mirror of https://github.com/sharkdp/bat.git
107 lines
3.3 KiB
Rust
107 lines
3.3 KiB
Rust
// TODO: Re-enable generation of shell completion files (below) when clap 3 is out.
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// For more details, see https://github.com/sharkdp/bat/issues/372
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// For bat-as-a-library, no build script is required. The build script is for
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// the manpage and completions, which are only relevant to the bat application.
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#[cfg(not(feature = "application"))]
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fn main() {}
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#[cfg(feature = "application")]
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fn main() -> Result<(), Box<dyn std::error::Error>> {
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use std::collections::HashMap;
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use std::error::Error;
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use std::fs;
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use std::path::Path;
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// Read environment variables.
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let project_name = option_env!("PROJECT_NAME").unwrap_or("bat");
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let executable_name = option_env!("PROJECT_EXECUTABLE").unwrap_or(project_name);
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let executable_name_uppercase = executable_name.to_uppercase();
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static PROJECT_VERSION: &str = env!("CARGO_PKG_VERSION");
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/// Generates a file from a template.
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fn template(
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variables: &HashMap<&str, &str>,
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in_file: &str,
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out_file: impl AsRef<Path>,
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) -> Result<(), Box<dyn Error>> {
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let mut content = fs::read_to_string(in_file)?;
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for (variable_name, value) in variables {
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// Replace {{variable_name}} by the value
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let pattern = format!("{{{{{variable_name}}}}}", variable_name = variable_name);
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content = content.replace(&pattern, value);
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}
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fs::write(out_file, content)?;
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Ok(())
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}
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let mut variables = HashMap::new();
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variables.insert("PROJECT_NAME", project_name);
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variables.insert("PROJECT_EXECUTABLE", executable_name);
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variables.insert("PROJECT_EXECUTABLE_UPPERCASE", &executable_name_uppercase);
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variables.insert("PROJECT_VERSION", PROJECT_VERSION);
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let out_dir_env = std::env::var_os("OUT_DIR").expect("OUT_DIR to be set in build.rs");
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let out_dir = Path::new(&out_dir_env);
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fs::create_dir_all(out_dir.join("assets/manual")).unwrap();
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fs::create_dir_all(out_dir.join("assets/completions")).unwrap();
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template(
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&variables,
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"assets/manual/bat.1.in",
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out_dir.join("assets/manual/bat.1"),
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)?;
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template(
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&variables,
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"assets/completions/bat.bash.in",
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out_dir.join("assets/completions/bat.bash"),
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)?;
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template(
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&variables,
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"assets/completions/bat.fish.in",
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out_dir.join("assets/completions/bat.fish"),
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)?;
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template(
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&variables,
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"assets/completions/_bat.ps1.in",
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out_dir.join("assets/completions/_bat.ps1"),
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)?;
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template(
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&variables,
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"assets/completions/bat.zsh.in",
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out_dir.join("assets/completions/bat.zsh"),
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)?;
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Ok(())
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}
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// #[macro_use]
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// extern crate clap;
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// use clap::Shell;
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// use std::fs;
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// include!("src/clap_app.rs");
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// const BIN_NAME: &str = "bat";
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// fn main() {
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// let outdir = std::env::var_os("SHELL_COMPLETIONS_DIR").or(std::env::var_os("OUT_DIR"));
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// let outdir = match outdir {
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// None => return,
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// Some(outdir) => outdir,
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// };
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// fs::create_dir_all(&outdir).unwrap();
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// let mut app = build_app(true);
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// app.gen_completions(BIN_NAME, Shell::Bash, &outdir);
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// app.gen_completions(BIN_NAME, Shell::Fish, &outdir);
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// app.gen_completions(BIN_NAME, Shell::Zsh, &outdir);
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// app.gen_completions(BIN_NAME, Shell::PowerShell, &outdir);
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// }
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