[PATCH v2 2/7] gitk: refactor per-line part of getblobdiffline and its support
- From
Thomas Rast <tr@thomasrast.ch>
- Date
- Oct 29, 2013, 07:20 UTC
- Message-ID
- <584093ef3fafbae8dfb9b99d7d9a146fb3939619.1383031141.git.tr@thomasrast.ch>
- In-Reply-To
- <21f40508f83a9407986d29f002adf5ad366c8b88.1382287779.git.trast@inf.ethz.ch>
From: Thomas Rast <trast@inf.ethz.ch>
For later use with data sources other than a pipe, refactor the big worker part of getblobdiffline to a separate function parseblobdiffline. Also refactor its initialization and wrap-up to separate routines.
Signed-off-by: Thomas Rast <trast@inf.ethz.ch> --- gitk-git/gitk | 408 ++++++++++++++++++++++++++++++---------------------------- 1 file changed, 213 insertions(+), 195 deletions(-)
diff --git a/gitk-git/gitk b/gitk-git/gitk index 0e95814..11e988e 100755 --- a/gitk-git/gitk +++ b/gitk-git/gitk @@ -7710,15 +7710,25 @@ proc changeworddiff {name ix op} { reselectline } +proc initblobdiffvars {} { + global diffencoding targetline diffnparents + global diffinhdr currdiffsubmod diffseehere + set targetline {} + set diffnparents 0 + set diffinhdr 0 + set diffencoding [get_path_encoding {}] + set currdiffsubmod "" + set diffseehere -1 +} + proc getblobdiffs {ids} { global blobdifffd diffids env - global diffinhdr treediffs + global treediffs global diffcontext global ignorespace global worddiff global limitdiffs vfilelimit curview - global diffencoding targetline diffnparents - global git_version currdiffsubmod + global git_version set textconv {} if {[package vcompare $git_version "1.6.1"] >= 0} { @@ -7742,13 +7752,9 @@ proc getblobdiffs {ids} { error_popup [mc "Error getting diffs: %s" $err] return } - set targetline {} - set diffnparents 0 - set diffinhdr 0 - set diffencoding [get_path_encoding {}] fconfigure $bdf -blocking 0 -encoding binary -eofchar {} set blobdifffd($ids) $bdf - set currdiffsubmod "" + initblobdiffvars filerun $bdf [list getblobdiffline $bdf $diffids] } @@ -7814,13 +7820,17 @@ proc makediffhdr {fname ids} { set diffline 0 } +proc blobdiffmaybeseehere {ateof} { + global diffseehere + if {$diffseehere >= 0} { + mark_ctext_line [lindex [split $diffseehere .] 0] + } + maybe_scroll_ctext ateof +} + proc getblobdiffline {bdf ids} { - global diffids blobdifffd ctext curdiffstart - global diffnexthead diffnextnote difffilestart - global ctext_file_names ctext_file_lines - global diffinhdr treediffs mergemax diffnparents - global diffencoding jump_to_here targetline diffline currdiffsubmod - global worddiff + global diffids blobdifffd + global ctext set nr 0 $ctext conf -state normal @@ -7829,212 +7839,220 @@ proc getblobdiffline {bdf ids} { catch {close $bdf} return 0 } - if {![string compare -length 5 "diff " $line]} { - if {![regexp {^diff (--cc|--git) } $line m type]} { - set line [encoding convertfrom $line] - $ctext insert end "$line\n" hunksep - continue + parseblobdiffline $ids $line + } + $ctext conf -state disabled + blobdiffmaybeseehere [eof $bdf] + if {[eof $bdf]} { + catch {close $bdf} + return 0 + } + return [expr {$nr >= 1000? 2: 1}] +} + +proc parseblobdiffline {ids line} { + global ctext curdiffstart + global diffnexthead diffnextnote difffilestart + global ctext_file_names ctext_file_lines + global diffinhdr treediffs mergemax diffnparents + global diffencoding jump_to_here targetline diffline currdiffsubmod + global worddiff diffseehere + + if {![string compare -length 5 "diff " $line]} { + if {![regexp {^diff (--cc|--git) } $line m type]} { + set line [encoding convertfrom $line] + $ctext insert end "$line\n" hunksep + continue + } + # start of a new file + set diffinhdr 1 + $ctext insert end "\n" + set curdiffstart [$ctext index "end - 1c"] + lappend ctext_file_names "" + lappend ctext_file_lines [lindex [split $curdiffstart "."] 0] + $ctext insert end "\n" filesep + + if {$type eq "--cc"} { + # start of a new file in a merge diff + set fname [string range $line 10 end] + if {[lsearch -exact $treediffs($ids) $fname] < 0} { + lappend treediffs($ids) $fname + add_flist [list $fname] } - # start of a new file - set diffinhdr 1 - $ctext insert end "\n" - set curdiffstart [$ctext index "end - 1c"] - lappend ctext_file_names "" - lappend ctext_file_lines [lindex [split $curdiffstart "."] 0] - $ctext insert end "\n" filesep - - if {$type eq "--cc"} { - # start of a new file in a merge diff - set fname [string range $line 10 end] - if {[lsearch -exact $treediffs($ids) $fname] < 0} { - lappend treediffs($ids) $fname - add_flist [list $fname] - } + } else { + set line [string range $line 11 end] + # If the name hasn't changed the length will be odd, + # the middle char will be a space, and the two bits either + # side will be a/name and b/name, or "a/name" and "b/name". + # If the name has changed we'll get "rename from" and + # "rename to" or "copy from" and "copy to" lines following + # this, and we'll use them to get the filenames. + # This complexity is necessary because spaces in the + # filename(s) don't get escaped. + set l [string length $line] + set i [expr {$l / 2}] + if {!(($l & 1) && [string index $line $i] eq " " && + [string range $line 2 [expr {$i - 1}]] eq \ + [string range $line [expr {$i + 3}] end])} { + return + } + # unescape if quoted and chop off the a/ from the front + if {[string index $line 0] eq "\""} { + set fname [string range [lindex $line 0] 2 end] } else { - set line [string range $line 11 end] - # If the name hasn't changed the length will be odd, - # the middle char will be a space, and the two bits either - # side will be a/name and b/name, or "a/name" and "b/name". - # If the name has changed we'll get "rename from" and - # "rename to" or "copy from" and "copy to" lines following - # this, and we'll use them to get the filenames. - # This complexity is necessary because spaces in the - # filename(s) don't get escaped. - set l [string length $line] - set i [expr {$l / 2}] - if {!(($l & 1) && [string index $line $i] eq " " && - [string range $line 2 [expr {$i - 1}]] eq \ - [string range $line [expr {$i + 3}] end])} { - continue - } - # unescape if quoted and chop off the a/ from the front - if {[string index $line 0] eq "\""} { - set fname [string range [lindex $line 0] 2 end] - } else { - set fname [string range $line 2 [expr {$i - 1}]] - } + set fname [string range $line 2 [expr {$i - 1}]] } - makediffhdr $fname $ids + } + makediffhdr $fname $ids - } elseif {![string compare -length 16 "* Unmerged path " $line]} { - set fname [encoding convertfrom [string range $line 16 end]] - $ctext insert end "\n" - set curdiffstart [$ctext index "end - 1c"] - lappend ctext_file_names $fname - lappend ctext_file_lines [lindex [split $curdiffstart "."] 0] + } elseif {![string compare -length 16 "* Unmerged path " $line]} { + set fname [encoding convertfrom [string range $line 16 end]] + $ctext insert end "\n" + set curdiffstart [$ctext index "end - 1c"] + lappend ctext_file_names $fname + lappend ctext_file_lines [lindex [split $curdiffstart "."] 0] + $ctext insert end "$line\n" filesep + set i [lsearch -exact $treediffs($ids) $fname] + if {$i >= 0} { + setinlist difffilestart $i $curdiffstart + } + + } elseif {![string compare -length 2 "@@" $line]} { + regexp {^@@+} $line ats + set line [encoding convertfrom $diffencoding $line] + $ctext insert end "$line\n" hunksep + if {[regexp { \+(\d+),\d+ @@} $line m nl]} { + set diffline $nl + } + set diffnparents [expr {[string length $ats] - 1}] + set diffinhdr 0 + + } elseif {![string compare -length 10 "Submodule " $line]} { + # start of a new submodule + if {[regexp -indices "\[0-9a-f\]+\\.\\." $line nameend]} { + set fname [string range $line 10 [expr [lindex $nameend 0] - 2]] + } else { + set fname [string range $line 10 [expr [string first "contains " $line] - 2]] + } + if {$currdiffsubmod != $fname} { + $ctext insert end "\n"; # Add newline after commit message + } + set curdiffstart [$ctext index "end - 1c"] + lappend ctext_file_names "" + if {$currdiffsubmod != $fname} { + lappend ctext_file_lines $fname + makediffhdr $fname $ids + set currdiffsubmod $fname + $ctext insert end "\n$line\n" filesep + } else { $ctext insert end "$line\n" filesep + } + } elseif {![string compare -length 3 " >" $line]} { + set $currdiffsubmod "" + set line [encoding convertfrom $diffencoding $line] + $ctext insert end "$line\n" dresult + } elseif {![string compare -length 3 " <" $line]} { + set $currdiffsubmod "" + set line [encoding convertfrom $diffencoding $line] + $ctext insert end "$line\n" d0 + } elseif {$diffinhdr} { + if {![string compare -length 12 "rename from " $line]} { + set fname [string range $line [expr 6 + [string first " from " $line] ] end] + if {[string index $fname 0] eq "\""} { + set fname [lindex $fname 0] + } + set fname [encoding convertfrom $fname] set i [lsearch -exact $treediffs($ids) $fname] if {$i >= 0} { setinlist difffilestart $i $curdiffstart } - - } elseif {![string compare -length 2 "@@" $line]} { - regexp {^@@+} $line ats - set line [encoding convertfrom $diffencoding $line] - $ctext insert end "$line\n" hunksep - if {[regexp { \+(\d+),\d+ @@} $line m nl]} { - set diffline $nl + } elseif {![string compare -length 10 $line "rename to "] || + ![string compare -length 8 $line "copy to "]} { + set fname [string range $line [expr 4 + [string first " to " $line] ] end] + if {[string index $fname 0] eq "\""} { + set fname [lindex $fname 0] } - set diffnparents [expr {[string length $ats] - 1}] + makediffhdr $fname $ids + } elseif {[string compare -length 3 $line "---"] == 0} { + # do nothing + return + } elseif {[string compare -length 3 $line "+++"] == 0} { set diffinhdr 0 + return + } + $ctext insert end "$line\n" filesep - } elseif {![string compare -length 10 "Submodule " $line]} { - # start of a new submodule - if {[regexp -indices "\[0-9a-f\]+\\.\\." $line nameend]} { - set fname [string range $line 10 [expr [lindex $nameend 0] - 2]] - } else { - set fname [string range $line 10 [expr [string first "contains " $line] - 2]] - } - if {$currdiffsubmod != $fname} { - $ctext insert end "\n"; # Add newline after commit message - } - set curdiffstart [$ctext index "end - 1c"] - lappend ctext_file_names "" - if {$currdiffsubmod != $fname} { - lappend ctext_file_lines $fname - makediffhdr $fname $ids - set currdiffsubmod $fname - $ctext insert end "\n$line\n" filesep - } else { - $ctext insert end "$line\n" filesep - } - } elseif {![string compare -length 3 " >" $line]} { - set $currdiffsubmod "" - set line [encoding convertfrom $diffencoding $line] - $ctext insert end "$line\n" dresult - } elseif {![string compare -length 3 " <" $line]} { - set $currdiffsubmod "" - set line [encoding convertfrom $diffencoding $line] - $ctext insert end "$line\n" d0 - } elseif {$diffinhdr} { - if {![string compare -length 12 "rename from " $line]} { - set fname [string range $line [expr 6 + [string first " from " $line] ] end] - if {[string index $fname 0] eq "\""} { - set fname [lindex $fname 0] - } - set fname [encoding convertfrom $fname] - set i [lsearch -exact $treediffs($ids) $fname] - if {$i >= 0} { - setinlist difffilestart $i $curdiffstart + } else { + set line [string map {\x1A ^Z} \ + [encoding convertfrom $diffencoding $line]] + # parse the prefix - one ' ', '-' or '+' for each parent + set prefix [string range $line 0 [expr {$diffnparents - 1}]] + set tag [expr {$diffnparents > 1? "m": "d"}] + set dowords [expr {$worddiff ne [mc "Line diff"] && $diffnparents == 1}] + set words_pre_markup "" + set words_post_markup "" + if {[string trim $prefix " -+"] eq {}} { + # prefix only has " ", "-" and "+" in it: normal diff line + set num [string first "-" $prefix] + if {$dowords} { + set line [string range $line 1 end] + } + if {$num >= 0} { + # removed line, first parent with line is $num + if {$num >= $mergemax} { + set num "max" } - } elseif {![string compare -length 10 $line "rename to "] || - ![string compare -length 8 $line "copy to "]} { - set fname [string range $line [expr 4 + [string first " to " $line] ] end] - if {[string index $fname 0] eq "\""} { - set fname [lindex $fname 0] + if {$dowords && $worddiff eq [mc "Markup words"]} { + $ctext insert end "\[-$line-\]" $tag$num + } else { + $ctext insert end "$line" $tag$num } - makediffhdr $fname $ids - } elseif {[string compare -length 3 $line "---"] == 0} { - # do nothing - continue - } elseif {[string compare -length 3 $line "+++"] == 0} { - set diffinhdr 0 - continue - } - $ctext insert end "$line\n" filesep - - } else { - set line [string map {\x1A ^Z} \ - [encoding convertfrom $diffencoding $line]] - # parse the prefix - one ' ', '-' or '+' for each parent - set prefix [string range $line 0 [expr {$diffnparents - 1}]] - set tag [expr {$diffnparents > 1? "m": "d"}] - set dowords [expr {$worddiff ne [mc "Line diff"] && $diffnparents == 1}] - set words_pre_markup "" - set words_post_markup "" - if {[string trim $prefix " -+"] eq {}} { - # prefix only has " ", "-" and "+" in it: normal diff line - set num [string first "-" $prefix] - if {$dowords} { - set line [string range $line 1 end] + if {!$dowords} { + $ctext insert end "\n" $tag$num } - if {$num >= 0} { - # removed line, first parent with line is $num - if {$num >= $mergemax} { - set num "max" - } - if {$dowords && $worddiff eq [mc "Markup words"]} { - $ctext insert end "\[-$line-\]" $tag$num - } else { - $ctext insert end "$line" $tag$num - } - if {!$dowords} { - $ctext insert end "\n" $tag$num - } - } else { - set tags {} - if {[string first "+" $prefix] >= 0} { - # added line - lappend tags ${tag}result - if {$diffnparents > 1} { - set num [string first " " $prefix] - if {$num >= 0} { - if {$num >= $mergemax} { - set num "max" - } - lappend tags m$num + } else { + set tags {} + if {[string first "+" $prefix] >= 0} { + # added line + lappend tags ${tag}result + if {$diffnparents > 1} { + set num [string first " " $prefix] + if {$num >= 0} { + if {$num >= $mergemax} { + set num "max" } + lappend tags m$num } - set words_pre_markup "{+" - set words_post_markup "+}" } - if {$targetline ne {}} { - if {$diffline == $targetline} { - set seehere [$ctext index "end - 1 chars"] - set targetline {} - } else { - incr diffline - } - } - if {$dowords && $worddiff eq [mc "Markup words"]} { - $ctext insert end "$words_pre_markup$line$words_post_markup" $tags + set words_pre_markup "{+" + set words_post_markup "+}" + } + if {$targetline ne {}} { + if {$diffline == $targetline} { + set diffseehere [$ctext index "end - 1 chars"] + set targetline {} } else { - $ctext insert end "$line" $tags - } - if {!$dowords} { - $ctext insert end "\n" $tags + incr diffline } } - } elseif {$dowords && $prefix eq "~"} { - $ctext insert end "\n" {} - } else { - # "\ No newline at end of file", - # or something else we don't recognize - $ctext insert end "$line\n" hunksep + if {$dowords && $worddiff eq [mc "Markup words"]} { + $ctext insert end "$words_pre_markup$line$words_post_markup" $tags + } else { + $ctext insert end "$line" $tags + } + if {!$dowords} { + $ctext insert end "\n" $tags + } } + } elseif {$dowords && $prefix eq "~"} { + $ctext insert end "\n" {} + } else { + # "\ No newline at end of file", + # or something else we don't recognize + $ctext insert end "$line\n" hunksep } } - if {[info exists seehere]} { - mark_ctext_line [lindex [split $seehere .] 0] - } - maybe_scroll_ctext [eof $bdf] - $ctext conf -state disabled - if {[eof $bdf]} { - catch {close $bdf} - return 0 - } - return [expr {$nr >= 1000? 2: 1}] } proc changediffdisp {} {
-- 1.8.4.2.838.ga9a3e20