Eskil

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Annotate Patch Side-by-side Diff

Differences From Artifact [a68026708f]:

To Artifact [74862ea90e]:

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    set leftLine 1
    set rightLine 1
    set leftLines {}
    set rightLines {}
    set state none
    set fname ""
    foreach line [split $data \n] {
        # Detect a new file
        if {[string match ======* $line] || [string match "diff *" $line]} {
        # Detect a new file or file name
        # "diff *" handles at least GIT and HG output
        # "Index:" and "=====*" handles at least FOSSIL and SVN output
        set newFile 0
        set newName ""
        if {[string match ======* $line]} {
            set newFile 1
        } elseif {[string match "diff *" $line]} {
            set newFile 1
            # Extract the last non-space. Works reasonably well.
            regexp {\S+\s*$} $line newName
        } elseif {[string match "Index: *" $line]} {
            set newName [string range $line 7 end]
        }

        if {$newFile} {
            if {$state != "none"} {
                displayOnePatch $top $leftLines $rightLines $leftLine $rightLine
            }
            set leftLines {}
            set rightLines {}
            set state none
            continue
        }
        # Detect a file name
        if {$newName ne ""} {
        if {[string match "Index: *" $line]} {
            # If fname is set, a file that had no contents has passed.
            # It could be a binary file or some other that the diffing source
            # could not handle.
            # Display the name to see that it is involved. 
            if {$fname ne ""} {
                foreach side {1 2} {
                    emptyLine $top $side
                    insertLine $top $side "" $divider patch
                    insertLine $top $side "" $fname   patch
                    insertLine $top $side "" $divider patch
                }
                addChange $top 4 change 0 0 0 0
            }
            set fname [string range $line 7 end]
            set fname $newName
            # Collect the files seen. Used by revision control for commit.
            if {[file isfile $fname]} {
                lappend ::eskil($top,patchFilelist) $fname
            }
        }
        if {$newFile || $newName ne ""} {
            continue
        }
        # Detect the first line in a -c style diff
        if {[regexp {^\*\*\* } $line]} {
            if {$state eq "right"} {
                displayOnePatch $top $leftLines $rightLines $leftLine $rightLine
                set leftLines {}
                set rightLines {}
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            emptyLine $top $side
            insertLine $top $side "" $divider patch
            insertLine $top $side "" $fname   patch
            insertLine $top $side "" $divider patch
        }
        addChange $top 4 change 0 0 0 0
    }

    # Cleanup detected files
    set ::eskil($top,patchFilelist) [lsort -dictionary -unique \
                                             $::eskil($top,patchFilelist)]
}

#####################################
# Main diff
#####################################

# Prepare for a diff by creating needed temporary files
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