introduce env-var YEN_PYTHONS_PATH (#7)

README.md

@@ -7,7 +7,7 @@ The easiest Python environment manager. Create virtual environments for any Pyth
 Get the tool by running the following command:
 
 - MacOS / Linux:
-  
+
   ```bash
   curl -L yen.tushar.lol/install.sh | sh
   ```
@@ -38,6 +38,9 @@ $ yen create venv -p 3.11
 Downloading 3.11.5 ━━━━━━━━━━━━━━━━━━━━━━━━━ 100.0% • 17.4/17.4 MB • 12.4 MB/s • 0:00:00
 Created venv with Python 3.11.5 ✨
 
+By default the python-installation will be done in ~/.yen_pythons.
+You can change this location by setting a different path using the environment variable `YEN_PYTHONS_PATH`.
+
 $ source venv/bin/activate
 
 (venv) $ python --version

src/yen/__init__.py

@@ -1,12 +1,13 @@
 """yen - Yet another Python environment manager."""
+import os
 import os.path
 import subprocess
 import tarfile
 
 from yen.downloader import download
 from yen.github import NotAvailable, resolve_python_version
 
-PYTHON_INSTALLS_PATH = os.path.expanduser("~/.yen_pythons")
+PYTHON_INSTALLS_PATH = os.getenv("YEN_PYTHONS_PATH") or os.path.expanduser("~/.yen_pythons")
 
 
 def ensure_python(python_version: str) -> tuple[str, str]:

yen-rs/src/main.rs

@@ -22,7 +22,12 @@ lazy_static! {
         "https://api.github.com/repos/indygreg/python-build-standalone/releases/latest";
     static ref RE: Regex = Regex::new(r"cpython-(\d+\.\d+.\d+)").expect("Unable to create regex!");
     static ref MUSL: Regex = Regex::new(r"GNU|GLIBC|glibc").expect("Unable to create regex!");
-    static ref PYTHON_INSTALLS_PATH: PathBuf = home_dir().join(".yen_pythons");
+    static ref PYTHON_INSTALLS_PATH: PathBuf = {
+        match std::env::var("YEN_PYTHONS_PATH") {
+            Ok(yen_pythons_path) => PathBuf::from(yen_pythons_path),
+            Err(_) => home_dir().join(".yen_pythons"),
+        }
+    };
     static ref YEN_CLIENT: Client = yen_client();
 }