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#!/bin/sh
# list all direct dependencies of a package
#
list_deps() {
local name=$1
local tree_file="${DEP_DIR}/$name"
[ -f $tree_file ] &&
for dep in $(cat "$tree_file"); do
echo $dep
done | sort -u
}
# list all dependencies and sub dependencies of a package
#
resolve_deps () {
local deps=""
if ${RESOLVE_DEPS}; then
while [ "$#" != "0" ]; do
# pop a value from the args
local package=$1
shift
#only add if not already added
echo ${deps} | grep -q "\b$package\b" || deps="$deps $package"
for dep in $(list_deps $package); do
# if not already checked
if echo ${deps} | grep -qv "\b$dep\b"; then
set -- $@ $dep
fi
done
done
echo ${deps}
else
echo $@
fi
}
get_package_download_info() {
sed 1q ${PACKAGES_DIR}/*/$1
}
is_installed() {
[ -f "${INSTALLED_DIR}/$1/checksum" ]
}
get_installed_version () {
local name=$1
local file="${INSTALLED_DIR}/$name/checksum"
[ -f $file ] &&
cat $file
}
# bad implementation
package_exists () {
[ "$(find ${PACKAGES_DIR} -mindepth 2 -name "$1" | wc -l)" != "0" ]
}
download_packages () {
local total_download=$1; shift
local packages=$@
local outputs=""
local out_dir="${PACKAGE_CACHE}"
mkdir -p "$out_dir"
for package in $packages; do
local info=$(get_package_download_info $package)
set -- $info
local url=$1
local checksum=$2
local output="${out_dir}/${checksum}.${package}.xipkg"
local output_info="${output}.info"
if validate_checksum $output $checksum; then
${VERBOSE} && printf "${LIGHT_BLACK}skipping download for %s already exists with checksum %s${RESET}\n" $package $checksum
else
${VERBOSE} && printf "${LIGHT_BLACK}downloading $package from $url\n" $package $checksum
touch $output
(curl ${CURL_OPTS} -o "$output_info" "$url.info" || printf "${RED}Failed to download info for %s\n" $package) &
(curl ${CURL_OPTS} -o "$output" "$url" || printf "${RED}Failed to download %s\n" $package) &
fi
outputs="$outputs $output"
done
wait_for_download $total_download ${outputs}
echo
local i=0
set -- $outputs
for pkg_file in ${outputs}; do
${QUIET} || hbar -T "${LARGE_CIRCLE} validating downloads..." $i $#
info_file="${pkg_file}.info"
if ! validate_sig $pkg_file $info_file; then
printf "${RED}Failed to verify signature for ${LIGHT_RED}%s${RED}\n" $(basename -s .xipkg $pkg_file)
mv "$pkg_file" "${pkg_file}.invalid"
else
i=$((i+1))
fi
done
${QUIET} || hbar -t ${HBAR_COMPLETE} -T "${CHECKMARK} validated downloads" $i $#
install $@
}
fetch () {
local requested=$@
local missing=""
local already=""
local install=""
local update=""
local urls=""
local total_download=0
for package in $(resolve_deps $@); do
if package_exists $package; then
set -- $(get_package_download_info $package)
url=$1
checksum=$2
size=$3
files=$4
if is_installed $package; then
if [ "$(get_installed_version $package)" != "$checksum" ]; then
update="$update $package"
total_download=$((total_download+size))
else
already="$already $package"
fi
else
install="$install $package"
total_download=$((total_download+size))
fi
else
missing="$missing $package"
fi
done
if ! ${QUIET}; then
if [ "${#missing}" != "0" ]; then
printf "${LIGHT_RED}The following packages could not be located:"
for package in ${missing}; do
printf "${RED} $package"
done
printf "${RESET}\n"
fi
if [ "${#update}" != "0" ]; then
printf "${LIGHT_GREEN}The following packages will be updated:\n\t"
for package in ${update}; do
printf "${GREEN} $package"
done
printf "${RESET}\n"
fi
if [ "${#install}" != "0" ]; then
printf "${LIGHT_BLUE}The following packages will be installed:\n\t"
for package in ${install}; do
printf "${BLUE} $package"
done
printf "${RESET}\n"
fi
if [ "${#already}" != "0" ]; then
printf "${LIGHT_WHITE}The following packages are already up to date:\n\t"
for package in ${already}; do
printf "${WHITE} $package"
done
printf "${RESET}\n"
fi
fi
[ "${#install}" = "0" ] && [ "${#update}" = 0 ] && printf "${LIGHT_RED}Nothing to do!\n" && return 0
${QUIET} || [ "${SYSROOT}" = "/" ] || printf "${WHITE}To install to ${LIGHT_WHITE}${SYSROOT}${RESET}\n"
${QUIET} || printf "${WHITE}Total download size:${LIGHT_WHITE} $(format_bytes $total_download)\n"
if prompt_question "${WHITE}Continue?"; then
download_packages $total_download ${install} ${update}
else
${QUIET} || printf "${RED}Action canceled by user\n"
fi
}
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