better nix aliases

src/flake.nix

@@ -22,12 +22,29 @@
         dependencies = (with pkgs; [
           zig
           zls
+          git # for use in ci/zig_lints.sh
         ]);
 
-        aliases = ''
-          alias testcmd='zig build snapshot && zig build test'
-          alias fmtcmd='zig build fmt'
-          alias buildcmd='zig build roc'
+        shellFunctions = ''
+          buildcmd() {
+            zig build roc
+          }
+          export -f buildcmd
+
+          testcmd() {
+            zig build snapshot && zig build test
+          }
+          export -f testscmd
+
+          fmtcmd() {
+            zig build fmt
+          }
+          export -f fmtcmd
+
+          cicmd() {
+            zig build fmt && ./ci/zig_lints.sh && zig build && zig build snapshot && zig build test && zig build test-playground
+          }
+          export -f cicmd
         '';
 
       in {
@@ -36,10 +53,13 @@
           buildInputs = dependencies;
 
           shellHook = ''
-            ${aliases}
+            ${shellFunctions}
             
-            echo "Some convenient command aliases:"
-            echo "${aliases}" | grep -E "alias .*" -o | sed 's/alias /  /' | sort
+            echo "Some convenient commands:"
+            echo "${shellFunctions}" | grep -E '^\s*[a-zA-Z_][a-zA-Z0-9_]*\(\)' | sed 's/().*//' | sed 's/^[[:space:]]*/  /' | while read func; do
+              body=$(echo "${shellFunctions}" | sed -n "/''${func}()/,/^[[:space:]]*}/p" | sed '1d;$d' | tr '\n' ';' | sed 's/;$//' | sed 's/[[:space:]]*$//')
+              echo "  $func = $body"
+            done
             echo ""
 
             unset NIX_CFLAGS_COMPILE