Add java support

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

hosts/common/shells/go/default.nix

@@ -7,16 +7,13 @@ pkgs.mkShell {
   ];
 
   shellHook = ''
-    export P10K_EXTRA_RIGHT_PROMPT_ELEMENTS=(
-      goenv
-      "''${P10K_EXTRA_RIGHT_PROMPT_ELEMENTS[@]}"
-    )
-
-    if git rev-parse --is-inside-work-tree &> /dev/null && ! grep -q "^\.go$" .gitignore .git/info/exclude; then
-      echo ".go" >> .git/info/exclude
-      export GOPATH="$(git rev-parse --show-toplevel)/.go"
+    if git rev-parse --is-inside-work-tree &> /dev/null; then
+      TOP="$(git rev-parse --show-toplevel)"
+      if ! grep -q "^\.go$" "$TOP/.gitignore" "$TOP/.git/info/exclude"; then echo ".go" >> "$TOP/.git/info/exclude"; fi
     else
-      export GOPATH="$(pwd)/.go"
+      TOP="$(pwd)"
     fi
+
+    export GOPATH="$TOP/.go"
   '';
 }

hosts/common/shells/java17/default.nix

@@ -0,0 +1,10 @@
+{ pkgs, ... }:
+pkgs.mkShell {
+  packages = with pkgs; [
+    jdk17
+  ];
+
+  shellHook = ''
+    export JAVA_HOME=${pkgs.jdk17.home}
+  '';
+}

hosts/common/shells/nodejs/default.nix

@@ -3,11 +3,4 @@ pkgs.mkShell {
   packages = with pkgs; [
     nodejs
   ];
-
-  shellHook = ''
-    export P10K_EXTRA_RIGHT_PROMPT_ELEMENTS=(
-      node_version
-      "''${P10K_EXTRA_RIGHT_PROMPT_ELEMENTS[@]}"
-    )
-  '';
 }

hosts/common/shells/python/default.nix

@@ -13,9 +13,24 @@ pkgs.mkShell {
   ];
 
   shellHook = ''
-    export P10K_EXTRA_RIGHT_PROMPT_ELEMENTS=(
-      virtualenv
-      "''${P10K_EXTRA_RIGHT_PROMPT_ELEMENTS[@]}"
-    )
+    if git rev-parse --is-inside-work-tree &> /dev/null; then
+      TOP="$(git rev-parse --show-toplevel)"
+      if ! grep -q "^\.venv$" "$TOP/.gitignore" "$TOP/.git/info/exclude"; then echo ".venv" >> "$TOP/.git/info/exclude"; fi
+    else
+      TOP="$(pwd)"
+    fi
+
+    if [ -d "$TOP/.venv" ]; then
+      source "$TOP/.venv/bin/activate"
+    else
+      echo "No virtual environment found. Do you want to create one? (y/N)"
+      read -r answer
+      if [[ "$answer" =~ ^[Yy]$ ]]; then
+        python -m venv "$TOP/.venv"
+        source "$TOP/.venv/bin/activate"
+        pip install --upgrade pip
+        if [ -f "$TOP/requirements.txt" ]; then pip install -r "$TOP/requirements.txt"; fi
+      fi
+    fi
   '';
 }