Ignore nonexistent config imports instead of raising an error

Fixes: #4330.

CHANGELOG.md

@@ -7,6 +7,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ## 0.7.0-dev
 
+### Changed
+
+- Nonexistent config imports are ignored instead of raising an error
+
 ### Fixed
 
 - Wide characters sometimes being cut off

alacritty.yml

@@ -4,7 +4,7 @@
 #
 # These configuration files will be loaded in order, replacing values in files
 # loaded earlier with those loaded later in the chain. The file itself will
-# always be loaded last.
+# always be loaded last. If an import path cannot be found it will be skipped.
 #import:
 #  - /path/to/alacritty.yml
 

alacritty/src/config/mod.rs

@@ -222,6 +222,12 @@ fn load_imports(config: &Value, config_paths: &mut Vec<PathBuf>, recursion_limit
             },
         };
 
+        if !path.exists() {
+            info!(target: LOG_TARGET_CONFIG, "Skipping importing config; not found:");
+            info!(target: LOG_TARGET_CONFIG, "  {:?}", path.display());
+            continue;
+        }
+
         match parse_config(&path, config_paths, recursion_limit - 1) {
             Ok(config) => merged = serde_utils::merge(merged, config),
             Err(err) => {