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Migrate /etc/environment modifications to helpers (#660)

Browse Source 
* migrate rust

* Migrate PHP composer

* Migrate dotnet core sdk

* rename `var_*` to `variable_*`

* rename *etcEnvironmentVar functions to *etcEnvironmentVariable

* add AppendEtcEnvironmentVariable  and PrependEtcEnvironmentVariable

* rename addEtcEnvironmentPathElement to prependEtcEnvironmentPath

* Remove updatepath.sh

Co-authored-by: Sergey Dolin <v-sedoli@micorosoft.com>
This commit is contained in:
Sergey Dolin
2020-04-14 13:23:44 +05:00
committed by GitHub
parent 44e904205f
commit bb9538cc9b
9 changed files with 55 additions and 36 deletions
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61
images/linux/scripts/helpers/etc-environment.sh
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@@ -8,42 +8,57 @@
# values containg slashes (i.e. directory path)
# The values containing '%' will break the functions
function getEtcEnvironmentVar {
var_name="$1"
# remove `var_name=` and possible quotes from the line
grep "^${var_name}=" /etc/environment |sed -E "s%^${var_name}=\"?([^\"]+)\"?.*$%\1%"
function getEtcEnvironmentVariable {
variable_name="$1"
# remove `variable_name=` and possible quotes from the line
grep "^${variable_name}=" /etc/environment |sed -E "s%^${variable_name}=\"?([^\"]+)\"?.*$%\1%"
}
function addEtcEnvironmentVar {
var_name="$1"
var_value="$2"
function addEtcEnvironmentVariable {
variable_name="$1"
variable_value="$2"
echo "$var_name=\"$var_value\"" | sudo tee -a /etc/environment
echo "$variable_name=\"$variable_value\"" | sudo tee -a /etc/environment
}
function replaceEtcEnvironmentVar {
var_name="$1"
var_value="$2"
function replaceEtcEnvironmentVariable {
variable_name="$1"
variable_value="$2"
# modify /etc/environemnt in place by replacing a string that begins with var_name
sudo sed -ie "s%^${var_name}=.*$%${var_name}=\"${var_value}\"%" /etc/environment
# modify /etc/environemnt in place by replacing a string that begins with variable_name
sudo sed -ie "s%^${variable_name}=.*$%${variable_name}=\"${variable_value}\"%" /etc/environment
}
function setEtcEnvironmentVar {
var_name="$1"
var_value="$2"
function setEtcEnvironmentVariable {
variable_name="$1"
variable_value="$2"
if grep "$var_name" /etc/environment > /dev/null; then
replaceEtcEnvironmentVar $var_name $var_value
if grep "$variable_name" /etc/environment > /dev/null; then
replaceEtcEnvironmentVariable $variable_name $variable_value
else
addEtcEnvironmentVar $var_name $var_value
addEtcEnvironmentVariable $variable_name $variable_value
fi
}
function addEtcEnvironmentPathElement {
function prependEtcEnvironmentVariable {
variable_name="$1"
element="$2"
# TODO: handle the case if the variable does not exist
existing_value=$(getEtcEnvironmentVariable "${variable_name}")
setEtcEnvironmentVariable "${variable_name}" "${element}:${existing_value}"
}
function appendEtcEnvironmentVariable {
variable_name="$1"
element="$2"
# TODO: handle the case if the variable does not exist
existing_value=$(getEtcEnvironmentVariable "${variable_name}")
setEtcEnvironmentVariable "${variable_name}" "${existing_value}:${element}"
}
function prependEtcEnvironmentPath {
element="$1"
etc_path=$(getEtcEnvironmentVar PATH)
setEtcEnvironmentVar PATH "${element}:${etc_path}"
prependEtcEnvironmentVariable PATH "${element}"
}
# Process /etc/environment as if it were shell script with `export VAR=...` expressions
@@ -59,7 +74,7 @@ function reloadEtcEnvironment {
# add `export ` to every variable of /etc/environemnt except PATH and eval the result shell script
eval $(grep -v '^PATH=' /etc/environment | sed -e 's%^%export %')
# handle PATH specially
etc_path=$(getEtcEnvironmentVar PATH)
etc_path=$(getEtcEnvironmentVariable PATH)
export PATH="$PATH:$etc_path"
}