f3768a6714
Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
401 lines
10 KiB
Tcl
401 lines
10 KiB
Tcl
# git-gui merge conflict resolution
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# parts based on git-mergetool (c) 2006 Theodore Y. Ts'o
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proc merge_resolve_one {stage} {
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global current_diff_path
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switch -- $stage {
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1 { set targetquestion [mc "Force resolution to the base version?"] }
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2 { set targetquestion [mc "Force resolution to this branch?"] }
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3 { set targetquestion [mc "Force resolution to the other branch?"] }
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}
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set op_question [strcat $targetquestion "\n" \
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[mc "Note that the diff shows only conflicting changes.
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%s will be overwritten.
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This operation can be undone only by restarting the merge." \
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[short_path $current_diff_path]]]
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if {[ask_popup $op_question] eq {yes}} {
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merge_load_stages $current_diff_path [list merge_force_stage $stage]
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}
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}
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proc merge_stage_workdir {path {lno {}}} {
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global current_diff_path diff_active
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global current_diff_side ui_workdir
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if {$diff_active} return
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if {$path ne $current_diff_path || $ui_workdir ne $current_diff_side} {
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show_diff $path $ui_workdir $lno {} [list do_merge_stage_workdir $path]
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} else {
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do_merge_stage_workdir $path
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}
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}
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proc do_merge_stage_workdir {path} {
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global current_diff_path is_conflict_diff
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if {$path ne $current_diff_path} return;
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if {$is_conflict_diff} {
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if {[ask_popup [mc "File %s seems to have unresolved conflicts, still stage?" \
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[short_path $path]]] ne {yes}} {
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return
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}
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}
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merge_add_resolution $path
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}
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proc merge_add_resolution {path} {
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global current_diff_path ui_workdir
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set after [next_diff_after_action $ui_workdir $path {} {^_?U}]
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update_index \
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[mc "Adding resolution for %s" [short_path $path]] \
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[list $path] \
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[concat $after [list ui_ready]]
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}
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proc merge_force_stage {stage} {
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global current_diff_path merge_stages
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if {$merge_stages($stage) ne {}} {
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git checkout-index -f --stage=$stage -- $current_diff_path
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} else {
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file delete -- $current_diff_path
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}
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merge_add_resolution $current_diff_path
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}
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proc merge_load_stages {path cont} {
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global merge_stages_fd merge_stages merge_stages_buf
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if {[info exists merge_stages_fd]} {
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catch { kill_file_process $merge_stages_fd }
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catch { close $merge_stages_fd }
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}
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set merge_stages(0) {}
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set merge_stages(1) {}
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set merge_stages(2) {}
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set merge_stages(3) {}
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set merge_stages_buf {}
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set merge_stages_fd [eval git_read ls-files -u -z -- {$path}]
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fconfigure $merge_stages_fd -blocking 0 -translation binary -encoding binary
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fileevent $merge_stages_fd readable [list read_merge_stages $merge_stages_fd $cont]
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}
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proc read_merge_stages {fd cont} {
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global merge_stages_buf merge_stages_fd merge_stages
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append merge_stages_buf [read $fd]
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set pck [split $merge_stages_buf "\0"]
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set merge_stages_buf [lindex $pck end]
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if {[eof $fd] && $merge_stages_buf ne {}} {
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lappend pck {}
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set merge_stages_buf {}
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}
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foreach p [lrange $pck 0 end-1] {
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set fcols [split $p "\t"]
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set cols [split [lindex $fcols 0] " "]
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set stage [lindex $cols 2]
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set merge_stages($stage) [lrange $cols 0 1]
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}
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if {[eof $fd]} {
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close $fd
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unset merge_stages_fd
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eval $cont
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}
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}
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proc merge_resolve_tool {} {
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global current_diff_path
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merge_load_stages $current_diff_path [list merge_resolve_tool2]
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}
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proc merge_resolve_tool2 {} {
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global current_diff_path merge_stages
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# Validate the stages
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if {$merge_stages(2) eq {} ||
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[lindex $merge_stages(2) 0] eq {120000} ||
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[lindex $merge_stages(2) 0] eq {160000} ||
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$merge_stages(3) eq {} ||
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[lindex $merge_stages(3) 0] eq {120000} ||
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[lindex $merge_stages(3) 0] eq {160000}
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} {
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error_popup [mc "Cannot resolve deletion or link conflicts using a tool"]
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return
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}
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if {![file exists $current_diff_path]} {
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error_popup [mc "Conflict file does not exist"]
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return
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}
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# Determine the tool to use
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set tool [get_config merge.tool]
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if {$tool eq {}} { set tool meld }
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set merge_tool_path [get_config "mergetool.$tool.path"]
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if {$merge_tool_path eq {}} {
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switch -- $tool {
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emerge { set merge_tool_path "emacs" }
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araxis { set merge_tool_path "compare" }
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default { set merge_tool_path $tool }
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}
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}
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# Make file names
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set filebase [file rootname $current_diff_path]
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set fileext [file extension $current_diff_path]
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set basename [lindex [file split $current_diff_path] end]
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set MERGED $current_diff_path
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set BASE "./$MERGED.BASE$fileext"
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set LOCAL "./$MERGED.LOCAL$fileext"
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set REMOTE "./$MERGED.REMOTE$fileext"
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set BACKUP "./$MERGED.BACKUP$fileext"
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set base_stage $merge_stages(1)
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# Build the command line
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switch -- $tool {
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araxis {
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if {$base_stage ne {}} {
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set cmdline [list "$merge_tool_path" -wait -merge -3 -a1 \
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-title1:"'$MERGED (Base)'" -title2:"'$MERGED (Local)'" \
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-title3:"'$MERGED (Remote)'" \
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"$BASE" "$LOCAL" "$REMOTE" "$MERGED"]
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} else {
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set cmdline [list "$merge_tool_path" -wait -2 \
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-title1:"'$MERGED (Local)'" -title2:"'$MERGED (Remote)'" \
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"$LOCAL" "$REMOTE" "$MERGED"]
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}
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}
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bc3 {
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if {$base_stage ne {}} {
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set cmdline [list "$merge_tool_path" "$LOCAL" "$REMOTE" "$BASE" -mergeoutput="$MERGED"]
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} else {
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set cmdline [list "$merge_tool_path" "$LOCAL" "$REMOTE" -mergeoutput="$MERGED"]
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}
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}
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ecmerge {
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if {$base_stage ne {}} {
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set cmdline [list "$merge_tool_path" "$BASE" "$LOCAL" "$REMOTE" --default --mode=merge3 --to="$MERGED"]
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} else {
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set cmdline [list "$merge_tool_path" "$LOCAL" "$REMOTE" --default --mode=merge2 --to="$MERGED"]
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}
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}
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emerge {
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if {$base_stage ne {}} {
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set cmdline [list "$merge_tool_path" -f emerge-files-with-ancestor-command \
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"$LOCAL" "$REMOTE" "$BASE" "$basename"]
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} else {
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set cmdline [list "$merge_tool_path" -f emerge-files-command \
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"$LOCAL" "$REMOTE" "$basename"]
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}
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}
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gvimdiff {
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set cmdline [list "$merge_tool_path" -f "$LOCAL" "$MERGED" "$REMOTE"]
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}
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kdiff3 {
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if {$base_stage ne {}} {
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set cmdline [list "$merge_tool_path" --auto --L1 "$MERGED (Base)" \
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--L2 "$MERGED (Local)" --L3 "$MERGED (Remote)" -o "$MERGED" "$BASE" "$LOCAL" "$REMOTE"]
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} else {
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set cmdline [list "$merge_tool_path" --auto --L1 "$MERGED (Local)" \
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--L2 "$MERGED (Remote)" -o "$MERGED" "$LOCAL" "$REMOTE"]
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}
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}
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meld {
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set cmdline [list "$merge_tool_path" "$LOCAL" "$MERGED" "$REMOTE"]
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}
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opendiff {
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if {$base_stage ne {}} {
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set cmdline [list "$merge_tool_path" "$LOCAL" "$REMOTE" -ancestor "$BASE" -merge "$MERGED"]
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} else {
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set cmdline [list "$merge_tool_path" "$LOCAL" "$REMOTE" -merge "$MERGED"]
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}
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}
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p4merge {
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set cmdline [list "$merge_tool_path" "$BASE" "$REMOTE" "$LOCAL" "$MERGED"]
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}
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tkdiff {
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if {$base_stage ne {}} {
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set cmdline [list "$merge_tool_path" -a "$BASE" -o "$MERGED" "$LOCAL" "$REMOTE"]
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} else {
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set cmdline [list "$merge_tool_path" -o "$MERGED" "$LOCAL" "$REMOTE"]
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}
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}
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vimdiff {
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error_popup [mc "Not a GUI merge tool: '%s'" $tool]
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return
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}
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winmerge {
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if {$base_stage ne {}} {
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# This tool does not support 3-way merges.
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# Use the 'conflict file' resolution feature instead.
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set cmdline [list "$merge_tool_path" -e -ub "$MERGED"]
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} else {
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set cmdline [list "$merge_tool_path" -e -ub -wl \
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-dl "Theirs File" -dr "Mine File" "$REMOTE" "$LOCAL" "$MERGED"]
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}
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}
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xxdiff {
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if {$base_stage ne {}} {
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set cmdline [list "$merge_tool_path" -X --show-merged-pane \
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-R {Accel.SaveAsMerged: "Ctrl-S"} \
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-R {Accel.Search: "Ctrl+F"} \
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-R {Accel.SearchForward: "Ctrl-G"} \
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--merged-file "$MERGED" "$LOCAL" "$BASE" "$REMOTE"]
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} else {
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set cmdline [list "$merge_tool_path" -X --show-merged-pane \
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-R {Accel.SaveAsMerged: "Ctrl-S"} \
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-R {Accel.Search: "Ctrl+F"} \
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-R {Accel.SearchForward: "Ctrl-G"} \
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--merged-file "$MERGED" "$LOCAL" "$REMOTE"]
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}
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}
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default {
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error_popup [mc "Unsupported merge tool '%s'" $tool]
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return
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}
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}
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merge_tool_start $cmdline $MERGED $BACKUP [list $BASE $LOCAL $REMOTE]
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}
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proc delete_temp_files {files} {
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foreach fname $files {
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file delete $fname
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}
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}
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proc merge_tool_get_stages {target stages} {
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global merge_stages
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set i 1
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foreach fname $stages {
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if {$merge_stages($i) eq {}} {
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file delete $fname
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catch { close [open $fname w] }
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} else {
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# A hack to support autocrlf properly
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git checkout-index -f --stage=$i -- $target
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file rename -force -- $target $fname
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}
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incr i
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}
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}
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proc merge_tool_start {cmdline target backup stages} {
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global merge_stages mtool_target mtool_tmpfiles mtool_fd mtool_mtime
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if {[info exists mtool_fd]} {
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if {[ask_popup [mc "Merge tool is already running, terminate it?"]] eq {yes}} {
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catch { kill_file_process $mtool_fd }
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catch { close $mtool_fd }
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unset mtool_fd
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set old_backup [lindex $mtool_tmpfiles end]
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file rename -force -- $old_backup $mtool_target
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delete_temp_files $mtool_tmpfiles
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} else {
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return
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}
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}
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# Save the original file
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file rename -force -- $target $backup
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# Get the blobs; it destroys $target
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if {[catch {merge_tool_get_stages $target $stages} err]} {
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file rename -force -- $backup $target
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delete_temp_files $stages
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error_popup [mc "Error retrieving versions:\n%s" $err]
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return
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}
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# Restore the conflict file
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file copy -force -- $backup $target
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# Initialize global state
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set mtool_target $target
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set mtool_mtime [file mtime $target]
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set mtool_tmpfiles $stages
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lappend mtool_tmpfiles $backup
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# Force redirection to avoid interpreting output on stderr
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# as an error, and launch the tool
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lappend cmdline {2>@1}
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if {[catch { set mtool_fd [_open_stdout_stderr $cmdline] } err]} {
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delete_temp_files $mtool_tmpfiles
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error_popup [mc "Could not start the merge tool:\n\n%s" $err]
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return
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}
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ui_status [mc "Running merge tool..."]
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fconfigure $mtool_fd -blocking 0 -translation binary -encoding binary
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fileevent $mtool_fd readable [list read_mtool_output $mtool_fd]
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}
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proc read_mtool_output {fd} {
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global mtool_fd mtool_tmpfiles
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read $fd
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if {[eof $fd]} {
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unset mtool_fd
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fconfigure $fd -blocking 1
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merge_tool_finish $fd
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}
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}
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proc merge_tool_finish {fd} {
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global mtool_tmpfiles mtool_target mtool_mtime
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set backup [lindex $mtool_tmpfiles end]
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set failed 0
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# Check the return code
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if {[catch {close $fd} err]} {
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set failed 1
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if {$err ne {child process exited abnormally}} {
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error_popup [strcat [mc "Merge tool failed."] "\n\n$err"]
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}
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}
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# Finish
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if {$failed} {
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file rename -force -- $backup $mtool_target
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delete_temp_files $mtool_tmpfiles
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ui_status [mc "Merge tool failed."]
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} else {
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if {[is_config_true mergetool.keepbackup]} {
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file rename -force -- $backup "$mtool_target.orig"
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}
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delete_temp_files $mtool_tmpfiles
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reshow_diff
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}
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}
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