carapace: add module

tests/modules/programs/carapace/bash.nix

@@ -0,0 +1,14 @@
+{ ... }:
+
+{
+  programs = {
+    carapace.enable = true;
+    bash.enable = true;
+  };
+
+  nmt.script = ''
+    assertFileExists home-files/.bashrc
+    assertFileRegex home-files/.bashrc \
+      'source <(/nix/store/.*carapace.*/bin/carapace _carapace bash)'
+  '';
+}

tests/modules/programs/carapace/default.nix

@@ -0,0 +1,6 @@
+{
+  carapace-bash = ./bash.nix;
+  carapace-zsh = ./zsh.nix;
+  carapace-fish = ./fish.nix;
+  carapace-nushell = ./nushell.nix;
+}

tests/modules/programs/carapace/fish.nix

@@ -0,0 +1,18 @@
+{ ... }:
+
+{
+  programs = {
+    carapace.enable = true;
+    fish.enable = true;
+  };
+
+  nmt.script = ''
+    assertFileExists home-files/.config/fish/config.fish
+    assertFileRegex home-files/.config/fish/config.fish \
+      '/nix/store/.*carapace.*/bin/carapace _carapace fish \| source'
+
+    # Check whether completions are overridden.
+    assertFileExists home-files/.config/fish/completions/git.fish
+    assertFileContent home-files/.config/fish/completions/git.fish /dev/null
+  '';
+}

tests/modules/programs/carapace/nushell.nix

@@ -0,0 +1,22 @@
+{ pkgs, ... }:
+
+{
+  programs = {
+    carapace.enable = true;
+    nushell.enable = true;
+  };
+
+  nmt.script = let
+    configDir = if pkgs.stdenv.isDarwin then
+      "home-files/Library/Application Support/nushell"
+    else
+      "home-files/.config/nushell";
+  in ''
+    assertFileExists "${configDir}/env.nu"
+    assertFileRegex "${configDir}/env.nu" \
+      '/nix/store/.*carapace.*/bin/carapace _carapace nushell \| save -f \$"(\$carapace_cache)/init\.nu"'
+    assertFileExists "${configDir}/config.nu"
+    assertFileRegex "${configDir}/config.nu" \
+      'source /.*/\.cache/carapace/init\.nu'
+  '';
+}

tests/modules/programs/carapace/zsh.nix

@@ -0,0 +1,14 @@
+{ ... }:
+
+{
+  programs = {
+    carapace.enable = true;
+    zsh.enable = true;
+  };
+
+  nmt.script = ''
+    assertFileExists home-files/.zshrc
+    assertFileRegex home-files/.zshrc \
+      'source <(/nix/store/.*carapace.*/bin/carapace _carapace zsh)'
+  '';
+}