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cli: set LESSCHARSET=utf-8 for our default less -FRX pager

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Without a pager configured (in `ui.pager` or `$PAGER`), running
`LC_CTYPE=foo jj log` would replace the Unicode characters in our
(Sapling's) "curved" graph style by escapes, like this:

```
@  1d4ae2372dd2 martinvonz@google.com 2023-02-11 14:56:00.000 -08:00 a8eac1f9efe8
<E2><94><82>  (no description set)
```

This fixes that by including the `LESSCHARSET=utf-8` environment
variable in our default `ui.pager` value.
This commit is contained in:
Martin von Zweigbergk 2023-02-11 14:44:17 -08:00 committed by Martin von Zweigbergk
parent 170de4749f
commit aefd0fe69e
1 changed files with 7 additions and 2 deletions
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9
src/ui.rs
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@ -18,8 +18,9 @@ use std::str::FromStr;
use std::{fmt, io, mem};
use crossterm::tty::IsTty;
use maplit::hashmap;
use crate::config::CommandNameAndArgs;
use crate::config::{CommandNameAndArgs, NonEmptyCommandArgsVec};
use crate::formatter::{Formatter, FormatterFactory, LabeledWriter};
pub struct Ui {
@ -103,7 +104,11 @@ impl Default for PaginationChoice {
fn pager_setting(config: &config::Config) -> CommandNameAndArgs {
config
.get("ui.pager")
.unwrap_or_else(|_| "less -FRX".into())
.unwrap_or_else(|_| CommandNameAndArgs::Structured {
command: NonEmptyCommandArgsVec::try_from(vec!["less".to_string(), "-FRX".to_string()])
.unwrap(),
env: hashmap! { "LESSCHARSET".to_string() => "utf-8".to_string() },
})
}
impl Ui {