refactor: move commands and misc out of main binary package

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

crates/cuddle-please-misc/src/versioning/conventional_parse.rs

@@ -0,0 +1,187 @@
+use conventional_commit_parser::commit::{CommitType, ConventionalCommit};
+use semver::Version;
+
+#[derive(Debug, Clone, PartialEq)]
+pub enum VersionIncrement {
+    Major,
+    Minor,
+    Patch,
+    Prerelease,
+}
+
+impl VersionIncrement {
+    pub fn from<C>(cur_version: &Version, commits: C) -> Option<Self>
+    where
+        C: IntoIterator,
+        C::Item: AsRef<str>,
+    {
+        let mut commits = commits.into_iter().peekable();
+        commits.peek()?;
+        if let Some(prerelease) = Self::is_prerelease(cur_version) {
+            return Some(prerelease);
+        }
+
+        let commits: Vec<ConventionalCommit> = Self::parse_commits::<C>(commits);
+
+        Some(Self::from_conventional_commits(commits))
+    }
+
+    #[inline]
+    fn parse_commits<C>(
+        commits: std::iter::Peekable<<C as IntoIterator>::IntoIter>,
+    ) -> Vec<ConventionalCommit>
+    where
+        C: IntoIterator,
+        C::Item: AsRef<str>,
+    {
+        commits
+            .filter_map(|c| conventional_commit_parser::parse(c.as_ref()).ok())
+            .collect()
+    }
+
+    // Find most significant change
+    fn from_conventional_commits(commits: Vec<ConventionalCommit>) -> VersionIncrement {
+        let found_breaking = || commits.iter().any(|c| c.is_breaking_change);
+        let found_feature = || {
+            commits
+                .iter()
+                .any(|c| matches!(c.commit_type, CommitType::Feature))
+        };
+
+        match (found_breaking(), found_feature()) {
+            (true, _) => Self::Major,
+            (_, true) => Self::Minor,
+            (_, false) => Self::Patch,
+        }
+    }
+
+    fn is_prerelease(cur_version: &Version) -> Option<VersionIncrement> {
+        if !cur_version.pre.is_empty() {
+            return Some(Self::Prerelease);
+        }
+        None
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use crate::versioning::conventional_parse::VersionIncrement;
+    use semver::Version;
+    use tracing_test::traced_test;
+
+    #[test]
+    #[traced_test]
+    fn is_prerelease() {
+        let version = Version::parse("0.0.0-alpha.1").unwrap();
+
+        let commits = vec![
+            "feat: something",
+            "fix: something",
+            "feat(something): something",
+            "feat(breaking): some
+            
+            BREAKING CHANGE: something",
+        ];
+
+        let actual = VersionIncrement::from(&version, commits).unwrap();
+        assert_eq!(VersionIncrement::Prerelease, actual);
+    }
+    #[test]
+    #[traced_test]
+    fn is_patch() {
+        let version = Version::parse("0.0.1").unwrap();
+
+        let commits = vec![
+            "fix: something",
+            "fix: something",
+            "fix: something",
+            "fix: something",
+            "fix: something",
+            "fix: something",
+        ];
+
+        let actual = VersionIncrement::from(&version, commits).unwrap();
+        assert_eq!(VersionIncrement::Patch, actual);
+    }
+
+    #[test]
+    #[traced_test]
+    fn is_minor() {
+        let version = Version::parse("0.1.0").unwrap();
+
+        let commits = vec![
+            "feat: something",
+            "feat: something",
+            "fix: something",
+            "fix: something",
+            "fix: something",
+            "fix: something",
+        ];
+
+        let actual = VersionIncrement::from(&version, commits).unwrap();
+        assert_eq!(VersionIncrement::Minor, actual);
+    }
+    #[test]
+    #[traced_test]
+    fn is_major() {
+        let version = Version::parse("0.1.0").unwrap();
+
+        let commits = vec![
+            "feat: something",
+            "feat: something
+            
+            BREAKING CHANGE: something",
+            "fix: something",
+            "fix: something",
+            "fix: something",
+            "fix: something",
+        ];
+
+        let actual = VersionIncrement::from(&version, commits).unwrap();
+        assert_eq!(VersionIncrement::Major, actual);
+    }
+
+    #[test]
+    #[traced_test]
+    fn chore_is_patch() {
+        let version = Version::parse("0.1.0").unwrap();
+
+        let commits = vec!["chore: something"];
+
+        let actual = VersionIncrement::from(&version, commits).unwrap();
+        assert_eq!(VersionIncrement::Patch, actual);
+    }
+
+    #[test]
+    #[traced_test]
+    fn refactor_is_patch() {
+        let version = Version::parse("0.1.0").unwrap();
+
+        let commits = vec!["refactor: something"];
+
+        let actual = VersionIncrement::from(&version, commits).unwrap();
+        assert_eq!(VersionIncrement::Patch, actual);
+    }
+
+    #[test]
+    #[traced_test]
+    fn unknown_commits_are_patch() {
+        let version = Version::parse("0.1.0").unwrap();
+
+        let commits = vec!["blablabla some commit"];
+
+        let actual = VersionIncrement::from(&version, commits).unwrap();
+        assert_eq!(VersionIncrement::Patch, actual);
+    }
+
+    #[test]
+    #[traced_test]
+    fn nothing_returns_none() {
+        let version = Version::parse("0.1.0").unwrap();
+
+        let commits: Vec<&str> = Vec::new();
+
+        let actual = VersionIncrement::from(&version, commits).is_none();
+        assert!(actual);
+    }
+}