add clippy test to ci

.github/workflows/run-tests.yml

@@ -17,6 +17,10 @@ jobs:
       - uses: actions-rs/toolchain@v1
         with:
           toolchain: nightly
+      - name: Run clippy
+        uses: actions-rs/cargo@v1
+        with:
+          command: clippy -- -D warnings
       - name: Run unit tests
         uses: actions-rs/cargo@v1
         with:

Cargo.toml

@@ -10,7 +10,7 @@ tera = "1.12.1"
 convert_case = "0.4.0"
 pluralize-rs = "0.1.0"
 include_dir = { version = "0.6.0", features = ["search"] }
-serde = {version="1.0.126", features = ["derive"]}
+serde = { version = "1.0.126", features = ["derive"] }
 serde_yaml = "0.8.17"
 serde_json = "1.0.64"
 toml = "0.5.8"

src/config/cli.rs

@@ -9,7 +9,7 @@ use structopt::StructOpt;
 )]
 pub struct Config {
     /// Config file path.
-    #[structopt(short="i", long, alias="input", parse(from_os_str), env = "CONFIG")]
+    #[structopt(short = "i", long, alias = "input", parse(from_os_str), env = "CONFIG")]
     pub config: PathBuf,
     /// Output project path.
     #[structopt(short, long, parse(from_os_str), env = "OUTPUT")]
@@ -19,23 +19,23 @@ pub struct Config {
     pub force: bool,
 
     /// Output project path.
-    #[structopt(alias="dbms", long, env = "DATABASE")]
+    #[structopt(alias = "dbms", long, env = "DATABASE")]
     pub database_engine: Option<String>,
     #[structopt(short, long, env = "API_NAME")]
     pub name: Option<String>,
 
-    #[structopt(alias="ddl", long, env = "DDL")]
+    #[structopt(alias = "ddl", long, env = "DDL")]
     pub load_from_ddl: Option<String>,
-    #[structopt(short="load-db", long, env = "LOAD_DB")]
+    #[structopt(short = "load-db", long, env = "LOAD_DB")]
     pub load_from_db: Option<String>,
 
-    #[structopt(short="d", long, env = "DOCKER")]
-    pub generate_docker: Option<bool>, 
-    #[structopt(alias="du", long, env = "DOCKER_USERNAME")]
+    #[structopt(short = "d", long, env = "DOCKER")]
+    pub generate_docker: Option<bool>,
+    #[structopt(alias = "du", long, env = "DOCKER_USERNAME")]
     pub docker_username: Option<String>,
-    #[structopt(alias="dt", long, env = "DOCKER_TAG")]
-    pub docker_tag: Option<String>, 
+    #[structopt(alias = "dt", long, env = "DOCKER_TAG")]
+    pub docker_tag: Option<String>,
 
-    #[structopt(short="k8s", long, env = "KUBERNETES")]
+    #[structopt(short = "k8s", long, env = "KUBERNETES")]
     pub kubernetes: Option<bool>,
 }

src/config/file.rs

@@ -1,6 +1,3 @@
-use std::fs::OpenOptions;
-
-use anyhow::{anyhow, Result};
 use serde::{Deserialize, Serialize};
 
 #[derive(Serialize, Deserialize, Debug, Clone)]
@@ -10,6 +7,7 @@ pub struct Field {
     pub data_type: String,
 }
 
+#[allow(clippy::upper_case_acronyms)]
 #[derive(Serialize, Deserialize, Debug, Clone)]
 pub struct API {
     pub name: String,
@@ -54,6 +52,7 @@ impl Default for Docker {
     }
 }
 
+#[allow(clippy::upper_case_acronyms)]
 #[derive(Serialize, Deserialize, Debug, Clone)]
 pub struct CICD {
     #[serde(default)]
@@ -83,4 +82,3 @@ pub struct Config {
     #[serde(default)]
     pub cicd: CICD,
 }
-

src/config/mod.rs

@@ -1,7 +1,7 @@
 mod cli;
 mod file;
 use anyhow::anyhow;
-use std::{fs::File, io::Read, path::PathBuf};
+use std::{ffi::OsStr, fs::File, io::Read, path::PathBuf};
 
 use structopt::StructOpt;
 
@@ -18,8 +18,8 @@ pub fn from_cli_config() -> anyhow::Result<Config> {
     let mut file_config: file::Config = match cli_config
         .config
         .extension()
-        .and_then(|it| it.to_str())
-        .ok_or(anyhow!("Cannot open config file"))?
+        .and_then(OsStr::to_str)
+        .ok_or_else(|| anyhow!("Cannot open config file"))?
     {
         "toml" => {
             let mut content = String::new();
@@ -64,17 +64,15 @@ pub fn from_cli_config() -> anyhow::Result<Config> {
         }
         let try_load_from_db = if let Some(addr) = cli_config.load_from_db {
             Some(addr)
-        } else if let Some(addr) = file_config.implementation.database.url {
-            Some(addr)
         } else {
-            None
+            file_config.implementation.database.url.clone()
         };
         if try_load_from_db.is_some() {
             if cli_config.name.is_none() {
                 return Err(anyhow!("I need to know API name before load it from db!"));
             }
+            todo!("load api config from database");
         }
-        todo!("load api config from database");
     }
 
     if let Some(generate_docker) = cli_config.generate_docker {
@@ -92,15 +90,19 @@ pub fn from_cli_config() -> anyhow::Result<Config> {
     file_config.cicd.kubernetes = match file_config.cicd.kubernetes {
         Some(false) => Some(false),
         Some(true) if file_config.implementation.database.url.is_none() => {
-            return Err(anyhow!("generating kubernetes yaml file requires database connection string"));
+            return Err(anyhow!(
+                "generating kubernetes yaml file requires database connection string"
+            ));
         }
         Some(true) if file_config.cicd.docker.username.is_none() => {
             // todo: support other docker image registry than dockerhub
-            return Err(anyhow!("generating kubernetes yaml file requires docker username"));
+            return Err(anyhow!(
+                "generating kubernetes yaml file requires docker username"
+            ));
         }
         Some(true) => Some(true),
         None if file_config.implementation.database.url.is_none() => Some(false),
-        None => Some(true)
+        None => Some(true),
     };
     Ok(Config {
         output: cli_config.output,

src/implementation/database/mod.rs → src/implementation/database.rs

@@ -2,8 +2,6 @@
 
 use serde::{Deserialize, Serialize};
 
-pub mod postgres;
-
 /// The database the user wants to use.
 #[derive(Serialize, Deserialize, Debug, Clone, PartialEq, Eq, PartialOrd, Ord)]
 #[serde(rename_all = "lowercase")]

src/implementation/framework/golang.rs

@@ -5,9 +5,9 @@ use std::{collections::HashMap, path::Path};
 use tera::{Result, Tera, Value};
 
 use crate::{
+    implementation::Implementation,
     model::{data_type::DataType, Model},
     render::render_simple,
-    implementation::Implementation,
 };
 
 /// "imports" for different golang files
@@ -29,17 +29,17 @@ pub struct Golang {
 
 // TODO: It is highly possible that each language needs `data_type`, `register` and `render`, maybe we can add a trait.
 /// Get the string representing of a data_type in Golang.
-fn data_type(data_type: DataType) -> String {
+fn data_type(data_type: &DataType) -> String {
     match data_type {
-        DataType::Int(x) if x <= 8 => "int8".to_string(),
-        DataType::Int(x) if x <= 16 => "int16".to_string(),
-        DataType::Int(x) if x <= 32 => "int32".to_string(),
+        DataType::Int(x) if *x <= 8 => "int8".to_string(),
+        DataType::Int(x) if *x <= 16 => "int16".to_string(),
+        DataType::Int(x) if *x <= 32 => "int32".to_string(),
         DataType::Int(_) => "int64".to_string(),
-        DataType::UInt(x) if x <= 8 => "uint8".to_string(),
-        DataType::UInt(x) if x <= 16 => "uint16".to_string(),
-        DataType::UInt(x) if x <= 32 => "uint32".to_string(),
+        DataType::UInt(x) if *x <= 8 => "uint8".to_string(),
+        DataType::UInt(x) if *x <= 16 => "uint16".to_string(),
+        DataType::UInt(x) if *x <= 32 => "uint32".to_string(),
         DataType::UInt(_) => "uint64".to_string(),
-        DataType::Float(x) if x <= 32 => "float32".to_string(),
+        DataType::Float(x) if *x <= 32 => "float32".to_string(),
         DataType::Float(_) => "float64".to_string(),
         DataType::String(_) => "string".to_string(),
         DataType::DateTime => "time".to_string(),
@@ -48,7 +48,7 @@ fn data_type(data_type: DataType) -> String {
 
 fn data_type_in_template(args: &HashMap<String, Value>) -> Result<Value> {
     let data_type_value: DataType = serde_json::from_value(args.get("data_type").unwrap().clone())?;
-    Ok(Value::String(data_type(data_type_value)))
+    Ok(Value::String(data_type(&data_type_value)))
 }
 
 /// A function which can be used in the template for judging whether the datatype is a string

src/main.rs

@@ -1,14 +1,14 @@
 use implementation::Implementation;
 
 use crate::{
-    model::{data_type::DataType, Field, Model},
     implementation::framework::golang,
+    model::{data_type::DataType, Field, Model},
 };
 
+mod config;
+mod implementation;
 mod model;
 mod render;
-mod implementation;
-mod config;
 
 fn main() {
     let mut tera = render::load_templates();
@@ -23,11 +23,17 @@ fn main() {
             name: "id".to_string(),
             data_type: DataType::UInt(64),
         },
-        fields: config.generate_config.api.unwrap().fields.into_iter()
+        fields: config
+            .generate_config
+            .api
+            .unwrap()
+            .fields
+            .into_iter()
             .map(|it| Field {
                 name: it.name,
                 data_type: it.data_type.into(),
-            }).collect(),
+            })
+            .collect(),
     };
     let mut context = tera::Context::new();
     context.insert("model", &model);

src/model/data_type.rs

@@ -1,6 +1,5 @@
 use convert_case::{Case, Casing};
 use serde::{Deserialize, Serialize};
-use toml::value::Datetime;
 
 /// Meta information about a string.
 #[derive(Serialize, Deserialize, Debug, Clone, PartialEq, Eq, PartialOrd, Ord)]
@@ -27,11 +26,15 @@ impl From<String> for DataType {
         match s.as_str().to_case(Case::Snake).as_str() {
             "tiny_int" | "tinyint" | "tiny_integer" | "int8" => DataType::Int(8),
             "small_int" | "smallint" | "small_integer" | "int16" => DataType::Int(16),
-            "int" | "integer" | "medium_int" | "mediumint" | "medium_integer" | "int32" => DataType::Int(32),
+            "int" | "integer" | "medium_int" | "mediumint" | "medium_integer" | "int32" => {
+                DataType::Int(32)
+            }
             "big_int" | "bigint" | "big_integer" | "int64" => DataType::Int(64),
             "unsigned_tiny_int" | "unsigned_tiny_integer" | "uint8" => DataType::UInt(8),
             "unsigned_small_int" | "unsigned_small_integer" | "uint16" => DataType::UInt(16),
-            "uint" | "unsigned" | "unsigned_medium_int" | "unsigned_medium_integer" | "uint32" => DataType::UInt(32),
+            "uint" | "unsigned" | "unsigned_medium_int" | "unsigned_medium_integer" | "uint32" => {
+                DataType::UInt(32)
+            }
             "unsigned_big_int" | "unsigned_big_integer" | "uint64" => DataType::UInt(64),
             "float" | "float32" => DataType::Float(32),
             "double" | "float64" => DataType::Float(64),
@@ -40,7 +43,7 @@ impl From<String> for DataType {
                 if s.starts_with("char(") {
                     let length: usize = s
                         .trim_start_matches("char(")
-                        .trim_end_matches(")")
+                        .trim_end_matches(')')
                         .parse()
                         .unwrap();
                     DataType::String(Some(StringMeta {
@@ -50,7 +53,7 @@ impl From<String> for DataType {
                 } else if s.starts_with("varchar(") {
                     let length: usize = s
                         .trim_start_matches("varchar(")
-                        .trim_end_matches(")")
+                        .trim_end_matches(')')
                         .parse()
                         .unwrap();
                     DataType::String(Some(StringMeta {