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# Inspired by python/wrapper.nix
# Wrapper around wrapLuaProgramsIn, below. The $luaPath
# variable is passed in from the buildLuarocksPackage function.
set -e
source @luaBuild@/nix-support/utils.sh
wrapLuaPrograms() {
wrapLuaProgramsIn "$out/bin" "$out $luaPath"
}
# with an executable shell script which will set some environment variables
# and then call into the original binary (which has been given a .wrapped suffix).
# luaPath is a list of directories
wrapLuaProgramsIn() {
local dir="$1"
local luaPath="$2"
local f
buildLuaPath "$luaPath"
if [ ! -d "$dir" ]; then
nix_debug "$dir not a directory"
return
fi
nix_debug "wrapping programs in [$dir]"
# Find all regular files in the output directory that are executable.
find "$dir" -type f -perm -0100 -print0 | while read -d "" f; do
if head -n1 "$f" | grep -q '#!.*'; then
# Cross-compilation hack: exec '/nix/store/...-lua-.../bin/lua' execute
# the host lua
# NOTE: We don't --replace-fail, because this hook is also used
# on Lua packages' wrapped binaries.
substituteInPlace "$f" \
--replace-quiet "@luaBuild@" "@luaHost@"
# Build platform's Luarocks writes scripts that reference luarocks
# itself in them, so we fix these references to reference the host
# platform's luarocks.
substituteInPlace "$f" \
--replace-quiet "@luarocksBuild@" "@luarocksHost@"
fi
# wrapProgram creates the executable shell script described
# above. The script will set LUA_(C)PATH and PATH variables!
# (see pkgs/build-support/setup-hooks/make-wrapper.sh)
local -a wrap_args=("$f"
--prefix PATH ':' "$program_PATH"
--prefix LUA_PATH ';' "$LUA_PATH"
--prefix LUA_CPATH ';' "$LUA_CPATH"
)
# Add any additional arguments provided by makeWrapperArgs
# argument to buildLuaPackage.
# makeWrapperArgs
local -a user_args="($makeWrapperArgs)"
local -a wrapProgramArgs=("${wrap_args[@]}" "${user_args[@]}")
# see setup-hooks/make-wrapper.sh
wrapProgram "${wrapProgramArgs[@]}"
# Same as above, but now for the wrapper script
substituteInPlace "$f" \
--replace-quiet "@luarocksBuild@" "@luarocksHost@"
done
}
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