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400 lines
10 KiB
400 lines
10 KiB
# 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 $after {ui_ready;}] |
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} |
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proc merge_force_stage {stage} { |
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global current_diff_path merge_stages |
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if {$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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