mirror of
https://github.com/git/git.git
synced 2024-09-30 13:42:06 +02:00
ff07c3b621
Multiple lines can be selected in the diff viewer and applied all at once, rather than selecting "Stage Line For Commit" on each individual line. Signed-off-by: Jeff Epler <jepler@unpythonic.net> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
731 lines
18 KiB
Tcl
731 lines
18 KiB
Tcl
# git-gui diff viewer
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# Copyright (C) 2006, 2007 Shawn Pearce
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proc clear_diff {} {
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global ui_diff current_diff_path current_diff_header
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global ui_index ui_workdir
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$ui_diff conf -state normal
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$ui_diff delete 0.0 end
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$ui_diff conf -state disabled
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set current_diff_path {}
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set current_diff_header {}
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$ui_index tag remove in_diff 0.0 end
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$ui_workdir tag remove in_diff 0.0 end
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}
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proc reshow_diff {{after {}}} {
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global file_states file_lists
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global current_diff_path current_diff_side
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global ui_diff
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set p $current_diff_path
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if {$p eq {}} {
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# No diff is being shown.
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} elseif {$current_diff_side eq {}} {
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clear_diff
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} elseif {[catch {set s $file_states($p)}]
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|| [lsearch -sorted -exact $file_lists($current_diff_side) $p] == -1} {
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if {[find_next_diff $current_diff_side $p {} {[^O]}]} {
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next_diff $after
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} else {
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clear_diff
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}
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} else {
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set save_pos [lindex [$ui_diff yview] 0]
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show_diff $p $current_diff_side {} $save_pos $after
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}
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}
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proc force_diff_encoding {enc} {
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global current_diff_path
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if {$current_diff_path ne {}} {
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force_path_encoding $current_diff_path $enc
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reshow_diff
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}
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}
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proc handle_empty_diff {} {
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global current_diff_path file_states file_lists
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global diff_empty_count
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set path $current_diff_path
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set s $file_states($path)
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if {[lindex $s 0] ne {_M}} return
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# Prevent infinite rescan loops
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incr diff_empty_count
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if {$diff_empty_count > 1} return
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info_popup [mc "No differences detected.
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%s has no changes.
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The modification date of this file was updated by another application, but the content within the file was not changed.
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A rescan will be automatically started to find other files which may have the same state." [short_path $path]]
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clear_diff
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display_file $path __
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rescan ui_ready 0
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}
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proc show_diff {path w {lno {}} {scroll_pos {}} {callback {}}} {
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global file_states file_lists
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global is_3way_diff is_conflict_diff diff_active repo_config
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global ui_diff ui_index ui_workdir
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global current_diff_path current_diff_side current_diff_header
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global current_diff_queue
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if {$diff_active || ![lock_index read]} return
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clear_diff
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if {$lno == {}} {
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set lno [lsearch -sorted -exact $file_lists($w) $path]
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if {$lno >= 0} {
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incr lno
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}
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}
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if {$lno >= 1} {
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$w tag add in_diff $lno.0 [expr {$lno + 1}].0
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$w see $lno.0
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}
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set s $file_states($path)
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set m [lindex $s 0]
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set is_conflict_diff 0
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set current_diff_path $path
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set current_diff_side $w
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set current_diff_queue {}
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ui_status [mc "Loading diff of %s..." [escape_path $path]]
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set cont_info [list $scroll_pos $callback]
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if {[string first {U} $m] >= 0} {
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merge_load_stages $path [list show_unmerged_diff $cont_info]
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} elseif {$m eq {_O}} {
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show_other_diff $path $w $m $cont_info
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} else {
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start_show_diff $cont_info
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}
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}
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proc show_unmerged_diff {cont_info} {
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global current_diff_path current_diff_side
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global merge_stages ui_diff is_conflict_diff
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global current_diff_queue
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if {$merge_stages(2) eq {}} {
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set is_conflict_diff 1
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lappend current_diff_queue \
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[list [mc "LOCAL: deleted\nREMOTE:\n"] d======= \
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[list ":1:$current_diff_path" ":3:$current_diff_path"]]
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} elseif {$merge_stages(3) eq {}} {
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set is_conflict_diff 1
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lappend current_diff_queue \
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[list [mc "REMOTE: deleted\nLOCAL:\n"] d======= \
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[list ":1:$current_diff_path" ":2:$current_diff_path"]]
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} elseif {[lindex $merge_stages(1) 0] eq {120000}
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|| [lindex $merge_stages(2) 0] eq {120000}
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|| [lindex $merge_stages(3) 0] eq {120000}} {
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set is_conflict_diff 1
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lappend current_diff_queue \
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[list [mc "LOCAL:\n"] d======= \
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[list ":1:$current_diff_path" ":2:$current_diff_path"]]
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lappend current_diff_queue \
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[list [mc "REMOTE:\n"] d======= \
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[list ":1:$current_diff_path" ":3:$current_diff_path"]]
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} else {
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start_show_diff $cont_info
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return
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}
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advance_diff_queue $cont_info
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}
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proc advance_diff_queue {cont_info} {
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global current_diff_queue ui_diff
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set item [lindex $current_diff_queue 0]
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set current_diff_queue [lrange $current_diff_queue 1 end]
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$ui_diff conf -state normal
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$ui_diff insert end [lindex $item 0] [lindex $item 1]
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$ui_diff conf -state disabled
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start_show_diff $cont_info [lindex $item 2]
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}
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proc show_other_diff {path w m cont_info} {
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global file_states file_lists
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global is_3way_diff diff_active repo_config
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global ui_diff ui_index ui_workdir
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global current_diff_path current_diff_side current_diff_header
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# - Git won't give us the diff, there's nothing to compare to!
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#
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if {$m eq {_O}} {
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set max_sz 100000
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set type unknown
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if {[catch {
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set type [file type $path]
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switch -- $type {
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directory {
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set type submodule
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set content {}
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set sz 0
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}
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link {
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set content [file readlink $path]
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set sz [string length $content]
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}
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file {
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set fd [open $path r]
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fconfigure $fd \
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-eofchar {} \
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-encoding [get_path_encoding $path]
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set content [read $fd $max_sz]
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close $fd
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set sz [file size $path]
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}
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default {
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error "'$type' not supported"
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}
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}
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} err ]} {
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set diff_active 0
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unlock_index
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ui_status [mc "Unable to display %s" [escape_path $path]]
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error_popup [strcat [mc "Error loading file:"] "\n\n$err"]
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return
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}
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$ui_diff conf -state normal
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if {$type eq {submodule}} {
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$ui_diff insert end [append \
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"* " \
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[mc "Git Repository (subproject)"] \
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"\n"] d_@
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} elseif {![catch {set type [exec file $path]}]} {
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set n [string length $path]
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if {[string equal -length $n $path $type]} {
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set type [string range $type $n end]
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regsub {^:?\s*} $type {} type
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}
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$ui_diff insert end "* $type\n" d_@
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}
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if {[string first "\0" $content] != -1} {
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$ui_diff insert end \
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[mc "* Binary file (not showing content)."] \
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d_@
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} else {
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if {$sz > $max_sz} {
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$ui_diff insert end [mc \
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"* Untracked file is %d bytes.
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* Showing only first %d bytes.
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" $sz $max_sz] d_@
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}
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$ui_diff insert end $content
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if {$sz > $max_sz} {
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$ui_diff insert end [mc "
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* Untracked file clipped here by %s.
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* To see the entire file, use an external editor.
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" [appname]] d_@
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}
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}
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$ui_diff conf -state disabled
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set diff_active 0
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unlock_index
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set scroll_pos [lindex $cont_info 0]
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if {$scroll_pos ne {}} {
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update
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$ui_diff yview moveto $scroll_pos
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}
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ui_ready
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set callback [lindex $cont_info 1]
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if {$callback ne {}} {
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eval $callback
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}
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return
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}
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}
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proc start_show_diff {cont_info {add_opts {}}} {
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global file_states file_lists
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global is_3way_diff is_submodule_diff diff_active repo_config
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global ui_diff ui_index ui_workdir
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global current_diff_path current_diff_side current_diff_header
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set path $current_diff_path
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set w $current_diff_side
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set s $file_states($path)
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set m [lindex $s 0]
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set is_3way_diff 0
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set is_submodule_diff 0
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set diff_active 1
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set current_diff_header {}
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set cmd [list]
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if {$w eq $ui_index} {
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lappend cmd diff-index
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lappend cmd --cached
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} elseif {$w eq $ui_workdir} {
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if {[string first {U} $m] >= 0} {
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lappend cmd diff
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} else {
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lappend cmd diff-files
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}
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}
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if {[string match {160000 *} [lindex $s 2]]
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|| [string match {160000 *} [lindex $s 3]]} {
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set is_submodule_diff 1
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if {[git-version >= "1.6.6"]} {
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lappend cmd --submodule
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}
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}
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lappend cmd -p
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lappend cmd --no-color
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if {$repo_config(gui.diffcontext) >= 1} {
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lappend cmd "-U$repo_config(gui.diffcontext)"
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}
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if {$w eq $ui_index} {
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lappend cmd [PARENT]
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}
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if {$add_opts ne {}} {
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eval lappend cmd $add_opts
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} else {
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lappend cmd --
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lappend cmd $path
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}
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if {$is_submodule_diff && [git-version < "1.6.6"]} {
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if {$w eq $ui_index} {
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set cmd [list submodule summary --cached -- $path]
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} else {
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set cmd [list submodule summary --files -- $path]
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}
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}
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if {[catch {set fd [eval git_read --nice $cmd]} err]} {
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set diff_active 0
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unlock_index
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ui_status [mc "Unable to display %s" [escape_path $path]]
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error_popup [strcat [mc "Error loading diff:"] "\n\n$err"]
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return
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}
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set ::current_diff_inheader 1
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fconfigure $fd \
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-blocking 0 \
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-encoding [get_path_encoding $path] \
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-translation lf
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fileevent $fd readable [list read_diff $fd $cont_info]
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}
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proc read_diff {fd cont_info} {
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global ui_diff diff_active is_submodule_diff
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global is_3way_diff is_conflict_diff current_diff_header
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global current_diff_queue
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global diff_empty_count
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$ui_diff conf -state normal
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while {[gets $fd line] >= 0} {
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# -- Cleanup uninteresting diff header lines.
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#
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if {$::current_diff_inheader} {
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if { [string match {diff --git *} $line]
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|| [string match {diff --cc *} $line]
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|| [string match {diff --combined *} $line]
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|| [string match {--- *} $line]
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|| [string match {+++ *} $line]} {
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append current_diff_header $line "\n"
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continue
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}
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}
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if {[string match {index *} $line]} continue
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if {$line eq {deleted file mode 120000}} {
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set line "deleted symlink"
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}
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set ::current_diff_inheader 0
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# -- Automatically detect if this is a 3 way diff.
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#
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if {[string match {@@@ *} $line]} {set is_3way_diff 1}
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if {[string match {mode *} $line]
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|| [string match {new file *} $line]
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|| [regexp {^(old|new) mode *} $line]
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|| [string match {deleted file *} $line]
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|| [string match {deleted symlink} $line]
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|| [string match {Binary files * and * differ} $line]
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|| $line eq {\ No newline at end of file}
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|| [regexp {^\* Unmerged path } $line]} {
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set tags {}
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} elseif {$is_3way_diff} {
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set op [string range $line 0 1]
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switch -- $op {
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{ } {set tags {}}
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{@@} {set tags d_@}
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{ +} {set tags d_s+}
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{ -} {set tags d_s-}
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{+ } {set tags d_+s}
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{- } {set tags d_-s}
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{--} {set tags d_--}
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{++} {
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if {[regexp {^\+\+([<>]{7} |={7})} $line _g op]} {
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set is_conflict_diff 1
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set line [string replace $line 0 1 { }]
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set tags d$op
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} else {
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set tags d_++
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}
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}
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default {
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puts "error: Unhandled 3 way diff marker: {$op}"
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set tags {}
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}
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}
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} elseif {$is_submodule_diff} {
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if {$line == ""} continue
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if {[regexp {^Submodule } $line]} {
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set tags d_@
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} elseif {[regexp {^\* } $line]} {
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set line [string replace $line 0 1 {Submodule }]
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set tags d_@
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} else {
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set op [string range $line 0 2]
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switch -- $op {
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{ <} {set tags d_-}
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{ >} {set tags d_+}
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{ W} {set tags {}}
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default {
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puts "error: Unhandled submodule diff marker: {$op}"
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set tags {}
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}
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}
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}
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} else {
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set op [string index $line 0]
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switch -- $op {
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{ } {set tags {}}
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{@} {set tags d_@}
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{-} {set tags d_-}
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{+} {
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if {[regexp {^\+([<>]{7} |={7})} $line _g op]} {
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set is_conflict_diff 1
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set tags d$op
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} else {
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set tags d_+
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}
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}
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default {
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puts "error: Unhandled 2 way diff marker: {$op}"
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set tags {}
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}
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}
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}
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$ui_diff insert end $line $tags
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if {[string index $line end] eq "\r"} {
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$ui_diff tag add d_cr {end - 2c}
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}
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$ui_diff insert end "\n" $tags
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}
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$ui_diff conf -state disabled
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if {[eof $fd]} {
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close $fd
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if {$current_diff_queue ne {}} {
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advance_diff_queue $cont_info
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return
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}
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set diff_active 0
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unlock_index
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set scroll_pos [lindex $cont_info 0]
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if {$scroll_pos ne {}} {
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update
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$ui_diff yview moveto $scroll_pos
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}
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ui_ready
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if {[$ui_diff index end] eq {2.0}} {
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handle_empty_diff
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} else {
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set diff_empty_count 0
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}
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set callback [lindex $cont_info 1]
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if {$callback ne {}} {
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eval $callback
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}
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}
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}
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proc apply_hunk {x y} {
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global current_diff_path current_diff_header current_diff_side
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global ui_diff ui_index file_states
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if {$current_diff_path eq {} || $current_diff_header eq {}} return
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if {![lock_index apply_hunk]} return
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set apply_cmd {apply --cached --whitespace=nowarn}
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set mi [lindex $file_states($current_diff_path) 0]
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if {$current_diff_side eq $ui_index} {
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set failed_msg [mc "Failed to unstage selected hunk."]
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lappend apply_cmd --reverse
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if {[string index $mi 0] ne {M}} {
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unlock_index
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return
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}
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} else {
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set failed_msg [mc "Failed to stage selected hunk."]
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if {[string index $mi 1] ne {M}} {
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unlock_index
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return
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}
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}
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set s_lno [lindex [split [$ui_diff index @$x,$y] .] 0]
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set s_lno [$ui_diff search -backwards -regexp ^@@ $s_lno.0 0.0]
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if {$s_lno eq {}} {
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unlock_index
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return
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}
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set e_lno [$ui_diff search -forwards -regexp ^@@ "$s_lno + 1 lines" end]
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if {$e_lno eq {}} {
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set e_lno end
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}
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if {[catch {
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set enc [get_path_encoding $current_diff_path]
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set p [eval git_write $apply_cmd]
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fconfigure $p -translation binary -encoding $enc
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puts -nonewline $p $current_diff_header
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puts -nonewline $p [$ui_diff get $s_lno $e_lno]
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close $p} err]} {
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error_popup [append $failed_msg "\n\n$err"]
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unlock_index
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return
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}
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$ui_diff conf -state normal
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$ui_diff delete $s_lno $e_lno
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$ui_diff conf -state disabled
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if {[$ui_diff get 1.0 end] eq "\n"} {
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set o _
|
|
} else {
|
|
set o ?
|
|
}
|
|
|
|
if {$current_diff_side eq $ui_index} {
|
|
set mi ${o}M
|
|
} elseif {[string index $mi 0] eq {_}} {
|
|
set mi M$o
|
|
} else {
|
|
set mi ?$o
|
|
}
|
|
unlock_index
|
|
display_file $current_diff_path $mi
|
|
# This should trigger shift to the next changed file
|
|
if {$o eq {_}} {
|
|
reshow_diff
|
|
}
|
|
}
|
|
|
|
proc apply_range_or_line {x y} {
|
|
global current_diff_path current_diff_header current_diff_side
|
|
global ui_diff ui_index file_states
|
|
|
|
set selected [$ui_diff tag nextrange sel 0.0]
|
|
|
|
if {$selected == {}} {
|
|
set first [$ui_diff index "@$x,$y"]
|
|
set last $first
|
|
} else {
|
|
set first [lindex $selected 0]
|
|
set last [lindex $selected 1]
|
|
}
|
|
|
|
set first_l [$ui_diff index "$first linestart"]
|
|
set last_l [$ui_diff index "$last lineend"]
|
|
|
|
if {$current_diff_path eq {} || $current_diff_header eq {}} return
|
|
if {![lock_index apply_hunk]} return
|
|
|
|
set apply_cmd {apply --cached --whitespace=nowarn}
|
|
set mi [lindex $file_states($current_diff_path) 0]
|
|
if {$current_diff_side eq $ui_index} {
|
|
set failed_msg [mc "Failed to unstage selected line."]
|
|
set to_context {+}
|
|
lappend apply_cmd --reverse
|
|
if {[string index $mi 0] ne {M}} {
|
|
unlock_index
|
|
return
|
|
}
|
|
} else {
|
|
set failed_msg [mc "Failed to stage selected line."]
|
|
set to_context {-}
|
|
if {[string index $mi 1] ne {M}} {
|
|
unlock_index
|
|
return
|
|
}
|
|
}
|
|
|
|
set wholepatch {}
|
|
|
|
while {$first_l < $last_l} {
|
|
set i_l [$ui_diff search -backwards -regexp ^@@ $first_l 0.0]
|
|
if {$i_l eq {}} {
|
|
# If there's not a @@ above, then the selected range
|
|
# must have come before the first_l @@
|
|
set i_l [$ui_diff search -regexp ^@@ $first_l $last_l]
|
|
}
|
|
if {$i_l eq {}} {
|
|
unlock_index
|
|
return
|
|
}
|
|
# $i_l is now at the beginning of a line
|
|
|
|
# pick start line number from hunk header
|
|
set hh [$ui_diff get $i_l "$i_l + 1 lines"]
|
|
set hh [lindex [split $hh ,] 0]
|
|
set hln [lindex [split $hh -] 1]
|
|
|
|
# There is a special situation to take care of. Consider this
|
|
# hunk:
|
|
#
|
|
# @@ -10,4 +10,4 @@
|
|
# context before
|
|
# -old 1
|
|
# -old 2
|
|
# +new 1
|
|
# +new 2
|
|
# context after
|
|
#
|
|
# We used to keep the context lines in the order they appear in
|
|
# the hunk. But then it is not possible to correctly stage only
|
|
# "-old 1" and "+new 1" - it would result in this staged text:
|
|
#
|
|
# context before
|
|
# old 2
|
|
# new 1
|
|
# context after
|
|
#
|
|
# (By symmetry it is not possible to *un*stage "old 2" and "new
|
|
# 2".)
|
|
#
|
|
# We resolve the problem by introducing an asymmetry, namely,
|
|
# when a "+" line is *staged*, it is moved in front of the
|
|
# context lines that are generated from the "-" lines that are
|
|
# immediately before the "+" block. That is, we construct this
|
|
# patch:
|
|
#
|
|
# @@ -10,4 +10,5 @@
|
|
# context before
|
|
# +new 1
|
|
# old 1
|
|
# old 2
|
|
# context after
|
|
#
|
|
# But we do *not* treat "-" lines that are *un*staged in a
|
|
# special way.
|
|
#
|
|
# With this asymmetry it is possible to stage the change "old
|
|
# 1" -> "new 1" directly, and to stage the change "old 2" ->
|
|
# "new 2" by first staging the entire hunk and then unstaging
|
|
# the change "old 1" -> "new 1".
|
|
#
|
|
# Applying multiple lines adds complexity to the special
|
|
# situation. The pre_context must be moved after the entire
|
|
# first block of consecutive staged "+" lines, so that
|
|
# staging both additions gives the following patch:
|
|
#
|
|
# @@ -10,4 +10,6 @@
|
|
# context before
|
|
# +new 1
|
|
# +new 2
|
|
# old 1
|
|
# old 2
|
|
# context after
|
|
|
|
# This is non-empty if and only if we are _staging_ changes;
|
|
# then it accumulates the consecutive "-" lines (after
|
|
# converting them to context lines) in order to be moved after
|
|
# "+" change lines.
|
|
set pre_context {}
|
|
|
|
set n 0
|
|
set m 0
|
|
set i_l [$ui_diff index "$i_l + 1 lines"]
|
|
set patch {}
|
|
while {[$ui_diff compare $i_l < "end - 1 chars"] &&
|
|
[$ui_diff get $i_l "$i_l + 2 chars"] ne {@@}} {
|
|
set next_l [$ui_diff index "$i_l + 1 lines"]
|
|
set c1 [$ui_diff get $i_l]
|
|
if {[$ui_diff compare $first_l <= $i_l] &&
|
|
[$ui_diff compare $i_l < $last_l] &&
|
|
($c1 eq {-} || $c1 eq {+})} {
|
|
# a line to stage/unstage
|
|
set ln [$ui_diff get $i_l $next_l]
|
|
if {$c1 eq {-}} {
|
|
set n [expr $n+1]
|
|
set patch "$patch$pre_context$ln"
|
|
set pre_context {}
|
|
} else {
|
|
set m [expr $m+1]
|
|
set patch "$patch$ln"
|
|
}
|
|
} elseif {$c1 ne {-} && $c1 ne {+}} {
|
|
# context line
|
|
set ln [$ui_diff get $i_l $next_l]
|
|
set patch "$patch$pre_context$ln"
|
|
set n [expr $n+1]
|
|
set m [expr $m+1]
|
|
set pre_context {}
|
|
} elseif {$c1 eq $to_context} {
|
|
# turn change line into context line
|
|
set ln [$ui_diff get "$i_l + 1 chars" $next_l]
|
|
if {$c1 eq {-}} {
|
|
set pre_context "$pre_context $ln"
|
|
} else {
|
|
set patch "$patch $ln"
|
|
}
|
|
set n [expr $n+1]
|
|
set m [expr $m+1]
|
|
} else {
|
|
# a change in the opposite direction of
|
|
# to_context which is outside the range of
|
|
# lines to apply.
|
|
set patch "$patch$pre_context"
|
|
set pre_context {}
|
|
}
|
|
set i_l $next_l
|
|
}
|
|
set patch "$patch$pre_context"
|
|
set wholepatch "$wholepatch@@ -$hln,$n +$hln,$m @@\n$patch"
|
|
set first_l [$ui_diff index "$next_l + 1 lines"]
|
|
}
|
|
|
|
if {[catch {
|
|
set enc [get_path_encoding $current_diff_path]
|
|
set p [eval git_write $apply_cmd]
|
|
fconfigure $p -translation binary -encoding $enc
|
|
puts -nonewline $p $current_diff_header
|
|
puts -nonewline $p $wholepatch
|
|
close $p} err]} {
|
|
error_popup [append $failed_msg "\n\n$err"]
|
|
}
|
|
|
|
unlock_index
|
|
}
|