From 7eed764f9e4c4d1c013f1d3f8a069a1c52a4a4aa Mon Sep 17 00:00:00 2001 From: Draklaw Date: Mon, 27 Apr 2020 20:18:03 +0200 Subject: [PATCH] Initial commit. Some argument parsing and a command template. --- .gitignore | 2 + Cargo.lock | 189 ++++++++++++ Cargo.toml | 12 + LICENSE.AGPL-3.0 | 661 ++++++++++++++++++++++++++++++++++++++++ src/commands/command.rs | 63 ++++ src/commands/init.rs | 72 +++++ src/commands/mod.rs | 31 ++ src/core/config.rs | 23 ++ src/core/error.rs | 32 ++ src/core/mod.rs | 21 ++ src/main.rs | 62 ++++ 11 files changed, 1168 insertions(+) create mode 100644 .gitignore create mode 100644 Cargo.lock create mode 100644 Cargo.toml create mode 100644 LICENSE.AGPL-3.0 create mode 100644 src/commands/command.rs create mode 100644 src/commands/init.rs create mode 100644 src/commands/mod.rs create mode 100644 src/core/config.rs create mode 100644 src/core/error.rs create mode 100644 src/core/mod.rs create mode 100644 src/main.rs diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..53eaa21 --- /dev/null +++ b/.gitignore @@ -0,0 +1,2 @@ +/target +**/*.rs.bk diff --git a/Cargo.lock b/Cargo.lock new file mode 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If not, see . + +Also add information on how to contact you by electronic and paper mail. + + If your software can interact with users remotely through a computer +network, you should also make sure that it provides a way for users to +get its source. For example, if your program is a web application, its +interface could display a "Source" link that leads users to an archive +of the code. There are many ways you could offer source, and different +solutions will be better for different programs; see section 13 for the +specific requirements. + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU AGPL, see +. diff --git a/src/commands/command.rs b/src/commands/command.rs new file mode 100644 index 0000000..908a29d --- /dev/null +++ b/src/commands/command.rs @@ -0,0 +1,63 @@ +// This file is part of bsv. +// +// bsv is free software: you can redistribute it and/or modify it under the +// terms of the GNU Affero General Public License as published by the Free +// Software Foundation, either version 3 of the License, or (at your option) +// any later version. +// +// cdb is distributed in the hope that it will be useful, but WITHOUT ANY +// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +// FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for +// more details. +// +// You should have received a copy of the Affero GNU General Public License +// along with cdb. If not, see . + + +use std::collections::{hash_map, HashMap}; + +use clap::{App, ArgMatches}; + +use crate::core::error::*; + + +pub trait Command { + fn name(&self) -> String; + fn args_parser<'a, 'b>(&self) -> App<'a, 'b>; + fn run(&self, args: &ArgMatches) -> Result<()>; +} + + +pub struct CommandMap { + cmd_map: HashMap>, +} + + +impl CommandMap { + pub fn new() -> CommandMap + { + CommandMap { + cmd_map: HashMap::new(), + } + } + + + pub fn add_command(&mut self, command: Box) { + self.cmd_map.insert(command.name(), command); + } + + + pub fn commands<'a>(&'a self) -> hash_map::Values<'a, String, Box> { + self.cmd_map.values() + } + + + pub fn run(&self, cmd_name: &str, args: &ArgMatches) -> Result<()> { + if let Some(command) = self.cmd_map.get(cmd_name) { + command.run(args) + } + else { + bail!("Invalid command '{}'", cmd_name) + } + } +} diff --git a/src/commands/init.rs b/src/commands/init.rs new file mode 100644 index 0000000..bc78259 --- /dev/null +++ b/src/commands/init.rs @@ -0,0 +1,72 @@ +// This file is part of bsv. +// +// bsv is free software: you can redistribute it and/or modify it under the +// terms of the GNU Affero General Public License as published by the Free +// Software Foundation, either version 3 of the License, or (at your option) +// any later version. +// +// cdb is distributed in the hope that it will be useful, but WITHOUT ANY +// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +// FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for +// more details. +// +// You should have received a copy of the Affero GNU General Public License +// along with cdb. If not, see . + + +use std::path::PathBuf; +use std::fs::create_dir; + +use clap::{App, Arg, ArgMatches, SubCommand}; + +use crate::core::error::*; + +use super::command::Command; + + +pub struct InitCommand { +} + + +impl InitCommand { + pub fn new() -> InitCommand { + InitCommand { + } + } +} + + +impl Command for InitCommand { + fn name(&self) -> String { + "init".into() + } + + + fn args_parser<'a, 'b>(&self) -> App<'a, 'b> { + SubCommand::with_name("init") + .about("Creates a new repository.") + .arg(Arg::with_name("destination") + .value_name("DESTINATION") + .help("Path where to setup the new repository. Must not exist.") + .required(true) + ) + } + + + fn run(&self, args: &ArgMatches) -> Result<()> { + let repository: PathBuf = + args.value_of_os("destination") + .ok_or("Missing argument 'destination'")? + .into(); + + println!("Init repository at {:?}", repository); + + if repository.exists() { + bail!(ErrorKind::NonEmptyDirectory(repository.clone())) + } + + create_dir(&repository).chain_err(|| "Failed to create repository.")?; + + Ok(()) + } +} diff --git a/src/commands/mod.rs b/src/commands/mod.rs new file mode 100644 index 0000000..5fcf78d --- /dev/null +++ b/src/commands/mod.rs @@ -0,0 +1,31 @@ +// This file is part of bsv. +// +// bsv is free software: you can redistribute it and/or modify it under the +// terms of the GNU Affero General Public License as published by the Free +// Software Foundation, either version 3 of the License, or (at your option) +// any later version. +// +// cdb is distributed in the hope that it will be useful, but WITHOUT ANY +// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +// FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for +// more details. +// +// You should have received a copy of the Affero GNU General Public License +// along with cdb. If not, see . + + +pub mod command; +pub mod init; + + +pub use init::InitCommand; + + +pub fn default_command_map() -> command::CommandMap { + let mut map = command::CommandMap::new(); + + // map.add_command(InitCommand::new()); + map.add_command(Box::new(InitCommand::new())); + + map +} diff --git a/src/core/config.rs b/src/core/config.rs new file mode 100644 index 0000000..a916a6e --- /dev/null +++ b/src/core/config.rs @@ -0,0 +1,23 @@ +// This file is part of bsv. +// +// bsv is free software: you can redistribute it and/or modify it under the +// terms of the GNU Affero General Public License as published by the Free +// Software Foundation, either version 3 of the License, or (at your option) +// any later version. +// +// cdb is distributed in the hope that it will be useful, but WITHOUT ANY +// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +// FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for +// more details. +// +// You should have received a copy of the Affero GNU General Public License +// along with cdb. If not, see . + + +use serde_derive::{Serialize, Deserialize}; + + +#[derive(Debug, Serialize, Deserialize)] +pub struct Config { + pub repository: PathBuf, +} diff --git a/src/core/error.rs b/src/core/error.rs new file mode 100644 index 0000000..57c9116 --- /dev/null +++ b/src/core/error.rs @@ -0,0 +1,32 @@ +// This file is part of bsv. +// +// bsv is free software: you can redistribute it and/or modify it under the +// terms of the GNU Affero General Public License as published by the Free +// Software Foundation, either version 3 of the License, or (at your option) +// any later version. +// +// cdb is distributed in the hope that it will be useful, but WITHOUT ANY +// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +// FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for +// more details. +// +// You should have received a copy of the Affero GNU General Public License +// along with cdb. If not, see . + + +use std::path::PathBuf; + + +error_chain! { + errors { + NoRepositorySpecifiedError { + description("No repository specifed") + display("No repository specifed. Use -r or set BSV_REPOSITORY environment variable.") + } + + NonEmptyDirectory(dir: PathBuf) { + description("Non-empty directory") + display("Target directory {:?} must be empty", dir) + } + } +} diff --git a/src/core/mod.rs b/src/core/mod.rs new file mode 100644 index 0000000..f039268 --- /dev/null +++ b/src/core/mod.rs @@ -0,0 +1,21 @@ +// This file is part of bsv. +// +// bsv is free software: you can redistribute it and/or modify it under the +// terms of the GNU Affero General Public License as published by the Free +// Software Foundation, either version 3 of the License, or (at your option) +// any later version. +// +// cdb is distributed in the hope that it will be useful, but WITHOUT ANY +// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +// FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for +// more details. +// +// You should have received a copy of the Affero GNU General Public License +// along with cdb. If not, see . + + +pub mod error; + + +pub const NAME: &'static str = env!("CARGO_PKG_NAME"); +pub const VERSION: &'static str = env!("CARGO_PKG_VERSION"); diff --git a/src/main.rs b/src/main.rs new file mode 100644 index 0000000..b9c07c4 --- /dev/null +++ b/src/main.rs @@ -0,0 +1,62 @@ +// This file is part of bsv. +// +// bsv is free software: you can redistribute it and/or modify it under the +// terms of the GNU Affero General Public License as published by the Free +// Software Foundation, either version 3 of the License, or (at your option) +// any later version. +// +// cdb is distributed in the hope that it will be useful, but WITHOUT ANY +// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +// FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for +// more details. +// +// You should have received a copy of the Affero GNU General Public License +// along with cdb. If not, see . + + +#[macro_use] +extern crate error_chain; + + +mod core; +mod commands; + + +use clap::{Arg, App, AppSettings}; + +use crate::core::error::*; +use crate::commands::default_command_map; + + +fn run() -> Result<()> { + let command_map = default_command_map(); + + let app = App::new(core::NAME) + .version(core::VERSION) + .author("Simon Boyé ") + .about("Backup, synchronize and versionize your data.") + .setting(AppSettings::SubcommandRequired) + .arg(Arg::with_name("repository") + .short("r") + .long("repository") + .value_name("REPOSITORY") + .help("Path to the repository") + .takes_value(true) + ) + .subcommands(command_map + .commands() + .map(|cmd| cmd.args_parser()) + ) + ; + + let matches = app.get_matches(); + let (cmd_name, cmd_args) = match matches.subcommand() { + (cmd_name, Some(cmd_args)) => { (cmd_name, cmd_args) }, + _ => { bail!("Invalid command") }, + }; + + command_map.run(cmd_name, cmd_args) +} + + +quick_main!(run);