feat: add rust actions

Signed-off-by: kjuulh <contact@kjuulh.io>

crates/cuddle-please-actions/src/rust_action.rs

@@ -0,0 +1,237 @@
+use std::io::Write;
+
+use anyhow::Context;
+
+use crate::{actions::Action, ActionConfig};
+
+#[derive(Default, Clone)]
+pub struct RustAction {}
+
+impl RustAction {
+    pub fn new() -> Self {
+        Self {}
+    }
+
+    fn execute_content(
+        &self,
+        version: &semver::Version,
+        cargo_content: &str,
+    ) -> anyhow::Result<String> {
+        tracing::trace!("parsing Cargo.toml file as tolm");
+        let mut cargo_doc = cargo_content.parse::<toml_edit::DocumentMut>()?;
+
+        tracing::debug!(
+            "updating cargo workspace package version to {}",
+            version.to_string()
+        );
+
+        let workspace = if cargo_doc.contains_table("workspace") {
+            cargo_doc["workspace"].as_table_mut().unwrap()
+        } else {
+            let mut t = toml_edit::Table::new();
+            t.set_implicit(true);
+            cargo_doc["workspace"] = toml_edit::Item::Table(t);
+            cargo_doc["workspace"].as_table_mut().unwrap()
+        };
+        let package = workspace["package"].or_insert(toml_edit::table());
+        package["version"] = toml_edit::value(version.to_string());
+
+        Ok(cargo_doc.to_string())
+    }
+}
+
+impl Action for RustAction {
+    fn enabled(&self, config: &ActionConfig) -> anyhow::Result<bool> {
+        if let Ok(v) = std::env::var("CUDDLE_PLEASE_RUST_ACTION") {
+            if let Ok(true) = v.parse::<bool>() {
+                return Ok(true);
+            }
+        }
+
+        let val = &config[self.name().as_str()];
+
+        if val.is_badvalue() {
+            return Ok(false);
+        }
+
+        Ok(val.as_bool().unwrap_or(true))
+    }
+
+    fn name(&self) -> String {
+        "rust".into()
+    }
+
+    fn execute(&self, version: &semver::Version) -> anyhow::Result<()> {
+        tracing::info!(
+            "running rust action for version: {} and file: Cargo.toml",
+            version.to_string()
+        );
+
+        let path = std::path::PathBuf::from("Cargo.toml");
+
+        tracing::trace!("reading Cargo.toml");
+
+        let file = match std::fs::read_to_string(&path) {
+            Ok(file) => file,
+            Err(e) => match e.kind() {
+                std::io::ErrorKind::NotFound => {
+                    anyhow::bail!("err: Cargo.toml was not found in dir")
+                }
+                _ => Err(e)?,
+            },
+        };
+
+        let cargo_doc = self.execute_content(version, &file)?;
+
+        let mut cargo_file = std::fs::File::create(&path)?;
+        cargo_file.write_all(cargo_doc.as_bytes())?;
+        cargo_file.sync_all()?;
+
+        tracing::debug!("finished writing cargo file");
+
+        Ok(())
+    }
+}
+
+#[cfg(test)]
+mod test {
+    use semver::{BuildMetadata, Prerelease};
+
+    use crate::{actions::Action, ActionConfig};
+
+    use super::RustAction;
+
+    #[test]
+    fn test_is_enabled() {
+        let config = ActionConfig::try_from(
+            r#"
+please:
+  actions:
+    rust: true
+                "#,
+        )
+        .unwrap();
+
+        let enabled = RustAction::new().enabled(&config).unwrap();
+
+        assert!(enabled)
+    }
+
+    #[test]
+    fn test_is_disabled_by_default() {
+        let config = ActionConfig::try_from(
+            r#"
+please:
+                "#,
+        )
+        .unwrap();
+
+        let enabled = RustAction::new().enabled(&config).unwrap();
+
+        assert!(!enabled)
+    }
+
+    #[test]
+    fn test_is_disabled() {
+        let config = ActionConfig::try_from(
+            r#"
+please:
+  actions:
+    rust: false
+                "#,
+        )
+        .unwrap();
+
+        let enabled = RustAction::new().enabled(&config).unwrap();
+
+        assert!(!enabled)
+    }
+
+    #[test]
+    fn test_missing_value_is_enabled() {
+        let config = ActionConfig::try_from(
+            r#"
+please:
+  actions:
+    rust:
+                "#,
+        )
+        .unwrap();
+
+        let enabled = RustAction::new().enabled(&config).unwrap();
+
+        assert!(enabled)
+    }
+
+    #[test]
+    fn test_can_edit_empty_file() {
+        let output = RustAction::default()
+            .execute_content(
+                &semver::Version {
+                    major: 0,
+                    minor: 1,
+                    patch: 0,
+                    pre: Prerelease::default(),
+                    build: BuildMetadata::default(),
+                },
+                "",
+            )
+            .unwrap();
+
+        pretty_assertions::assert_eq!(
+            r#"[workspace.package]
+version = "0.1.0"
+"#,
+            &output,
+        )
+    }
+
+    #[test]
+    fn test_only_edits_stuff() {
+        let input = r#"
+[workspace]
+members = ["."]
+
+
+[package]
+something = {some = "something"}
+
+# Some comment
+
+[workspace.package]
+version = "0.0.0" # some comment
+readme = "../../"
+"#;
+
+        let output = RustAction::default()
+            .execute_content(
+                &semver::Version {
+                    major: 0,
+                    minor: 1,
+                    patch: 0,
+                    pre: Prerelease::default(),
+                    build: BuildMetadata::default(),
+                },
+                input,
+            )
+            .unwrap();
+
+        pretty_assertions::assert_eq!(
+            r#"
+[workspace]
+members = ["."]
+
+
+[package]
+something = {some = "something"}
+
+# Some comment
+
+[workspace.package]
+version = "0.1.0"
+readme = "../../"
+"#,
+            &output,
+        )
+    }
+}