Rewrite in rust

This commit is contained in:
Arsen Musayelyan 2021-06-03 15:26:30 -07:00
parent 6199802e26
commit a7d4ac9c6d
6 changed files with 372 additions and 62 deletions

2
.gitignore vendored
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.idea/
/target

205
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Cargo.toml Normal file
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[package]
name = "gitm-rs"
version = "0.1.0"
authors = ["Arsen Musayelyan <moussaelianarsen@gmail.com>"]
edition = "2018"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
toml = "0.5"
serde_derive = "1.0"
serde = "1.0"
log = "0.4"
env_logger = "0.8"

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# Gitm
Automatic git mirroring script.
Automatic git mirroring program.
### How it works
This is a simple script that intercepts commands like `git init` and `git push` and automatically configures and pushes to many different remotes.
This is a simple program that intercepts commands like `git init` and `git push` and automatically configures and pushes to many different remotes.
### Usage
To use this script, create a file called `.gitm.toml` and populate it with repositories like so:
To use this program, create a file called `.gitm.toml` and populate it with repositories like so:
```toml
[repos]
origin = "https://gitea.arsenm.dev/Arsen6331/gitm.git"

58
gitm.rb
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#!/usr/bin/ruby
# Gitm. Automatic git mirroring script.
#
# Copyright (C) 2021 Arsen Musayelyan <arsen@arsenm.dev>
#
# This program is free software: you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free Software
# Foundation, either version 3 of the License, or (at your option) any later
# version.
#
# This program 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 General Public License for more details.
# You should have received a copy of the GNU General Public License along with
# this program. If not, see <https://www.gnu.org/licenses/>.
require 'toml'
require 'colorize'
args = ARGV
cfgName = ".gitm.toml"
def log(str)
txt = "[gitm]".cyan
puts "#{txt} #{str}"
end
File.open(cfgName, "a") {} unless File.exists? cfgName
cfgData = TOML::Parser.new(File.read(cfgName)).parsed
repos = cfgData["repos"] || {}
branch = cfgData["defaultBranch"] || "master"
if repos["origin"].nil?
log "Error: origin repo required"
exit 1
end
if repos.length < 1
puts "Please add repos to the #{cfgName} file"
exit 1
end
case args[0]
when "push"
log "Intercepted push command"
repos.each { |name, _| system "git push #{name} #{branch}", *args[1...] }
when "init"
log "Intercepted init command"
system "git init", *args[1...]
repos.each { |name, repo| system "git remote add #{name} #{repo}" }
system "git fetch origin"
system "git checkout master"
else
system "git", *args
end

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src/main.rs Normal file
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use std::{collections::HashMap, env, process::{Command, Child, exit}};
use serde_derive::Deserialize;
use std::fs;
use toml;
#[macro_use]
extern crate log;
// TOML config filename
const CFG_NAME: &str = ".gitm.toml";
// Config struct stores decoded TOML from config
#[derive(Deserialize, Default)]
struct Config {
repos: HashMap<String, String>,
options: Option<Options>,
}
// Options struct stores the options table in the TOML config
#[derive(Deserialize, Default)]
struct Options {
branch: Option<String>,
}
fn main() {
// Create new logger with level Info and no timestamp
env_logger::builder()
.filter_level(log::LevelFilter::Info)
.format_timestamp(None)
.init();
// Get config contents
let cfg_contents = fs::read_to_string(CFG_NAME).log_err("Error reading file");
// Decode config contents
let config: Config = toml::from_str(&cfg_contents).unwrap_or_default();
// If no repos provided, error and exit
if config.repos.len() < 1 {
error!("Please add repos to the {} file", CFG_NAME);
exit(1)
}
// If origin repo is not defined, error and exit
if config.repos.get("origin").is_none() {
error!("Origin repo required in {} file", CFG_NAME);
exit(1);
}
// Collect arguments into vector
let args: Vec<String> = env::args().collect();
// If no arguments provided
if args.len() < 2 {
// Run git --help
let mut proc = Command::new("git").arg("--help").spawn()
.log_err("Error running git command");
exit_if_code_nonzero(&mut proc);
}
// Ensure options exists in config, otherwise set to default
let options = config.options.unwrap_or_default();
// Ensure branch exists in options, otherwise set to "master"
let branch = options.branch.unwrap_or("master".to_string());
match args[1].as_str() {
"push" => {
info!("Intercepted push command");
// For every repo in config
for (name, _) in config.repos {
// Run git push with applicable arguments
let mut proc = Command::new("git")
.args(&["push", &name, &branch])
.args(&args[2..])
.spawn()
.log_err("Error running git command");
exit_if_code_nonzero(&mut proc);
}
},
"init" => {
info!("Intercepted init command");
// Run git init with any preceding arguments
let mut proc = Command::new("git").arg("init").args(&args[2..]).spawn()
.log_err("Error running git command");
exit_if_code_nonzero(&mut proc);
// For every repo in config
for (name, repo) in config.repos {
// Run git remote add with name and repository URL
let mut proc = Command::new("git")
.args(&["remote", "add", &name, &repo])
.spawn()
.log_err("Error running git command");
exit_if_code_nonzero(&mut proc);
}
// Run git fetch origin
proc = Command::new("git").args(&["fetch", "origin"]).spawn()
.log_err("Error running git command");
exit_if_code_nonzero(&mut proc);
// Run git checkout master
proc = Command::new("git").args(&["checkout", "master"]).spawn()
.log_err("Error running git command");
exit_if_code_nonzero(&mut proc);
},
// Default
_ => {
// Run git, passing through all arguments provided
let mut proc = Command::new("git").args(&args[1..]).spawn()
.log_err("Error running git command");
exit_if_code_nonzero(&mut proc);
}
}
}
fn exit_if_code_nonzero(proc: &mut Child) {
// Wait for process and get exit status
let status = proc.wait().log_err("Command was not running");
// Get exit code, default 0
let exit_code = status.code().unwrap_or(0);
// If nonzero exit code
if exit_code != 0 {
// Exit with the same exit code as process
exit(exit_code)
}
}
// Trait LogErr allows user-friendly error messages
trait LogErr<T> {
fn log_err(self, msg: &str) -> T;
}
// Implement LogErr on Result of any type where E implements Debug
impl<T, E> LogErr<T> for Result<T, E> where E: ::std::fmt::Debug {
// log_err unwraps Result, logging error and exiting if needed
fn log_err(self, msg: &str) -> T {
match self {
// If no error
Ok(res) => {
// Return value within Result
return res
}
// If error
Err(err) => {
// Log error in format "message: error" and exit
error!("{}: {:?}", msg, err);
exit(1)
},
}
}
}