1 use std::fs::create_dir_all;
2 use std::path::{Path, PathBuf};
3
4 use glob::glob;
5 use sass_rs::{compile_file, Options, OutputStyle};
6
7 use errors::{bail, Result};
8 use utils::fs::{create_file, ensure_directory_exists};
9
compile_sass(base_path: &Path, output_path: &Path) -> Result<()>10 pub fn compile_sass(base_path: &Path, output_path: &Path) -> Result<()> {
11 ensure_directory_exists(output_path)?;
12
13 let sass_path = {
14 let mut sass_path = PathBuf::from(base_path);
15 sass_path.push("sass");
16 sass_path
17 };
18
19 let mut options = Options { output_style: OutputStyle::Compressed, ..Default::default() };
20 let mut compiled_paths = compile_sass_glob(&sass_path, output_path, "scss", &options)?;
21
22 options.indented_syntax = true;
23 compiled_paths.extend(compile_sass_glob(&sass_path, output_path, "sass", &options)?);
24
25 compiled_paths.sort();
26 for window in compiled_paths.windows(2) {
27 if window[0].1 == window[1].1 {
28 bail!(
29 "SASS path conflict: \"{}\" and \"{}\" both compile to \"{}\"",
30 window[0].0.display(),
31 window[1].0.display(),
32 window[0].1.display(),
33 );
34 }
35 }
36
37 Ok(())
38 }
39
compile_sass_glob( sass_path: &Path, output_path: &Path, extension: &str, options: &Options, ) -> Result<Vec<(PathBuf, PathBuf)>>40 fn compile_sass_glob(
41 sass_path: &Path,
42 output_path: &Path,
43 extension: &str,
44 options: &Options,
45 ) -> Result<Vec<(PathBuf, PathBuf)>> {
46 let files = get_non_partial_scss(sass_path, extension);
47
48 let mut compiled_paths = Vec::new();
49 for file in files {
50 let css = compile_file(&file, options.clone())?;
51
52 let path_inside_sass = file.strip_prefix(&sass_path).unwrap();
53 let parent_inside_sass = path_inside_sass.parent();
54 let css_output_path = output_path.join(path_inside_sass).with_extension("css");
55
56 if parent_inside_sass.is_some() {
57 create_dir_all(&css_output_path.parent().unwrap())?;
58 }
59
60 create_file(&css_output_path, &css)?;
61 compiled_paths.push((path_inside_sass.to_owned(), css_output_path));
62 }
63
64 Ok(compiled_paths)
65 }
66
get_non_partial_scss(sass_path: &Path, extension: &str) -> Vec<PathBuf>67 fn get_non_partial_scss(sass_path: &Path, extension: &str) -> Vec<PathBuf> {
68 let glob_string = format!("{}/**/*.{}", sass_path.display(), extension);
69 glob(&glob_string)
70 .expect("Invalid glob for sass")
71 .filter_map(|e| e.ok())
72 .filter(|entry| {
73 !entry
74 .as_path()
75 .iter()
76 .last()
77 .map(|c| c.to_string_lossy().starts_with('_'))
78 .unwrap_or(true)
79 })
80 .collect::<Vec<_>>()
81 }
82
83 #[test]
test_get_non_partial_scss()84 fn test_get_non_partial_scss() {
85 use std::env;
86
87 let mut path = env::current_dir().unwrap().parent().unwrap().parent().unwrap().to_path_buf();
88 path.push("test_site");
89 path.push("sass");
90
91 let result = get_non_partial_scss(&path, "scss");
92
93 assert!(!result.is_empty());
94 assert!(result.iter().filter_map(|path| path.file_name()).any(|file| file == "scss.scss"))
95 }
96 #[test]
test_get_non_partial_scss_underscores()97 fn test_get_non_partial_scss_underscores() {
98 use std::env;
99
100 let mut path = env::current_dir().unwrap().parent().unwrap().parent().unwrap().to_path_buf();
101 path.push("test_site");
102 path.push("_dir_with_underscores");
103 path.push("..");
104 path.push("sass");
105
106 let result = get_non_partial_scss(&path, "scss");
107
108 assert!(!result.is_empty());
109 assert!(result.iter().filter_map(|path| path.file_name()).any(|file| file == "scss.scss"))
110 }
111