initial commit with PoC

1 files changed, 93 insertions, 0 deletions

diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..b5de3bf
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,93 @@
+mod build;
+mod cli;
+mod config;
+mod utils;
+mod filters;
+
+use std::path::PathBuf;
+
+use cli::Cli;
+
+use clap::Parser;
+use eyre::{Result, WrapErr};
+use log::trace;
+
+fn init_log(quiet: bool, verbosity: u8) {
+    use log::LevelFilter;
+
+    let verbosity = match verbosity {
+        0 => LevelFilter::Info,
+        1 => LevelFilter::Debug,
+        _ => LevelFilter::Trace,
+    };
+
+    let env = env_logger::Env::default().default_filter_or(if quiet {
+        "off".to_string()
+    } else {
+        format!("pandoc_docbook={}", verbosity)
+    });
+
+    let mut builder = env_logger::Builder::from_env(env);
+
+    // Shamelessly taken from pretty_env_logger
+    builder.format(move |f, record| {
+        use std::io::Write;
+
+        let target = record.target();
+
+        let mut style = f.style();
+        let level = colored_level(&mut style, record.level());
+
+        let mut style = f.style();
+        let target = style.set_bold(true).value(target);
+
+        if verbosity >= LevelFilter::Debug {
+            writeln!(f, " {} {} > {}", level, target, record.args())
+        } else {
+            writeln!(f, " {} > {}", level, record.args())
+        }
+    });
+
+    builder.init();
+}
+
+fn colored_level<'a>(
+    style: &'a mut env_logger::fmt::Style,
+    level: log::Level,
+) -> env_logger::fmt::StyledValue<'a, &'static str> {
+    use env_logger::fmt::Color;
+    use log::Level;
+
+    match level {
+        Level::Trace => style.set_color(Color::Magenta).value("TRACE"),
+        Level::Debug => style.set_color(Color::Blue).value("DEBUG"),
+        Level::Info => style.set_color(Color::Green).value("INFO "),
+        Level::Warn => style.set_color(Color::Yellow).value("WARN "),
+        Level::Error => style.set_color(Color::Red).value("ERROR"),
+    }
+}
+
+fn main() -> Result<()> {
+    color_eyre::install()?;
+
+    let cli = Cli::parse();
+    init_log(cli.quiet, cli.verbose);
+
+    let config = config::Config::new(&cli.config)?;
+    trace!("Parsed configuration: {:?}", config);
+
+    std::env::set_current_dir(
+        PathBuf::from(cli.config)
+            .parent()
+            .expect("Configuration file has no parent"),
+    )
+    .wrap_err("Could not change current directory to the configuration file's directory")?;
+
+    match cli.subcommand {
+        cli::SubCommand::Build => {
+            build::do_build(&config)?
+        }
+    }
+
+    Ok(())
+}