fix(cli): apply `.taurignore` rules to workspace members, closes #5355 (#5460)

Co-authored-by: Lucas Nogueira <lucas@tauri.studio>

.changes/cli-ignore-workspace-members.md

@@ -0,0 +1,5 @@
+---
+"cli.rs": patch
+---
+
+Ignore workspace members in dev watcher if they are ignored by `.taurignore`

tooling/cli/Cargo.lock

@@ -481,6 +481,12 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "common-path"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2382f75942f4b3be3690fe4f86365e9c853c1587d6ee58212cebf6e2a9ccd101"
+
 [[package]]
 name = "console"
 version = "0.15.0"
@@ -3242,6 +3248,7 @@ dependencies = [
  "base64",
  "clap 4.0.9",
  "colored",
+ "common-path",
  "ctrlc",
  "dialoguer",
  "env_logger",

tooling/cli/Cargo.toml

@@ -83,6 +83,7 @@ html5ever = "0.25"
 infer = "0.9"
 kuchiki = "0.8"
 tokio = { version = "1", features = ["macros", "sync"] }
+common-path = "1"
 
 [target."cfg(windows)".dependencies]
 winapi = { version = "0.3", features = [ "handleapi", "processenv", "winbase", "wincon", "winnt" ] }

tooling/cli/src/interface/rust.rs

@@ -4,8 +4,9 @@
 
 use std::{
   collections::HashMap,
+  ffi::OsStr,
   fs::{File, FileType},
-  io::{Read, Write},
+  io::{BufRead, Read, Write},
   path::{Path, PathBuf},
   process::{Command, ExitStatus},
   str::FromStr,
@@ -20,6 +21,7 @@ use std::{
 use anyhow::Context;
 #[cfg(target_os = "linux")]
 use heck::ToKebabCase;
+use ignore::gitignore::{Gitignore, GitignoreBuilder};
 use log::{debug, info};
 use notify::RecursiveMode;
 use notify_debouncer_mini::new_debouncer;
@@ -255,6 +257,59 @@ impl Interface for Rust {
   }
 }
 
+struct IgnoreMatcher(Vec<Gitignore>);
+
+impl IgnoreMatcher {
+  fn is_ignore(&self, path: &Path, is_dir: bool) -> bool {
+    for gitignore in &self.0 {
+      if gitignore.matched(path, is_dir).is_ignore() {
+        return true;
+      }
+    }
+    false
+  }
+}
+
+fn build_ignore_matcher(dir: &Path) -> IgnoreMatcher {
+  let mut matchers = Vec::new();
+
+  // ignore crate doesn't expose an API to build `ignore::gitignore::GitIgnore`
+  // with custom ignore file names so we have to walk the directory and collect
+  // our custom ignore files and add it using `ignore::gitignore::GitIgnoreBuilder::add`
+  for entry in ignore::WalkBuilder::new(dir)
+    .require_git(false)
+    .ignore(false)
+    .overrides(
+      ignore::overrides::OverrideBuilder::new(dir)
+        .add(".taurignore")
+        .unwrap()
+        .build()
+        .unwrap(),
+    )
+    .build()
+    .flatten()
+  {
+    let path = entry.path();
+    if path.file_name() == Some(OsStr::new(".taurignore")) {
+      let mut ignore_builder = GitignoreBuilder::new(path.parent().unwrap());
+
+      ignore_builder.add(path);
+
+      if let Ok(ignore_file) = std::env::var("TAURI_DEV_WATCHER_IGNORE_FILE") {
+        ignore_builder.add(dir.join(ignore_file));
+      }
+
+      for line in crate::dev::TAURI_DEV_WATCHER_GITIGNORE.lines().flatten() {
+        let _ = ignore_builder.add_line(None, &line);
+      }
+
+      matchers.push(ignore_builder.build().unwrap());
+    }
+  }
+
+  IgnoreMatcher(matchers)
+}
+
 fn lookup<F: FnMut(FileType, PathBuf)>(dir: &Path, mut f: F) {
   let mut default_gitignore = std::env::temp_dir();
   default_gitignore.push(".tauri-dev");
@@ -365,6 +420,10 @@ impl Rust {
         .unwrap_or_else(|| vec![tauri_path])
     };
 
+    let watch_folders = watch_folders.iter().map(Path::new).collect::<Vec<_>>();
+    let common_ancestor = common_path::common_path_all(watch_folders.clone()).unwrap();
+    let ignore_matcher = build_ignore_matcher(&common_ancestor);
+
     let mut watcher = new_debouncer(Duration::from_secs(1), None, move |r| {
       if let Ok(events) = r {
         tx.send(events).unwrap()
@@ -372,20 +431,22 @@ impl Rust {
     })
     .unwrap();
     for path in watch_folders {
-      info!("Watching {} for changes...", path.display());
-      lookup(&path, |file_type, p| {
-        if p != path {
-          debug!("Watching {} for changes...", p.display());
-          let _ = watcher.watcher().watch(
-            &p,
-            if file_type.is_dir() {
-              RecursiveMode::Recursive
-            } else {
-              RecursiveMode::NonRecursive
-            },
-          );
-        }
-      });
+      if !ignore_matcher.is_ignore(path, true) {
+        info!("Watching {} for changes...", path.display());
+        lookup(path, |file_type, p| {
+          if p != path {
+            debug!("Watching {} for changes...", p.display());
+            let _ = watcher.watcher().watch(
+              &p,
+              if file_type.is_dir() {
+                RecursiveMode::Recursive
+              } else {
+                RecursiveMode::NonRecursive
+              },
+            );
+          }
+        });
+      }
     }
 
     loop {
@@ -394,33 +455,35 @@ impl Rust {
           let on_exit = on_exit.clone();
           let event_path = event.path;
 
-          if is_configuration_file(&event_path) {
-            info!("Tauri configuration changed. Rewriting manifest...");
-            let config = reload_config(options.config.as_deref())?;
-            self.app_settings.manifest =
-              rewrite_manifest(config.lock().unwrap().as_ref().unwrap())?;
-          } else {
-            info!(
-              "File {} changed. Rebuilding application...",
-              event_path
-                .strip_prefix(&app_path)
-                .unwrap_or(&event_path)
-                .display()
-            );
-            // When tauri.conf.json is changed, rewrite_manifest will be called
-            // which will trigger the watcher again
-            // So the app should only be started when a file other than tauri.conf.json is changed
-            let mut p = process.lock().unwrap();
-            p.kill().with_context(|| "failed to kill app process")?;
-            // wait for the process to exit
-            loop {
-              if let Ok(Some(_)) = p.try_wait() {
-                break;
+          if !ignore_matcher.is_ignore(&event_path, event_path.is_dir()) {
+            if is_configuration_file(&event_path) {
+              info!("Tauri configuration changed. Rewriting manifest...");
+              let config = reload_config(options.config.as_deref())?;
+              self.app_settings.manifest =
+                rewrite_manifest(config.lock().unwrap().as_ref().unwrap())?;
+            } else {
+              info!(
+                "File {} changed. Rebuilding application...",
+                event_path
+                  .strip_prefix(&app_path)
+                  .unwrap_or(&event_path)
+                  .display()
+              );
+              // When tauri.conf.json is changed, rewrite_manifest will be called
+              // which will trigger the watcher again
+              // So the app should only be started when a file other than tauri.conf.json is changed
+              let mut p = process.lock().unwrap();
+              p.kill().with_context(|| "failed to kill app process")?;
+              // wait for the process to exit
+              loop {
+                if let Ok(Some(_)) = p.try_wait() {
+                  break;
+                }
               }
+              *p = self.run_dev(options.clone(), move |status, reason| {
+                on_exit(status, reason)
+              })?;
             }
-            *p = self.run_dev(options.clone(), move |status, reason| {
-              on_exit(status, reason)
-            })?;
           }
         }
       }