[Chore] Handle 'temp_path' as an actual 'Path' instead of 'String'

Problem: 'temp_path' and 'lock_path' are handled as 'String'.
This can be a problem when the 'temp_path' directory is a symlink
on the target system, e.g. this is the case with the default
'/tmp' and macOS, where this directory is actually a symlink to '/private/tmp'.

Solution: Handle 'temp_path' and 'lock_path' as actual Paths.
Also, canonicalize 'temp_path' to avoid canary file path mismatches when checking
filesystem events.

As a side effect, also update the 'notify' dependency to the latest stable version.

1 files changed, 5 insertions, 3 deletions

diff --git a/src/lib.rs b/src/lib.rs
index 738fa81..bf1a6dc 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -12,10 +12,12 @@ use thiserror::Error;
 
 use flexi_logger::*;
 
-pub fn make_lock_path(temp_path: &str, closure: &str) -> String {
+use std::path::{Path, PathBuf};
+
+pub fn make_lock_path(temp_path: &Path, closure: &str) -> PathBuf {
     let lock_hash =
         &closure["/nix/store/".len()..closure.find('-').unwrap_or_else(|| closure.len())];
-    format!("{}/deploy-rs-canary-{}", temp_path, lock_hash)
+    temp_path.join(format!("deploy-rs-canary-{}", lock_hash))
 }
 
 const fn make_emoji(level: log::Level) -> &'static str {
@@ -159,7 +161,7 @@ pub struct CmdOverrides {
     pub auto_rollback: Option<bool>,
     pub hostname: Option<String>,
     pub magic_rollback: Option<bool>,
-    pub temp_path: Option<String>,
+    pub temp_path: Option<PathBuf>,
     pub confirm_timeout: Option<u16>,
     pub sudo: Option<String>,
     pub dry_activate: bool,