Capture unrecognized fields with lint

Cargo.toml

@@ -67,6 +67,7 @@ itertools = "0.12"
 libc = "0.2.80"
 miette = "7.0"
 nix = { version = "0.27.1", features = ["mount", "sched", "user"] }
+ngrammatic = "0.4.0"
 nom = "7.1"
 nom-supreme = "0.8"
 once_cell = "1.8"
@@ -135,6 +136,7 @@ spk-storage = { path = "crates/spk-storage" }
 static_assertions = "1.1"
 strip-ansi-escapes = "0.2.0"
 strum = { version = "0.26.1", features = ["derive"] }
+struct-field-names-as-array = "0.3.0"
 tempfile = "3.3"
 thiserror = "1.0"
 tokio = { version = "1.39", features = ["rt"] }

crates/spk-cli/group4/src/cmd_lint.rs

@@ -8,7 +8,9 @@ use clap::Args;
 use colored::Colorize;
 use miette::Result;
 use spk_cli_common::{flags, CommandArgs, Run};
-use spk_schema::{SpecTemplate, Template, TemplateExt};
+use spk_schema::v0::Spec;
+use spk_schema::Lint::Key;
+use spk_schema::{AnyIdent, LintedItem, SpecTemplate, Template, TemplateExt};
 
 /// Validate spk yaml files
 #[derive(Args)]
@@ -25,12 +27,26 @@ impl Run for Lint {
     type Output = i32;
 
     async fn run(&mut self) -> Result<Self::Output> {
-        let options = self.options.get_options()?;
         let mut out = 0;
+        let options = self.options.get_options()?;
         for spec in self.packages.iter() {
-            let result = SpecTemplate::from_file(spec).and_then(|t| t.render(&options));
-            match result {
-                Ok(_) => println!("{} {}", "OK".green(), spec.display()),
+            let yaml = SpecTemplate::from_file(spec).and_then(|t| t.render_to_string(&options))?;
+            let lints: std::result::Result<LintedItem<Spec<AnyIdent>>, serde_yaml::Error> =
+                serde_yaml::from_str(&yaml);
+
+            match lints {
+                Ok(s) => match s.lints.is_empty() {
+                    true => println!("{} {}", "OK".green(), spec.display()),
+                    false => {
+                        println!("{} {}:", "Failed".red(), spec.display());
+                        for lint in s.lints {
+                            match lint {
+                                Key(k) => println!("{} {}", "----->".red(), k.generate_message()),
+                            }
+                        }
+                        out = 1;
+                    }
+                },
                 Err(err) => {
                     println!(
                         "{} {}:\n{} {err}",

crates/spk-schema/Cargo.toml

@@ -27,6 +27,7 @@ format_serde_error = { version = "0.3", default-features = false, features = [
 ignore = "0.4.18"
 indexmap = { workspace = true }
 itertools = { workspace = true }
+ngrammatic = { workspace = true }
 nom = { workspace = true }
 regex = { workspace = true }
 relative-path = { workspace = true }
@@ -41,6 +42,7 @@ spk-schema-foundation = { workspace = true }
 spk-schema-ident = { workspace = true }
 spk-schema-tera = { workspace = true }
 strum = { workspace = true }
+struct-field-names-as-array = { workspace = true }
 sys-info = "0.9.0"
 tempfile = { workspace = true }
 thiserror = { workspace = true }