feat(cli): use deno fmt for lock and coverage files (#13018)

cli/lockfile.rs

@@ -12,6 +12,8 @@ use std::path::PathBuf;
 use std::rc::Rc;
 use std::sync::Arc;
 
+use crate::tools::fmt::format_json;
+
 #[derive(Debug, Clone)]
 pub struct Lockfile {
   write: bool,
@@ -42,13 +44,15 @@ impl Lockfile {
     }
     let j = json!(&self.map);
     let s = serde_json::to_string_pretty(&j).unwrap();
+
+    let format_s = format_json(&s, &Default::default()).unwrap_or(s);
     let mut f = std::fs::OpenOptions::new()
       .write(true)
       .create(true)
       .truncate(true)
       .open(&self.filename)?;
     use std::io::Write;
-    f.write_all(s.as_bytes())?;
+    f.write_all(format_s.as_bytes())?;
     debug!("lockfile write {}", self.filename.display());
     Ok(())
   }

cli/tools/coverage.rs

@@ -6,6 +6,7 @@ use crate::flags::Flags;
 use crate::fs_util::collect_files;
 use crate::proc_state::ProcState;
 use crate::source_maps::SourceMapGetter;
+use crate::tools::fmt::format_json;
 
 use deno_ast::swc::common::Span;
 use deno_ast::MediaType;
@@ -158,8 +159,11 @@ impl CoverageCollector {
       let filepath = self.dir.join(filename);
 
       let mut out = BufWriter::new(File::create(filepath)?);
-      serde_json::to_writer_pretty(&mut out, &script_coverage)?;
-      out.write_all(b"\n")?;
+      let coverage = serde_json::to_string(&script_coverage)?;
+      let formated_coverage =
+        format_json(&coverage, &Default::default()).unwrap_or(coverage);
+
+      out.write_all(formated_coverage.as_bytes())?;
       out.flush()?;
     }
 

cli/tools/fmt.rs

@@ -209,7 +209,7 @@ fn format_markdown(
 /// Formats JSON and JSONC using the rules provided by .deno()
 /// of configuration builder of <https://github.com/dprint/dprint-plugin-json>.
 /// See <https://git.io/Jt4ht> for configuration.
-fn format_json(
+pub fn format_json(
   file_text: &str,
   fmt_options: &FmtOptionsConfig,
 ) -> Result<String, String> {