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lib.systems.parse: use builtins.head foo instead of elemAt foo 0

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This commit is contained in:
Eman Resu
2026-04-27 00:37:00 -04:00
parent 9c56dc6670
commit 577b481774
1 changed files with 12 additions and 11 deletions
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lib/systems/parse.nix
+12 -11
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@@ -24,6 +24,7 @@ let
elem
elemAt
hasPrefix
head
id
length
mapAttrs
@@ -68,7 +69,7 @@ let
let
found = match "(.*)e?abi.*" x;
in
if found == null then x else elemAt found 0;
if found == null then x else head found;
in
@@ -791,9 +792,9 @@ rec {
l:
{
"1" =
if elemAt l 0 == "avr" then
if head l == "avr" then
{
cpu = elemAt l 0;
cpu = head l;
kernel = "none";
abi = "unknown";
}
@@ -802,7 +803,7 @@ rec {
"2" = # We only do 2-part hacks for things Nix already supports
if elemAt l 1 == "cygwin" then
mkSkeletonFromList [
(elemAt l 0)
(head l)
"pc"
"cygwin"
]
@@ -812,20 +813,20 @@ rec {
# hack-in MSVC for the non-MinGW case right here.
else if elemAt l 1 == "windows" then
{
cpu = elemAt l 0;
cpu = head l;
kernel = "windows";
abi = "msvc";
}
else if (elemAt l 1) == "elf" then
{
cpu = elemAt l 0;
cpu = head l;
vendor = "unknown";
kernel = "none";
abi = elemAt l 1;
}
else
{
cpu = elemAt l 0;
cpu = head l;
kernel = elemAt l 1;
};
"3" =
@@ -840,7 +841,7 @@ rec {
]
then
{
cpu = elemAt l 0;
cpu = head l;
kernel = elemAt l 1;
abi = elemAt l 2;
vendor = "unknown";
@@ -862,7 +863,7 @@ rec {
|| hasPrefix "wasm32" (elemAt l 0)
then
{
cpu = elemAt l 0;
cpu = head l;
vendor = elemAt l 1;
kernel =
if elemAt l 2 == "mingw32" then
@@ -873,14 +874,14 @@ rec {
# lots of tools expect a triplet for Cygwin, even though the vendor is just "pc"
else if elemAt l 2 == "cygwin" then
{
cpu = elemAt l 0;
cpu = head l;
vendor = elemAt l 1;
kernel = "cygwin";
}
else
throw "system string '${lib.concatStringsSep "-" l}' with 3 components is ambiguous";
"4" = {
cpu = elemAt l 0;
cpu = head l;
vendor = elemAt l 1;
kernel = elemAt l 2;
abi = elemAt l 3;