Warn on unexpected libstd dependence

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "zepter"
-version = "1.4.0"
+version = "1.4.1"
 edition = "2021"
 authors = [ "Oliver Tale-Yazdi" ]
 description = "Analyze, Fix and Format features in your Rust workspace."
@@ -42,7 +42,7 @@ glob = "0.3.1"
 lazy_static = "1.4.0"
 pretty_assertions = "1.4.0"
 rand = "0.8.5"
-rstest = "0.18.2"
+rstest = "0.19.0"
 serde = "1.0.197"
 zepter = { path = ".", features = ["testing"] }
 

src/cmd/lint/nostd.rs

@@ -45,7 +45,7 @@ impl NoStdCmd {
 }
 
 impl DefaultFeaturesDisabledCmd {
-	pub(crate) fn run(&self, _: &GlobalArgs) -> Result<(), String> {
+	pub(crate) fn run(&self, g: &GlobalArgs) -> Result<(), String> {
 		let meta = self.cargo_args.clone().with_workspace(true).load_metadata()?;
 		let pkgs = &meta.packages;
 		let mut cache = BTreeMap::new();
@@ -56,7 +56,7 @@ impl DefaultFeaturesDisabledCmd {
 
 		for lhs in pkgs.iter() {
 			// check if lhs supports no-std builds
-			if !Self::supports_nostd(lhs, &mut cache)? {
+			if !Self::supports_nostd(g, lhs, &mut cache)? {
 				continue;
 			}
 
@@ -67,7 +67,7 @@ impl DefaultFeaturesDisabledCmd {
 
 				let Some(rhs) = resolve_dep(lhs, dep, &meta) else { continue };
 
-				if !Self::supports_nostd(&rhs.pkg, &mut cache)? {
+				if !Self::supports_nostd(g, &rhs.pkg, &mut cache)? {
 					continue;
 				}
 
@@ -112,7 +112,11 @@ impl DefaultFeaturesDisabledCmd {
 		}
 	}
 
-	fn supports_nostd(krate: &Package, cache: &mut BTreeMap<String, bool>) -> Result<bool, String> {
+	fn supports_nostd(
+		g: &GlobalArgs,
+		krate: &Package,
+		cache: &mut BTreeMap<String, bool>,
+	) -> Result<bool, String> {
 		log::debug!("Checking if crate supports no-std: {}", krate.name);
 		if let Some(res) = cache.get(krate.manifest_path.as_str()) {
 			return Ok(*res)
@@ -134,6 +138,13 @@ impl DefaultFeaturesDisabledCmd {
 		let ret = if content.contains("#![cfg_attr(not(feature = \"std\"), no_std)]") ||
 			content.contains("#![no_std]")
 		{
+			if content.contains("#![cfg(") {
+				println!(
+					"{}: Crate may unexpectedly pull in libstd: {}",
+					g.yellow("WARN"),
+					krate.name
+				);
+			}
 			log::debug!("Crate supports no-std: {} (path={})", krate.name, krate.manifest_path);
 			true
 		} else {

tests/integration/sdk/nostd.yaml

@@ -5,8 +5,15 @@ cases:
 - cmd: lint no-std default-features-of-nostd-dependencies-disabled
   stdout: |
     Default features not disabled for dependency: sp-core -> sp-externalities
+    WARN: Crate may unexpectedly pull in libstd: frame-try-runtime
+    WARN: Crate may unexpectedly pull in libstd: frame-benchmarking
     Default features not disabled for dependency: sp-session -> sp-runtime
     Default features not disabled for dependency: sp-consensus-babe -> sp-timestamp
+    WARN: Crate may unexpectedly pull in libstd: frame-system-benchmarking
+    WARN: Crate may unexpectedly pull in libstd: pallet-election-provider-support-benchmarking
+    WARN: Crate may unexpectedly pull in libstd: pallet-nomination-pools-benchmarking
+    WARN: Crate may unexpectedly pull in libstd: pallet-offences-benchmarking
+    WARN: Crate may unexpectedly pull in libstd: pallet-session-benchmarking
     Default features not disabled for dependency: pallet-contracts -> pallet-contracts-proc-macro
     Default features not disabled for dependency: pallet-nomination-pools -> pallet-balances
     Default features not disabled for dependency: pallet-nomination-pools -> sp-tracing
@@ -16,6 +23,8 @@ cases:
     Default features not disabled for dependency: cumulus-primitives-parachain-inherent -> sp-runtime
     Default features not disabled for dependency: cumulus-primitives-parachain-inherent -> sp-state-machine
     Default features not disabled for dependency: cumulus-primitives-parachain-inherent -> sp-storage
+    WARN: Crate may unexpectedly pull in libstd: cumulus-pallet-session-benchmarking
+    WARN: Crate may unexpectedly pull in libstd: xcm-executor-integration-tests
     Default features not disabled for dependency: xcm-executor-integration-tests -> frame-system
     Default features not disabled for dependency: xcm-executor-integration-tests -> pallet-xcm
     Default features not disabled for dependency: xcm-executor-integration-tests -> polkadot-test-runtime
@@ -31,8 +40,15 @@ cases:
 - cmd: lint no-std default-features-of-nostd-dependencies-disabled --fix
   stdout: |
     Default features not disabled for dependency: sp-core -> sp-externalities
+    WARN: Crate may unexpectedly pull in libstd: frame-try-runtime
+    WARN: Crate may unexpectedly pull in libstd: frame-benchmarking
     Default features not disabled for dependency: sp-session -> sp-runtime
     Default features not disabled for dependency: sp-consensus-babe -> sp-timestamp
+    WARN: Crate may unexpectedly pull in libstd: frame-system-benchmarking
+    WARN: Crate may unexpectedly pull in libstd: pallet-election-provider-support-benchmarking
+    WARN: Crate may unexpectedly pull in libstd: pallet-nomination-pools-benchmarking
+    WARN: Crate may unexpectedly pull in libstd: pallet-offences-benchmarking
+    WARN: Crate may unexpectedly pull in libstd: pallet-session-benchmarking
     Default features not disabled for dependency: pallet-contracts -> pallet-contracts-proc-macro
     Default features not disabled for dependency: pallet-nomination-pools -> pallet-balances
     Default features not disabled for dependency: pallet-nomination-pools -> sp-tracing
@@ -42,6 +58,8 @@ cases:
     Default features not disabled for dependency: cumulus-primitives-parachain-inherent -> sp-runtime
     Default features not disabled for dependency: cumulus-primitives-parachain-inherent -> sp-state-machine
     Default features not disabled for dependency: cumulus-primitives-parachain-inherent -> sp-storage
+    WARN: Crate may unexpectedly pull in libstd: cumulus-pallet-session-benchmarking
+    WARN: Crate may unexpectedly pull in libstd: xcm-executor-integration-tests
     Default features not disabled for dependency: xcm-executor-integration-tests -> frame-system
     Default features not disabled for dependency: xcm-executor-integration-tests -> pallet-xcm
     Default features not disabled for dependency: xcm-executor-integration-tests -> polkadot-test-runtime

tests/ui/config/v1/basic.yaml

@@ -3,25 +3,25 @@ crates:
 cases:
 - cmd: run default
   stdout: |
-    zepter 1.4.0
+    zepter 1.4.1
   stderr: |
     [INFO] Running workflow 'default'
     [INFO] 1/1 --version
 - cmd: run
   stdout: |
-    zepter 1.4.0
+    zepter 1.4.1
   stderr: |
     [INFO] Running workflow 'default'
     [INFO] 1/1 --version
 - cmd: ''
   stdout: |
-    zepter 1.4.0
+    zepter 1.4.1
   stderr: |
     [INFO] Running workflow 'default'
     [INFO] 1/1 --version
 - cmd: run my_version
   stdout: |
-    zepter 1.4.0
+    zepter 1.4.1
   stderr: |
     [INFO] Running workflow 'my_version'
     [INFO] 1/1 --version
@@ -36,7 +36,7 @@ cases:
     [INFO] 1/1 debug --no-benchmark
 - cmd: run both
   stdout: |
-    zepter 1.4.0
+    zepter 1.4.1
     Num workspace members: 1
     Num dependencies: 1
     DAG nodes: 0, links: 0

tests/ui/config/v1/finds_all.yaml

@@ -3,7 +3,7 @@ crates:
 cases:
 - cmd: ''
   stdout: |
-    zepter 1.4.0
+    zepter 1.4.1
   stderr: |
     [INFO] Running workflow 'default'
     [INFO] 1/1 --version
@@ -19,7 +19,7 @@ cases:
           - [ '--version' ]
 - cmd: ''
   stdout: |
-    zepter 1.4.0
+    zepter 1.4.1
   stderr: |
     [INFO] Running workflow 'default'
     [INFO] 1/1 --version
@@ -35,7 +35,7 @@ cases:
           - [ '--version' ]
 - cmd: ''
   stdout: |
-    zepter 1.4.0
+    zepter 1.4.1
   stderr: |
     [INFO] Running workflow 'default'
     [INFO] 1/1 --version
@@ -51,7 +51,7 @@ cases:
           - [ '--version' ]
 - cmd: run default
   stdout: |
-    zepter 1.4.0
+    zepter 1.4.1
   stderr: |
     [INFO] Running workflow 'default'
     [INFO] 1/1 --version
@@ -67,7 +67,7 @@ cases:
           - [ '--version' ]
 - cmd: run default
   stdout: |
-    zepter 1.4.0
+    zepter 1.4.1
   stderr: |
     [INFO] Running workflow 'default'
     [INFO] 1/1 --version
@@ -83,7 +83,7 @@ cases:
           - [ '--version' ]
 - cmd: run default
   stdout: |
-    zepter 1.4.0
+    zepter 1.4.1
   stderr: |
     [INFO] Running workflow 'default'
     [INFO] 1/1 --version
@@ -99,7 +99,7 @@ cases:
           - [ '--version' ]
 - cmd: run default --config .cargo/polkadot.yaml
   stdout: |
-    zepter 1.4.0
+    zepter 1.4.1
   stderr: |
     [INFO] Running workflow 'default'
     [INFO] 1/1 --version
@@ -115,7 +115,7 @@ cases:
           - [ '--version' ]
 - cmd: run default -c .cargo/polkadot.yaml
   stdout: |
-    zepter 1.4.0
+    zepter 1.4.1
   stderr: |
     [INFO] Running workflow 'default'
     [INFO] 1/1 --version

tests/ui/config/v1/version_bin.yaml

@@ -4,7 +4,7 @@ cases:
 - cmd: run default
   stderr: |
     thread 'main' panicked at src/cmd/run.rs:27:46:
-    Invalid config file: "Config file version is too new. The file requires at least version 2.0.0, but the current version is 1.4.0. Please update Zepter or ignore this check with `--check-cfg-compatibility=off`."
+    Invalid config file: "Config file version is too new. The file requires at least version 2.0.0, but the current version is 1.4.1. Please update Zepter or ignore this check with `--check-cfg-compatibility=off`."
     note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
   code: 101
 - cmd: run default --check-cfg-compatibility=off
@@ -13,7 +13,7 @@ cases:
   stderr: |
     [INFO] Running workflow 'default'
     thread 'main' panicked at src/cmd/run.rs:27:46:
-    Invalid config file: "Config file version is too new. The file requires at least version 2.0.0, but the current version is 1.4.0. Please update Zepter or ignore this check with `--check-cfg-compatibility=off`."
+    Invalid config file: "Config file version is too new. The file requires at least version 2.0.0, but the current version is 1.4.1. Please update Zepter or ignore this check with `--check-cfg-compatibility=off`."
     note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
   code: 1
 configs:

tests/ui/root-args/version.yaml

@@ -2,7 +2,7 @@ crates: []
 cases:
 - cmd: --version
   stdout: |
-    zepter 1.4.0
+    zepter 1.4.1
 - cmd: -V
   stdout: |
-    zepter 1.4.0
+    zepter 1.4.1