File: diff-remove-file-ids

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#! /usr/bin/env bash
#
# A diff canonifier that removes all file IDs from files.log

awk '
BEGIN {
    FS="\t";
    OFS="\t";
    process = 0;
    }

$1 == "#path" && $2 == "files" {
    process = 1;
    }

/^[^#]/ {
    if ( process && column1 > 0 && column2 > 0 ) {
        $column1 = "XXXXXXXXXXX";
        $column2 = "XXXXXXXXXXX";
        }
    }

/^#fields/ {
    for ( i = 2; i <= NF; ++i ) {
        if ( $i == "fuid" )
            column1 = i - 1;

        if ( $i == "parent_fuid" )
            column2 = i - 1;
        }
    }

{ print }
'