nixpkgs/pkgs/development/interpreters/lua-5/setup-hook.sh
Matthieu Coudron 2ba891788b Lua generate nix packages from luarocks (#54978)
* lua: generate packages from luarocks

* luarocks-nix: update

* removed packages already available in nixpkgs

* adressing reviews

update script can now accept another csv file as input with -c

* Remove obsolete comment
2019-02-04 11:30:58 +00:00

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# set -e
nix_print() {
if [ ${NIX_DEBUG:-0} -ge $1 ]; then
echo "$2"
fi
}
nix_debug() {
nix_print 3 "$1"
}
addToLuaSearchPathWithCustomDelimiter() {
local varName="$1"
local absPattern="$2"
# delete longest match starting from the lua placeholder '?'
local topDir="${absPattern%%\?*}"
# export only if the folder exists else LUA_PATH grows too big
if [ ! -d "$topDir" ]; then return; fi
export "${varName}=${!varName:+${!varName};}${absPattern}"
}
addToLuaPath() {
local dir="$1"
if [[ ! -d "$dir" ]]; then
nix_debug "$dir not a directory abort"
return 0
fi
cd "$dir"
for pattern in @luapathsearchpaths@;
do
addToLuaSearchPathWithCustomDelimiter NIX_LUA_PATH "$PWD/$pattern"
done
# LUA_CPATH
for pattern in @luacpathsearchpaths@;
do
addToLuaSearchPathWithCustomDelimiter NIX_LUA_CPATH "$PWD/$pattern"
done
cd - >/dev/null
}
addEnvHooks "$hostOffset" addToLuaPath