preparing submission to docker-library

generate-stackbrew-library.sh

@@ -0,0 +1,45 @@
+#!/bin/bash
+set -eu
+
+array_2_8='2';
+array_3_0='';
+array_3_1='3 latest';
+
+cd $(cd ${0%/*} && pwd -P);
+
+declare -A variants='centos'
+
+hash git 2>/dev/null || { echo >&2 "git not found, exiting."; }
+
+versions=( */ )
+versions=( "${versions[@]%/}" )
+url='git://github.com/jrottenberg/ffmpeg'
+
+echo '# maintainer: Julien Rottenberg <[email protected]>'
+
+for version in "${versions[@]}"; do
+	if [[ "$version" == "docs" ]]; then
+		continue
+	fi
+	eval stub=$(echo "$version" | awk -F. '{ print "$array_" $1 "_" $2 }');
+	commit="$(git log -1 --format='format:%H' -- "$version")"
+	fullVersion="$(grep -m1 'FFMPEG_VERSION=' "$version/Dockerfile"  | cut -d'=' -f2 | cut -d ' ' -f1)"
+
+	versionAliases=( $fullVersion $version ${stub} )
+	echo
+	for va in "${versionAliases[@]}"; do
+		echo "$va: ${url}@${commit} $version"
+	done
+
+	for variant in $variants; do
+		commit="$(git log -1 --format='format:%H' -- "$version/$variant")"
+		for va in "${versionAliases[@]}"; do
+			if [ "$va" = 'latest' ]; then
+				va="$variant"
+			else
+				va="$va-$variant"
+			fi
+			echo "$va: ${url}@${commit} $version/$variant"
+		done
+	done
+done