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Code Issues Releases Wiki Activity

Better error handling

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This commit is contained in:
sharkdp
2018-05-16 22:23:53 +02:00
committed by David Peter
parent 9aa97b6c22
commit c826c2a438
1 changed files with 14 additions and 29 deletions
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43
src/assets.rs
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@@ -26,16 +26,8 @@ impl HighlightingAssets {
let source_dir = dir.unwrap_or_else(|| PROJECT_DIRS.config_dir());
let theme_dir = source_dir.join("themes");
let theme_set = ThemeSet::load_from_folder(&theme_dir).map_err(|_| {
io::Error::new(
io::ErrorKind::Other,
format!(
"Could not load themes from '{}'",
theme_dir.to_string_lossy()
),
)
})?;
let theme_set =
ThemeSet::load_from_folder(&theme_dir).chain_err(|| "Could not load themes from '{}'")?;
let mut syntax_set = SyntaxSet::new();
let syntax_dir = source_dir.join("syntaxes");
if !syntax_dir.exists() {
@@ -61,9 +53,8 @@ impl HighlightingAssets {
syntax_set_path().to_string_lossy()
)
})?;
let mut syntax_set: SyntaxSet = from_reader(syntax_set_file).map_err(|_| {
io::Error::new(io::ErrorKind::Other, "Could not parse cached syntax set")
})?;
let mut syntax_set: SyntaxSet =
from_reader(syntax_set_file).chain_err(|| "Could not parse cached syntax set")?;
syntax_set.link_syntaxes();
let theme_set_file = File::open(&theme_set_path).chain_err(|| {
@@ -72,8 +63,8 @@ impl HighlightingAssets {
theme_set_path.to_string_lossy()
)
})?;
let theme_set: ThemeSet = from_reader(theme_set_file)
.map_err(|_| io::Error::new(io::ErrorKind::Other, "Could not parse cached theme set"))?;
let theme_set: ThemeSet =
from_reader(theme_set_file).chain_err(|| "Could not parse cached theme set")?;
Ok(HighlightingAssets {
syntax_set,
@@ -102,13 +93,10 @@ impl HighlightingAssets {
"Writing theme set to {} ... ",
theme_set_path.to_string_lossy()
);
dump_to_file(&self.theme_set, &theme_set_path).map_err(|_| {
io::Error::new(
io::ErrorKind::Other,
format!(
"Could not save theme set to {}",
theme_set_path.to_string_lossy()
),
dump_to_file(&self.theme_set, &theme_set_path).chain_err(|| {
format!(
"Could not save theme set to {}",
theme_set_path.to_string_lossy()
)
})?;
println!("okay");
@@ -117,13 +105,10 @@ impl HighlightingAssets {
"Writing syntax set to {} ... ",
syntax_set_path.to_string_lossy()
);
dump_to_file(&self.syntax_set, &syntax_set_path).map_err(|_| {
io::Error::new(
io::ErrorKind::Other,
format!(
"Could not save syntax set to {}",
syntax_set_path.to_string_lossy()
),
dump_to_file(&self.syntax_set, &syntax_set_path).chain_err(|| {
format!(
"Could not save syntax set to {}",
syntax_set_path.to_string_lossy()
)
})?;
println!("okay");