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-rw-r--r--src/cmd.rs51
1 files changed, 51 insertions, 0 deletions
diff --git a/src/cmd.rs b/src/cmd.rs
new file mode 100644
index 0000000..172f6a6
--- /dev/null
+++ b/src/cmd.rs
@@ -0,0 +1,51 @@
+mod recommend;
+mod sql;
+mod sync;
+
+use clap::{
+ app_from_crate, crate_authors, crate_description, crate_name,
+ crate_version,
+};
+use failure::bail;
+
+const _DUMMY_DEPENDENCY: &str = include_str!("../Cargo.toml");
+
+trait Command {
+ fn run(&self) -> failure::Fallible<()>;
+}
+
+pub fn run() -> failure::Fallible<()> {
+ get_command()?.run()
+}
+
+fn get_command() -> failure::Fallible<Box<Command>> {
+ let subcommands = vec![
+ sync::subcommand(),
+ sql::subcommand(),
+ recommend::subcommand(),
+ ];
+ let mut app = app_from_crate!().subcommands(
+ subcommands
+ .into_iter()
+ .map(|s| s.setting(clap::AppSettings::DisableVersion)),
+ );
+ let matches = app.clone().get_matches();
+
+ let command: Box<Command> = match matches.subcommand() {
+ ("sync", Some(matches)) => Box::new(sync::Command::new(matches)),
+ ("sql", Some(matches)) => Box::new(sql::Command::new(matches)),
+ ("recommend", Some(matches)) => {
+ Box::new(recommend::Command::new(matches)?)
+ }
+
+ (name, Some(_)) => bail!("unknown subcommand: {}", name),
+ (_, None) => {
+ let mut stderr = std::io::stderr();
+ app.write_long_help(&mut stderr)?;
+ eprintln!("");
+ bail!("no subcommand given")
+ }
+ };
+
+ Ok(command)
+}