tjh.dev
1#!/bin/sh
2nix_print() {
3 if [ ${NIX_DEBUG:-0} -ge $1 ]; then
4 echo "$2"
5 fi
6}
7
8nix_debug() {
9 nix_print 3 "$1"
10}
11
12addToLuaSearchPathWithCustomDelimiter() {
13 local varName="$1"
14 local absPattern="$2"
15
16 # export only if we haven't already got this dir in the search path
17 if [[ ${!varName-} == *"$absPattern"* ]]; then return; fi
18
19 # if the path variable has not yet been set, initialize it to ";;"
20 # this is a magic value that will be replaced by the default,
21 # allowing relative modules to be used even when there are system modules.
22 if [[ ! -v "${varName}" ]]; then export "${varName}=;;"; fi
23
24 # export only if the folder contains lua files
25 shopt -s globstar
26
27 local adjustedPattern="${absPattern/\?/\*\*\/\*}"
28 for _file in $adjustedPattern; do
29 export "${varName}=${!varName:+${!varName};}${absPattern}"
30 shopt -u globstar
31 return;
32 done
33 shopt -u globstar
34}
35
36addToLuaPath() {
37 local dir="$1"
38
39 if [[ ! -d "$dir" ]]; then
40 nix_debug "$dir not a directory abort"
41 return 0
42 fi
43 cd "$dir"
44 for pattern in @luapathsearchpaths@; do
45 addToLuaSearchPathWithCustomDelimiter LUA_PATH "$PWD/$pattern"
46 done
47
48 # LUA_CPATH
49 for pattern in @luacpathsearchpaths@; do
50 addToLuaSearchPathWithCustomDelimiter LUA_CPATH "$PWD/$pattern"
51 done
52 cd - >/dev/null
53}
54