feat(config): add backend option

espanso-config/src/config/mod.rs

@@ -30,6 +30,7 @@ pub(crate) mod store;
 pub trait Config {
   fn label(&self) -> &str;
   fn match_paths(&self) -> &[String];
+  fn backend(&self) -> Backend;
 
   fn is_match(&self, app: &AppProperties) -> bool;
 }
@@ -47,6 +48,13 @@ pub struct AppProperties<'a> {
   pub exec: Option<&'a str>,
 }
 
+#[derive(Debug, Copy, Clone)]
+pub enum Backend {
+  Inject,
+  Clipboard,
+  Auto,
+}
+
 pub fn load_store(config_dir: &Path) -> Result<impl ConfigStore> {
   store::DefaultConfigStore::load(config_dir)
 }

espanso-config/src/config/parse/mod.rs

@@ -27,6 +27,8 @@ mod yaml;
 pub(crate) struct ParsedConfig {
   pub label: Option<String>,
 
+  pub backend: Option<String>,
+
   // Includes
   pub includes: Option<Vec<String>>,
   pub excludes: Option<Vec<String>>,

espanso-config/src/config/parse/yaml.rs

@@ -30,6 +30,9 @@ pub(crate) struct YAMLConfig {
   #[serde(default)]
   pub label: Option<String>,
 
+  #[serde(default)]
+  pub backend: Option<String>,
+
   #[serde(default)]
   pub includes: Option<Vec<String>>,
 
@@ -78,7 +81,7 @@ impl TryFrom<YAMLConfig> for ParsedConfig {
   fn try_from(yaml_config: YAMLConfig) -> Result<Self, Self::Error> {
     Ok(Self {
       label: yaml_config.label,
-
+      backend: yaml_config.backend,
       use_standard_includes: yaml_config.use_standard_includes,
       includes: yaml_config.includes,
       extra_includes: yaml_config.extra_includes,
@@ -103,6 +106,7 @@ mod tests {
     let config = YAMLConfig::parse_from_str(
       r#"
     label: "test"
+    backend: clipboard
       
     use_standard_includes: true
     includes: ["test1"]
@@ -123,6 +127,9 @@ mod tests {
       parsed_config,
       ParsedConfig {
         label: Some("test".to_string()),
+
+        backend: Some("clipboard".to_string()),
+
         use_standard_includes: Some(true),
         includes: Some(vec!["test1".to_string()]),
         extra_includes: Some(vec!["test2".to_string()]),

espanso-config/src/config/resolve.rs

@@ -17,9 +17,10 @@
  * along with espanso.  If not, see <https://www.gnu.org/licenses/>.
  */
 
-use super::{parse::ParsedConfig, path::calculate_paths, util::os_matches, AppProperties, Config};
+use super::{AppProperties, Backend, Config, parse::ParsedConfig, path::calculate_paths, util::os_matches};
 use crate::merge;
 use anyhow::Result;
+use log::error;
 use regex::Regex;
 use std::iter::FromIterator;
 use std::{collections::HashSet, path::Path};
@@ -109,6 +110,18 @@ impl Config for ResolvedConfig {
     // All the filters that have been specified must be true to define a match
     is_os_match && is_exec_match && is_title_match && is_class_match
   }
+
+  fn backend(&self) -> Backend {
+    match self.parsed.backend.as_deref().map(|b| b.to_lowercase()).as_deref() {
+      Some("clipboard") => Backend::Clipboard,
+      Some("inject") => Backend::Inject,
+      Some("auto") => Backend::Auto,
+      err => {
+        error!("invalid backend specified {:?}, falling back to Auto", err);
+        Backend::Auto
+      }
+    }
+  }
 }
 
 impl ResolvedConfig {
@@ -164,6 +177,7 @@ impl ResolvedConfig {
       parent,
       // Fields
       label,
+      backend,
       includes,
       excludes,
       extra_includes,

espanso-config/src/config/store.rs

@@ -145,6 +145,10 @@ mod tests {
     fn is_match(&self, _: &crate::config::AppProperties) -> bool {
       self.is_match
     }
+
+    fn backend(&self) -> crate::config::Backend {
+      unimplemented!()
+    }
   }
 
   #[test]

espanso-config/src/legacy/config.rs

@@ -509,7 +509,7 @@ impl LegacyConfig {
 
 fn triggers_for_match(m: &Value) -> Vec<String> {
   if let Some(triggers) = m.get("triggers").and_then(|v| v.as_sequence()) {
-    triggers.into_iter().filter_map(|v| v.as_str().map(|s| s.to_string())).collect()
+    triggers.iter().filter_map(|v| v.as_str().map(|s| s.to_string())).collect()
   } else if let Some(trigger) = m.get("trigger").and_then(|v| v.as_str()) {
     vec![trigger.to_string()]
   } else {
@@ -517,6 +517,7 @@ fn triggers_for_match(m: &Value) -> Vec<String> {
   }
 }
 
+#[allow(dead_code)]
 fn replace_for_match(m: &Value) -> String {
   m.get("replace").and_then(|v| v.as_str()).expect("match is missing replace field").to_string()
 }
@@ -752,6 +753,7 @@ impl LegacyConfigSet {
 
 // Error handling
 #[derive(Debug, PartialEq)]
+#[allow(dead_code)]
 pub enum ConfigLoadError {
   FileNotFound,
   UnableToReadFile,

espanso-config/src/legacy/mod.rs

@@ -92,9 +92,10 @@ fn split_config(config: LegacyConfig) -> (LegacyInteropConfig, LegacyMatchGroup)
 
 struct LegacyInteropConfig {
   pub name: String,
-
   match_paths: Vec<String>,
 
+  config: LegacyConfig,
+
   filter_title: Option<Regex>,
   filter_class: Option<Regex>,
   filter_exec: Option<Regex>,
@@ -103,6 +104,7 @@ struct LegacyInteropConfig {
 impl From<config::LegacyConfig> for LegacyInteropConfig {
   fn from(config: config::LegacyConfig) -> Self {
     Self {
+      config: config.clone(),
       name: config.name.clone(),
       match_paths: vec![config.name],
       filter_title: if !config.filter_title.is_empty() {
@@ -126,7 +128,15 @@ impl From<config::LegacyConfig> for LegacyInteropConfig {
 
 impl Config for LegacyInteropConfig {
   fn label(&self) -> &str {
-    &self.name
+    &self.config.name
+  }
+
+  fn backend(&self) -> crate::config::Backend {
+    match self.config.backend {
+      config::BackendType::Inject => crate::config::Backend::Inject,
+      config::BackendType::Clipboard => crate::config::Backend::Clipboard,
+      config::BackendType::Auto => crate::config::Backend::Auto,
+    }
   }
 
   fn match_paths(&self) -> &[String] {
@@ -237,7 +247,9 @@ mod tests {
   #[test]
   fn load_legacy_works_correctly() {
     use_test_directory(|base, user, packages| {
-      std::fs::write(base.join("default.yml"), r#"
+      std::fs::write(
+        base.join("default.yml"),
+        r#"
       backend: Clipboard
 
       global_vars:
@@ -247,25 +259,35 @@ mod tests {
       matches:
         - trigger: "hello"
           replace: "world"
-      "#).unwrap();
+      "#,
+      )
+      .unwrap();
 
-      std::fs::write(user.join("specific.yml"), r#"
+      std::fs::write(
+        user.join("specific.yml"),
+        r#"
       name: specific
       parent: default
 
       matches:
         - trigger: "foo"
           replace: "bar"
-      "#).unwrap();
+      "#,
+      )
+      .unwrap();
 
-      std::fs::write(user.join("separate.yml"), r#"
+      std::fs::write(
+        user.join("separate.yml"),
+        r#"
       name: separate
       filter_title: "Google"
 
       matches:
         - trigger: "eren"
           replace: "mikasa"
-      "#).unwrap();
+      "#,
+      )
+      .unwrap();
 
       let (config_store, match_store) = load(base, packages).unwrap();
 
@@ -286,44 +308,91 @@ mod tests {
       });
       assert_eq!(default_fallback.match_paths().len(), 1);
 
-      assert_eq!(match_store.query(default_config.match_paths()).matches.len(), 2); 
-      assert_eq!(match_store.query(default_config.match_paths()).global_vars.len(), 1); 
+      assert_eq!(
+        match_store
+          .query(default_config.match_paths())
+          .matches
+          .len(),
+        2
+      );
+      assert_eq!(
+        match_store
+          .query(default_config.match_paths())
+          .global_vars
+          .len(),
+        1
+      );
 
-      assert_eq!(match_store.query(active_config.match_paths()).matches.len(), 3); 
-      assert_eq!(match_store.query(active_config.match_paths()).global_vars.len(), 1); 
+      assert_eq!(
+        match_store.query(active_config.match_paths()).matches.len(),
+        3
+      );
+      assert_eq!(
+        match_store
+          .query(active_config.match_paths())
+          .global_vars
+          .len(),
+        1
+      );
 
-      assert_eq!(match_store.query(default_fallback.match_paths()).matches.len(), 2); 
-      assert_eq!(match_store.query(default_fallback.match_paths()).global_vars.len(), 1); 
+      assert_eq!(
+        match_store
+          .query(default_fallback.match_paths())
+          .matches
+          .len(),
+        2
+      );
+      assert_eq!(
+        match_store
+          .query(default_fallback.match_paths())
+          .global_vars
+          .len(),
+        1
+      );
     });
   }
 
   #[test]
   fn load_legacy_with_packages() {
-    use_test_directory(|base, user, packages| {
-      std::fs::write(base.join("default.yml"), r#"
+    use_test_directory(|base, _, packages| {
+      std::fs::write(
+        base.join("default.yml"),
+        r#"
       backend: Clipboard
 
       matches:
         - trigger: "hello"
           replace: "world"
-      "#).unwrap();
+      "#,
+      )
+      .unwrap();
 
       create_dir_all(packages.join("test-package")).unwrap();
-      std::fs::write(packages.join("test-package").join("package.yml"), r#"
+      std::fs::write(
+        packages.join("test-package").join("package.yml"),
+        r#"
       name: test-package 
       parent: default
 
       matches:
         - trigger: "foo"
           replace: "bar"
-      "#).unwrap();
+      "#,
+      )
+      .unwrap();
 
       let (config_store, match_store) = load(base, packages).unwrap();
 
       let default_config = config_store.default();
       assert_eq!(default_config.match_paths().len(), 1);
 
-      assert_eq!(match_store.query(default_config.match_paths()).matches.len(), 2); 
+      assert_eq!(
+        match_store
+          .query(default_config.match_paths())
+          .matches
+          .len(),
+        2
+      );
     });
   }
 }