twixter

A twtxt command line client in Rust

git clone git://git.shimmy1996.com/twixter.git
commit 12152127b7d7ae507efd6e48a2b8438ff99d0968
Author: Shimmy Xu <shimmy.xu@shimmy1996.com>
Date:   Mon,  2 Sep 2019 21:43:37 -0400

Initial Commit

Diffstat:
A.gitignore | 2++
ACargo.toml | 11+++++++++++
ALICENSE-APACHE | 201+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
ALICENSE-MIT | 19+++++++++++++++++++
AREADME.org | 10++++++++++
Aconfig.example | 5+++++
Asrc/main.rs | 96+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
7 files changed, 344 insertions(+), 0 deletions(-)
diff --git a/.gitignore b/.gitignore
@@ -0,0 +1,2 @@
+/target
+**/*.rs.bk
diff --git a/Cargo.toml b/Cargo.toml
@@ -0,0 +1,10 @@
+[package]
+name = "twixter"
+version = "0.1.0"
+authors = ["Shimmy Xu <shimmy.xu@shimmy1996.com>"]
+edition = "2018"
+
+[dependencies]
+chrono = "0.4.8"
+toml = "0.5.3"
+dirs = "2.0"+
\ No newline at end of file
diff --git a/LICENSE-APACHE b/LICENSE-APACHE
@@ -0,0 +1,201 @@
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diff --git a/LICENSE-MIT b/LICENSE-MIT
@@ -0,0 +1,19 @@
+Copyright 2019 Shimmy Xu
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
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+SOFTWARE.
diff --git a/README.org b/README.org
@@ -0,0 +1,10 @@
+* Twixter
+A [[https://twtxt.readthedocs.io][twtxt]] command line client written in Rust.
+
+** Configuration
+Configurations are stored as TOML file under =$XDG_CONFIG_HOME/twixter/config=. See =./config.example= for available configurations.
+
+** License
+Licensed under either of Apache License, Version 2.0 (=./LICENSE-APACHE=) or MIT license (=./LICENSE-MIT=) at your option.
+
+Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in Twixter by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.
diff --git a/config.example b/config.example
@@ -0,0 +1,5 @@
+nick = "user"
+twtfile = "~/.local/share/twixter/twtxt.txt"
+twturl = "https://example.org/twtxt.txt"
+scp_addr = "user@example.org:~/public_html/twtxt.txt"
+scp_port = 22
diff --git a/src/main.rs b/src/main.rs
@@ -0,0 +1,96 @@
+use std::fs::{File, OpenOptions};
+use std::io::prelude::*;
+use std::path::Path;
+use std::process::Command;
+
+#[derive(Debug)]
+struct Config {
+    nick: String,
+    twtfile: String,
+    twturl: String,
+    scp_addr: String,
+    scp_port: String,
+}
+
+impl Config {
+    fn new(config_path: &Path) -> Config {
+        use toml::Value;
+
+        let mut f = File::open(config_path).unwrap();
+        let mut buffer = String::new();
+        f.read_to_string(&mut buffer).unwrap();
+
+        let config = buffer.parse::<Value>().unwrap();
+        Config {
+            nick: config["nick"].as_str().unwrap().to_string(),
+            twtfile: config["twtfile"].as_str().unwrap().to_string(),
+            twturl: config["twturl"].as_str().unwrap().to_string(),
+            scp_addr: config["scp_addr"].as_str().unwrap().to_string(),
+            scp_port: config["scp_port"].as_integer().unwrap().to_string(),
+        }
+    }
+}
+
+fn main() {
+    // Source config.
+    let mut config_dir = dirs::config_dir().unwrap();
+    config_dir.push("twixter/config");
+    let config = Config::new(&config_dir);
+
+    // Check if twtfile exists and create one if necessary.
+    let twtfile_path = Path::new(&config.twtfile).parent().unwrap();
+    if !twtfile_path.exists() {
+        std::fs::create_dir_all(twtfile_path).unwrap();
+    }
+
+    // Fetch current twtfile.
+    fetch(&config);
+
+    // Add user post.
+    let content = std::env::args().skip(1).collect::<Vec<String>>().join(" ");
+    if content == "" {
+        eprintln!("Error: post content must not be empty");
+    } else {
+        let post = compose(content);
+
+        let mut file = OpenOptions::new()
+            .append(true)
+            .create(true)
+            .open(&config.twtfile)
+            .unwrap();
+
+        file.write(post.as_bytes())
+            .expect("Unable to write new post");
+    }
+
+    // Publish to remote.
+    publish(&config);
+}
+
+fn fetch(config: &Config) {
+    // Uses scp to fetch latest twtfile.
+    Command::new("scp")
+        .args(&["-P", &config.scp_port, &config.scp_addr, &config.twtfile])
+        .output()
+        .expect("Failed to pull!");
+}
+
+fn publish(config: &Config) {
+    // Publishes twtfile to remote.
+    Command::new("scp")
+        .args(&["-P", &config.scp_port, &config.twtfile, &config.scp_addr])
+        .output()
+        .expect("Failed to publish!");
+}
+
+fn compose(content: String) -> String {
+    // Formats given content into twtxt format by adding datetime.
+    use chrono::{Local, SecondsFormat};
+    let timestamp = Local::now().to_rfc3339_opts(SecondsFormat::Secs, true);
+    let mut post = String::new();
+    post.push_str(&timestamp);
+    post.push('\t');
+    post.push_str(&content);
+    post.push('\n');
+    post
+}