author | Tero Marttila <terom@fixme.fi> |
Wed, 14 Dec 2011 01:10:04 +0200 | |
changeset 3 | 6f0d48ce9dfe |
parent 1 | 51b1db97f448 |
child 7 | ab661ceed4dc |
permissions | -rw-r--r-- |
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yay customized preseeds + functional pkvlm-create
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## library functions |
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function die () { |
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echo "!!! $@" >&2 |
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exit 1 |
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} |
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# Execute command verbosely, and exit on failure |
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function cmd () { |
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echo ">>> $@" |
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[ $_MOCK ] && return 0 |
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eval "$@" # return $? |
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} |
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function expand_MB () { |
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local size=${1^} |
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case ${size: -1} in |
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G) |
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size=$(( ${size%G} * 1024)) |
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|
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;; |
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esac |
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echo $size |
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} |
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function extract_iso () { |
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iso=$1 |
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dst=$2 |
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[ ! -r "$iso" ] && die "Given .iso is not readable: $iso" |
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[ -z "$dst" ] && die "Must give destination: $dst" |
51b1db97f448
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[ -e "$dst" ] && die "Given destination already exists: $dst" |
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# temporary mount |
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mnt=$(mktemp -d mnt.XXXX) |
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# clean on exit |
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function cleanup () { |
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if mountpoint -q $mnt; then |
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sudo umount $mnt |
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fi |
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[ -d $mnt ] && rmdir $mnt |
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|
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return $1 |
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} |
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# loop-mount |
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cmd sudo mount -o loop $iso $mnt || cleanup 1 |
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# copy |
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cmd cp -r $mnt $dst || cleanup 1 |
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# done, cleanup |
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cleanup 0 |
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} |
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function my_md5sum () { |
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/usr/bin/md5sum $1 | ( |
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read md5sum path |
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echo $md5sum |
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) |
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} |
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function expand_template () { |
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local tpl=$1 |
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local out=$2 |
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|
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local linecount=0 |
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# read in each line at a time |
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while IFS='' read -r line; do |
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linecount=$((linecount + 1)) |
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|
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if [ "${line:0:1}" == "#" ]; then |
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# ignore comments; pass through as-is |
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echo "$line" |
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|
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else |
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# evaluate {...} expressions |
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# a slight hack, but it works \o/ |
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# http://stackoverflow.com/questions/415677/how-to-replace-placeholders-in-a-text-file/7633579#7633579 |
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line="${line//\\/\\\\}" |
51b1db97f448
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line="${line//\"/\\\"}" |
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line="${line//\`/\\\`}" |
51b1db97f448
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line="${line//\$/\\\$}" |
51b1db97f448
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line="${line//{/\${}" # This is just for vim: } " |
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|
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# echo "($line)" >&2 |
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(eval "echo \"$line\"") || die "Error at $tpl:$linecount: $line" |
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fi |
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|
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done < $tpl > $out |
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} |
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|
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# Recursive expand_template files from src -> dst |
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# XXX: not used |
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103 |
function expand_tree () { |
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local src=$1 |
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local dst=$2 |
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local filter=${3:-'*'} |
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107 |
|
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for path in ${src}/${filter}; do |
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local name=$(basename $path) |
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local target=$dst/$name |
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111 |
|
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if [ -d $path ]; then |
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113 |
echo "expand_tree: $path -> $target" |
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echo "expand_tree $path $target $filter" |
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|
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elif [ -f $path ]; then |
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echo "expand_file: $path -> $target" |
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echo "expand_file $path $target" |
51b1db97f448
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|
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else |
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echo "XXX: ignore weird file: $path" |
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122 |
|
51b1db97f448
yay customized preseeds + functional pkvlm-create
Tero Marttila <terom@fixme.fi>
parents:
diff
changeset
|
123 |
fi |
51b1db97f448
yay customized preseeds + functional pkvlm-create
Tero Marttila <terom@fixme.fi>
parents:
diff
changeset
|
124 |
done |
51b1db97f448
yay customized preseeds + functional pkvlm-create
Tero Marttila <terom@fixme.fi>
parents:
diff
changeset
|
125 |
} |