From b09f1f958423dee8c235f2eeb9c148b73936830f Mon Sep 17 00:00:00 2001
From: Akshay <nerdy@peppe.rs>
Date: Sun, 24 Oct 2021 13:26:37 +0530
Subject: rework cli, fix is now a flag, implement dry-run mode

---
 bin/src/main.rs | 73 +++++++++++++++++++++++++++------------------------------
 1 file changed, 34 insertions(+), 39 deletions(-)

(limited to 'bin/src/main.rs')

diff --git a/bin/src/main.rs b/bin/src/main.rs
index 6f0343e..d0f69a0 100644
--- a/bin/src/main.rs
+++ b/bin/src/main.rs
@@ -6,55 +6,50 @@ mod traits;
 
 use std::io;
 
-use crate::{
-    err::{FixErr, StatixErr},
-    traits::WriteDiagnostic,
-};
+use crate::{err::{StatixErr, FixErr}, traits::WriteDiagnostic};
 
 use clap::Clap;
-use config::{FixConfig, LintConfig, Opts, SubCommand};
+use config::{FixConfig, LintConfig, Opts};
 use similar::TextDiff;
 
 fn _main() -> Result<(), StatixErr> {
     let opts = Opts::parse();
-    match opts.subcmd {
-        Some(SubCommand::Fix(_)) => {
-            let fix_config = FixConfig::from_opts(opts)?;
-            let vfs = fix_config.vfs()?;
-            for entry in vfs.iter() {
-                match fix::fix(entry.contents) {
-                    Ok(fix_result) => {
-                        let text_diff = TextDiff::from_lines(entry.contents, &fix_result.src);
-                        let old_file = format!("{}", entry.file_path.display());
-                        let new_file = format!("{} [fixed]", entry.file_path.display());
-                        println!(
-                            "{}",
-                            text_diff
-                                .unified_diff()
-                                .context_radius(4)
-                                .header(&old_file, &new_file)
-                        );
-                    }
-                    Err(e) => eprintln!("{}", FixErr::Parse(entry.file_path.to_path_buf(), e)),
+    if opts.fix {
+        let fix_config = FixConfig::from_opts(opts)?;
+        let vfs = fix_config.vfs()?;
+        for entry in vfs.iter() {
+            if let Some(fix_result) = fix::fix(entry.contents) {
+                if fix_config.diff_only {
+                    let text_diff = TextDiff::from_lines(entry.contents, &fix_result.src);
+                    let old_file = format!("{}", entry.file_path.display());
+                    let new_file = format!("{} [fixed]", entry.file_path.display());
+                    println!(
+                        "{}",
+                        text_diff
+                            .unified_diff()
+                            .context_radius(4)
+                            .header(&old_file, &new_file)
+                    );
+                } else {
+                    let path = entry.file_path;
+                    std::fs::write(path, &*fix_result.src).map_err(FixErr::InvalidPath)?;
                 }
             }
         }
-        None => {
-            let lint_config = LintConfig::from_opts(opts)?;
-            let vfs = lint_config.vfs()?;
-            let (lints, errors): (Vec<_>, Vec<_>) =
-                vfs.iter().map(lint::lint).partition(Result::is_ok);
-            let lint_results = lints.into_iter().map(Result::unwrap);
-            let errors = errors.into_iter().map(Result::unwrap_err);
+    } else {
+        let lint_config = LintConfig::from_opts(opts)?;
+        let vfs = lint_config.vfs()?;
+        let (lints, errors): (Vec<_>, Vec<_>) = vfs.iter().map(lint::lint).partition(Result::is_ok);
+        let lint_results = lints.into_iter().map(Result::unwrap);
+        let errors = errors.into_iter().map(Result::unwrap_err);
 
-            let mut stderr = io::stderr();
-            lint_results.for_each(|r| {
-                stderr.write(&r, &vfs, lint_config.format).unwrap();
-            });
-            errors.for_each(|e| {
-                eprintln!("{}", e);
-            });
-        }
+        let mut stdout = io::stdout();
+        lint_results.for_each(|r| {
+            stdout.write(&r, &vfs, lint_config.format).unwrap();
+        });
+        errors.for_each(|e| {
+            eprintln!("{}", e);
+        });
     }
     Ok(())
 }
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