From 9e032bde964b7adae320f890c0c9b69d684b3be2 Mon Sep 17 00:00:00 2001
From: s-ol <s+removethis@s-ol.nu>
Date: Mon, 4 Jan 2021 12:20:54 +0100
Subject: add SASS plugin

---
 .../sass/converts: text$moonscript -> table.moon   | 55 ++++++++++++++++++++++
 shell.nix                                          |  2 +-
 2 files changed, 56 insertions(+), 1 deletion(-)
 create mode 100644 root/$mmm/plugins/sass/converts: text$moonscript -> table.moon

diff --git a/root/$mmm/plugins/sass/converts: text$moonscript -> table.moon b/root/$mmm/plugins/sass/converts: text$moonscript -> table.moon
new file mode 100644
index 0000000..e353c53
--- /dev/null
+++ b/root/$mmm/plugins/sass/converts: text$moonscript -> table.moon	
@@ -0,0 +1,55 @@
+if MODE == 'CLIENT'
+  return {}
+
+posix = require 'posix'
+
+{
+  {
+    inp: 'text/x-scss'
+    out: 'text/css'
+    cost: 1
+    transform: (content) =>
+      r0, w0 = posix.pipe!
+      r1, w1 = posix.pipe!
+      r2, w2 = posix.pipe!
+
+      pid = assert posix.fork!
+      if pid == 0
+        posix.close w0
+        posix.close r1
+        posix.close r2
+
+        posix.dup2 r0, posix.fileno io.stdin
+        posix.dup2 w1, posix.fileno io.stdout
+        posix.dup2 w2, posix.fileno io.stderr
+
+        posix.close r0
+        posix.close w1
+        posix.close w2
+
+        err = assert posix.execp 'sassc', '-s'
+        posix._exit err
+        return
+      else
+        posix.close r0
+        posix.close w1
+        posix.close w2
+
+        posix.write w0, content
+        posix.close w0
+
+        _, _, status = posix.wait pid
+
+        out = if status == 0 then r1 else r2
+        out = assert posix.fdopen out, 'r'
+        out = out\read 'a'
+
+        posix.close r1
+        posix.close r2
+
+        if status == 0
+          out
+        else
+          error out
+  }
+}
diff --git a/shell.nix b/shell.nix
index 5131563..703f8b5 100644
--- a/shell.nix
+++ b/shell.nix
@@ -48,7 +48,7 @@ in pkgs.mkShell {
   name = "mmm-env";
   buildInputs = with pkgs; [
     tup sassc entr
-    (lua5_3.withPackages (p: with p; [ moonscript http cjson discount busted ]))
+    (lua5_3.withPackages (p: with p; [ moonscript http cjson discount busted luaposix ]))
   ];
   shellHook = ''
     runServer () {
-- 
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