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|
#! /bin/sh
own_dir="$(cd "$(dirname "$0")"; pwd)"
CURRENT_URL=
url () {
CURRENT_URL="$1"
}
version_unpack () {
sed -re '
s/[.]/ /g;
s@/@ / @g
s/-(rc|pre)/ -1 \1 /g;
s/-(gamma)/ -2 \1 /g;
s/-(beta)/ -3 \1 /g;
s/-(alpha)/ -4 \1 /g;
'
}
version_repack () {
sed -re '
s/ -[0-9]+ ([a-z]+) /-\1/g;
s@ / @/@g
s/ /./g;
'
}
version_sort () {
version_unpack |
sort -t ' ' -k 1n -k 2n -k 3n -k 4n -k 5n -k 6n -k 7n -n | tac |
version_repack
}
position_choice () {
head -n "${1:-1}" | tail -n "${2:-1}"
}
matching_links () {
"$own_dir"/urls-from-page.sh "$CURRENT_URL" | grep -E "$1"
}
link () {
CURRENT_URL="$(matching_links "$1" | position_choice "$2" "$3")"
echo "Linked by: $*"
echo "URL: $CURRENT_URL" >&2
}
version_link () {
CURRENT_URL="$(matching_links "$1" | version_sort | position_choice "$2" "$3")"
echo "Linked version by: $*"
echo "URL: $CURRENT_URL" >&2
}
redirect () {
CURRENT_URL="$(curl -I -L --max-redirs "${1:-99}" "$CURRENT_URL" |
grep -E '^Location: ' | position_choice "${2:-999999}" "$3" |
sed -e 's/^Location: //; s/\r//')"
echo "Redirected: $*"
echo "URL: $CURRENT_URL" >&2
}
replace () {
sed -re "s $1 $2 g"
}
process () {
CURRENT_URL="$(echo "$CURRENT_URL" | replace "$1" "$2")"
echo "Processed: $*"
echo "URL: $CURRENT_URL" >&2
}
version () {
CURRENT_VERSION="$(echo "$CURRENT_URL" | replace "$1" "$2")"
echo "Version: $CURRENT_VERSION" >&2
}
hash () {
CURRENT_HASH="$(nix-prefetch-url "$CURRENT_URL")"
}
name () {
CURRENT_NAME="$1"
}
retrieve_version () {
PACKAGED_VERSION="$(nix-instantiate --eval-only '<nixpkgs>' -A "$CURRENT_NAME".meta.version | xargs)"
}
target () {
CURRENT_TARGET="$1"
}
update_found () {
echo "Compare: $CURRENT_VERSION vs $PACKAGED_VERSION"
[ "$CURRENT_VERSION" != "$PACKAGED_VERSION" ]
}
do_regenerate () {
cat "$1" | grep -F '# Generated upstream information' -B 999999;
echo " rec {"
echo " baseName=\"$CURRENT_NAME\";"
echo " version=\"$CURRENT_VERSION\";"
echo ' name="${baseName}-${version}";'
echo " hash=\"$CURRENT_HASH\";"
echo " url=\"$CURRENT_URL\";"
cat "$1" | grep -F '# Generated upstream information' -A 999999 | grep -E '^ *[}]; *$' -A 999999;
}
do_overwrite () {
hash
do_regenerate "$1" > "$1.new.tmp"
mv "$1.new.tmp" "$1"
}
full_path () {
echo "$(cd "$(dirname "$1")"; pwd)/$(basename "$1")"
}
process_config () {
source "$(full_path "$1")"
retrieve_version
update_found && do_overwrite "$CURRENT_TARGET"
}
process_config "$1"
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