add support for detecting $VIRTUAL_ENV

Author: pantheraleo-7

crates/pet-global-virtualenvs/src/lib.rs

@@ -56,6 +56,7 @@ fn get_global_virtualenv_dirs(
 }
 
 pub fn list_global_virtual_envs_paths(
+    virtual_env_env_var: Option<String>,
     work_on_home_env_var: Option<String>,
     xdg_data_home: Option<String>,
     user_home: Option<PathBuf>,
@@ -73,6 +74,13 @@ pub fn list_global_virtual_envs_paths(
         }
     }
 
+    if let Some(virtual_env) = virtual_env_env_var {
+        let virtual_env = norm_case(expand_path(PathBuf::from(virtual_env)));
+        if virtual_env.exists() {
+            python_envs.push(virtual_env);
+        }
+    }
+
     python_envs.sort();
     python_envs.dedup();
 

crates/pet/src/find.rs

@@ -160,6 +160,7 @@ pub fn find_and_report_envs(
 
                 let search_paths: Vec<PathBuf> = [
                     list_global_virtual_envs_paths(
+                        environment.get_env_var("VIRTUAL_ENV".into()),
                         environment.get_env_var("WORKON_HOME".into()),
                         environment.get_env_var("XDG_DATA_HOME".into()),
                         environment.get_user_home(),