1 # git-gui branch merge support
2 # Copyright (C) 2006, 2007 Shawn Pearce
6 field w ; # top level window
7 field w_rev ; # mega-widget to pick the revision to merge
10 global HEAD commit_type file_states
12 if {[string match amend* $commit_type]} {
13 info_popup {Cannot merge while amending.
15 You must finish amending this commit before starting any type of merge.
20 if {[committer_ident] eq {}} {return 0}
21 if {![lock_index merge]} {return 0}
23 # -- Our in memory state should match the repository.
25 repository_state curType curHEAD curMERGE_HEAD
26 if {$commit_type ne $curType || $HEAD ne $curHEAD} {
27 info_popup {Last scanned state does not match repository state.
29 Another Git program has modified this repository since the last scan. A rescan must be performed before a merge can be performed.
31 The rescan will be automatically started now.
38 foreach path [array names file_states] {
39 switch -glob -- [lindex $file_states($path) 0] {
41 continue; # and pray it works!
44 error_popup "You are in the middle of a conflicted merge.
46 File [short_path $path] has merge conflicts.
48 You must resolve them, add the file, and commit to complete the current merge. Only then can you begin another merge.
54 error_popup "You are in the middle of a change.
56 File [short_path $path] is modified.
58 You should complete the current commit before starting a merge. Doing so will help you abort a failed merge, should the need arise.
70 if {[catch {$w_rev commit_or_die}]} {
76 method _visualize {} {
79 do_gitk [list $rev --not HEAD]
84 global HEAD current_branch remote_url
91 set spec [$w_rev get_tracking_branch]
92 set cmit [$w_rev get_commit]
95 lappend cmd --strategy=recursive
97 set fh [open [gitdir FETCH_HEAD] w]
98 fconfigure $fh -translation lf
104 set remote $remote_url([lindex $spec 1])
105 set branch [lindex $spec 2]
106 set stitle "$branch of $remote"
108 regsub ^refs/heads/ $branch {} branch
109 puts $fh "$cmit\t\tbranch '$branch' of $remote"
112 lappend cmd [git fmt-merge-msg <[gitdir FETCH_HEAD]]
116 set msg "Merging $current_branch and $stitle"
118 set cons [console::new "Merge" "merge $stitle"]
119 console::exec $cons $cmd [cb _finish $cons]
121 wm protocol $w WM_DELETE_WINDOW {}
125 method _finish {cons ok} {
126 console::done $cons $ok
128 set msg {Merge completed successfully.}
130 set msg {Merge failed. Conflict resolution is required.}
133 rescan [list ui_status $msg]
137 constructor dialog {} {
138 global current_branch
141 if {![_can_merge $this]} {
147 wm title $top "[appname] ([reponame]): Merge"
149 wm geometry $top "+[winfo rootx .]+[winfo rooty .]"
152 set _start [cb _start]
155 -text "Merge Into $current_branch" \
157 pack $w.header -side top -fill x
160 button $w.buttons.visualize \
162 -command [cb _visualize]
163 pack $w.buttons.visualize -side left
164 button $w.buttons.merge \
167 pack $w.buttons.merge -side right
168 button $w.buttons.cancel \
170 -command [cb _cancel]
171 pack $w.buttons.cancel -side right -padx 5
172 pack $w.buttons -side bottom -fill x -pady 10 -padx 10
174 set w_rev [::choose_rev::new_unmerged $w.rev {Revision To Merge}]
175 pack $w.rev -anchor nw -fill both -expand 1 -pady 5 -padx 5
177 bind $w <$M1B-Key-Return> $_start
178 bind $w <Key-Return> $_start
179 bind $w <Key-Escape> [cb _cancel]
180 wm protocol $w WM_DELETE_WINDOW [cb _cancel]
182 bind $w.buttons.merge <Visibility> [cb _visible]
188 if {[is_config_true gui.matchtrackingbranch]} {
189 $w_rev pick_tracking_branch
195 wm protocol $w WM_DELETE_WINDOW {}
203 namespace eval merge {
206 global HEAD commit_type file_states
208 if {[string match amend* $commit_type]} {
209 info_popup {Cannot abort while amending.
211 You must finish amending this commit.
216 if {![lock_index abort]} return
218 if {[string match *merge* $commit_type]} {
224 if {[ask_popup "Abort $op?
226 Aborting the current $op will cause *ALL* uncommitted changes to be lost.
228 Continue with aborting the current $op?"] eq {yes}} {
229 set fd [git_read read-tree --reset -u HEAD]
230 fconfigure $fd -blocking 0 -translation binary
231 fileevent $fd readable [namespace code [list _reset_wait $fd]]
232 ui_status {Aborting... please wait...}
238 proc _reset_wait {fd} {
246 $ui_comm delete 0.0 end
247 $ui_comm edit modified false
249 catch {file delete [gitdir MERGE_HEAD]}
250 catch {file delete [gitdir rr-cache MERGE_RR]}
251 catch {file delete [gitdir SQUASH_MSG]}
252 catch {file delete [gitdir MERGE_MSG]}
253 catch {file delete [gitdir GITGUI_MSG]}
255 rescan {ui_status {Abort completed. Ready.}}