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build.rs: use man binary if mandoc missing in cli-docs

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This commit is contained in:
Manos Pitsidianakis 2020-02-09 19:42:37 +02:00
parent c678b16711
commit 34331232af
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GPG Key ID: 73627C2F690DF710
1 changed files with 4 additions and 3 deletions
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7
build.rs
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@ -30,16 +30,15 @@ fn main() {
use std::process::Command;
let out_dir = env::var("OUT_DIR").unwrap();
let mut out_dir_path = Path::new(&out_dir).to_path_buf();
out_dir_path.push("meli.txt");
// Note that there are a number of downsides to this approach, the comments
// below detail how to improve the portability of these commands.
let output = Command::new("mandoc")
.args(MANDOC_OPTS)
.arg("meli.1")
.output()
.or_else(|_| Command::new("man").arg("-l").arg("meli.1").output())
.unwrap();
out_dir_path.push("meli.txt");
let mut file = File::create(&out_dir_path).unwrap();
file.write_all(&output.stdout).unwrap();
out_dir_path.pop();
@ -49,6 +48,7 @@ fn main() {
.args(MANDOC_OPTS)
.arg("meli.conf.5")
.output()
.or_else(|_| Command::new("man").arg("-l").arg("meli.conf.5").output())
.unwrap();
let mut file = File::create(&out_dir_path).unwrap();
file.write_all(&output.stdout).unwrap();
@ -59,6 +59,7 @@ fn main() {
.args(MANDOC_OPTS)
.arg("meli-themes.5")
.output()
.or_else(|_| Command::new("man").arg("-l").arg("meli-themes.5").output())
.unwrap();
let mut file = File::create(&out_dir_path).unwrap();
file.write_all(&output.stdout).unwrap();