79 lines
1.7 KiB
Bash
Executable File
79 lines
1.7 KiB
Bash
Executable File
#!/usr/bin/env bash
|
|
set -Eeuo pipefail
|
|
|
|
declare -A aliases=(
|
|
[4.0]='4 latest'
|
|
[3.1]='3'
|
|
[2.12]='2'
|
|
)
|
|
|
|
self="$(basename "$BASH_SOURCE")"
|
|
cd "$(dirname "$(readlink -f "$BASH_SOURCE")")"
|
|
|
|
versions=( */ )
|
|
versions=( "${versions[@]%/}" )
|
|
|
|
# sort version numbers with highest first
|
|
IFS=$'\n'; versions=( $(echo "${versions[*]}" | sort -rV) ); unset IFS
|
|
|
|
# get the most recent commit which modified any of "$@"
|
|
fileCommit() {
|
|
git log -1 --format='format:%H' HEAD -- "$@"
|
|
}
|
|
|
|
# get the most recent commit which modified "$1/Dockerfile" or any file COPY'd from "$1/Dockerfile"
|
|
dirCommit() {
|
|
local dir="$1"; shift
|
|
(
|
|
cd "$dir"
|
|
fileCommit \
|
|
Dockerfile \
|
|
$(git show HEAD:./Dockerfile | awk '
|
|
toupper($1) == "COPY" {
|
|
for (i = 2; i < NF; i++) {
|
|
print $i
|
|
}
|
|
}
|
|
')
|
|
)
|
|
}
|
|
|
|
cat <<-EOH
|
|
# this file is generated via https://github.com/tianon/docker-qemu/blob/$(fileCommit "$self")/$self
|
|
|
|
Maintainers: Tianon Gravi <admwiggin@gmail.com> (@tianon)
|
|
GitRepo: https://github.com/tianon/docker-qemu.git
|
|
EOH
|
|
|
|
# prints "$2$1$3$1...$N"
|
|
join() {
|
|
local sep="$1"; shift
|
|
local out; printf -v out "${sep//%/%%}%s" "$@"
|
|
echo "${out#$sep}"
|
|
}
|
|
|
|
for version in "${versions[@]}"; do
|
|
commit="$(dirCommit "$version")"
|
|
|
|
fullVersion="$(git show "$commit":"$version/Dockerfile" | awk '$1 == "ENV" && $2 == "QEMU_VERSION" { print $3; exit }')"
|
|
|
|
rcVersion="${version%-rc}"
|
|
|
|
versionAliases=()
|
|
while [ "$fullVersion" != "$rcVersion" -a "${fullVersion%[.]*}" != "$fullVersion" ]; do
|
|
versionAliases+=( $fullVersion )
|
|
fullVersion="${fullVersion%[.]*}"
|
|
done
|
|
versionAliases+=(
|
|
$version
|
|
${aliases[$version]:-}
|
|
)
|
|
|
|
echo
|
|
cat <<-EOE
|
|
Tags: $(join ', ' "${versionAliases[@]}")
|
|
GitCommit: $commit
|
|
Directory: $version
|
|
EOE
|
|
done
|