nixpkgs/pkgs/common-updater/scripts/list-archive-two-levels-versions
2022-02-21 13:01:49 -03:00

54 lines
1.4 KiB
Bash
Executable file
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

#!/usr/bin/env bash
# lists all available versions listed for a package in a site (http)
archive="" # archive url
pname="" # package name
file="" # file for writing debugging information
while (( $# > 0 )); do
flag="$1"
shift 1
case "$flag" in
--url=*)
archive="${flag#*=}"
;;
--pname=*)
pname="${flag#*=}"
;;
--file=*)
file="${flag#*=}"
;;
*)
echo "$0: unknown option ${flag}"
exit 1
;;
esac
done
# by default set url to the base dir of the first url in src.urls
if [[ -z "$archive" ]]; then
archive="$(nix-instantiate $systemArg --eval -E \
"with import ./. {}; dirOf (dirOf (lib.head $UPDATE_NIX_ATTR_PATH.src.urls))" \
| tr -d '"')"
fi
if [[ -z "$pname" ]]; then
pname="$UPDATE_NIX_ATTR_PATH"
fi
# print a debugging message
if [[ -n "$file" ]]; then
echo "# Listing versions for '$pname' at $archive" >> $file
fi
# list all major-minor versions from archive
tags1=$(curl -sS "$archive/")
tags1=$(echo "$tags1" | sed -rne 's,^<a href="([0-9]+\.[0-9]+)/">.*,\1,p')
# print available versions
for tag in $tags1; do
tags2=$(curl -sS "$archive/$tag/")
tags2=$(echo "$tags2" | sed -rne "s,^<a href=\"$pname-([0-9.]+)\\.[^0-9].*\">.*,\\1,p")
echo "$tags2"
done