Merge pull request #59 from dalance/master

Fix workspace support

Cargo.toml

@@ -16,7 +16,7 @@ csv = "1"
 serde = "1"
 serde_derive = "1"
 serde_json = "1"
-cargo_metadata = "0.14.0"
+cargo_metadata = "0.15.0"
 semver = "1.0"
 clap = { version = "3.1.17", features = ["derive"] }
 atty = "0.2"

src/lib.rs

@@ -1,4 +1,4 @@
-use anyhow::{anyhow, Result};
+use anyhow::Result;
 use cargo_metadata::{
  DepKindInfo, DependencyKind, Metadata, MetadataCommand, Node, NodeDep, Package, PackageId,
 };
@@ -20,19 +20,25 @@ fn normalize(license_string: &str) -> String {
 fn get_node_name_filter(metadata: &Metadata, opt: &GetDependenciesOpt) -> Result<HashSet<String>> {
  let mut filter = HashSet::new();
 
- let root = metadata
- .root_package()
- .ok_or_else(|| anyhow!("No root package"))?;
+ let roots = if let Some(root) = metadata.root_package() {
+ vec![root]
+ } else {
+ metadata.workspace_packages()
+ };
 
  if opt.root_only {
- filter.insert(root.name.clone());
+ for root in roots {
+ filter.insert(root.name.clone());
+ }
  return Ok(filter);
  }
 
  if opt.direct_deps_only {
- filter.insert(root.name.clone());
- for package in root.dependencies.iter() {
- filter.insert(package.name.clone());
+ for root in roots {
+ filter.insert(root.name.clone());
+ for package in root.dependencies.iter() {
+ filter.insert(package.name.clone());
+ }
  }
  }
  Ok(filter)