feat(cli): add apply command

This command provide a possibility to run sql file by name
in root migra directory

migra-cli/src/main.rs

@@ -4,18 +4,38 @@ mod config;
 mod opts;
 
 use config::Config;
-use opts::{AppOpt, StructOpt};
+use opts::{StructOpt, AppOpt, ApplyOpt};
+use std::path::{Path, PathBuf};
 
 fn main() -> Result<(), Box<dyn std::error::Error>> {
     let opt = AppOpt::from_args();
-    dbg!(&opt);
-
-    let config = Config::read();
-    dbg!(&config);
 
     match opt {
         AppOpt::Init => {
             Config::initialize()?;
+        },
+        AppOpt::Apply(ApplyOpt { file_name }) => {
+            let config = Config::read();
+
+            let mut client = migra_core::database::connect(&config.database.connection)?;
+
+            let file_name = Path::new(&file_name);
+            let mut filepath = PathBuf::from(&config.directory);
+            filepath.push(file_name);
+            if file_name.extension().is_none() {
+                filepath.set_extension("sql");
+            }
+
+            let content = std::fs::read_to_string(filepath)?;
+
+            match migra_core::database::apply_sql(&mut client, &content) {
+                Ok(_) => {
+                    println!("File was applied successfully")
+                }
+                Err(err) => {
+                    println!("{}", err)
+                }
+            }
         }
     }
 

migra-cli/src/opts.rs

@@ -3,4 +3,12 @@ pub use structopt::StructOpt;
 #[derive(Debug, StructOpt)]
 pub(crate) enum AppOpt {
     Init,
+    Apply(ApplyOpt),
+}
+
+
+#[derive(Debug, StructOpt)]
+pub(crate) struct ApplyOpt {
+    #[structopt(parse(from_str))]
+    pub file_name: String
 }