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Omit launching of pager if NO file exists

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closes #387
This commit is contained in:
sharkdp 2018-12-14 21:44:48 +01:00 committed by David Peter
parent d2d29180a7
commit 397def1320
1 changed files with 18 additions and 2 deletions
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20
src/controller.rs
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@ -1,6 +1,7 @@
use std::io::{self, Write};
use std::path::Path;
use app::Config;
use app::{Config, PagingMode};
use assets::HighlightingAssets;
use errors::*;
use inputfile::{InputFile, InputFileReader};
@ -19,7 +20,22 @@ impl<'b> Controller<'b> {
}
pub fn run(&self) -> Result<bool> {
let mut output_type = OutputType::from_mode(self.config.paging_mode, self.config.pager)?;
// Do not launch the pager if NONE of the input files exist
let mut paging_mode = self.config.paging_mode;
if self.config.paging_mode != PagingMode::Never {
let call_pager = self.config.files.iter().any(|file| {
if let InputFile::Ordinary(path) = file {
return Path::new(path).exists();
} else {
return true;
}
});
if !call_pager {
paging_mode = PagingMode::Never;
}
}
let mut output_type = OutputType::from_mode(paging_mode, self.config.pager)?;
let writer = output_type.handle()?;
let mut no_errors: bool = true;