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Use BAT_PAGER and PAGER environment variables, closes #158

This commit is contained in:
sharkdp 2018-07-23 22:49:25 +02:00 committed by David Peter
parent 268577c6f9
commit d179693d1d
1 changed files with 19 additions and 7 deletions
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26
src/output.rs
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@ -1,5 +1,6 @@
use app::PagingMode;
use errors::*;
use std::env;
use std::io::{self, Write};
use std::process::{Child, Command, Stdio};
@ -20,13 +21,24 @@ impl OutputType {
/// Try to launch the pager. Fall back to stdout in case of errors.
fn try_pager(quit_if_one_screen: bool) -> Self {
let mut args = vec!["--RAW-CONTROL-CHARS", "--no-init"];
if quit_if_one_screen {
args.push("--quit-if-one-screen");
}
Command::new("less")
.args(&args)
.env("LESSCHARSET", "UTF-8")
let pager = env::var("BAT_PAGER")
.or_else(|_| env::var("PAGER"))
.unwrap_or(String::from("less"));
let mut process = if pager == "less" {
let mut args = vec!["--RAW-CONTROL-CHARS", "--no-init"];
if quit_if_one_screen {
args.push("--quit-if-one-screen");
}
let mut p = Command::new("less");
p.args(&args).env("LESSCHARSET", "UTF-8");
p
} else {
Command::new(pager)
};
process
.stdin(Stdio::piped())
.spawn()
.map(OutputType::Pager)