feat: Support CVE_CONFIG environment variable

Author: sya-ri

.changeset/tasty-maps-draw.md

@@ -0,0 +1,5 @@
+---
+"css-var-extract": minor
+---
+
+Support `CVE_CONFIG` environment variable

README.md

@@ -200,7 +200,17 @@ cve watch
 You can create `cve.config.json` and change settings.
 If you are using a plugin, it also supports inline configuration.
 
-### cve.config.json
+You can also override the settings by the `CVE_CONFIG` environment variable.
+
+### Priority
+
+The lower the number, the higher the priority.
+
+1. Environment variable: `CVE_CONFIG`
+2. Inline config
+3. File config `cve.config.json`
+
+### JSON
 
 ```json
 {

packages/css-var-extract/src/config.ts

@@ -34,15 +34,21 @@ export const getConfig = (
         "cve.config.json",
     );
     const exists = fs.existsSync(configFilePathJson);
+    const env = process.env.CVE_CONFIG;
+    const envConfig = env ? JSON.parse(env) : {};
 
     let config: Config;
     if (exists) {
         config = configSchema.parse({
             ...JSON.parse(fs.readFileSync(configFilePathJson, "utf-8")),
             ...inlineConfig,
+            ...envConfig,
         });
     } else {
-        config = configSchema.parse(inlineConfig);
+        config = configSchema.parse({
+            ...inlineConfig,
+            ...envConfig,
+        });
         if (!noCreate) {
             fs.writeFileSync(
                 configFilePathJson,