From 31d8bb1fd6ce44013887bfe9c61d75127a787f68 Mon Sep 17 00:00:00 2001
From: emma <emma@tebibyte.media>
Date: Sat, 12 Nov 2022 03:11:20 -0500
Subject: [PATCH] portability B)

---
 "\\"              | 26 ++++++++++++++++++++++++++
 check_licenses.sh | 12 +++++++++---
 2 files changed, 35 insertions(+), 3 deletions(-)
 create mode 100644 "\\"

diff --git "a/\\" "b/\\"
new file mode 100644
index 0000000..5250114
--- /dev/null
+++ "b/\\"
@@ -0,0 +1,26 @@
+#!/bin/sh
+
+set -e
+
+# check usage
+if ! test -n "$1"; then
+	printf "Usage: %s [file...]\n" "$0" 1>&2
+	exit 64 # sysexits(3) EX_USAGE
+fi
+
+# check if we have rg(1); if not, use find(1) and sed(1) instead
+if ! command -v rg >/dev/null 2>&1; then
+	files="$(find "$PWD" -name "$1")"
+	for file in $files; do
+		if ! test -n \
+			"$(sed -n \
+			'\|Copyright\|p' \
+			<"$file")"
+		then
+			! test "$file" = "$1" && printf "%s\n" "$file"
+		fi
+	done
+else
+	rg --multiline --files-without-match --glob "$1" --pcre2 \
+		'(?<!\n)((//)|(#)) Copyright \(c\) \d+ [A-z, ]+\n((//)|(#)) SPDX-License-Identifier: .*\n'
+fi
diff --git a/check_licenses.sh b/check_licenses.sh
index a23408c..e6443bc 100755
--- a/check_licenses.sh
+++ b/check_licenses.sh
@@ -8,10 +8,16 @@ if ! test -n "$1"; then
 	exit 64 # sysexits(3) EX_USAGE
 fi
 
-# check if we have rg(1)
+# check if we have rg(1); if not, use find(1) and sed(1) instead
 if ! command -v rg >/dev/null 2>&1; then
-	printf "%s: Missing dependency: rg(1)\n" "$0" 1>&2
-	exit 69 # sysexits(3) EX_UNAVAILABLE
+	files="$(find "$PWD" -name "$1")"
+	for file in $files; do
+		if ! test -n \
+			"$(sed -n '\|// SPDX-License-Identifier: .*|p' <"$file")"
+		then
+			! test "$file" = "$1" && printf "%s\n" "$file"
+		fi
+	done
 else
 	rg --multiline --files-without-match --glob "$1" --pcre2 \
 		'(?<!\n)((//)|(#)) Copyright \(c\) \d+ [A-z, ]+\n((//)|(#)) SPDX-License-Identifier: .*\n'