Use Nushell from Nixpkgs unstable

.github/workflows/ci.yml

@@ -19,11 +19,6 @@ jobs:
         with:
           crate: cargo-audit
           version: latest
-      - uses: actions-rs/install@v0.1
-        if: ${{ matrix.os != 'windows-latest' }}
-        with:
-          crate: nu
-          version: latest
       - uses: cachix/install-nix-action@v12
         if: ${{ matrix.os != 'windows-latest' }}
         with:

Makefile

@@ -16,7 +16,7 @@ endif
 
 ifeq ($(NIX), true)
 build:
-	nix-shell --run 'cargo build $(build_flags) $(ci_color_always)'
+	nix-shell --pure --run 'cargo build $(build_flags) $(ci_color_always)'
 else
 build:
 	cargo build $(build_flags) $(ci_color_always)
@@ -24,7 +24,7 @@ endif
 
 ifeq ($(NIX), true)
 clean:
-	nix-shell --run 'cargo clean $(ci_color_always)'
+	nix-shell --pure --run 'cargo clean $(ci_color_always)'
 else
 clean:
 	cargo clean $(ci_color_always)
@@ -32,7 +32,7 @@ endif
 
 ifeq ($(NIX), true)
 install:
-	nix-shell --run 'cargo install --path=. $(ci_color_always)'
+	nix-shell --pure --run 'cargo install --path=. $(ci_color_always)'
 else
 install:
 	cargo install --path=. $(ci_color_always)
@@ -40,11 +40,11 @@ endif
 
 ifeq ($(NIX), true)
 test:
-	nix-shell --run 'cargo fmt -- --check --files-with-diff $(ci_color_always)'
-	nix-shell --run 'cargo check --all-features $(build_flags) $(ci_color_always)'
-	nix-shell --run 'cargo clippy --all-features $(build_flags) $(ci_color_always) -- --deny warnings --deny clippy::all'
-	nix-shell --run 'cargo test --all-features --no-fail-fast $(build_flags) $(ci_color_always)'
-	nix-shell --run 'cargo audit --deny warnings $(ci_color_always) --ignore=RUSTSEC-2020-0095'
+	nix-shell --pure --run 'cargo fmt -- --check --files-with-diff $(ci_color_always)'
+	nix-shell --pure --run 'cargo check --all-features $(build_flags) $(ci_color_always)'
+	nix-shell --pure --run 'cargo clippy --all-features $(build_flags) $(ci_color_always) -- --deny warnings --deny clippy::all'
+	nix-shell --pure --run 'cargo test --all-features --no-fail-fast $(build_flags) $(ci_color_always)'
+	nix-shell --pure --run 'cargo audit --deny warnings $(ci_color_always) --ignore=RUSTSEC-2020-0095'
 else
 test:
 	cargo fmt -- --check --files-with-diff $(ci_color_always)
@@ -56,7 +56,7 @@ endif
 
 ifeq ($(NIX), true)
 uninstall:
-	nix-shell --run 'cargo uninstall $(ci_color_always)'
+	nix-shell --pure --run 'cargo uninstall $(ci_color_always)'
 else
 uninstall:
 	cargo uninstall $(ci_color_always)

contrib/ranger.py

@@ -1,8 +1,9 @@
 import os.path
+import subprocess
+
 import ranger.api
 import ranger.core.fm
 import ranger.ext.signals
-import subprocess
 
 hook_init_old = ranger.api.hook_init
 

shell.nix

@@ -1,29 +1,30 @@
-{ pkgs ? import (fetchTarball "https://github.com/NixOS/nixpkgs/archive/20.09.tar.gz") {} }:
-
 let
-  python-pkgs = pkgs.python3.withPackages (pkgs: [ pkgs.black pkgs.mypy pkgs.pylint ]);
+  pkgs = import (fetchTarball "https://github.com/NixOS/nixpkgs/archive/20.09.tar.gz") {};
+  pkgsMaster = import (fetchTarball "https://github.com/NixOS/nixpkgs/archive/470e4a9bbc98b171a7e733dfc9e62531f7b9ceca.tar.gz") {};
+  pkgsPython = pkgs.python3.withPackages (pkgs: [ pkgs.black pkgs.mypy pkgs.pylint ]);
 in
 
-pkgs.mkShell {
-  name = "env";
-  buildInputs = [
-    pkgs.bash
-    pkgs.cargo
-    pkgs.cargo-audit
-    pkgs.dash
-    pkgs.fish
-    pkgs.fzf
-    pkgs.git
-    # pkgs.nushell # FIXME: too outdated
-    pkgs.powershell
-    pkgs.rustc
-    pkgs.shellcheck
-    pkgs.shfmt
-    pkgs.xonsh
-    pkgs.zsh
-    python-pkgs
-  ];
+pkgs.mkShell
+  {
+    name = "env";
+    buildInputs = [
+      pkgsMaster.nushell
+      pkgsPython
+      pkgs.bash
+      pkgs.cargo
+      pkgs.cargo-audit
+      pkgs.dash
+      pkgs.fish
+      pkgs.fzf
+      pkgs.git
+      pkgs.powershell
+      pkgs.rustc
+      pkgs.rustfmt
+      pkgs.shellcheck
+      pkgs.shfmt
+      pkgs.xonsh
+      pkgs.zsh
+    ];
 
-  # Set Environment Variables
-  RUST_BACKTRACE = 1;
-}
+    RUST_BACKTRACE = 1;
+  }

src/shell.rs

@@ -157,7 +157,12 @@ mod tests {
                 fn nushell_nushell_#i() {
                     let opts = dbg!(&opts()[i]);
                     let source = Nushell(opts).render().unwrap();
+
+                    let tempdir = tempfile::tempdir().unwrap();
+                    let tempdir = tempdir.path().to_str().unwrap();
+
                     let assert = Command::new("nu")
+                        .env("HOME", tempdir)
                         .args(&["--commands", &source])
                         .assert()
                         .success()