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logs: Silence missing file warnings

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This commit is contained in:
Dorota Czaplejewicz
2019-10-03 12:59:26 +00:00
parent 94aec87b5d
commit e14d411150
2 changed files with 61 additions and 40 deletions
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4
examples/test_layout.rs
View File

@ -3,13 +3,13 @@ extern crate xkbcommon;
use std::env;
use rs::data::{ load_layout_from_resource, LoadError };
use rs::data::{ Layout, LoadError };
use xkbcommon::xkb;
fn check_layout(name: &str) {
let layout = load_layout_from_resource(name)
let layout = Layout::from_resource(name)
.and_then(|layout| layout.build().map_err(LoadError::BadKeyMap))
.expect("layout broken");

95
src/data.rs
View File

@ -67,15 +67,6 @@ impl fmt::Display for LoadError {
}
}
pub fn load_layout_from_resource(
name: &str
) -> Result<Layout, LoadError> {
let data = resources::get_keyboard(name)
.ok_or(LoadError::MissingResource)?;
serde_yaml::from_str(data)
.map_err(|e| LoadError::BadResource(e))
}
#[derive(Debug, PartialEq)]
enum DataSource {
File(PathBuf),
@ -101,11 +92,13 @@ fn load_layout(
DataSource, // last attempt source
Option<(LoadError, DataSource)>, // first attempt source
) {
let path = keyboards_path.map(|path| path.join(name).with_extension("yaml"));
let path = keyboards_path.map(|path|
path.join(name).with_extension("yaml")
);
let layout = match path {
Some(path) => Some((
Layout::from_yaml_stream(path.clone())
Layout::from_file(path.clone())
.map_err(LoadError::BadData)
.and_then(|layout|
layout.build().map_err(LoadError::BadKeyMap)
@ -124,7 +117,7 @@ fn load_layout(
let (layout, source) = match layout {
Some((layout, path)) => (Ok(layout), path),
None => (
load_layout_from_resource(name)
Layout::from_resource(name)
.and_then(|layout|
layout.build().map_err(LoadError::BadKeyMap)
),
@ -135,6 +128,24 @@ fn load_layout(
(layout, source, failed_attempt)
}
fn log_attempt_info(attempt: Option<(LoadError, DataSource)>) {
match attempt {
Some((
LoadError::BadData(Error::Missing(_e)),
DataSource::File(_file)
)) => {
// Missing file, not to worry. TODO: print in debug logging level
}
Some((e, source)) => {
eprintln!(
"Failed to load layout from {}: {}, trying builtin",
source, e
);
},
_ => {}
};
}
fn load_layout_with_fallback(
name: &str
) -> ::layout::Layout {
@ -144,12 +155,7 @@ fn load_layout_with_fallback(
let (layout, source, attempt) = load_layout(name, path.clone());
if let Some((e, source)) = attempt {
eprintln!(
"Failed to load layout from {}: {}, trying builtin",
source, e
);
};
log_attempt_info(attempt);
let (layout, source, attempt) = match (layout, source) {
(Err(e), source) => {
@ -162,12 +168,7 @@ fn load_layout_with_fallback(
(res, source) => (res, source, None),
};
if let Some((e, source)) = attempt {
eprintln!(
"Failed to load layout from {}: {}, trying builtin",
source, e
);
};
log_attempt_info(attempt);
match (layout, source) {
(Err(e), source) => {
@ -241,10 +242,15 @@ struct Outline {
bounds: Bounds,
}
/// Errors encountered loading the layout into yaml
#[derive(Debug)]
pub enum Error {
Yaml(serde_yaml::Error),
Io(io::Error),
/// The file was missing.
/// It's distinct from Io in order to make it matchable
/// without calling io::Error::kind()
Missing(io::Error),
}
impl fmt::Display for Error {
@ -252,21 +258,38 @@ impl fmt::Display for Error {
match self {
Error::Yaml(e) => write!(f, "YAML: {}", e),
Error::Io(e) => write!(f, "IO: {}", e),
Error::Missing(e) => write!(f, "Missing: {}", e),
}
}
}
impl From<io::Error> for Error {
fn from(e: io::Error) -> Self {
let kind = e.kind();
match kind {
io::ErrorKind::NotFound => Error::Missing(e),
_ => Error::Io(e),
}
}
}
impl Layout {
fn from_yaml_stream(path: PathBuf) -> Result<Layout, Error> {
pub fn from_resource(name: &str) -> Result<Layout, LoadError> {
let data = resources::get_keyboard(name)
.ok_or(LoadError::MissingResource)?;
serde_yaml::from_str(data)
.map_err(LoadError::BadResource)
}
fn from_file(path: PathBuf) -> Result<Layout, Error> {
let infile = BufReader::new(
fs::OpenOptions::new()
.read(true)
.open(&path)
.map_err(Error::Io)?
.open(&path)?
);
serde_yaml::from_reader(infile)
.map_err(Error::Yaml)
serde_yaml::from_reader(infile).map_err(Error::Yaml)
}
pub fn build(self) -> Result<::layout::Layout, FormattingError> {
let button_names = self.views.values()
.flat_map(|rows| {
@ -520,9 +543,7 @@ mod tests {
#[test]
fn test_parse_path() {
assert_eq!(
Layout::from_yaml_stream(
PathBuf::from("tests/layout.yaml")
).unwrap(),
Layout::from_file(PathBuf::from("tests/layout.yaml")).unwrap(),
Layout {
row_spacing: 0f64,
button_spacing: 0f64,
@ -553,7 +574,7 @@ mod tests {
/// Check if the default protection works
#[test]
fn test_empty_views() {
let out = Layout::from_yaml_stream(PathBuf::from("tests/layout2.yaml"));
let out = Layout::from_file(PathBuf::from("tests/layout2.yaml"));
match out {
Ok(_) => assert!(false, "Data mistakenly accepted"),
Err(e) => {
@ -571,7 +592,7 @@ mod tests {
#[test]
fn test_extra_field() {
let out = Layout::from_yaml_stream(PathBuf::from("tests/layout3.yaml"));
let out = Layout::from_file(PathBuf::from("tests/layout3.yaml"));
match out {
Ok(_) => assert!(false, "Data mistakenly accepted"),
Err(e) => {
@ -590,7 +611,7 @@ mod tests {
#[test]
fn test_layout_punctuation() {
let out = Layout::from_yaml_stream(PathBuf::from("tests/layout_key1.yaml"))
let out = Layout::from_file(PathBuf::from("tests/layout_key1.yaml"))
.unwrap()
.build()
.unwrap();
@ -605,7 +626,7 @@ mod tests {
#[test]
fn test_layout_unicode() {
let out = Layout::from_yaml_stream(PathBuf::from("tests/layout_key2.yaml"))
let out = Layout::from_file(PathBuf::from("tests/layout_key2.yaml"))
.unwrap()
.build()
.unwrap();
@ -620,7 +641,7 @@ mod tests {
#[test]
fn parsing_fallback() {
assert!(load_layout_from_resource(FALLBACK_LAYOUT_NAME)
assert!(Layout::from_resource(FALLBACK_LAYOUT_NAME)
.and_then(|layout| layout.build().map_err(LoadError::BadKeyMap))
.is_ok()
);