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pub(crate) mod common;
pub(crate) mod content;
pub(crate) mod media_type;
pub(crate) mod operations;
pub(crate) mod parameter;
pub(crate) mod parameters;
pub(crate) mod path_items;
pub(crate) mod paths;
pub(crate) mod request_body;
pub(crate) mod response;
pub(crate) mod responses;
pub(crate) mod schema;
use crate::openapi::OpenAPI;
use common::StringDiff;
use paths::PathsDiff;
use serde::Serialize;
use std::path::PathBuf;
use thiserror::Error;
#[derive(Error, Debug)]
pub enum DiffError {
#[error("Unsupported feature: {0}")]
UnsupportedFeature(String),
#[error(transparent)]
IOError(#[from] std::io::Error),
#[error(transparent)]
SerdeError(#[from] serde_yaml::Error),
}
#[derive(Debug, Serialize)]
pub struct Diff {
pub version: Option<StringDiff>,
pub paths: PathsDiff,
}
pub fn diff_files(base: PathBuf, head: PathBuf) -> Result<Diff, DiffError> {
let base_contents = std::fs::read_to_string(base)?;
let head_contents = std::fs::read_to_string(head)?;
let base_openapi: OpenAPI = serde_yaml::from_str(&base_contents)?;
let head_openapi: OpenAPI = serde_yaml::from_str(&head_contents)?;
diff(base_openapi, head_openapi)
}
pub fn diff(base: OpenAPI, head: OpenAPI) -> Result<Diff, DiffError> {
let version_diff = StringDiff::from_strings(base.openapi, head.openapi);
let paths_diff = PathsDiff::from_paths(&base.paths, &head.paths)?;
Ok(Diff {
version: version_diff,
paths: paths_diff,
})
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn from_json_files() {
let diff = diff_files(
PathBuf::from("fixtures/pet-store.json"),
PathBuf::from("fixtures/pet-store-changed.json"),
)
.expect("Failed to diff JSON");
let version_change = diff.version.unwrap();
assert_eq!("3.0.0", version_change.from);
assert_eq!("3.1.0", version_change.to);
}
#[test]
fn from_yaml_files() {
let diff = diff_files(
PathBuf::from("fixtures/pet-store.yaml"),
PathBuf::from("fixtures/pet-store-changed.yaml"),
)
.expect("Failed to diff JSON");
let version_change = diff.version.unwrap();
assert_eq!("3.0.0", version_change.from);
assert_eq!("3.1.0", version_change.to);
}
#[test]
fn openapi_version_change() {
let mut base = OpenAPI::default();
base.openapi = String::from("3.0.0");
let mut head = OpenAPI::default();
head.openapi = String::from("4.0.0");
let result = diff(base, head);
let diff = result.expect("Failed to diff");
let version_change = diff.version.unwrap();
assert_eq!("3.0.0", version_change.from);
assert_eq!("4.0.0", version_change.to);
}
}