]> asedeno.scripts.mit.edu Git - git.git/blobdiff - lib/mergetool.tcl
git-gui: mc cannot be used before msgcat has been loaded
[git.git] / lib / mergetool.tcl
index 7945d746f8dae6d5f3d9264df4737ccb89ef9c32..3fe90e697002baaa1c5fa8df4c3d3eae199b062d 100644 (file)
@@ -5,32 +5,56 @@ proc merge_resolve_one {stage} {
        global current_diff_path
 
        switch -- $stage {
-               1 { set target [mc "the base version"] }
-               2 { set target [mc "this branch"] }
-               3 { set target [mc "the other branch"] }
+               1 { set targetquestion [mc "Force resolution to the base version?"] }
+               2 { set targetquestion [mc "Force resolution to this branch?"] }
+               3 { set targetquestion [mc "Force resolution to the other branch?"] }
        }
 
-       set op_question [mc "Force resolution to %s?
-Note that the diff shows only conflicting changes.
+       set op_question [strcat $targetquestion "\n" \
+[mc "Note that the diff shows only conflicting changes.
 
 %s will be overwritten.
 
 This operation can be undone only by restarting the merge." \
-               $target [short_path $current_diff_path]]
+               [short_path $current_diff_path]]]
 
        if {[ask_popup $op_question] eq {yes}} {
                merge_load_stages $current_diff_path [list merge_force_stage $stage]
        }
 }
 
-proc merge_add_resolution {path} {
-       global current_diff_path
+proc merge_stage_workdir {path {lno {}}} {
+       global current_diff_path diff_active
+       global current_diff_side ui_workdir
+
+       if {$diff_active} return
 
-       if {$path eq $current_diff_path} {
-               set after {reshow_diff;}
+       if {$path ne $current_diff_path || $ui_workdir ne $current_diff_side} {
+               show_diff $path $ui_workdir $lno {} [list do_merge_stage_workdir $path]
        } else {
-               set after {}
+               do_merge_stage_workdir $path
        }
+}
+
+proc do_merge_stage_workdir {path} {
+       global current_diff_path is_conflict_diff
+
+       if {$path ne $current_diff_path} return;
+
+       if {$is_conflict_diff} {
+               if {[ask_popup [mc "File %s seems to have unresolved conflicts, still stage?" \
+                               [short_path $path]]] ne {yes}} {
+                       return
+               }
+       }
+
+       merge_add_resolution $path
+}
+
+proc merge_add_resolution {path} {
+       global current_diff_path ui_workdir
+
+       set after [next_diff_after_action $ui_workdir $path {} {^_?U}]
 
        update_index \
                [mc "Adding resolution for %s" [short_path $path]] \
@@ -64,7 +88,7 @@ proc merge_load_stages {path cont} {
        set merge_stages(3) {}
        set merge_stages_buf {}
 
-       set merge_stages_fd [eval git_read ls-files -u -z -- $path]
+       set merge_stages_fd [eval git_read ls-files -u -z -- {$path}]
 
        fconfigure $merge_stages_fd -blocking 0 -translation binary -encoding binary
        fileevent $merge_stages_fd readable [list read_merge_stages $merge_stages_fd $cont]
@@ -96,3 +120,274 @@ proc read_merge_stages {fd cont} {
                eval $cont
        }
 }
+
+proc merge_resolve_tool {} {
+       global current_diff_path
+
+       merge_load_stages $current_diff_path [list merge_resolve_tool2]
+}
+
+proc merge_resolve_tool2 {} {
+       global current_diff_path merge_stages
+
+       # Validate the stages
+       if {$merge_stages(2) eq {} ||
+           [lindex $merge_stages(2) 0] eq {120000} ||
+           [lindex $merge_stages(2) 0] eq {160000} ||
+           $merge_stages(3) eq {} ||
+           [lindex $merge_stages(3) 0] eq {120000} ||
+           [lindex $merge_stages(3) 0] eq {160000}
+       } {
+               error_popup [mc "Cannot resolve deletion or link conflicts using a tool"]
+               return
+       }
+
+       if {![file exists $current_diff_path]} {
+               error_popup [mc "Conflict file does not exist"]
+               return
+       }
+
+       # Determine the tool to use
+       set tool [get_config merge.tool]
+       if {$tool eq {}} { set tool meld }
+
+       set merge_tool_path [get_config "mergetool.$tool.path"]
+       if {$merge_tool_path eq {}} {
+               switch -- $tool {
+               emerge { set merge_tool_path "emacs" }
+               araxis { set merge_tool_path "compare" }
+               default { set merge_tool_path $tool }
+               }
+       }
+
+       # Make file names
+       set filebase [file rootname $current_diff_path]
+       set fileext  [file extension $current_diff_path]
+       set basename [lindex [file split $current_diff_path] end]
+
+       set MERGED   $current_diff_path
+       set BASE     "./$MERGED.BASE$fileext"
+       set LOCAL    "./$MERGED.LOCAL$fileext"
+       set REMOTE   "./$MERGED.REMOTE$fileext"
+       set BACKUP   "./$MERGED.BACKUP$fileext"
+
+       set base_stage $merge_stages(1)
+
+       # Build the command line
+       switch -- $tool {
+       kdiff3 {
+               if {$base_stage ne {}} {
+                       set cmdline [list "$merge_tool_path" --auto --L1 "$MERGED (Base)" \
+                               --L2 "$MERGED (Local)" --L3 "$MERGED (Remote)" -o "$MERGED" "$BASE" "$LOCAL" "$REMOTE"]
+               } else {
+                       set cmdline [list "$merge_tool_path" --auto --L1 "$MERGED (Local)" \
+                               --L2 "$MERGED (Remote)" -o "$MERGED" "$LOCAL" "$REMOTE"]
+               }
+       }
+       tkdiff {
+               if {$base_stage ne {}} {
+                       set cmdline [list "$merge_tool_path" -a "$BASE" -o "$MERGED" "$LOCAL" "$REMOTE"]
+               } else {
+                       set cmdline [list "$merge_tool_path" -o "$MERGED" "$LOCAL" "$REMOTE"]
+               }
+       }
+       meld {
+               set cmdline [list "$merge_tool_path" "$LOCAL" "$MERGED" "$REMOTE"]
+       }
+       gvimdiff {
+               set cmdline [list "$merge_tool_path" -f "$LOCAL" "$MERGED" "$REMOTE"]
+       }
+       xxdiff {
+               if {$base_stage ne {}} {
+                       set cmdline [list "$merge_tool_path" -X --show-merged-pane \
+                                           -R {Accel.SaveAsMerged: "Ctrl-S"} \
+                                           -R {Accel.Search: "Ctrl+F"} \
+                                           -R {Accel.SearchForward: "Ctrl-G"} \
+                                           --merged-file "$MERGED" "$LOCAL" "$BASE" "$REMOTE"]
+               } else {
+                       set cmdline [list "$merge_tool_path" -X --show-merged-pane \
+                                           -R {Accel.SaveAsMerged: "Ctrl-S"} \
+                                           -R {Accel.Search: "Ctrl+F"} \
+                                           -R {Accel.SearchForward: "Ctrl-G"} \
+                                           --merged-file "$MERGED" "$LOCAL" "$REMOTE"]
+               }
+       }
+       opendiff {
+               if {$base_stage ne {}} {
+                       set cmdline [list "$merge_tool_path" "$LOCAL" "$REMOTE" -ancestor "$BASE" -merge "$MERGED"]
+               } else {
+                       set cmdline [list "$merge_tool_path" "$LOCAL" "$REMOTE" -merge "$MERGED"]
+               }
+       }
+       ecmerge {
+               if {$base_stage ne {}} {
+                       set cmdline [list "$merge_tool_path" "$BASE" "$LOCAL" "$REMOTE" --default --mode=merge3 --to="$MERGED"]
+               } else {
+                       set cmdline [list "$merge_tool_path" "$LOCAL" "$REMOTE" --default --mode=merge2 --to="$MERGED"]
+               }
+       }
+       emerge {
+               if {$base_stage ne {}} {
+                       set cmdline [list "$merge_tool_path" -f emerge-files-with-ancestor-command \
+                                       "$LOCAL" "$REMOTE" "$BASE" "$basename"]
+               } else {
+                       set cmdline [list "$merge_tool_path" -f emerge-files-command \
+                                       "$LOCAL" "$REMOTE" "$basename"]
+               }
+       }
+       winmerge {
+               if {$base_stage ne {}} {
+                       # This tool does not support 3-way merges.
+                       # Use the 'conflict file' resolution feature instead.
+                       set cmdline [list "$merge_tool_path" -e -ub "$MERGED"]
+               } else {
+                       set cmdline [list "$merge_tool_path" -e -ub -wl \
+                               -dl "Theirs File" -dr "Mine File" "$REMOTE" "$LOCAL" "$MERGED"]
+               }
+       }
+       araxis {
+               if {$base_stage ne {}} {
+                       set cmdline [list "$merge_tool_path" -wait -merge -3 -a1 \
+                               -title1:"'$MERGED (Base)'" -title2:"'$MERGED (Local)'" \
+                               -title3:"'$MERGED (Remote)'" \
+                               "$BASE" "$LOCAL" "$REMOTE" "$MERGED"]
+               } else {
+                       set cmdline [list "$merge_tool_path" -wait -2 \
+                                -title1:"'$MERGED (Local)'" -title2:"'$MERGED (Remote)'" \
+                                "$LOCAL" "$REMOTE" "$MERGED"]
+               }
+       }
+       p4merge {
+               set cmdline [list "$merge_tool_path" "$BASE" "$REMOTE" "$LOCAL" "$MERGED"]
+       }
+       vimdiff {
+               error_popup [mc "Not a GUI merge tool: '%s'" $tool]
+               return
+       }
+       default {
+               error_popup [mc "Unsupported merge tool '%s'" $tool]
+               return
+       }
+       }
+
+       merge_tool_start $cmdline $MERGED $BACKUP [list $BASE $LOCAL $REMOTE]
+}
+
+proc delete_temp_files {files} {
+       foreach fname $files {
+               file delete $fname
+       }
+}
+
+proc merge_tool_get_stages {target stages} {
+       global merge_stages
+
+       set i 1
+       foreach fname $stages {
+               if {$merge_stages($i) eq {}} {
+                       file delete $fname
+                       catch { close [open $fname w] }
+               } else {
+                       # A hack to support autocrlf properly
+                       git checkout-index -f --stage=$i -- $target
+                       file rename -force -- $target $fname
+               }
+               incr i
+       }
+}
+
+proc merge_tool_start {cmdline target backup stages} {
+       global merge_stages mtool_target mtool_tmpfiles mtool_fd mtool_mtime
+
+       if {[info exists mtool_fd]} {
+               if {[ask_popup [mc "Merge tool is already running, terminate it?"]] eq {yes}} {
+                       catch { kill_file_process $mtool_fd }
+                       catch { close $mtool_fd }
+                       unset mtool_fd
+
+                       set old_backup [lindex $mtool_tmpfiles end]
+                       file rename -force -- $old_backup $mtool_target
+                       delete_temp_files $mtool_tmpfiles
+               } else {
+                       return
+               }
+       }
+
+       # Save the original file
+       file rename -force -- $target $backup
+
+       # Get the blobs; it destroys $target
+       if {[catch {merge_tool_get_stages $target $stages} err]} {
+               file rename -force -- $backup $target
+               delete_temp_files $stages
+               error_popup [mc "Error retrieving versions:\n%s" $err]
+               return
+       }
+
+       # Restore the conflict file
+       file copy -force -- $backup $target
+
+       # Initialize global state
+       set mtool_target $target
+       set mtool_mtime [file mtime $target]
+       set mtool_tmpfiles $stages
+
+       lappend mtool_tmpfiles $backup
+
+       # Force redirection to avoid interpreting output on stderr
+       # as an error, and launch the tool
+       lappend cmdline {2>@1}
+
+       if {[catch { set mtool_fd [_open_stdout_stderr $cmdline] } err]} {
+               delete_temp_files $mtool_tmpfiles
+               error_popup [mc "Could not start the merge tool:\n\n%s" $err]
+               return
+       }
+
+       ui_status [mc "Running merge tool..."]
+
+       fconfigure $mtool_fd -blocking 0 -translation binary -encoding binary
+       fileevent $mtool_fd readable [list read_mtool_output $mtool_fd]
+}
+
+proc read_mtool_output {fd} {
+       global mtool_fd mtool_tmpfiles
+
+       read $fd
+       if {[eof $fd]} {
+               unset mtool_fd
+
+               fconfigure $fd -blocking 1
+               merge_tool_finish $fd
+       }
+}
+
+proc merge_tool_finish {fd} {
+       global mtool_tmpfiles mtool_target mtool_mtime
+
+       set backup [lindex $mtool_tmpfiles end]
+       set failed 0
+
+       # Check the return code
+       if {[catch {close $fd} err]} {
+               set failed 1
+               if {$err ne {child process exited abnormally}} {
+                       error_popup [strcat [mc "Merge tool failed."] "\n\n$err"]
+               }
+       }
+
+       # Finish
+       if {$failed} {
+               file rename -force -- $backup $mtool_target
+               delete_temp_files $mtool_tmpfiles
+               ui_status [mc "Merge tool failed."]
+       } else {
+               if {[is_config_true mergetool.keepbackup]} {
+                       file rename -force -- $backup "$mtool_target.orig"
+               }
+
+               delete_temp_files $mtool_tmpfiles
+
+               reshow_diff
+       }
+}