Launch with defaults upon invalid config/theme (#982)

* Launch with defaults upon invalid config/theme

* Startup message if there is a problematic config
* Statusline error if trying to switch to an invalid theme

* Use serde `deny_unknown_fields` for config
pull/994/head
Omnikar 3 years ago committed by GitHub
parent 2c1313c064
commit ed23057ff8
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23

@ -3,6 +3,7 @@ use serde::Deserialize;
use crate::keymap::Keymaps; use crate::keymap::Keymaps;
#[derive(Debug, Default, Clone, PartialEq, Deserialize)] #[derive(Debug, Default, Clone, PartialEq, Deserialize)]
#[serde(deny_unknown_fields)]
pub struct Config { pub struct Config {
pub theme: Option<String>, pub theme: Option<String>,
#[serde(default)] #[serde(default)]
@ -14,7 +15,7 @@ pub struct Config {
} }
#[derive(Debug, Default, Clone, PartialEq, Deserialize)] #[derive(Debug, Default, Clone, PartialEq, Deserialize)]
#[serde(rename_all = "kebab-case")] #[serde(rename_all = "kebab-case", deny_unknown_fields)]
pub struct LspConfig { pub struct LspConfig {
pub display_messages: bool, pub display_messages: bool,
} }

@ -91,7 +91,16 @@ FLAGS:
} }
let config = match std::fs::read_to_string(conf_dir.join("config.toml")) { let config = match std::fs::read_to_string(conf_dir.join("config.toml")) {
Ok(config) => merge_keys(toml::from_str(&config)?), Ok(config) => toml::from_str(&config)
.map(merge_keys)
.unwrap_or_else(|err| {
eprintln!("Bad config: {}", err);
eprintln!("Press <ENTER> to continue with default config");
use std::io::Read;
// This waits for an enter press.
let _ = std::io::stdin().read(&mut []);
Config::default()
}),
Err(err) if err.kind() == std::io::ErrorKind::NotFound => Config::default(), Err(err) if err.kind() == std::io::ErrorKind::NotFound => Config::default(),
Err(err) => return Err(Error::new(err)), Err(err) => return Err(Error::new(err)),
}; };

@ -34,7 +34,7 @@ where
} }
#[derive(Debug, Clone, PartialEq, Deserialize)] #[derive(Debug, Clone, PartialEq, Deserialize)]
#[serde(rename_all = "kebab-case", default)] #[serde(rename_all = "kebab-case", default, deny_unknown_fields)]
pub struct Config { pub struct Config {
/// Padding to keep between the edge of the screen and the cursor when scrolling. Defaults to 5. /// Padding to keep between the edge of the screen and the cursor when scrolling. Defaults to 5.
pub scrolloff: usize, pub scrolloff: usize,
@ -195,6 +195,12 @@ impl Editor {
} }
pub fn set_theme(&mut self, theme: Theme) { pub fn set_theme(&mut self, theme: Theme) {
// `ui.selection` is the only scope required to be able to render a theme.
if theme.find_scope_index("ui.selection").is_none() {
self.set_error("Invalid theme: `ui.selection` required".to_owned());
return;
}
let scopes = theme.scopes(); let scopes = theme.scopes();
for config in self for config in self
.syn_loader .syn_loader

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