fix: relative path resolution

comma operator...

nix-js/runtime-ts/src/builtins/io.ts

@@ -11,6 +11,7 @@ import { coerceToPath, coerceToString, StringCoercionMode } from "./conversion";
 import { getPathValue } from "../path";
 import type { NixStringContext, StringWithContext } from "../string-context";
 import { mkStringWithContext } from "../string-context";
+import { isPath } from "./type-check";
 
 export const importFunc = (path: NixValue): NixValue => {
   const context: NixStringContext = new Set();
@@ -143,8 +144,9 @@ export const fetchTarball = (args: NixValue): string => {
 
 export const fetchGit = (args: NixValue): NixAttrs => {
   const forced = force(args);
-  if (typeof forced === "string") {
+  if (typeof forced === "string" || isPath(forced)) {
-    const result: FetchGitResult = Deno.core.ops.op_fetch_git(forced, null, null, false, false, false, null);
+    const path = coerceToPath(forced);
+    const result: FetchGitResult = Deno.core.ops.op_fetch_git(path, null, null, false, false, false, null);
     return {
       outPath: result.out_path,
       rev: result.rev,

nix-js/runtime-ts/src/builtins/type-check.ts

@@ -5,6 +5,7 @@
 import {
   HAS_CONTEXT,
   isNixPath,
+  NixPath,
   type NixAttrs,
   type NixBool,
   type NixFloat,
@@ -40,7 +41,7 @@ export const isList = (e: NixValue): e is NixList => Array.isArray(force(e));
 
 export const isNull = (e: NixValue): e is NixNull => force(e) === null;
 
-export const isPath = (e: NixValue): boolean => {
+export const isPath = (e: NixValue): e is NixPath => {
   const val = force(e);
   return isNixPath(val);
 };

nix-js/src/codegen.rs

@@ -7,12 +7,12 @@ use crate::ir::*;
 pub(crate) fn compile(expr: &Ir, ctx: &impl CodegenContext) -> String {
     let code = expr.compile(ctx);
     let debug_prefix = if std::env::var("NIX_JS_DEBUG_THUNKS").is_ok() {
-        "Nix.DEBUG_THUNKS.enabled=true,"
+        "Nix.DEBUG_THUNKS.enabled=true;"
     } else {
         ""
     };
     let cur_dir = ctx.get_current_dir().display().to_string().escape_quote();
-    format!("({}currentDir={},{})", debug_prefix, cur_dir, code)
+    format!("(()=>{{{}const currentDir={};return {}}})()", debug_prefix, cur_dir, code)
 }
 
 trait Compile<Ctx: CodegenContext> {

nix-js/src/context.rs

@@ -70,7 +70,6 @@ impl Context {
         Ok(Self { ctx, runtime, store })
     }
 
-    #[tracing::instrument(skip(self), fields(expr_len = expr.len()))]
     pub fn eval_code(&mut self, expr: &str) -> Result<Value> {
         tracing::info!("Starting evaluation");
         self.ctx.current_file = Some(
@@ -196,7 +195,6 @@ impl Ctx {
             .expect("current_file doesn't have a parent dir")
     }
 
-    #[tracing::instrument(skip(self), fields(expr_len = expr.len()))]
     fn compile_code(&mut self, expr: &str) -> Result<String> {
         tracing::debug!("Parsing Nix expression");
         let root = rnix::Root::parse(expr);

nix-js/src/runtime.rs

@@ -121,13 +121,24 @@ fn op_resolve_path(
     #[string] current_dir: String,
     #[string] path: String,
 ) -> std::result::Result<String, NixError> {
+    let _span = tracing::debug_span!("op_resolve_path").entered();
+    tracing::debug!(current_dir, path);
+
     // If already absolute, return as-is
     if path.starts_with('/') {
         return Ok(path);
     }
-
     // Resolve relative path against current file directory (or CWD)
-    let current_dir = PathBuf::from(current_dir).join(&path);
+    let current_dir = if !path.starts_with("~/") {
+        let mut dir = PathBuf::from(current_dir);
+        dir.push(path);
+        dir
+    } else {
+        let mut dir = std::env::home_dir()
+            .ok_or("home dir not defined")?;
+        dir.push(&path[2..]);
+        dir
+    };
     let mut normalized = PathBuf::new();
     for component in current_dir.components() {
         match component {
@@ -140,6 +151,7 @@ fn op_resolve_path(
             Component::Normal(c) => normalized.push(c),
         }
     }
+    tracing::debug!(normalized = normalized.display().to_string());
     Ok(normalized.to_string_lossy().to_string())
 }
 
@@ -305,7 +317,7 @@ fn op_store_path(
     state: &mut OpState,
     #[string] path: String,
 ) -> std::result::Result<String, NixError> {
-    use crate::store::{validate_store_path, StoreBackend};
+    use crate::store::{StoreBackend, validate_store_path};
     use std::sync::Arc;
 
     let store = state.borrow::<Arc<StoreBackend>>();