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//! Definition of an iris [config][Config].
use crate::{get_writer, path, Plugin, Result};
use log::trace;
use std::{fs, io::Write, path::Path};
/// Iris config
#[derive(Debug)]
pub struct Config {
/// List of iris plugin specifications
pub plugins: Vec<Plugin>,
}
impl Config {
/// Read an iris config from the file system
pub fn read_from_file<P>(path: P) -> Result<Self>
where
P: AsRef<Path>,
{
trace!("reading: {}", path.as_ref().display());
let contents = fs::read_to_string(&path)?;
let iris = Self::parse(&contents)?;
Ok(iris)
}
/// Read an iris config from the plugin file path
pub fn read_from_plugin_file() -> Result<Self> {
trace!("read from plugin file");
Self::read_from_file(path::plugin_file())
}
/// Read an iris config from the lock file path
pub fn read_from_lock_file() -> Result<Self> {
trace!("read from lock file");
Self::read_from_file(path::lock_file())
}
/// Write the iris config to the file system.
pub fn write_to_file<P>(&self, path: P) -> Result<()>
where
P: AsRef<Path>,
{
trace!("writing: {}", path.as_ref().display());
let contents = self.to_string()?;
let mut write = get_writer(&path, '#')?;
write.write_all(contents.as_bytes())?;
Ok(())
}
/// Write the iris config to the plugins file.
pub fn write_to_plugin_file(&self) -> Result<()> {
self.write_to_file(path::plugin_file())
}
/// Write the iris config to the lock file.
pub fn write_to_lock_file(&self) -> Result<()> {
self.write_to_file(path::lock_file())
}
/// Write the vim autoload file formed from each plugin.
pub fn write_autoload_file(&self) -> Result<()> {
let path = path::autoload_file();
trace!("writing: {}", path.display());
let mut f = get_writer(&path, '"')?;
// BEGIN iris#load
writeln!(f, "function! iris#load()")?;
// add each plugin to load path
for plugin in &self.plugins {
// runtime path
{
let path = plugin.runtime_path().display();
writeln!(f, "set runtimepath+={path}")?;
}
// lua package path
if let Some(path) = plugin.lua_package_path() {
let path = path.display();
writeln!(f, "lua package.path = package.path .. \";{path}\"")?;
}
// vim source file
if let Some(path) = plugin.vim_source_file() {
let path = path.display();
writeln!(f, "source {path}")?;
}
// lua source file
if let Some(path) = plugin.lua_source_file() {
let path = path.display();
writeln!(f, "lua dofile('{path}')")?;
}
}
for plugin in &self.plugins {
// vim source after file
if let Some(path) = plugin.vim_source_after_file() {
let path = path.display();
writeln!(f, "source {path}")?;
}
// lua source after file
if let Some(path) = plugin.lua_source_after_file() {
let path = path.display();
writeln!(f, "lua dofile('{path}')")?;
}
}
writeln!(f, "endfunction")?;
// END iris#load
Ok(())
}
}
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