feat: optionally use POP_LAUNCHER_LIB_DIR env variable

This environment variable describes where the pop-launcher distribution path exists. The default for this is `/usr/lib/pop-launcher`; however, some distributions would like to use `/usr/libexec/pop-launcher` instead.

Signed-off-by: Ryan Brue <[email protected]>

Author: ryanabx

justfile

@@ -12,10 +12,12 @@ base-dir := if rootdir == '' {
     rootdir / 'usr'
 }
 
+lib-path := 'lib'
+
 lib-dir := if rootdir == '' {
     base-dir / 'share'
 } else {
-    base-dir / 'lib'
+    base-dir / lib-path
 }
 
 bin-dir := base-dir / 'bin'

plugins/src/scripts/mod.rs

@@ -13,10 +13,6 @@ use std::process::Stdio;
 use tokio::io::AsyncBufReadExt;
 use tokio::process::Command;
 
-const LOCAL_PATH: &str = ".local/share/pop-launcher/scripts";
-const SYSTEM_ADMIN_PATH: &str = "/etc/pop-launcher/scripts";
-const DISTRIBUTION_PATH: &str = "/usr/lib/pop-launcher/scripts";
-
 pub async fn main() {
     let mut requests = json_input_stream(async_stdin());
 
@@ -103,13 +99,20 @@ impl App {
 
         let mut queue = VecDeque::new();
 
+        let local_path = ".local/share/pop-launcher/scripts";
+        let system_admin_path = "/etc/pop-launcher/scripts";
+        let distribution_path = &format!(
+            "{}/scripts",
+            option_env!("POP_LAUNCHER_LIB_DIR").unwrap_or("/usr/lib/pop-launcher")
+        );
+
         queue.push_back(
             dirs::home_dir()
                 .expect("user does not have home dir")
-                .join(LOCAL_PATH),
+                .join(local_path),
         );
-        queue.push_back(Path::new(SYSTEM_ADMIN_PATH).to_owned());
-        queue.push_back(Path::new(DISTRIBUTION_PATH).to_owned());
+        queue.push_back(Path::new(system_admin_path).to_owned());
+        queue.push_back(Path::new(distribution_path).to_owned());
 
         let script_sender = async move {
             while let Some(path) = queue.pop_front() {

src/lib.rs

@@ -6,34 +6,33 @@ pub mod config;
 
 pub use self::codec::*;
 
-use const_format::concatcp;
 use serde::{Deserialize, Serialize};
 use std::{
     borrow::Cow,
     path::{Path, PathBuf},
 };
 
-pub const LOCAL: &str = "~/.local/share/pop-launcher";
-pub const LOCAL_PLUGINS: &str = concatcp!(LOCAL, "/plugins");
+pub fn plugin_paths<'a>() -> impl Iterator<Item = PathBuf> {
+    let local = "~/.local/share/pop-launcher";
+    let local_plugins = format!("{}/plugins", local);
 
-pub const SYSTEM: &str = "/etc/pop-launcher";
-pub const SYSTEM_PLUGINS: &str = concatcp!(SYSTEM, "/plugins");
+    let system = "/etc/pop-launcher";
+    let system_plugins = format!("{}/plugins", system);
 
-pub const DISTRIBUTION: &str = "/usr/lib/pop-launcher";
-pub const DISTRIBUTION_PLUGINS: &str = concatcp!(DISTRIBUTION, "/plugins");
+    let distribution = option_env!("POP_LAUNCHER_LIB_DIR").unwrap_or("/usr/lib/pop-launcher");
+    let distribution_plugins = format!("{}/plugins", distribution);
 
-pub const PLUGIN_PATHS: &[&str] = &[LOCAL_PLUGINS, SYSTEM_PLUGINS, DISTRIBUTION_PLUGINS];
+    let plugin_paths = vec![local_plugins, system_plugins, distribution_plugins];
 
-pub fn plugin_paths() -> impl Iterator<Item = Cow<'static, Path>> {
-    PLUGIN_PATHS.iter().map(|path| {
+    plugin_paths.into_iter().map(|path| {
         #[allow(deprecated)]
         if let Some(path) = path.strip_prefix("~/") {
             let path = dirs::home_dir()
                 .expect("user does not have home dir")
                 .join(path);
-            Cow::Owned(path)
+            path
         } else {
-            Cow::Borrowed(Path::new(path))
+            Path::new(&path).to_owned()
         }
     })
 }