feat: add .npmrc file support

Cargo.toml

@@ -23,11 +23,13 @@ pacquet_registry = { path = "crates/registry" }
 pacquet_tarball = { path = "crates/tarball" }
 pacquet_package_json = { path = "crates/package_json" }
 pacquet_lockfile = { path = "crates/lockfile" }
+pacquet_npmrc = { path = "crates/npmrc" }
 
 anyhow = { version = "1.0.71" }
 async-recursion = { version = "1.0.4" }
 clap = { version = "4", features = ["derive"] }
 elsa = { version = "1.8.1" }
+home = { version = "0.5.5" }
 flate2 = { version = "1.0.26" }
 futures-util = { version = "0.3.28" }
 reqwest = { version = "0.11", default-features = false, features = [
@@ -39,8 +41,9 @@ reqwest-middleware = { version = "0.2.2" }
 reqwest-retry = { version = "0.2.2" }
 node-semver = { version = "2.1.0" }
 serde = { version = "1.0.164", features = ["derive"] }
-serde_yaml = { version = "0.9.1" }
+serde_ini = { version = "0.2.0" }
 serde_json = { version = "1.0.99" }
+serde_yaml = { version = "0.9.1" }
 tar = { version = "0.4.38" }
 thiserror = { version = "1.0.40" }
 tracing = { version = "0.1.37" }

README.md

@@ -11,7 +11,7 @@ Experimental package manager for node.js written in rust.
 - [x] Update package.json
 - [ ] Create a shrink file like `pnpm-lock.json` or `package-lock.json`
 - [ ] Workspace support
-- [ ] `.npmrc` support
+- [x] `.npmrc` support
 
 ### Commands
 

crates/npmrc/Cargo.toml

@@ -0,0 +1,17 @@
+[package]
+name = "pacquet_npmrc"
+version = "0.0.1"
+publish = false
+authors.workspace = true
+description.workspace = true
+edition.workspace = true
+homepage.workspace = true
+keywords.workspace = true
+license.workspace = true
+repository.workspace = true
+
+[dependencies]
+home = { workspace = true }
+serde = { workspace = true }
+serde_ini = { workspace = true }
+thiserror = { workspace = true }

crates/npmrc/src/custom_deserializer.rs

@@ -0,0 +1,72 @@
+use std::{env, path::Path, str::FromStr};
+
+use serde::{de, Deserialize, Deserializer};
+
+// This needs to be implemented because serde doesn't support default = "true" as
+// a valid option, and throws  "failed to parse" error.
+pub fn bool_true() -> bool {
+    true
+}
+
+pub fn default_hoist_pattern() -> Vec<String> {
+    vec!["*".to_string()]
+}
+
+pub fn default_public_hoist_pattern() -> Vec<String> {
+    vec!["*eslint*".to_string(), "*prettier*".to_string()]
+}
+
+/// If the $PACQUET_HOME env variable is set, then $PACQUET_HOME/store
+/// If the $XDG_DATA_HOME env variable is set, then $XDG_DATA_HOME/pacquet/store
+/// On Windows: ~/AppData/Local/pacquet/store
+/// On macOS: ~/Library/pacquet/store
+/// On Linux: ~/.local/share/pacquet/store
+pub fn default_store_dir() -> String {
+    if let Ok(pacquet_home) = env::var("$PACQUET_HOME") {
+        return Path::new(&pacquet_home).join("store").as_path().display().to_string();
+    }
+
+    if let Ok(xdg_data_home) = env::var("$XDG_DATA_HOME") {
+        return Path::new(&xdg_data_home).join("pacquet/store").as_path().display().to_string();
+    }
+
+    // https://doc.rust-lang.org/std/env/consts/constant.OS.html
+    match env::consts::OS {
+        "linux" => "~/.local/share/pacquet/store".to_string(),
+        "macos" => "~/Library/pacquet/store".to_string(),
+        "windows" => "~/AppData/Local/pacquet/store".to_string(),
+        _ => panic!("unsupported operating system: {0}", env::consts::OS),
+    }
+}
+
+pub fn default_modules_dir() -> String {
+    "node_modules".to_string()
+}
+
+pub fn default_virtual_store_dir() -> String {
+    "node_modules/.pacquet".to_string()
+}
+
+pub fn default_registry() -> String {
+    "https://registry.npmjs.org/".to_string()
+}
+
+pub fn default_modules_cache_max_age() -> u64 {
+    10080
+}
+
+pub fn deserialize_bool<'de, D>(deserializer: D) -> Result<bool, D::Error>
+where
+    D: Deserializer<'de>,
+{
+    let s = String::deserialize(deserializer)?;
+    bool::from_str(&s).map_err(de::Error::custom)
+}
+
+pub fn deserialize_u64<'de, D>(deserializer: D) -> Result<u64, D::Error>
+where
+    D: Deserializer<'de>,
+{
+    let s = String::deserialize(deserializer)?;
+    u64::from_str(&s).map_err(de::Error::custom)
+}