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Strip dependencies of bat-as-a-library

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This commit is contained in:
David Tolnay
2020-03-30 09:43:13 -07:00
committed by David Peter
parent e7e1967bb0
commit 570805bc98
13 changed files with 100 additions and 77 deletions
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58
build.rs
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@@ -1,38 +1,42 @@
// TODO: Re-enable generation of shell completion files (below) when clap 3 is out.
// For more details, see https://github.com/sharkdp/bat/issues/372
#[macro_use]
extern crate lazy_static;
extern crate liquid;
// For bat-as-a-library, no build script is required. The build script is for
// the manpage and completions, which are only relevant to the bat application.
#[cfg(not(feature = "application"))]
fn main() {}
use std::error::Error;
use std::fs;
use std::path::Path;
#[cfg(feature = "application")]
fn main() -> Result<(), Box<dyn std::error::Error>> {
use std::error::Error;
use std::fs;
use std::path::Path;
// Read environment variables.
lazy_static! {
pub static ref PROJECT_NAME: &'static str = option_env!("PROJECT_NAME").unwrap_or("bat");
pub static ref PROJECT_VERSION: &'static str = option_env!("CARGO_PKG_VERSION").unwrap();
pub static ref EXECUTABLE_NAME: &'static str = option_env!("PROJECT_EXECUTABLE")
.or(option_env!("PROJECT_NAME"))
.unwrap_or("bat");
}
use lazy_static::lazy_static;
/// Generates a file from a liquid template.
fn template(
variables: &liquid::Object,
in_file: &str,
out_file: impl AsRef<Path>,
) -> Result<(), Box<dyn Error>> {
let template = liquid::ParserBuilder::with_stdlib()
.build()?
.parse(&fs::read_to_string(in_file)?)?;
// Read environment variables.
lazy_static! {
static ref PROJECT_NAME: &'static str = option_env!("PROJECT_NAME").unwrap_or("bat");
static ref PROJECT_VERSION: &'static str = option_env!("CARGO_PKG_VERSION").unwrap();
static ref EXECUTABLE_NAME: &'static str = option_env!("PROJECT_EXECUTABLE")
.or(option_env!("PROJECT_NAME"))
.unwrap_or("bat");
}
fs::write(out_file, template.render(variables)?)?;
Ok(())
}
/// Generates a file from a liquid template.
fn template(
variables: &liquid::Object,
in_file: &str,
out_file: impl AsRef<Path>,
) -> Result<(), Box<dyn Error>> {
let template = liquid::ParserBuilder::with_stdlib()
.build()?
.parse(&fs::read_to_string(in_file)?)?;
fs::write(out_file, template.render(variables)?)?;
Ok(())
}
fn main() -> Result<(), Box<dyn Error>> {
let variables = liquid::object!({
"PROJECT_NAME": PROJECT_NAME.to_owned(),
"PROJECT_EXECUTABLE": EXECUTABLE_NAME.to_owned(),