Merge pull request #298 from ms2300/bat_style

#208 Added BAT_STYLE env variable functionality
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David Peter 2018-09-12 21:48:34 +02:00 committed by GitHub
commit ea369ee17f
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2 changed files with 18 additions and 4 deletions

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@ -1,6 +1,7 @@
use std::collections::HashSet;
use std::env;
use std::path::Path;
use std::str::FromStr;
use atty::{self, Stream};
@ -178,14 +179,15 @@ impl App {
.takes_value(true)
.possible_values(&[
"auto", "full", "plain", "changes", "header", "grid", "numbers",
]).default_value("auto")
])
.help("Comma-separated list of style elements to display.")
.long_help(
"Configure which elements (line numbers, file headers, grid \
borders, Git modifications, ..) to display in addition to the \
file contents. The argument is a comma-separated list of \
components to display (e.g. 'numbers,changes,grid') or a \
pre-defined style ('full')",
pre-defined style ('full'). To set a default theme, export the \
BAT_STYLE environment variable (e.g.: export BAT_STYLE=\"numbers\").",
),
).arg(
Arg::with_name("plain")
@ -462,7 +464,18 @@ impl App {
} else if matches.is_present("plain") {
[OutputComponent::Plain].iter().cloned().collect()
} else {
values_t!(matches.values_of("style"), OutputComponent)?
let env_style_components: Option<Vec<OutputComponent>> =
transpose(env::var("BAT_STYLE").ok().map(|style_str| {
style_str
.split(",")
.map(|x| OutputComponent::from_str(&x))
.collect::<Result<Vec<OutputComponent>>>()
}))?;
values_t!(matches.values_of("style"), OutputComponent)
.ok()
.or(env_style_components)
.unwrap_or(vec![OutputComponent::Full])
.into_iter()
.map(|style| style.components(self.interactive_output))
.fold(HashSet::new(), |mut acc, components| {

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@ -54,7 +54,8 @@ impl FromStr for OutputComponent {
"header" => Ok(OutputComponent::Header),
"numbers" => Ok(OutputComponent::Numbers),
"full" => Ok(OutputComponent::Full),
"plain" | _ => Ok(OutputComponent::Plain),
"plain" => Ok(OutputComponent::Plain),
_ => Err(format!("Unknown style '{}'", s).into()),
}
}
}