chore: init

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Compositr 2024-12-25 17:38:38 +08:00
parent 14557d81fc
commit 9367add1b9
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GPG key ID: 91E3DE20129A0B4A
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dependencies = [
"memchr",
]

13
Cargo.toml Normal file
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[package]
name = "diaryrs"
version = "0.1.0"
edition = "2021"
[dependencies]
chrono = "0.4.39"
chrono-tz = "0.10.0"
clap = { version = "4.5.23", features = ["derive"] }
iana-time-zone = "0.1.61"
indoc = "2.0.5"
serde = { version = "1.0.216", features = ["derive"] }
toml = "0.8.19"

1
diaryrs.toml Normal file
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base_path = "./Diary"

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68
src/args.rs Normal file
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use std::path::PathBuf;
use clap::{Parser, Subcommand};
use diaryrs::macros::UnwrapOrFatalAble;
use serde::Deserialize;
#[derive(Parser)]
pub struct Args {
#[command(subcommand)]
pub cmd: Commands,
}
#[derive(Subcommand, Clone)]
pub enum Commands {
/// Print basic configuration information
Info,
/// Write diary entry file for today
Today,
}
#[derive(Debug, Deserialize)]
pub struct Config {
// Global options
/// The base path for diary entries
pub base_path: PathBuf,
/// Path where the config file was found. Not deserialised from the file
#[serde(skip_deserializing)]
pub config_path: PathBuf,
}
impl Config {
const CONFIG_PATHS: [&str; 5] = [
"diaryrs.toml",
"diary.toml",
"~/.config/diaryrs.toml",
"~/diaryrs.toml",
"~/.diaryrs.toml",
];
pub fn read() -> Result<Self, Box<dyn std::error::Error>> {
let (config_str, config_path) = try_files(
Vec::from(Self::CONFIG_PATHS)
.into_iter()
.map(|p| PathBuf::from(p))
.collect(),
)
.unwrap_or_fatal("No config file found");
let config: Config = toml::from_str(&config_str)?;
Ok(Config {
config_path,
..config
})
}
}
/// Try a list of file paths and return the contents of the first file
/// that exists. If all files have been tried none exist, None is returned
fn try_files(paths: Vec<PathBuf>) -> Option<(String, PathBuf)> {
for path in paths {
match std::fs::read_to_string(&path) {
Ok(contents) => return Some((contents, path)),
Err(_) => continue,
}
}
None
}

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src/lib.rs Normal file
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pub mod macros;
pub mod time;

42
src/macros.rs Normal file
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/// Print a message to stderr and exit with status code 1 to avoid using
/// .expect() or .unwrap()
///
/// Arguments are passed to `format!` to format the message
#[macro_export]
macro_rules! fatal {
($($arg:tt)*) => {
{
eprintln!("[FATAL] {}", format!($($arg)*));
std::process::exit(1);
}
}
}
pub trait UnwrapOrFatalAble<T> {
fn unwrap_or_fatal(self, msg: &str) -> T;
}
impl<T> UnwrapOrFatalAble<T> for Option<T> {
/// Unwraps an `Option<T>` into its inner value or exits the program with
/// a fatal message
fn unwrap_or_fatal(self, msg: &str) -> T {
match self {
Some(val) => val,
None => fatal!("{}", msg),
}
}
}
impl<T, E> UnwrapOrFatalAble<T> for Result<T, E>
where
E: std::fmt::Display,
{
/// Unwraps a `Result<T, E>` into its inner value or exits the program with
/// a fatal message
fn unwrap_or_fatal(self, msg: &str) -> T {
match self {
Ok(val) => val,
Err(e) => fatal!("{}: {}", msg, e),
}
}
}

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mod args;
use args::{Args, Config};
use clap::Parser;
use diaryrs::{macros::UnwrapOrFatalAble, time::Time};
use indoc::formatdoc;
use std::fs;
use std::io::prelude::*;
fn main() {
let args = Args::parse();
match args.cmd {
args::Commands::Info => {
let time = Time::build().unwrap_or_fatal("Failed to determine time information");
let config = Config::read().unwrap_or_fatal("Failed to read config file");
println!(
"[TIME] Timestamp: {}, Timezone: {}",
time.timestamp, time.timezone
);
println!("[CONFIG] {:?}", config);
}
args::Commands::Today => {
let time = Time::build().unwrap_or_fatal("Failed to determine time information");
let config = Config::read().unwrap_or_fatal("Failed to read config file");
let entry = fmt_entry(&time);
// Create folder for day (YYYY-MM-DD)
let year = time.datetime.format("%Y").to_string();
let month = time.datetime.format("%m").to_string();
let month_name = time.datetime.format("%B").to_string();
let day = time.datetime.format("%d").to_string();
let ymd = format!("{}-{}-{}", year, month, day);
let dir_path = config
.base_path
.join(&year)
.join(&month_name)
.join(&ymd);
fs::create_dir_all(&dir_path)
.unwrap_or_fatal("Failed to create directory for today's entry");
// Write entry to file if not exists
let file_path = dir_path.join(format!("{ymd}.md"));
let mut file_handle = fs::OpenOptions::new()
.write(true)
.create_new(true)
.open(file_path)
.unwrap_or_fatal("Error opening today's entry for writing!");
match file_handle.write(entry.as_bytes()) {
Ok(_) => println!("Successfully wrote diary entry for {ymd}. Happy journaling!"),
Err(e) => eprintln!("Error: Failed to write diary entry: {e}"),
};
}
}
}
fn fmt_entry(time: &Time) -> String {
let yaml = formatdoc!(
r#"
---
timestamp: "{}"
timezone: "{}"
---"#,
time.timestamp,
time.timezone
);
formatdoc!(
"
{}
# Dreams
# Entry
Dear Diary,
",
yaml
)
}

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src/time.rs Normal file
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use chrono::prelude::*;
pub struct Time {
pub datetime: DateTime<Local>,
pub timestamp: String,
pub timezone: String,
}
impl Time {
pub fn build() -> Result<Self, Box<dyn std::error::Error>> {
let local: DateTime<Local> = Local::now();
// rfc3339 equiv. to stricter ISO 8601
let timestamp = local.to_rfc3339();
let tz_offset = local.format("%z").to_string();
let tz_name = iana_time_zone::get_timezone()?;
let timezone = format!("{} ({})", tz_name, tz_offset);
Ok(Time {
datetime: local,
timestamp,
timezone,
})
}
}