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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,148 @@ | ||
| use std::collections::HashSet; | ||
| use std::io::{BufRead, BufReader, Write, BufWriter}; | ||
| use std::fs::{self, File, remove_file}; | ||
| use std::os::unix::fs::PermissionsExt; | ||
| use std::path::Path; | ||
|
|
||
| use capturing_glob::{self, glob_with, MatchOptions}; | ||
| use regex::Regex; | ||
| use serde_regex; | ||
| use quire::validate as V; | ||
|
|
||
| use apply::{Task, Error, Action}; | ||
| use apply::expand::Variables; | ||
|
|
||
| #[derive(Deserialize, Debug, Clone)] | ||
| pub struct SplitText { | ||
| #[serde(with="serde_regex")] | ||
| section: Regex, | ||
| #[serde(with="serde_regex")] | ||
| validate: Regex, | ||
| src: String, | ||
| dest: String, | ||
| mode: Option<u32>, | ||
| } | ||
|
|
||
| impl SplitText { | ||
| pub fn config() -> V::Structure<'static> { | ||
| V::Structure::new() | ||
| .member("section", V::Scalar::new()) | ||
| .member("validate", V::Scalar::new()) | ||
| .member("src", V::Scalar::new().default("{{ tmp_file }}")) | ||
| .member("dest", V::Scalar::new()) | ||
| .member("mode", V::Numeric::new().optional()) | ||
| } | ||
| } | ||
|
|
||
| fn open_file(dest: &str, name: &str) -> Result<File, Error> { | ||
| let fpath = capturing_glob::Pattern::new(dest) | ||
| .map_err(|_| Error::InvalidArgument( | ||
| "Split test destination is invalid pattern", | ||
| dest.to_string()))? | ||
| .substitute(&[name]) | ||
| .map_err(|_| Error::InvalidArgument( | ||
| "Split test destination is invalid pattern", | ||
| dest.to_string()))?; | ||
| let fname = Path::new(&fpath).file_name() | ||
| .ok_or_else(|| Error::InvalidArgument( | ||
| "SplitText destination must be filename pattern not a directory", | ||
| dest.to_string()))?; | ||
| let tmpdest = Path::new(&fpath).with_file_name( | ||
| format!(".tmp.{}", fname.to_str().unwrap())); | ||
| return File::create(tmpdest).map_err(Error::IoError); | ||
| } | ||
|
|
||
| fn commit_file(dest: &str, name: &str, mode: Option<u32>) -> Result<(), Error> | ||
| { | ||
| let fpath = capturing_glob::Pattern::new(dest) | ||
| .map_err(|_| Error::InvalidArgument( | ||
| "Split test destination is invalid pattern", | ||
| dest.to_string()))? | ||
| .substitute(&[name]) | ||
| .map_err(|_| Error::InvalidArgument( | ||
| "Split test destination is invalid pattern", | ||
| dest.to_string()))?; | ||
| let fname = Path::new(&fpath).file_name() | ||
| .ok_or_else(|| Error::InvalidArgument( | ||
| "SplitText destination must be filename pattern not a directory", | ||
| dest.to_string()))?; | ||
| let tmpdest = Path::new(&fpath).with_file_name( | ||
| format!(".tmp.{}", fname.to_str().unwrap())); | ||
| if let Some(mode) = mode { | ||
| fs::set_permissions(&tmpdest, fs::Permissions::from_mode(mode)) | ||
| .map_err(|e| Error::IoError(e))?; | ||
| } | ||
| fs::rename(&tmpdest, &fpath) | ||
| .map_err(|e| Error::IoError(e))?; | ||
| Ok(()) | ||
| } | ||
|
|
||
|
|
||
| impl Action for SplitText { | ||
| fn execute(&self, mut task: Task, variables: Variables) | ||
| -> Result<(), Error> | ||
| { | ||
| let src = variables.expand(&self.src); | ||
| let dest = variables.expand(&self.dest); | ||
| task.log(format_args!("SplitText {{ src: {:?}, dest: {:?} }}\n", | ||
| &self.src, &self.dest)); | ||
|
|
||
| if !task.dry_run { | ||
| let src = BufReader::new(File::open(src).map_err(Error::IoError)?); | ||
| let mut visited = HashSet::new(); | ||
| let mut file = None; | ||
| let mut name = None::<String>; | ||
| for (num, line) in src.lines().enumerate() { | ||
| let line = line.map_err(Error::IoError)?; | ||
| if file.is_none() { | ||
| if !line.trim().is_empty() { | ||
| return Err(Error::FormatError(format!( | ||
| "Error splitting file: \ | ||
| Non-empty line {} before title", num))); | ||
| } | ||
| } else if let Some(capt) = self.section.captures(&line) { | ||
| let sect = capt.get(1).map(|x| x.as_str()).unwrap_or(""); | ||
| if !self.validate.is_match(sect) { | ||
| return Err(Error::FormatError(format!( | ||
| "invalid section {:?} on line {}", capt, num))); | ||
| } | ||
|
|
||
| if let Some(cur_name) = name.take() { | ||
| commit_file(&dest, &cur_name, self.mode)?; | ||
| } | ||
| file = Some(BufWriter::new(open_file(&dest, sect)?)); | ||
| name = Some(sect.to_string()); | ||
| visited.insert(sect.to_string()); | ||
| } else { | ||
| writeln!(&mut file.as_mut().unwrap(), "{}", line) | ||
| .map_err(|e| Error::IoError(e))?; | ||
| } | ||
| } | ||
| if let Some(cur_name) = name.take() { | ||
| commit_file(&dest, &cur_name, self.mode)?; | ||
| } | ||
| let items = glob_with(&dest, &MatchOptions { | ||
| case_sensitive: true, | ||
| require_literal_separator: true, | ||
| require_literal_leading_dot: true, | ||
| }).map_err(|_| Error::InvalidArgument( | ||
| "Split test destination is invalid pattern", | ||
| dest.to_string()))?; | ||
| for entry in items { | ||
| let entry = entry.map_err(|e| { | ||
| Error::Other(format!("{:?}: {}", | ||
| e.path().to_path_buf(), e.error())) | ||
| })?; | ||
| let name = entry.group(1) | ||
| .and_then(|x| x.to_str()).unwrap_or(""); | ||
| if !visited.contains(name) { | ||
| remove_file(entry.path())?; | ||
| } | ||
| } | ||
| Ok(()) | ||
| } else { | ||
| Ok(()) | ||
| } | ||
| } | ||
|
|
||
| } |
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