1 files changed, 45 insertions, 71 deletions

diff --git a/xtask/src/install.rs b/xtask/src/install.rs
index 99e1eddb1..540a66130 100644
--- a/xtask/src/install.rs
+++ b/xtask/src/install.rs
@@ -2,9 +2,9 @@
 
 use std::{env, path::PathBuf, str};
 
-use anyhow::{Context, Result};
+use anyhow::{bail, format_err, Context, Result};
 
-use crate::cmd::{run, run_with_output, Cmd};
+use crate::not_bash::{ls, pushd, rm, run};
 
 // Latest stable, feel free to send a PR if this lags behind.
 const REQUIRED_RUST_VERSION: u32 = 41;
@@ -55,7 +55,7 @@ fn fix_path_for_mac() -> Result<()> {
         const ROOT_DIR: &str = "";
         let home_dir = match env::var("HOME") {
             Ok(home) => home,
-            Err(e) => anyhow::bail!("Failed getting HOME from environment with error: {}.", e),
+            Err(e) => bail!("Failed getting HOME from environment with error: {}.", e),
         };
 
         [ROOT_DIR, &home_dir]
@@ -69,7 +69,7 @@ fn fix_path_for_mac() -> Result<()> {
     if !vscode_path.is_empty() {
         let vars = match env::var_os("PATH") {
             Some(path) => path,
-            None => anyhow::bail!("Could not get PATH variable from env."),
+            None => bail!("Could not get PATH variable from env."),
         };
 
         let mut paths = env::split_paths(&vars).collect::<Vec<_>>();
@@ -82,84 +82,61 @@ fn fix_path_for_mac() -> Result<()> {
 }
 
 fn install_client(ClientOpt::VsCode: ClientOpt) -> Result<()> {
-    let npm_version = Cmd {
-        unix: r"npm --version",
-        windows: r"cmd.exe /c npm --version",
-        work_dir: "./editors/code",
-    }
-    .run();
-
-    if npm_version.is_err() {
-        eprintln!("\nERROR: `npm --version` failed, `npm` is required to build the VS Code plugin")
-    }
+    let _dir = pushd("./editors/code");
 
-    Cmd { unix: r"npm install", windows: r"cmd.exe /c npm install", work_dir: "./editors/code" }
-        .run()?;
-    Cmd {
-        unix: r"npm run package --scripts-prepend-node-path",
-        windows: r"cmd.exe /c npm run package",
-        work_dir: "./editors/code",
-    }
-    .run()?;
+    let find_code = |f: fn(&str) -> bool| -> Result<&'static str> {
+        ["code", "code-insiders", "codium", "code-oss"]
+            .iter()
+            .copied()
+            .find(|bin| f(bin))
+            .ok_or_else(|| {
+                format_err!("Can't execute `code --version`. Perhaps it is not in $PATH?")
+            })
+    };
 
-    let code_binary = ["code", "code-insiders", "codium", "code-oss"].iter().find(|bin| {
-        Cmd {
-            unix: &format!("{} --version", bin),
-            windows: &format!("cmd.exe /c {}.cmd --version", bin),
-            work_dir: "./editors/code",
-        }
-        .run()
-        .is_ok()
-    });
+    let installed_extensions;
+    if cfg!(unix) {
+        run!("npm --version").context("`npm` is required to build the VS Code plugin")?;
+        run!("npm install")?;
 
-    let code_binary = match code_binary {
-        Some(it) => it,
-        None => anyhow::bail!("Can't execute `code --version`. Perhaps it is not in $PATH?"),
-    };
+        let vsix_pkg = {
+            rm("*.vsix")?;
+            run!("npm run package --scripts-prepend-node-path")?;
+            ls("*.vsix")?.pop().unwrap()
+        };
 
-    Cmd {
-        unix: &format!(r"{} --install-extension ./rust-analyzer-0.1.0.vsix --force", code_binary),
-        windows: &format!(
-            r"cmd.exe /c {}.cmd --install-extension ./rust-analyzer-0.1.0.vsix --force",
-            code_binary
-        ),
-        work_dir: "./editors/code",
-    }
-    .run()?;
+        let code = find_code(|bin| run!("{} --version", bin).is_ok())?;
+        run!("{} --install-extension {} --force", code, vsix_pkg.display())?;
+        installed_extensions = run!("{} --list-extensions", code; echo = false)?;
+    } else {
+        run!("cmd.exe /c npm --version")
+            .context("`npm` is required to build the VS Code plugin")?;
+        run!("cmd.exe /c npm install")?;
+
+        let vsix_pkg = {
+            rm("*.vsix")?;
+            run!("cmd.exe /c npm run package")?;
+            ls("*.vsix")?.pop().unwrap()
+        };
 
-    let installed_extensions = Cmd {
-        unix: &format!(r"{} --list-extensions", code_binary),
-        windows: &format!(r"cmd.exe /c {}.cmd --list-extensions", code_binary),
-        work_dir: ".",
+        let code = find_code(|bin| run!("cmd.exe /c {}.cmd --version", bin).is_ok())?;
+        run!(r"cmd.exe /c {}.cmd --install-extension {} --force", code, vsix_pkg.display())?;
+        installed_extensions = run!("cmd.exe /c {}.cmd --list-extensions", code; echo = false)?;
     }
-    .run_with_output()?;
 
     if !installed_extensions.contains("rust-analyzer") {
-        anyhow::bail!(
+        bail!(
             "Could not install the Visual Studio Code extension. \
              Please make sure you have at least NodeJS 10.x together with the latest version of VS Code installed and try again."
         );
     }
 
-    if installed_extensions.contains("ra-lsp") {
-        Cmd {
-            unix: &format!(r"{} --uninstall-extension matklad.ra-lsp", code_binary),
-            windows: &format!(
-                r"cmd.exe /c {}.cmd --uninstall-extension matklad.ra-lsp",
-                code_binary
-            ),
-            work_dir: "./editors/code",
-        }
-        .run()?;
-    }
-
     Ok(())
 }
 
 fn install_server(opts: ServerOpt) -> Result<()> {
     let mut old_rust = false;
-    if let Ok(stdout) = run_with_output("cargo --version", ".") {
-        println!("{}", stdout);
+    if let Ok(stdout) = run!("cargo --version") {
         if !check_version(&stdout, REQUIRED_RUST_VERSION) {
             old_rust = true;
         }
@@ -172,20 +149,17 @@ fn install_server(opts: ServerOpt) -> Result<()> {
         )
     }
 
-    let res = if opts.jemalloc {
-        run("cargo install --path crates/ra_lsp_server --locked --force --features jemalloc", ".")
-    } else {
-        run("cargo install --path crates/ra_lsp_server --locked --force", ".")
-    };
+    let jemalloc = if opts.jemalloc { "--features jemalloc" } else { "" };
+    let res = run!("cargo install --path crates/ra_lsp_server --locked --force {}", jemalloc);
 
     if res.is_err() && old_rust {
         eprintln!(
             "\nWARNING: at least rust 1.{}.0 is required to compile rust-analyzer\n",
             REQUIRED_RUST_VERSION,
-        )
+        );
     }
 
-    res
+    res.map(drop)
 }
 
 fn check_version(version_output: &str, min_minor_version: u32) -> bool {