Add workflow and improve error handling

.github/workflows/release.yml

@@ -0,0 +1,52 @@
+name: "Build and Release"
+on:
+  push:
+    tags:
+      - "v*"
+  workflow_dispatch:
+
+jobs:
+  build-release:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Set up toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: nightly
+          override: true
+      - name: Set up MinGW
+        uses: egor-tensin/setup-mingw@v1
+        with:
+          platform: x64
+      - name: Cache cargo builds
+        uses: actions/cache@v2
+        with:
+          path: |
+            target
+            ~/.cargo/
+          key: ${{ runner.os }}-cargo-${{ hashFiles('Cargo.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-cargo-
+      - name: Build Release
+        uses: actions-rs/cargo@v1
+        with:
+          use-cross: false
+          command: build
+          args: --release --all-features -Zmultitarget --target x86_64-unknown-linux-gnu --target x86_64-pc-windows-gnu
+      - name: Move binaries
+        run: mv target/x86_64-unknown-linux-gnu/release/nenv target/nenv-linux-x86_64 && mv target/x86_64-pc-windows-gnu/release/nenv.exe target/nenv-windows-x86_64.exe
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v2
+        with:
+          name: nenv
+          path: target/nenv*
+      - name: publish release
+        uses: "marvinpinto/action-automatic-releases@latest"
+        with:
+          repo_token: "${{ secrets.GITHUB_TOKEN }}"
+          prerelease: false
+          files: |
+            LICENSE
+            target/nenv*

src/error.rs

@@ -1,6 +1,7 @@
 use std::io;
 
 use miette::Diagnostic;
+use semver::VersionReq;
 use thiserror::Error;
 
 use crate::{
@@ -15,14 +16,15 @@ pub type Result<T> = std::result::Result<T, Error>;
 
 #[derive(Debug, Error, Diagnostic)]
 pub enum Error {
-    #[error("Failed to call nodejs.com api: {0}")]
+    #[error("Failed to call nodejs.com api.")]
     Web(
         #[from]
         #[source]
         #[diagnostic_source]
         ApiError,
     ),
-    #[error("Failed to extract archive: {0}")]
+
+    #[error("The node archive could not be extracted")]
     Extract(
         #[from]
         #[source]
@@ -30,23 +32,47 @@ pub enum Error {
         ExtractError,
     ),
 
-    #[error("Failed to load config file: {0}")]
+    #[error("The config file could not be loaded")]
     Config(
         #[from]
         #[source]
         #[diagnostic_source]
         ConfigError,
     ),
-    #[error("Mapper failed: {0}")]
+
+    #[error("Mapping failed")]
     Mapper(
         #[from]
         #[source]
         #[diagnostic_source]
         MapperError,
     ),
-    #[error("Failed to work with json: {0}")]
+
+    #[error("The passed is invalid")]
+    Version(
+        #[from]
+        #[diagnostic_source]
+        VersionError,
+    ),
+
+    #[error("Failed to work with json")]
     Json(#[from] serde_json::Error),
 
-    #[error("IO Error: {0}")]
+    #[error("Error during IO operation")]
     Io(#[from] io::Error),
 }
+
+#[derive(Debug, Error, Diagnostic)]
+pub enum VersionError {
+    #[error("Invalid version string `{0}`")]
+    ParseVersion(#[source_code] String),
+
+    #[error("Unknown Version `{0}`")]
+    UnkownVersion(#[source_code] String),
+
+    #[error("The version `{0}` is not installed")]
+    NotInstalled(#[source_code] String),
+
+    #[error("The version requirement `{0}` cannot be fulfilled")]
+    Unfulfillable(VersionReq),
+}

src/lib.rs

@@ -16,10 +16,12 @@ use error::Result;
 use tokio::fs;
 
 pub async fn install_version(version: NodeVersion) -> Result<()> {
-    fs::remove_file(&*VERSION_FILE_PATH).await?;
+    if VERSION_FILE_PATH.exists() {
+        fs::remove_file(&*VERSION_FILE_PATH).await?;
+    }
     let repo = get_repository().await?;
 
-    if repo.is_installed(&version) {
+    if repo.is_installed(&version)? {
         if !Confirm::new()
             .with_prompt("The version {version} is already installed. Reinstall?")
             .default(false)
@@ -38,7 +40,7 @@ pub async fn install_version(version: NodeVersion) -> Result<()> {
 pub async fn set_default_version(version: NodeVersion) -> Result<()> {
     let mut mapper = get_mapper().await?;
 
-    if !mapper.repository().is_installed(&version)
+    if !mapper.repository().is_installed(&version)?
         && Confirm::new()
             .with_prompt(format!(
                 "The version {version} is not installed. Do you want to install it?"
@@ -61,7 +63,7 @@ pub async fn exec(command: String, args: Vec<OsString>) -> Result<i32> {
     let mapper = get_mapper().await?;
     let active_version = mapper.active_version();
 
-    if !mapper.repository().is_installed(active_version) {
+    if !mapper.repository().is_installed(active_version)? {
         mapper.repository().install_version(&active_version).await?;
     }
     let exit_status = mapper.exec(command, args).await?;

src/main.rs

@@ -6,7 +6,7 @@ use clap::Parser;
 mod args;
 
 #[tokio::main(flavor = "current_thread")]
-async fn main() -> nenv::error::Result<()> {
+async fn main() -> color_eyre::eyre::Result<()> {
     color_eyre::install().unwrap();
     let args: Args = Args::parse();
 
@@ -20,7 +20,9 @@ async fn main() -> nenv::error::Result<()> {
             process::exit(exit_code);
         }
         args::Command::Refresh => nenv::refresh().await,
-    }
+    }?;
+
+    Ok(())
 }
 
 fn print_version() {

src/mapper/mapped_command.rs

@@ -1,7 +1,5 @@
 use std::{
     ffi::OsString,
-    io::{stderr, stdin, stdout},
-    os::fd::{AsRawFd, FromRawFd},
     path::PathBuf,
     process::{ExitStatus, Stdio},
 };
@@ -35,18 +33,11 @@ impl MappedCommand {
         if !self.path.exists() {
             return Err(CommandError::NotFound(self.path));
         }
-        let (stdin, stdout, stderr) = unsafe {
-            (
-                Stdio::from_raw_fd(stdin().as_raw_fd()),
-                Stdio::from_raw_fd(stdout().as_raw_fd()),
-                Stdio::from_raw_fd(stderr().as_raw_fd()),
-            )
-        };
         let exit_status = Command::new(self.path)
             .args(self.args)
-            .stdin(stdin)
-            .stdout(stdout)
-            .stderr(stderr)
+            .stdin(Stdio::inherit())
+            .stdout(Stdio::inherit())
+            .stderr(Stdio::inherit())
             .spawn()?
             .wait()
             .await?;

src/mapper/mod.rs

@@ -4,7 +4,7 @@ use tokio::fs;
 
 use crate::{
     consts::BIN_DIR,
-    error::LibResult,
+    error::{LibResult, VersionError},
     repository::{NodeVersion, Repository},
 };
 
@@ -60,7 +60,7 @@ impl Mapper {
     pub async fn exec(&self, command: String, args: Vec<OsString>) -> LibResult<ExitStatus> {
         let node_path = self
             .repo
-            .get_version_path(&self.active_version)
+            .get_version_path(&self.active_version)?
             .expect("version not installed");
         let executable = node_path.bin().join(command);
         let exit_status = MappedCommand::new(executable, args)
@@ -101,8 +101,8 @@ impl Mapper {
     async fn map_active_version(&self) -> LibResult<()> {
         let dir = self
             .repo
-            .get_version_path(&self.active_version)
-            .expect("missing version");
+            .get_version_path(&self.active_version)?
+            .ok_or_else(|| VersionError::NotInstalled(self.active_version.to_string()))?;
         map_node_bin(dir).await?;
 
         Ok(())

src/repository/mod.rs

@@ -15,7 +15,7 @@ use crate::{
     consts::{
         ARCH, BIN_DIR, CACHE_DIR, CFG_DIR, DATA_DIR, NODE_ARCHIVE_SUFFIX, NODE_VERSIONS_DIR, OS,
     },
-    error::LibResult,
+    error::{LibResult, VersionError},
     web_api::{VersionInfo, WebApi},
 };
 
@@ -117,15 +117,15 @@ impl Repository {
     }
 
     /// Returns the path for the given node version
-    pub fn get_version_path(&self, version: &NodeVersion) -> Option<NodePath> {
-        let info = self.parse_req(&version);
+    pub fn get_version_path(&self, version: &NodeVersion) -> LibResult<Option<NodePath>> {
+        let info = self.parse_req(&version)?;
         let path = build_version_path(&info.version);
 
-        if path.exists() {
+        Ok(if path.exists() {
             Some(NodePath::new(path))
         } else {
             None
-        }
+        })
     }
 
     /// Returns a list of installed versions
@@ -143,15 +143,15 @@ impl Repository {
     }
 
     /// Returns if the given version is installed
-    pub fn is_installed(&self, version: &NodeVersion) -> bool {
-        let info = self.parse_req(version);
+    pub fn is_installed(&self, version: &NodeVersion) -> LibResult<bool> {
+        let info = self.parse_req(version)?;
 
-        build_version_path(&info.version).exists()
+        Ok(build_version_path(&info.version).exists())
     }
 
     /// Installs a specified node version
     pub async fn install_version(&self, version_req: &NodeVersion) -> LibResult<()> {
-        let info = self.parse_req(&version_req);
+        let info = self.parse_req(&version_req)?;
         let archive_path = self.download_version(&info.version).await?;
         self.extract_archive(info, &archive_path)?;
 
@@ -179,16 +179,21 @@ impl Repository {
         Ok(())
     }
 
-    fn parse_req(&self, version_req: &NodeVersion) -> &VersionInfo {
-        match version_req {
+    fn parse_req(&self, version_req: &NodeVersion) -> Result<&VersionInfo, VersionError> {
+        let version = match version_req {
             NodeVersion::Latest => self.versions.latest(),
             NodeVersion::LatestLts => self.versions.latest_lts(),
-            NodeVersion::Lts(lts) => self.versions.get_lts(&lts).expect("Version not found"),
+            NodeVersion::Lts(lts) => self
+                .versions
+                .get_lts(&lts)
+                .ok_or_else(|| VersionError::UnkownVersion(lts.to_owned()))?,
             NodeVersion::Req(req) => self
                 .versions
                 .get_fulfilling(&req)
-                .expect("Version not found"),
-        }
+                .ok_or_else(|| VersionError::Unfulfillable(req.to_owned()))?,
+        };
+
+        Ok(version)
     }
 }