feat(monorepo): automatically set include-path for current directory

git-cliff-core/src/error.rs

@@ -101,6 +101,9 @@ pub enum Error {
 	/// Error that may occur while handling location of directories.
 	#[error("Directory error: `{0}`")]
 	DirsError(String),
+	/// Error that may occur while constructing patterns.
+	#[error("Pattern error: `{0}`")]
+	PatternError(#[from] glob::PatternError),
 }
 
 /// Result type of the core library.

git-cliff-core/src/repo.rs

@@ -39,7 +39,7 @@ const CHANGED_FILES_CACHE: &str = "changed_files_cache";
 pub struct Repository {
 	inner:                    GitRepository,
 	/// Repository path.
-	pub path:                 PathBuf,
+	path:                     PathBuf,
 	/// Cache path for the changed files of the commits.
 	changed_files_cache_path: PathBuf,
 }
@@ -74,6 +74,15 @@ impl Repository {
 		}
 	}
 
+	/// Returns the path of the repository.
+	pub fn path(&self) -> PathBuf {
+		let mut path = self.inner.path().to_path_buf();
+		if path.ends_with(".git") {
+			path.pop();
+		}
+		path
+	}
+
 	/// Parses and returns the commits.
 	///
 	/// Sorts the commits by their time.

git-cliff/Cargo.toml

@@ -57,6 +57,7 @@ env_logger = "=0.10.2"
 pprof = { version = "0.14", optional = true }
 rand = { version = "0.8.4", optional = true }
 url.workspace = true
+pathdiff = "0.2.3"
 
 [dependencies.git-cliff-core]
 version = "2.7.0" # managed by release.sh

git-cliff/src/lib.rs

@@ -40,6 +40,7 @@ use git_cliff_core::{
 	DEFAULT_CONFIG,
 	IGNORE_FILE,
 };
+use glob::Pattern;
 use std::env;
 use std::fs::{
 	self,
@@ -210,9 +211,27 @@ fn process_repository<'a>(
 			}
 		}
 	}
+
+	// Include only the current directory if not running from the root repository
+	let mut include_path = args.include_path.clone();
+	if let Some(mut path_diff) =
+		pathdiff::diff_paths(env::current_dir()?, repository.path())
+	{
+		if include_path.is_none() && path_diff != Path::new("") {
+			info!(
+				"Including changes from the current directory: {:?}",
+				path_diff.display()
+			);
+			path_diff.extend(["**", "*"]);
+			include_path = Some(vec![Pattern::new(
+				&path_diff.to_string_lossy().to_string(),
+			)?]);
+		}
+	}
+
 	let mut commits = repository.commits(
 		commit_range.as_deref(),
-		args.include_path.clone(),
+		include_path,
 		args.exclude_path.clone(),
 	)?;
 	if let Some(commit_limit_value) = config.git.limit_commits {
@@ -250,7 +269,7 @@ fn process_repository<'a>(
 		let commit = Commit::from(git_commit);
 		let commit_id = commit.id.to_string();
 		release.commits.push(commit);
-		release.repository = Some(repository.path.to_string_lossy().into_owned());
+		release.repository = Some(repository.path().to_string_lossy().into_owned());
 		if let Some(tag) = tags.get(&commit_id) {
 			release.version = Some(tag.name.to_string());
 			release.message.clone_from(&tag.message);

website/docs/usage/monorepos.md

@@ -4,16 +4,18 @@ sidebar_position: 5
 
 # Monorepos
 
-You can generate a changelog scoped to a specific directory via `--include-path` and `--exclude-path`.
-
-This requires changing the current working directory to the target folder. The included/excluded paths must be relative to the repository's root.
+You can generate a changelog scoped to a specific directory by just switching to that directory:
 
 ```bash
 cd packages/some_library
-git cliff --include-path "packages/some_library/**/*" --repository "../../"
+git cliff
 ```
 
+To include/exclude specific paths, use the `--include-path` and `--exclude-path` arguments:
+
 ```bash
 cd packages/some_library
-git cliff --include-path "packages/some_library/**/*" --repository "../../" --exclude-path ".github/*"
+git cliff --include-path "packages/some_library/**/*" --exclude-path ".github/*"
 ```
+
+These paths must be relative to the repository's root and should be a valid glob pattern.