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feat: support libmusl detection #244

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84bb01b
Add lbmusl check
bandogora Jan 22, 2026
e3703c8
Explicitly check for libmusl
bandogora Jan 23, 2026
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61 changes: 58 additions & 3 deletions install.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -90,6 +90,7 @@ parse_args() {
esac

}

# this function wraps all the destructive operations
# if a curl|bash cuts off the end of the script due to
# network, either nothing will happen or will syntax error
Expand All @@ -112,6 +113,7 @@ execute() {
done
rm -rf "${tmpdir}"
}

get_binaries() {
case "$PLATFORM" in
darwin/amd64) BINARIES="$BINARY" ;;
Expand All @@ -125,6 +127,7 @@ get_binaries() {
;;
esac
}

tag_to_version() {
if [ -z "${TAG}" ]; then
log_info "checking GitHub for latest tag"
Expand All @@ -140,13 +143,15 @@ tag_to_version() {
TAG="$REALTAG"
VERSION=${TAG#v}
}

adjust_format() {
# change format (tar.gz or zip) based on OS
case ${OS} in
windows) FORMAT=zip ;;
esac
true
}

adjust_os() {
# adjust archive name based on OS
case ${OS} in
Expand All @@ -156,6 +161,7 @@ adjust_os() {
esac
true
}

adjust_arch() {
# adjust archive name based on ARCH
case ${ARCH} in
Expand All @@ -166,6 +172,16 @@ adjust_arch() {
true
}

adjust_libmusl() {
# adjust archive name based on LIBMUSL
if [ -n "$LIBMUSL" ] && [ -n "$FLAVOR" ]; then
LIBMUSL="_libmusl"
else
LIBMUSL=""
fi
true
}

cat /dev/null <<EOF
------------------------------------------------------------------------
https://github.com/client9/shlib - portable posix shell functions
Expand All @@ -174,27 +190,33 @@ https://github.com/client9/shlib/blob/master/LICENSE.md
but credit (and pull requests) appreciated.
------------------------------------------------------------------------
EOF

is_command() {
command -v "$1" >/dev/null
}

echoerr() {
echo "$@" 1>&2
}

# shellcheck disable=SC2329
log_prefix() {
# shellcheck disable=SC2317
echo "$0"
}

_logp=6
log_set_priority() {
_logp="$1"
}

log_priority() {
if test -z "$1"; then
echo "$_logp"
return
fi
[ "$1" -le "$_logp" ]
}

log_tag() {
case $1 in
0) echo "emerg" ;;
Expand All @@ -208,22 +230,27 @@ log_tag() {
*) echo "$1" ;;
esac
}

log_debug() {
log_priority 7 || return 0
echoerr "$(log_prefix)" "$(log_tag 7)" "$@"
}

log_info() {
log_priority 6 || true
echoerr "$(log_prefix)" "$(log_tag 6)" "$@"
}

log_err() {
log_priority 3 || true
echoerr "$(log_prefix)" "$(log_tag 3)" "$@"
}

log_crit() {
log_priority 2 || true
echoerr "$(log_prefix)" "$(log_tag 2)" "$@"
}

uname_os() {
os=$(uname -s | tr '[:upper:]' '[:lower:]')
case "$os" in
Expand All @@ -233,6 +260,7 @@ uname_os() {
esac
echo "$os"
}

uname_arch() {
arch=$(uname -m)
case $arch in
Expand All @@ -247,6 +275,7 @@ uname_arch() {
esac
echo "${arch}"
}

uname_os_check() {
os=$(uname_os)
case "$os" in
Expand All @@ -265,6 +294,7 @@ uname_os_check() {
log_crit "uname_os_check '$(uname -s)' got converted to '$os' which is not a GOOS value. Please file bug at https://github.com/client9/shlib"
return 1
}

uname_arch_check() {
arch=$(uname_arch)
case "$arch" in
Expand All @@ -286,6 +316,15 @@ uname_arch_check() {
log_crit "uname_arch_check '$(uname -m)' got converted to '$arch' which is not a GOARCH value. Please file bug report at https://github.com/client9/shlib"
return 1
}

libmusl_check() {
if [ "$OS" = "linux" ] && command -v ldd >/dev/null 2>&1; then
ldd --version 2>&1 | grep -qi musl
else
return 1
fi
}

untar() {
tarball=$1
case "${tarball}" in
Expand All @@ -298,6 +337,7 @@ untar() {
;;
esac
}

http_download_curl() {
local_file=$1
source_url=$2
Expand All @@ -313,6 +353,7 @@ http_download_curl() {
fi
return 0
}

http_download_wget() {
local_file=$1
source_url=$2
Expand All @@ -323,6 +364,7 @@ http_download_wget() {
wget -q --header "$header" -O "$local_file" "$source_url"
fi
}

http_download() {
log_debug "http_download $2"
if is_command curl; then
Expand All @@ -335,13 +377,15 @@ http_download() {
log_crit "http_download unable to find wget or curl"
return 1
}

http_copy() {
tmp=$(mktemp)
http_download "${tmp}" "$1" "$2" || return 1
body=$(cat "$tmp")
rm -f "${tmp}"
echo "$body"
}

github_release() {
owner_repo=$1
version=$2
Expand All @@ -353,6 +397,7 @@ github_release() {
test -z "$version" && return 1
echo "$version"
}

hash_sha256() {
TARGET=${1:-/dev/stdin}
if is_command gsha256sum; then
Expand All @@ -372,6 +417,7 @@ hash_sha256() {
return 1
fi
}

hash_sha256_verify() {
TARGET=$1
checksums=$2
Expand All @@ -391,6 +437,7 @@ hash_sha256_verify() {
return 1
fi
}

cat /dev/null <<EOF
------------------------------------------------------------------------
End of functions from https://github.com/client9/shlib
Expand All @@ -404,6 +451,12 @@ OS=$(uname_os)
ARCH=$(uname_arch)
PREFIX="$OWNER/$REPO"

if libmusl_check; then
LIBMUSL="/libmusl"
else
LIBMUSL=""
fi

# use in logging routines
log_prefix() {
echo "$PREFIX"
Expand All @@ -427,9 +480,11 @@ adjust_os

adjust_arch

log_info "found version: ${VERSION} for ${TAG}/${OS}/${ARCH}"
log_info "found version: ${VERSION} for ${TAG}/${OS}${LIBMUSL}/${ARCH}"

adjust_libmusl

NAME=${PROJECT_NAME}_${VERSION}-${OS}${FLAVOR}_${ARCH}
NAME=${PROJECT_NAME}_${VERSION}-${OS}${FLAVOR}${LIBMUSL}_${ARCH}
TARBALL=${NAME}.${FORMAT}
TARBALL_URL=${GITHUB_DOWNLOAD}/${TAG}/${TARBALL}
CHECKSUM=checksums.txt
Expand Down
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