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platform='unknown'
unameval=`uname`
if [ "$unameval" = 'Linux' ]; then
platform='linux'
elif [ "$unameval" = 'FreeBSD' ]; then
platform='freebsd'
fi
sha1sumcmd='sha1sum'
if [ "$platform" = 'freebsd' ]; then
sha1sumcmd='shasum'
fi
pkgroot="$(pwd)"
deps="$pkgroot/.deps"
prefix="$deps/usr"
export PATH="$prefix/bin:$PATH"
download() {
local url=$1
local tgt=$2
local sha1=$3
if [ ! -d "$tgt" ]; then
mkdir -p "$tgt"
local download_command=""
if which wget > /dev/null 2>&1; then
# -O - to send output to stdout
download_command="wget --no-verbose $url -O -"
elif which curl >/dev/null 2>&1; then
# -L to follow the redirects that github will send us
# -sS to supress the progress bar, but show errors
# curl sends output to stdout by default
download_command="curl -L -sS $url"
else
echo "Missing wget utility and curl utility"
exit 1
fi
local tmp_dir=$(mktemp -d "/tmp/download_sha1check_XXXXXXX")
local fifo="$tmp_dir/fifo"
mkfifo "$fifo"
echo "Downloading $url..."
# download, untar and calculate sha1 sum in one pass
($download_command | tee "$fifo" | \
(cd "$tgt"; tar --strip-components=1 -xzf -)) &
local sum=$("$sha1sumcmd" < "$fifo" | cut -d ' ' -f1)
rm -rf "$tmp_dir"
if [ "$sum" != "$sha1" ]; then
echo "SHA1 sum doesn't match, expected '$sha1' got '$sum'"
exit 1
else
echo "Download complete."
fi
fi
}
github_download() {
local repo=$1
local ver=$2
download "https://github.com/${repo}/archive/${ver}.tar.gz" "$3" "$4"
}
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