/usr/bin/jigdo-gen-md5-list is in jigit 1.19-1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 | #!/bin/sh
# Copyright (c) 2010, 2011 George Danchev <danchev@spnet.net>
# Copyright (c) 2010, 2011 Thomas Schmitt <scdbackup@gmx.net>
# This script is distributed according to the terms of the GNU GPL v2.
# This should be better rewritten in C at some future point. Ref: pwd code.
# Create a list of MD5sums encoded in hexidecimal format and print to standard output
# Format Description
# A line in the emerging file is to be composed as follows:
#
# The MD5 checksum of the file content must be encoded in 32 hex digits
# [0-9afAF]
#
# Next come two blanks.
#
# The byte size of the file content must be encoded in 12 decimal digits
# or blanks.
#
# Next come two blanks.
#
# The rest of the line up to the newline character is a semi-literal file
# address. Its basename has to be the same as the basename of the data file
# when it is used as one of the input files for the jigdo file generator.
# The semi-literal address and the address mapping define what will be
# listed as file address in the jigdo file.
# The address may bear at its start a literal text that shall be recognized by
# the address mapping (e.g. -jigdo-map) of the jigdo file generator.
# The rest of the address must be usable as file address in both situations:
# When the jigdo file gets generated, and when the jigdo file gets read
# to inflate the template file into the original payload image.
# The address mappings at both occasions can be used to adapt to a change
# of the absolute location of the listed files.
# Between both mappings, the parent directory is represented by a symbolic
# text, like "Debian:".
# A simple strategy to cope with this is to write absolute paths into the
# .md5 file, and to use matching absolute paths in the -jigdo-map
# directives. Keep in mind that mapping is purely literal. Symbolic links
# are neither resolved nor can they confuse the mapping.
set -e
SELF=jigdo-gen-md5-list
VER=0.1
OPT_ABSOLUTE=1
usage() {
cat << USAGE
usage: $SELF [option] DIR FILE ...
-a, --make-absolute make absolute paths, avoiding any symlinks (default)
-l, --keep-literal leave paths untouched, literally as supplied
-v, --version print version
-h, --help print help
-e, --examples print examples
USAGE
}
examples() {
cat << EXAMPLES
examples:
$SELF datadir datafile
$SELF --keep-literal datadir datafile
find . -type f | xargs $SELF
find . -exec $SELF '{}' ';'
EXAMPLES
}
md5list() {
item="$1"
if test $OPT_ABSOLUTE -eq 1; then
dn=`dirname "$item"` # dirname
fn=`basename "$item"` # filename
od=`pwd -P` # old dir
cd "$dn" || exit 1
item=`pwd -P`/"$fn" # absolute physical file path, avoiding all symlinks
cd "$od" || exit 1
fi
MD5=`md5sum "$item" | awk '{print $1}'`
SIZ=`/usr/bin/stat -c %s "$item"`
printf '%32s %12s %s\n' "$MD5" "$SIZ" "$item"
}
walkdir() {
DR="$1"
for item in `find "$DR" -type f`
do
md5list "$item"
done
}
# main()
if test "$1" = "" ; then
usage
exit 1
fi
case "$1" in
--make-absolute|-a)
OPT_ABSOLUTE=1;
shift;
;;
--keep-literal|-l)
OPT_ABSOLUTE=0;
shift;
;;
--version|-v)
printf '%s %s\n' "$SELF" "$VER"
exit 0
;;
--help|-h)
usage
exit 0
;;
--examples|-e)
examples
exit 0
# *)
# usage
# exit 1
# ;;
esac
for i in "$@"
do
if test -d "$i" ; then
DR="$i"
if test $OPT_ABSOLUTE -eq 1; then
od=`pwd -P` # old dir
cd "$DR" || exit 1
DR=`pwd -P` # absolute physical dir path, avoiding all symlinks
cd "$od" || exit 1
fi
walkdir "$DR"
elif test -f "$i" ; then
FL="$i"
md5list "$FL"
else
usage
exit 1
fi;
done
exit 0
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