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246 lines
8.7 KiB
246 lines
8.7 KiB
#!/bin/bash
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# LinuxGSM core_dl.sh function
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# Author: Daniel Gibbs
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# Contributor: UltimateByte
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# Website: https://linuxgsm.com
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# Description: Deals with all downloads for LinuxGSM.
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# remote_fileurl: The URL of the file: http://example.com/dl/File.tar.bz2
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# local_filedir: location the file is to be saved: /home/server/lgsm/tmp
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# local_filename: name of file (this can be different from the url name): file.tar.bz2
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# chmodx: Optional, set to "chmodx" to make file executable using chmod +x
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# run: Optional, set run to execute the file after download
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# forcedl: Optional, force re-download of file even if exists
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# md5: Optional, set an md5 sum and will compare it against the file.
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#
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# Downloads can be defined in code like so:
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# fn_fetch_file "${remote_fileurl}" "${local_filedir}" "${local_filename}" "${chmodx}" "${run}" "${forcedl}" "${md5}"
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# fn_fetch_file "http://example.com/file.tar.bz2" "/some/dir" "file.tar.bz2" "chmodx" "run" "forcedl" "10cd7353aa9d758a075c600a6dd193fd"
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local commandname="DOWNLOAD"
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local commandaction="Download"
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local function_selfname="$(basename "$(readlink -f "${BASH_SOURCE[0]}")")"
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fn_dl_md5(){
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# Runs MD5 Check if available
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if [ "${md5}" != "0" ]&&[ "${md5}" != "nomd5" ]; then
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echo -en "verifying ${local_filename} with MD5..."
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sleep 0.5
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local md5sumcmd=$(md5sum "${local_filedir}/${local_filename}"|awk '{print $1;}')
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if [ "${md5sumcmd}" != "${md5}" ]; then
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fn_print_fail_eol_nl
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echo "${local_filename} returned MD5 checksum: ${md5sumcmd}"
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echo "expected MD5 checksum: ${md5}"
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fn_script_log_fatal "Verifying ${local_filename} with MD5: FAIL"
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fn_script_log_info "${local_filename} returned MD5 checksum: ${md5sumcmd}"
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fn_script_log_info "Expected MD5 checksum: ${md5}"
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core_exit.sh
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else
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fn_print_ok_eol_nl
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fn_script_log_pass "Verifying ${local_filename} with MD5: OK"
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fn_script_log_info "${local_filename} returned MD5 checksum: ${md5sumcmd}"
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fn_script_log_info "Expected MD5 checksum: ${md5}"
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fi
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fi
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}
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# Extracts bzip2, gzip or zip files
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# Extracts can be defined in code like so:
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# fn_dl_extract "${local_filedir}" "${local_filename}" "${extractdir}"
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# fn_dl_extract "/home/gameserver/lgsm/tmp" "file.tar.bz2" "/home/gamserver/serverfiles"
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fn_dl_extract(){
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local_filedir="${1}"
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local_filename="${2}"
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extractdir="${3}"
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# extracts archives
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echo -en "extracting ${local_filename}..."
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mime=$(file -b --mime-type "${local_filedir}/${local_filename}")
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if [ ! -d "${extractdir}" ]; then
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mkdir "${extractdir}"
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fi
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if [ "${mime}" == "application/gzip" ]||[ "${mime}" == "application/x-gzip" ]; then
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extractcmd=$(tar -zxf "${local_filedir}/${local_filename}" -C "${extractdir}")
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elif [ "${mime}" == "application/x-bzip2" ]; then
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tarcmd=$(tar -jxf "${local_filedir}/${local_filename}" -C "${extractdir}")
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elif [ "${mime}" == "application/x-xz" ]; then
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tarcmd=$(tar -xf "${local_filedir}/${local_filename}" -C "${extractdir}")
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elif [ "${mime}" == "application/zip" ]; then
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extractcmd=$(unzip -d "${extractdir}" "${local_filedir}/${local_filename}")
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fi
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local exitcode=$?
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if [ ${exitcode} -ne 0 ]; then
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fn_print_fail_eol_nl
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fn_script_log_fatal "Extracting download: FAIL"
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if [ -f "${lgsmlog}" ]; then
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echo "${extractcmd}" >> "${lgsmlog}"
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fi
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echo "${extractcmd}"
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core_exit.sh
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else
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fn_print_ok_eol_nl
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fn_script_log_pass "Extracting download: OK"
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fi
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}
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# Trap to remove file download if canceled before completed
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fn_fetch_trap(){
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echo ""
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echo -en "downloading ${local_filename}..."
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fn_print_canceled_eol_nl
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fn_script_log_info "Downloading ${local_filename}...CANCELED"
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sleep 0.5
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rm -f "${local_filedir}/${local_filename}"
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echo -en "downloading ${local_filename}..."
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fn_print_removed_eol_nl
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fn_script_log_info "Downloading ${local_filename}...REMOVED"
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core_exit.sh
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}
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fn_fetch_file(){
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remote_fileurl="${1}"
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local_filedir="${2}"
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local_filename="${3}"
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chmodx="${4:-0}"
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run="${5:-0}"
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forcedl="${6:-0}"
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md5="${7:-0}"
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# Download file if missing or download forced
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if [ ! -f "${local_filedir}/${local_filename}" ]||[ "${forcedl}" == "forcedl" ]; then
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if [ ! -d "${local_filedir}" ]; then
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mkdir -p "${local_filedir}"
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fi
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# Trap will remove part downloaded files if canceled
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trap fn_fetch_trap INT
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# larger files show a progress bar
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if [ "${local_filename##*.}" == "bz2" ]||[ "${local_filename##*.}" == "gz" ]||[ "${local_filename##*.}" == "zip" ]||[ "${local_filename##*.}" == "jar" ]||[ "${local_filename##*.}" == "xz" ]; then
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echo -en "downloading ${local_filename}..."
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sleep 0.5
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echo -en "downloading ${local_filename}..."
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curlcmd=$(${curlpath} --progress-bar --fail -L -o "${local_filedir}/${local_filename}" "${remote_fileurl}")
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else
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echo -en " fetching ${local_filename}...\c"
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curlcmd=$(${curlpath} -s --fail -L -o "${local_filedir}/${local_filename}" "${remote_fileurl}" 2>&1)
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fi
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local exitcode=$?
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if [ ${exitcode} -ne 0 ]; then
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fn_print_fail_eol_nl
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if [ -f "${lgsmlog}" ]; then
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fn_script_log_fatal "Downloading ${local_filename}: FAIL"
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echo -e "${remote_fileurl}" >> "${lgsmlog}"
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echo "${curlcmd}" >> "${lgsmlog}"
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fi
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echo -e "${remote_fileurl}"
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echo "${curlcmd}"
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core_exit.sh
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else
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fn_print_ok_eol_nl
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if [ -f "${lgsmlog}" ]; then
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fn_script_log_pass "Downloading ${local_filename}: OK"
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fi
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fi
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# Remove trap
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trap - INT
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# Make file executable if chmodx is set
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if [ "${chmodx}" == "chmodx" ]; then
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chmod +x "${local_filedir}/${local_filename}"
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fi
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fi
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if [ -f "${local_filedir}/${local_filename}" ]; then
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fn_dl_md5
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# Execute file if run is set
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if [ "${run}" == "run" ]; then
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source "${local_filedir}/${local_filename}"
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fi
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fi
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}
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# GitHub file download functions
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# Used to simplify downloading specific files from GitHub
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# github_file_url_dir: the directory of the file in the GitHub: lgsm/functions
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# github_file_url_name: the filename of the file to download from GitHub: core_messages.sh
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# githuburl: the full GitHub url
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# remote_fileurl: The URL of the file: http://example.com/dl/File.tar.bz2
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# local_filedir: location the file is to be saved: /home/server/lgsm/tmp
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# local_filename: name of file (this can be different from the url name): file.tar.bz2
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# chmodx: Optional, set to "chmodx" to make file executable using chmod +x
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# run: Optional, set run to execute the file after download
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# forcedl: Optional, force re-download of file even if exists
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# md5: Optional, set an md5 sum and will compare it against the file.
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# Fetches any files from the GitHub repo
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fn_fetch_file_github(){
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github_file_url_dir="${1}"
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github_file_url_name="${2}"
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githuburl="https://raw.githubusercontent.com/${githubuser}/${githubrepo}/${githubbranch}/${github_file_url_dir}/${github_file_url_name}"
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remote_fileurl="${githuburl}"
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local_filedir="${3}"
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local_filename="${github_file_url_name}"
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chmodx="${4:-0}"
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run="${5:-0}"
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forcedl="${6:-0}"
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md5="${7:-0}"
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# Passes vars to the file download function
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fn_fetch_file "${remote_fileurl}" "${local_filedir}" "${local_filename}" "${chmodx}" "${run}" "${forcedl}" "${md5}"
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}
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fn_fetch_config(){
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github_file_url_dir="${1}"
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github_file_url_name="${2}"
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githuburl="https://raw.githubusercontent.com/${githubuser}/${githubrepo}/${githubbranch}/${github_file_url_dir}/${github_file_url_name}"
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remote_fileurl="${githuburl}"
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local_filedir="${3}"
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local_filename="${4}"
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chmodx="nochmodx"
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run="norun"
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forcedl="noforce"
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md5="nomd5"
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# Passes vars to the file download function
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fn_fetch_file "${remote_fileurl}" "${local_filedir}" "${local_filename}" "${chmodx}" "${run}" "${forcedl}" "${md5}"
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}
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# Fetches functions
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fn_fetch_function(){
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github_file_url_dir="lgsm/functions"
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github_file_url_name="${functionfile}"
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githuburl="https://raw.githubusercontent.com/${githubuser}/${githubrepo}/${githubbranch}/${github_file_url_dir}/${github_file_url_name}"
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remote_fileurl="${githuburl}"
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local_filedir="${functionsdir}"
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local_filename="${github_file_url_name}"
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chmodx="chmodx"
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run="run"
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forcedl="noforce"
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md5="nomd5"
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# Passes vars to the file download function
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fn_fetch_file "${remote_fileurl}" "${local_filedir}" "${local_filename}" "${chmodx}" "${run}" "${forcedl}" "${md5}"
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}
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fn_update_function(){
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exitbypass=1
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github_file_url_dir="lgsm/functions"
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github_file_url_name="${functionfile}"
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githuburl="https://raw.githubusercontent.com/${githubuser}/${githubrepo}/${githubbranch}/${github_file_url_dir}/${github_file_url_name}"
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remote_fileurl="${githuburl}"
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local_filedir="${functionsdir}"
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local_filename="${github_file_url_name}"
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chmodx="chmodx"
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run="norun"
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forcedl="noforce"
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md5="nomd5"
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fn_fetch_file "${remote_fileurl}" "${local_filedir}" "${local_filename}" "${chmodx}" "${run}" "${forcedl}" "${md5}"
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}
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# Defines curl path
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curlpath=$(command -v curl 2>/dev/null)
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if [ "$(basename "${curlpath}")" != "curl" ]; then
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echo "[ FAIL ] Curl is not installed"
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exit 1
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fi
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