feat(stackable-versioned): Add K8s specific features (#857)

* chore: Add changelog entry

* chore: Update PR link in changelog

* chore: Fix markdownlint error

* feat: Add support for CustomResource derive

* chore: Move CRD test case to run via trybuild

* chore(ci): Add cargo-udeps ignore

* fix(docs): Repair doc comment reference

* chore: Apply suggestions

Co-authored-by: Nick <[email protected]>

* fix(docs): Use struct@ to fix rustdoc errors

* chore: Bump syn to 2.0.77

* test: Move K8s specific tests into own folder

* test: Adjust test modules, add negative K8s specific test

* chore: Add comment to cargo-udeps ignore items

* Update crates/stackable-versioned-macros/Cargo.toml

Co-authored-by: Nick <[email protected]>

* chore: Remove trailing whitespace

---------

Co-authored-by: Nick <[email protected]>

Cargo.toml

@@ -58,7 +58,7 @@ signature = "2.2.0"
 snafu = "0.8.4"
 stackable-operator-derive = { path = "stackable-operator-derive" }
 strum = { version = "0.26.3", features = ["derive"] }
-syn = "2.0.72"
+syn = "2.0.77"
 tempfile = "3.11.0"
 time = { version = "0.3.36" }
 tokio = { version = "1.39.2", features = ["macros", "rt-multi-thread", "fs"] }

crates/stackable-versioned-macros/Cargo.toml

@@ -6,20 +6,37 @@ license.workspace = true
 edition.workspace = true
 repository.workspace = true
 
+# cargo-udeps throws an error that these dependencies are unused. They are,
+# however, used in K8s specific test cases. This is a false-positive and an
+# apparent limitation of cargo-udeps. These entries can be removed once
+# cargo-udeps supports detecting usage of such dependencies.
+[package.metadata.cargo-udeps.ignore]
+development = ["schemars", "serde_yaml"]
+
 [lib]
 proc-macro = true
 
+[features]
+full = ["k8s"]
+k8s = ["dep:kube", "dep:k8s-openapi"]
+
 [dependencies]
 k8s-version = { path = "../k8s-version", features = ["darling"] }
 
 convert_case.workspace = true
 darling.workspace = true
 itertools.workspace = true
+k8s-openapi = { workspace = true, optional = true }
+kube = { workspace = true, optional = true }
 proc-macro2.workspace = true
 strum.workspace = true
 syn.workspace = true
 quote.workspace = true
 
 [dev-dependencies]
 rstest.workspace = true
+schemars.workspace = true
+serde.workspace = true
+serde_json.workspace = true
+serde_yaml.workspace = true
 trybuild.workspace = true