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/// Uniformly operates ZELLIJ* environment variables
use anyhow::Result;
use serde::{Deserialize, Serialize};
use std::{
collections::{BTreeMap, HashMap},
env::{set_var, var},
};
use std::fmt;
pub const ZELLIJ_ENV_KEY: &str = "ZELLIJ";
pub fn get_zellij() -> Result<String> {
Ok(var(ZELLIJ_ENV_KEY)?)
}
pub fn set_zellij(v: String) {
set_var(ZELLIJ_ENV_KEY, v);
}
pub const SESSION_NAME_ENV_KEY: &str = "ZELLIJ_SESSION_NAME";
pub fn get_session_name() -> Result<String> {
Ok(var(SESSION_NAME_ENV_KEY)?)
}
pub fn set_session_name(v: String) {
set_var(SESSION_NAME_ENV_KEY, v);
}
pub const SOCKET_DIR_ENV_KEY: &str = "ZELLIJ_SOCKET_DIR";
pub fn get_socket_dir() -> Result<String> {
Ok(var(SOCKET_DIR_ENV_KEY)?)
}
/// Manage ENVIRONMENT VARIABLES from the configuration and the layout files
#[derive(Default, Clone, PartialEq, Serialize, Deserialize)]
pub struct EnvironmentVariables {
env: HashMap<String, String>,
}
impl fmt::Debug for EnvironmentVariables {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
let mut stable_sorted = BTreeMap::new();
for (env_var_name, env_var_value) in self.env.iter() {
stable_sorted.insert(env_var_name, env_var_value);
}
write!(f, "{:#?}", stable_sorted)
}
}
impl EnvironmentVariables {
/// Merges two structs, keys from `other` supersede keys from `self`
pub fn merge(&self, other: Self) -> Self {
let mut env = self.clone();
env.env.extend(other.env);
env
}
pub fn from_data(data: HashMap<String, String>) -> Self {
EnvironmentVariables { env: data }
}
/// Set all the ENVIRONMENT VARIABLES, that are configured
/// in the configuration and layout files
pub fn set_vars(&self) {
for (k, v) in &self.env {
set_var(k, v);
}
}
}
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