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Let's bubble up errors instead of panicking and also not use `exit(...)` because it does not call destructors which might give issues.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,70 +1,81 @@ | ||
| extern crate flate2; | ||
| use eyre::{ContextCompat, Result}; | ||
| use flate2::{write::GzEncoder, Compression}; | ||
| use std::{ | ||
| fs::{read_dir, File, OpenOptions}, | ||
| io::{copy, BufReader, ErrorKind}, | ||
| path::Path, | ||
| process::{exit, Command, Stdio}, | ||
| process::{Command, Stdio}, | ||
| }; | ||
|
|
||
| fn main() { | ||
| fn main() -> Result<()> { | ||
| if let Err(e) = Command::new("scdoc") | ||
| .stdin(Stdio::null()) | ||
| .stdout(Stdio::null()) | ||
| .stderr(Stdio::null()) | ||
| .spawn() | ||
| { | ||
| if let ErrorKind::NotFound = e.kind() { | ||
| exit(0); | ||
| return Ok(()); | ||
| } | ||
| } | ||
|
|
||
| // We just append "out" so it's easy to find all the scdoc output later in line 38. | ||
| let man_pages: Vec<(String, String)> = read_and_replace_by_ext("./docs", ".scd", ".out"); | ||
| let man_pages: Vec<(String, String)> = read_and_replace_by_ext("./docs", ".scd", ".out")?; | ||
| for man_page in man_pages { | ||
| let output = OpenOptions::new() | ||
| .write(true) | ||
| .create(true) | ||
| .open(Path::new(&man_page.1)) | ||
| .unwrap(); | ||
| .open(Path::new(&man_page.1))?; | ||
| _ = Command::new("scdoc") | ||
| .stdin(Stdio::from(File::open(man_page.0).unwrap())) | ||
| .stdin(Stdio::from(File::open(man_page.0)?)) | ||
| .stdout(output) | ||
| .spawn(); | ||
| } | ||
|
|
||
| // Gzipping the man pages | ||
| let scdoc_output_files: Vec<(String, String)> = | ||
| read_and_replace_by_ext("./docs", ".out", ".gz"); | ||
| read_and_replace_by_ext("./docs", ".out", ".gz")?; | ||
| for scdoc_output in scdoc_output_files { | ||
| let mut input = BufReader::new(File::open(scdoc_output.0).unwrap()); | ||
| let mut input = BufReader::new(File::open(scdoc_output.0)?); | ||
| let output = OpenOptions::new() | ||
| .write(true) | ||
| .create(true) | ||
| .open(Path::new(&scdoc_output.1)) | ||
| .unwrap(); | ||
| .open(Path::new(&scdoc_output.1))?; | ||
| let mut encoder = GzEncoder::new(output, Compression::default()); | ||
| copy(&mut input, &mut encoder).unwrap(); | ||
| encoder.finish().unwrap(); | ||
| copy(&mut input, &mut encoder)?; | ||
| encoder.finish()?; | ||
| } | ||
|
|
||
| Ok(()) | ||
| } | ||
|
|
||
| fn read_and_replace_by_ext(path: &str, search: &str, replace: &str) -> Vec<(String, String)> { | ||
| fn read_and_replace_by_ext( | ||
| path: &str, | ||
| search: &str, | ||
| replace: &str, | ||
| ) -> Result<Vec<(String, String)>> { | ||
| let mut files: Vec<(String, String)> = Vec::new(); | ||
| for path in read_dir(path).unwrap() { | ||
| let path = path.unwrap(); | ||
| if path.file_type().unwrap().is_dir() { | ||
| for path in read_dir(path)? { | ||
| let path = path?; | ||
| if path.file_type()?.is_dir() { | ||
| continue; | ||
| } | ||
|
|
||
| if let Some(file_name) = path.path().to_str() { | ||
| if *path.path().extension().unwrap().to_str().unwrap() != search[1..] { | ||
| if *path | ||
| .path() | ||
| .extension() | ||
| .wrap_err_with(|| format!("no extension found for {}", path.path().display()))? | ||
| .to_string_lossy() | ||
| != search[1..] | ||
| { | ||
| continue; | ||
| } | ||
|
|
||
| let file = file_name.replace(search, replace); | ||
| files.push((file_name.to_string(), file)); | ||
| } | ||
| } | ||
| files | ||
| Ok(files) | ||
| } |
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