mirror of https://github.com/linuxdeepin/linglong
154 lines
3.7 KiB
Bash
Executable File
154 lines
3.7 KiB
Bash
Executable File
#!/usr/bin/env bash
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# 该工具用于检查.layer文件中，图标是否有效
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# 退出状态
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# 0：
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# 图标检查通过，在layer文件内的entries/share/icons路径下存在Icon指定的图标文件；
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# 该layer文件中的desktop里未定义Icon字段；
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# 255：
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# 环境不满足，没有hexdump/erofsfuse等工具；
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# 非layer类型文件；
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# layer文件损坏，无法获取到info.json大小；
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# layer文件挂载失败；
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# 输入参数非普通文件或者该文件不存在；
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# 图标检查未通过，在entries/share/icons下不存在Icon指定的图标文件；
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#
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# TIPS: 该工具的检查函数iconCheck()为弱检查，未完全按xdg desktop specification标准匹配图标
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# 能准确处理icon文件不存在的情况
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# 对于图标文件是否在有效路径，以及图标格式是否合法等情况无法处理
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prepareEnv() {
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if ! command -v hexdump >/dev/null 2>&1 || ! command -v erofsfuse >/dev/null 2>&1; then
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echo "This tool needs 'hexdump' and 'erofsfuse', try to install them with:"
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echo "'sudo apt install bsdextrautils erofsfuse'"
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exit 255
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fi
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}
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getLayerOffset() {
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layerPath=$1
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layerHeader="<<< deepin linglong layer archive >>>"
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declare -i layerHeaderLength=40
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declare -i infoLength=4
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declare -i infoSize offset
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fileHeader=$(hexdump -n ${layerHeaderLength} -e '1/40 "%s\n"' ${layerPath})
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if [ "${fileHeader}" != "${layerHeader}" ]; then
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echo "${layerPath} is not a layer file, exit checking process ..."
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exit 255
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fi
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infoSize=$(hexdump -n ${infoLength} -s ${layerHeaderLength} -e '1/4 "%u\n"' ${layerPath})
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if [ ! ${infoSize} -gt 0 ]; then
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echo "broken layer file, exit checking process ..."
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exit 255
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fi
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offset=${layerHeaderLength}+${infoLength}+${infoSize}
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echo ${offset}
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}
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getDesktopIcons() {
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path=$1
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declare desktopIcons
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desktopList=$(find $path -name "*.desktop")
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for desktop in ${desktopList}; do
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desktopIcons+=$(sed -n 's/^Icon=\(.*\)/\1/p' ${desktop})
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desktopIcons+="\n"
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done
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echo -e "${desktopIcons}"
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}
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formatPrintIconPath() {
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IFS=$'\n'
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for text in $2; do
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echo " $1 --> $text"
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done
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}
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formatPrint() {
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IFS=$'\n'
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for text in $1; do
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echo " $text"
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done
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}
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iconCheck() {
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path=$1
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iconPath=${path}/entries/share/icons
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icons=$2
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echo "LayerDataPath: ${path}"
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echo "IconName:"
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formatPrint "${icons}"
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echo "IconPath:"
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for icon in ${icons}; do
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result=$(find ${iconPath} -name "${icon}*")
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if [ "${result}" == "" ]; then
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formatPrintIconPath "${icon}" "not found"
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return 255
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else
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formatPrintIconPath "${icon}" "${result}"
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fi
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done
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}
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main() {
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RED='\033[0;31m'
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YELLOW='\033[1;33m'
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GREEN='\033[0;32m'
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NC='\033[0m' # No Color
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declare arg1="$1"
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if [[ -z ${arg1} ]]; then
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echo "Usage:"
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echo " ./icon-check.sh path"
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return 0
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fi
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if [ ! -f ${arg1} ]; then
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echo "${arg1} is not a regular file or not exists."
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return 255
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fi
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# env check
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prepareEnv
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offset=$(getLayerOffset "${arg1}")
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# mount data from layer
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dest=$(mktemp --tmpdir=/tmp -d linglong-layer-XXXXXXXX)
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erofsfuse --offset=${offset} ${arg1} ${dest} >/dev/null 2>&1
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if [ ! $? -eq 0 ]; then
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echo "Extract layer failed!"
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return 255
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fi
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# check desktop file, quit normaly if no Icon set
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icons=$(getDesktopIcons ${dest})
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if [ "${icons}" == "" ]; then
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echo "No icon set in desktop file, nothing need to check ..."
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return 0
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fi
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# check whether icon exists
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iconCheck "${dest}" "${icons}"
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if [ ! $? -eq 0 ]; then
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echo "---------------------------------------------------"
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echo -e "Icon check ${RED}failed${NC} ..."
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return 255
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fi
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echo "--------------------------------------------------"
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echo -e "Icon check ${YELLOW}passed${NC} ..."
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# clean data
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umount ${dest} && rm ${dest} -rf
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return 0
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}
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main "$@"
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