mirror of
https://github.com/falk-werner/webfuse
synced 2024-10-27 20:34:10 +00:00
148 lines
3.4 KiB
Bash
Executable File
148 lines
3.4 KiB
Bash
Executable File
#!/bin/sh -e
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# <host-arch>+<target-arch><sub>-<vendor>-<sys>-<abi>+<id>
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#
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# arch = x86_64, i386, arm, thumb, mips, etc.
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# sub = for ex. on ARM: v5, v6m, v7a, v7m, etc.
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# vendor = pc, apple, nvidia, ibm etc.
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# sys = none, linux, win32, darwin, cuda, etc.
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# abi = eabi, gnu, android, macho, elf, etc.
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sh_escape() {
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sed \
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-e "s/\\([;\\*&\\|\\'\\\"\\\$\\(\\)]\\)/\\\\\\1/g" \
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-e "s/\\([^$ESCCHAR]\\)$ESCCHAR\\(\\s\\)/\\1$ESCCHAR\\\\\\2/g" \
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-e "s/$ESCCHAR/\\\\$ESCCHAR/"
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}
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split() {
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delimiter="$1"
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shift
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printf -- '%s\n' "$@" | sed -e "s/\\([^$ESCCHAR]\\)$delimiter/\\1\\n/g"
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}
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unescape() {
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printf -- '%s\n' "$@" | sed -e "s/[$ESCCHAR]\\(.\\)\\?/\\1/g"
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}
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join() {
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paste -s -d"$1" -
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}
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tail() {
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skip 1 "$@"
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}
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skip() {
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toskip="$1"
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shift
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if [ "$toskip" -gt "$#" ]; then
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toskip="$#"
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fi
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while [ "$toskip" -gt '0' ]
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do
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shift
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toskip="$((toskip - 1))"
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done
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printf -- '%s\n' "$@"
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}
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host_march() {
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uname -m
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}
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if [ "$#" -eq 0 ]; then
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{
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printf 'Usage:\n%s <target-name>\n\n' "$0"
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printf 'Format of target-name:\n'
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printf '[<host-arch>+][<target-triple>+]<id>\n'
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printf 'or\n'
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printf '[<host-arch>] [<target-triple>] <id>\n\n'
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printf 'Format of target-triple:\n'
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printf '<target-arch><sub>[-<vendor>][-<sys>][-<abi>]\n'
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printf 'or\n'
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printf '<target-arch><sub>[-<distrib>[@distrib-version]][-<sys>][-<abi>]\n\n'
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printf 'Special characters: %s,+,-,@\n' "$ESCCHAR"
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printf 'Escape character: %s\n\n' "$ESCCHAR"
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printf 'Examples:\n'
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printf '%s myapp\n' "$0"
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printf '%s x86_64+myapp\n' "$0"
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printf '%s x86_64 myapp\n' "$0"
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printf '%s x86_64-alpine@3.9-linux-gnueabihf+myapp\n' "$0"
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printf '%s x86_64-alpine@3.9-linux-gnueabihf myapp\n' "$0"
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printf '%s x86_64+arm32v7-alpine@3.9-linux-gnueabihf+myapp\n' "$0"
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printf '%s x86_64 arm32v7-alpine@3.9-linux-gnueabihf myapp\n' "$0"
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printf '%s x86_64+arm32v7-alpine@3.9-linux-gnueabihf+myapp+id\n' "$0"
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printf '%s x86_64 arm32v7-alpine@3.9-linux-gnueabihf myapp id\n\n' "$0"
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} >&2
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return 1
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fi
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ESCCHAR='~'
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TARGET="$(echo "$@" | join '+')"
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# TODO: remove ugly hack
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# necessary while posix shell can not handle arrays except the argument array
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# maybe re-implement using a more suitable language!
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#shellcheck disable=SC2046
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eval set -- $(split '+' "$@" | sh_escape)
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if [ "$#" -gt 2 ]; then
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HOST_ARCH="$1"
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shift
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fi
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if [ "$#" -eq 1 ]; then
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set -- "$(host_march)" "$@"
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fi
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ID_VARIANT="$(tail "$@" | join '+')"
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TARGET_TRIPLE="$1"
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#shellcheck disable=SC2046
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eval set -- $(split '@' "$ID_VARIANT" | sh_escape)
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ID="$1"
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if [ -z "$ID" ]; then
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printf 'error: failed to parse "%s" aka "%s", unsupported target name\n' "$*" "$TARGET" >&2
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return 2
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fi
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VARIANT="$(tail "$@" | join '@')"
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VARIANT="${VARIANT:-release}"
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#shellcheck disable=SC2046
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eval set -- $(split '-' "$TARGET_TRIPLE" | sh_escape)
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TARGET_ARCH_SUB="$1"
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HOST_ARCH="${HOST_ARCH:-$TARGET_ARCH_SUB}"
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VENDOR="${2:-unknown}"
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TARGET_SYS="${3:-linux}"
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TARGET_ABI="$(skip 3 "$@" | join '-')"
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TARGET_ABI="${TARGET_ABI:-gnu}"
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#shellcheck disable=SC2046
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eval set -- $(split '@' "$VENDOR" | sh_escape)
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VENDOR_OR_DISTRIB_ID="$1"
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DISTRIB_VERSION="$(tail "$@" | join '@')"
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DISTRIB_VERSION="${DISTRIB_VERSION:-latest}"
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set -- \
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"$HOST_ARCH" \
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"$TARGET_ARCH_SUB" \
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"$VENDOR_OR_DISTRIB_ID" \
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"$TARGET_SYS" \
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"$TARGET_ABI" \
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"$ID" \
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"$DISTRIB_VERSION" \
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"$VARIANT"
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unescape "$@" | cat
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