feat: autofix root-package-private-field

src/rules/root_package_private_field.rs

@@ -1,13 +1,16 @@
-use super::{Issue, IssueLevel};
+use super::{Issue, IssueLevel, PackageType};
+use anyhow::Result;
 use colored::Colorize;
-use std::borrow::Cow;
+use std::{borrow::Cow, fs, path::PathBuf};
 
 #[derive(Debug)]
-pub struct RootPackagePrivateFieldIssue;
+pub struct RootPackagePrivateFieldIssue {
+    fixed: bool,
+}
 
 impl RootPackagePrivateFieldIssue {
     pub fn new() -> Box<Self> {
-        Box::new(Self)
+        Box::new(Self { fixed: false })
     }
 }
 
@@ -17,7 +20,10 @@ impl Issue for RootPackagePrivateFieldIssue {
     }
 
     fn level(&self) -> IssueLevel {
-        IssueLevel::Error
+        match self.fixed {
+            true => IssueLevel::Fixed,
+            false => IssueLevel::Error,
+        }
     }
 
     fn message(&self) -> String {
@@ -37,6 +43,26 @@ impl Issue for RootPackagePrivateFieldIssue {
     fn why(&self) -> Cow<'static, str> {
         Cow::Borrowed("The root package.json should be private to prevent accidentaly publishing it to a registry.")
     }
+
+    fn fix(&mut self, package_type: &PackageType) -> Result<()> {
+        if let PackageType::Root = package_type {
+            let path = PathBuf::from("package.json");
+            let value = fs::read_to_string(&path)?;
+            let mut value = serde_json::from_str::<serde_json::Value>(&value)?;
+
+            value.as_object_mut().unwrap().insert(
+                "private".to_string(),
+                serde_json::Value::String("true".to_string()),
+            );
+
+            let value = serde_json::to_string_pretty(&value)?;
+            fs::write(path, value)?;
+
+            self.fixed = true;
+        }
+
+        Ok(())
+    }
 }
 
 #[cfg(test)]