1- #! /bin/bash -i
21
32
43clean_download () {
@@ -10,13 +9,13 @@ clean_download() {
109 # The above steps will minimize the leftovers being created while installing the downloader
1110 # Supported distros:
1211 # debian/ubuntu/alpine
13-
12+
1413 url=$1
1514 output_location=$2
1615 tempdir=$( mktemp -d)
1716 downloader_installed=" "
1817
19- function _apt_get_install() {
18+ _apt_get_install () {
2019 tempdir=$1
2120
2221 # copy current state of apt list - in order to revert back later (minimize contianer layer size)
@@ -25,7 +24,7 @@ clean_download() {
2524 apt-get -y install --no-install-recommends wget ca-certificates
2625 }
2726
28- function _apt_get_cleanup() {
27+ _apt_get_cleanup () {
2928 tempdir=$1
3029
3130 echo " removing wget"
@@ -36,15 +35,15 @@ clean_download() {
3635 rm -r /var/lib/apt/lists && mv $tempdir /lists /var/lib/apt/lists
3736 }
3837
39- function _apk_install() {
38+ _apk_install () {
4039 tempdir=$1
4140 # copy current state of apk cache - in order to revert back later (minimize contianer layer size)
4241 cp -p -R /var/cache/apk $tempdir
4342
4443 apk add --no-cache wget
4544 }
4645
47- function _apk_cleanup() {
46+ _apk_cleanup () {
4847 tempdir=$1
4948
5049 echo " removing wget"
@@ -100,45 +99,39 @@ ensure_nanolayer() {
10099 local variable_name=$1
101100
102101 local required_version=$2
103- # normalize version
104- if ! [[ $required_version == v* ]]; then
105- required_version=v$required_version
106- fi
107102
108- local nanolayer_location =" "
103+ local __nanolayer_location =" "
109104
110105 # If possible - try to use an already installed nanolayer
111- if [[ -z " ${NANOLAYER_FORCE_CLI_INSTALLATION} " ] ]; then
112- if [[ -z " ${NANOLAYER_CLI_LOCATION} " ] ]; then
106+ if [ -z " ${NANOLAYER_FORCE_CLI_INSTALLATION} " ]; then
107+ if [ -z " ${NANOLAYER_CLI_LOCATION} " ]; then
113108 if type nanolayer > /dev/null 2>&1 ; then
114109 echo " Found a pre-existing nanolayer in PATH"
115- nanolayer_location =nanolayer
110+ __nanolayer_location =nanolayer
116111 fi
117112 elif [ -f " ${NANOLAYER_CLI_LOCATION} " ] && [ -x " ${NANOLAYER_CLI_LOCATION} " ] ; then
118- nanolayer_location =${NANOLAYER_CLI_LOCATION}
119- echo " Found a pre-existing nanolayer which were given in env variable: $nanolayer_location "
113+ __nanolayer_location =${NANOLAYER_CLI_LOCATION}
114+ echo " Found a pre-existing nanolayer which were given in env variable: $__nanolayer_location "
120115 fi
121116
122117 # make sure its of the required version
123- if ! [[ -z " ${nanolayer_location } " ] ]; then
118+ if ! [ -z " ${__nanolayer_location } " ]; then
124119 local current_version
125- current_version=$( $nanolayer_location --version)
126- if ! [[ $current_version == v* ]]; then
127- current_version=v$current_version
128- fi
120+ current_version=$( $__nanolayer_location --version)
121+
129122
130123 if ! [ $current_version == $required_version ]; then
131124 echo " skipping usage of pre-existing nanolayer. (required version $required_version does not match existing version $current_version )"
132- nanolayer_location =" "
125+ __nanolayer_location =" "
133126 fi
134127 fi
135128
136129 fi
137130
138131 # If not previuse installation found, download it temporarly and delete at the end of the script
139- if [[ -z " ${nanolayer_location } " ] ]; then
132+ if [ -z " ${__nanolayer_location } " ]; then
140133
141- if [ " $( uname -sm) " == " Linux x86_64" ] || [ " $( uname -sm) " = = " Linux aarch64" ]; then
134+ if [ " $( uname -sm) " = ' Linux x86_64' ] || [ " $( uname -sm) " = " Linux aarch64" ]; then
142135 tmp_dir=$( mktemp -d -t nanolayer-XXXXXXXXXX)
143136
144137 clean_up () {
@@ -162,7 +155,7 @@ ensure_nanolayer() {
162155
163156 tar xfzv $tmp_dir /$tar_filename -C " $tmp_dir "
164157 chmod a+x $tmp_dir /nanolayer
165- nanolayer_location =$tmp_dir /nanolayer
158+ __nanolayer_location =$tmp_dir /nanolayer
166159
167160
168161 else
@@ -172,7 +165,7 @@ ensure_nanolayer() {
172165 fi
173166
174167 # Expose outside the resolved location
175- declare -g ${variable_name} =$nanolayer_location
168+ export ${variable_name} =$__nanolayer_location
176169
177170}
178171
0 commit comments