From c50f5c88126d60935864d3d6b1223da5bf59dac1 Mon Sep 17 00:00:00 2001
From: RGBCube <git@rgbcu.be>
Date: Wed, 11 Jun 2025 23:54:19 +0300
Subject: [PATCH] config: integrate default config

---
 config.toml   |  4 ++--
 src/config.rs | 20 ++++++++++++++------
 src/main.rs   |  6 +++---
 3 files changed, 19 insertions(+), 11 deletions(-)

diff --git a/config.toml b/config.toml
index a89f807..ce2dd33 100644
--- a/config.toml
+++ b/config.toml
@@ -37,11 +37,11 @@ cpu.governor = "performance"
 cpu.energy-performance-preference = "performance"
 cpu.turbo = true
 
-# Performance mode when charging.
+# Performance mode when not discharging.
 [[rule]]
 priority = 70
 if.all = [
-  "?charging",
+  { not = "?discharging" },
   { value = "%cpu-usage", is-more-than = 0.1 },
   { value = "$cpu-temperature", is-less-than = 80.0 },
 ]
diff --git a/src/config.rs b/src/config.rs
index b3d214e..ef2e14d 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -471,13 +471,21 @@ pub struct DaemonConfig {
 }
 
 impl DaemonConfig {
-    pub fn load_from(path: &Path) -> anyhow::Result<Self> {
-        let contents = fs::read_to_string(path).with_context(|| {
-            format!("failed to read config from '{path}'", path = path.display())
-        })?;
+    pub fn load_from(path: Option<&Path>) -> anyhow::Result<Self> {
+        let contents = if let Some(path) = path {
+            &fs::read_to_string(path).with_context(|| {
+                format!("failed to read config from '{path}'", path = path.display())
+            })?
+        } else {
+            include_str!("../config.toml")
+        };
 
-        let mut config: Self = toml::from_str(&contents)
-            .with_context(|| format!("failed to parse file at '{path}'", path = path.display(),))?;
+        let mut config: Self = toml::from_str(contents).with_context(|| {
+            path.map_or(
+                "failed to parse builtin default config, this is a bug".to_owned(),
+                |p| format!("failed to parse file at '{path}'", path = p.display()),
+            )
+        })?;
 
         {
             let mut priorities = Vec::with_capacity(config.rules.len());
diff --git a/src/main.rs b/src/main.rs
index feed86a..bc25436 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -35,7 +35,7 @@ enum Command {
 
         /// The daemon config path.
         #[arg(long, env = "WATT_CONFIG")]
-        config: PathBuf,
+        config: Option<PathBuf>,
     },
 
     /// CPU metadata and modification utility.
@@ -86,8 +86,8 @@ fn real_main() -> anyhow::Result<()> {
 
     match cli.command {
         Command::Watt { config, .. } => {
-            let config =
-                config::DaemonConfig::load_from(&config).context("failed to load daemon config")?;
+            let config = config::DaemonConfig::load_from(config.as_deref())
+                .context("failed to load daemon config")?;
 
             daemon::run(config)
         }