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use std::io::Write;
use failure::ResultExt;
use crate::Result;
use crate::util::*;
const TEMPLATE: &'static str = include_str!("../install-template.sh");
actor! {
#[derive(Debug)]
pub struct Scripter {
/// The name of the product, for display
product_name: String = "Product",
/// The directory under lib/ where the manifest lives
rel_manifest_dir: String = "manifestlib",
/// The string to print after successful installation
success_message: String = "Installed.",
/// Places to look for legacy manifests to uninstall
legacy_manifest_dirs: String = "",
/// The name of the output script
output_script: String = "install.sh",
}
}
impl Scripter {
/// Generates the actual installer script
pub fn run(self) -> Result<()> {
// Replace dashes in the success message with spaces (our arg handling botches spaces)
// TODO: still needed? Kept for compatibility for now.
let product_name = self.product_name.replace('-', " ");
// Replace dashes in the success message with spaces (our arg handling botches spaces)
// TODO: still needed? Kept for compatibility for now.
let success_message = self.success_message.replace('-', " ");
let script = TEMPLATE
.replace("%%TEMPLATE_PRODUCT_NAME%%", &sh_quote(&product_name))
.replace("%%TEMPLATE_REL_MANIFEST_DIR%%", &self.rel_manifest_dir)
.replace("%%TEMPLATE_SUCCESS_MESSAGE%%", &sh_quote(&success_message))
.replace(
"%%TEMPLATE_LEGACY_MANIFEST_DIRS%%",
&sh_quote(&self.legacy_manifest_dirs),
)
.replace(
"%%TEMPLATE_RUST_INSTALLER_VERSION%%",
&sh_quote(&crate::RUST_INSTALLER_VERSION),
);
create_new_executable(&self.output_script)?
.write_all(script.as_ref())
.with_context(|_| format!("failed to write output script '{}'", self.output_script))?;
Ok(())
}
}
fn sh_quote<T: ToString>(s: &T) -> String {
// We'll single-quote the whole thing, so first replace single-quotes with
// '"'"' (leave quoting, double-quote one `'`, re-enter single-quoting)
format!("'{}'", s.to_string().replace('\'', r#"'"'"'"#))
}
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