Update validate-checksum to check $# and allow upstream project name as third argument (in case renamed to downstream name)

Signed-off-by: Mattias Andrée <m@maandree.se>

1 files changed, 12 insertions, 3 deletions

diff --git a/validate-checksum b/validate-checksum
index 49a46c5..ee94401 100755
--- a/validate-checksum
+++ b/validate-checksum
@@ -2,7 +2,7 @@
 signature_key=3683C4B70CFA859F0173F2CCE0DD13EBFC7D5E3E
 
 
-# Copyright © 2025  Mattias Andrée (m@maandree.se)
+# Copyright © 2025, 2026  Mattias Andrée (m@maandree.se)
 # 
 # Copying and distribution of this script, with or without modification,
 # are permitted in any medium without royalty provided the copyright
@@ -13,10 +13,14 @@ signature_key=3683C4B70CFA859F0173F2CCE0DD13EBFC7D5E3E
 set -e
 
 usage () {
-	printf 'usage: %s hasher file\n' "$0" >&2
+	printf 'usage: %s hasher file [project]\n' "$0" >&2
 	exit 1
 }
 
+if test $# -lt 2 || $# -gt 3; then
+	usage
+fi
+
 get_algo () {
 	if   test "$1" = sha224sum;     then echo SHA224
 	elif test "$1" = sha256sum;     then echo SHA256
@@ -38,6 +42,7 @@ signature_key="$(printf '%s\n' "${signature_key}" | tr -d ' ')"
 
 hasher="$(printf '%s\n' "$1" | sed 's/s$//')"
 file="$2"
+proj="$3"
 
 if ! algo="$(get_algo "${hasher}")" ||  test ! -f "${file}"; then
 	usage
@@ -49,11 +54,15 @@ hash="$(${hasher} -- "${file}" | cut -d ' ' -f 1 | tr A-F a-f)"
 pkgname="$(basename -- "${file}" | sed -n 's/-[^-]*\.tar\.gz$//p')"
 pkgver="$(basename -- "${file}" | sed -n 's/^.*-\([^-]*\)\.tar\.gz$/\1/p')"
 
+if test -z "${proj}"; then
+	proj="${pkgname}"
+fi
+
 if test -z "${pkgname}" || test -z "${pkgver}"; then
 	usage
 fi
 
-url="https://maandree.se/rel/$pkgname/$pkgver.html"
+url="https://maandree.se/rel/$proj/$pkgver.html"
 
 page="$(curl -sL -- "${url}")"
 sigpage="$(curl -sL -- "${url}.sig")"