popup "Abort failed.\n\n$err"
+ }
rescan {ui_status {Abort completed. Ready.}}
+ } else {
+ fconfigure $fd -blocking 0
}
}