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use std::io::{Read, Write};
use clap::{Arg, ArgMatches, Command};
use crate::{
error::LimpError,
files::{
add_to_snippets_dir, config_path, create_project, find_toml, open, remove_from_snippets_dir,
},
parser::SnippetEntity,
storage::{JsonDependency, JsonStorage},
};
pub enum Action {
Init {
name: String,
dependencies: Option<Vec<String>>,
},
NewDependency {
name: String,
version: Option<String>,
features: Option<Vec<String>>,
path_to_snippet: Option<String>,
},
Delete {
name: String,
},
Add {
name: String,
},
Link {
name: String,
path_to_snippet: String,
},
Unlink {
name: String,
},
Update,
List,
}
#[derive(Default)]
pub struct CommandHandler {
pub action: Option<Action>,
}
impl CommandHandler {
pub fn build() -> Command {
Command::new("limp")
.about("Limp is a simple CLI tool for managing your rust projects.")
.version("v0.2.1")
.subcommand_required(true)
.subcommand(
Command::new("init")
.about("Initialize a new project")
.arg(Arg::new("name").required(true))
.arg(
Arg::new("dependencies")
.required(false)
.short('d')
.long("dependencies")
.num_args(0..)
.help("Optional dependencies"),
),
)
.subcommand(
Command::new("new")
.about("Add a new dependency")
.arg(Arg::new("name").required(true))
.arg(
Arg::new("version")
.required(false)
.short('v')
.long("version")
.help("Specify version"),
)
.arg(
Arg::new("path_to_snippet")
.required(false)
.short('p')
.long("path")
.help("Path to snippet"),
)
.arg(
Arg::new("features")
.required(false)
.short('f')
.long("features")
.num_args(0..)
.help("Optional features"),
),
)
.subcommand(
Command::new("del")
.about("Delete dependency")
.arg(Arg::new("name").required(true)),
)
.subcommand(
Command::new("add")
.about("Add dependency to existing project")
.arg(Arg::new("name").required(true)),
)
.subcommand(
Command::new("link")
.about("Link dependency to snippet")
.arg(Arg::new("name").required(true))
.arg(Arg::new("path_to_snippet").required(true)),
)
.subcommand(
Command::new("unlink")
.about("Unlink dependency from snippet")
.arg(Arg::new("name").required(true)),
)
.subcommand(Command::new("list").about("List dependencies"))
.subcommand(Command::new("update").about("Update dependencies"))
.subcommand(Command::new("version").about("Print version"))
}
pub fn parse(args: &ArgMatches) -> Self {
Self {
action: match args.subcommand() {
Some((subname, subargs)) => match subname {
"init" => Some(Action::Init {
name: subargs.get_one::<String>("name").unwrap().clone(),
dependencies: subargs
.get_many::<String>("dependencies")
.map(|d| d.cloned().collect()),
}),
"new" => Some(Action::NewDependency {
name: subargs.get_one::<String>("name").unwrap().clone(),
version: subargs.get_one::<String>("version").map(|v| {
match v
.split(".")
.map(|s| s.parse::<u16>().unwrap_or_default())
.collect::<Vec<u16>>()
.len()
{
// 1.1.1 -> nothing change
3 => v.to_string(),
// 0.25 -> 0.25.0
2 => format!("{}.0", v),
// 1 -> 1.0.0
1 => format!("{}.0.0", v),
// no way
_ => unreachable!(),
}
}),
features: subargs
.get_many::<String>("features")
.map(|f| f.cloned().collect()),
path_to_snippet: subargs.get_one::<String>("path_to_snippet").cloned(),
}),
"del" => Some(Action::Delete {
name: subargs.get_one::<String>("name").unwrap().clone(),
}),
"add" => Some(Action::Add {
name: subargs.get_one::<String>("name").unwrap().clone(),
}),
"link" => Some(Action::Link {
name: subargs.get_one::<String>("name").unwrap().clone(),
path_to_snippet: subargs
.get_one::<String>("path_to_snippet")
.unwrap()
.clone(),
}),
"unlink" => Some(Action::Unlink {
name: subargs.get_one::<String>("name").unwrap().clone(),
}),
"list" => Some(Action::List),
"update" => Some(Action::Update),
_ => None,
},
None => None,
},
}
}
pub fn make_action(&self) -> Result<(), LimpError> {
if let Some(act) = &self.action {
match act {
Action::Init { name, dependencies } => {
let js = JsonStorage::load(config_path())?;
let mut odeps = None;
if let Some(deps) = dependencies {
let mut result_deps = vec![];
for d in deps.iter() {
result_deps.push(match js.get(d) {
Some(d) => d.clone(),
None => JsonDependency::new(d)?,
});
}
if !result_deps.is_empty() {
odeps = Some(result_deps);
}
}
println!("Adding dependencies: {:?} to {}", odeps, name);
create_project(name, odeps.as_deref())?;
println!("Done");
}
Action::NewDependency {
name,
version,
features,
path_to_snippet,
} => {
let mut js = JsonStorage::load(config_path())?;
let jd = JsonDependency::new_full(
name,
version.as_deref(),
features.as_deref(),
path_to_snippet.as_deref(),
)?;
js.add(jd);
js.save(config_path())?;
println!("Successfully added {}", name);
}
Action::Delete { name } => {
let mut js = JsonStorage::load(config_path())?;
js.remove(name);
remove_from_snippets_dir(name)?;
js.save(config_path())?;
println!("Successfully deleted {}", name);
}
Action::Add { name } => {
if let Some(path) = find_toml() {
let mut file = open(path)?;
let js = JsonStorage::load(config_path())?;
let mut content = String::new();
file.read_to_string(&mut content)?;
let deps = if let Some(existing_deps) = js.get(name) {
existing_deps.to_string()
} else {
JsonDependency::new(name)?.to_string()
};
if content.contains("[dependencies]") {
writeln!(file, "{}", deps)?
} else {
writeln!(file, "\n[dependencies]")?;
writeln!(file, "{}", deps)?
}
} else {
return Err(LimpError::CargoTomlNotFound(format!(
"dep: {}\npath: {}",
name,
std::env::current_dir().unwrap().display()
)));
}
}
Action::Link {
name,
path_to_snippet,
} => {
let mut js = JsonStorage::load(config_path())?;
let p = SnippetEntity::from_file(path_to_snippet)?;
let path_to_snippet = add_to_snippets_dir(name, p.to_string().as_str())?;
js.dependencies
.get_mut(name)
.ok_or(LimpError::DependencyNotFound(name.to_string()))?
.path_to_snippet = Some(path_to_snippet.clone());
js.save(config_path())?;
println!("Successfully linked {} to {}", name, path_to_snippet);
}
Action::Unlink { name } => {
let mut js = JsonStorage::load(config_path())?;
js.dependencies
.get_mut(name)
.ok_or(LimpError::DependencyNotFound(name.to_string()))?
.path_to_snippet = None;
remove_from_snippets_dir(name)?;
js.save(config_path())?;
println!("Successfully unlinked {}", name);
}
Action::List => {
let js = JsonStorage::load(config_path())?;
js.dependencies.iter().enumerate().for_each(|(i, (_, d))| {
println!("{} id:", i + 1);
println!(" - {}", d.name);
println!(" - {}", d.version);
if let Some(f) = &d.features {
println!(" - {}", f.join(", "));
}
if let Some(p) = &d.path_to_snippet {
println!(" - {}", p);
}
});
}
Action::Update => {
let mut js = JsonStorage::load(config_path())?;
js.dependencies
.iter_mut()
.map(|(_, d)| d)
.try_for_each(|d| d.update())?;
js.save(config_path())?;
println!("Successfully updated all dependencies");
}
}
}
Ok(())
}
}