1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
|
use crate::errors::*;
use log::{debug, trace};
use std::convert::Into;
use std::fs::{self, File};
use std::io::Write;
use std::path::{Component, Path, PathBuf};
/// Naively replaces any path separator with a forward-slash '/'
pub fn normalize_path(path: &str) -> String {
use std::path::is_separator;
path.chars()
.map(|ch| if is_separator(ch) { '/' } else { ch })
.collect::<String>()
}
/// Write the given data to a file, creating it first if necessary
pub fn write_file<P: AsRef<Path>>(build_dir: &Path, filename: P, content: &[u8]) -> Result<()> {
let path = build_dir.join(filename);
create_file(&path)?.write_all(content).map_err(Into::into)
}
/// Takes a path and returns a path containing just enough `../` to point to
/// the root of the given path.
///
/// This is mostly interesting for a relative path to point back to the
/// directory from where the path starts.
///
/// ```rust
/// # use std::path::Path;
/// # use mdbook::utils::fs::path_to_root;
/// let path = Path::new("some/relative/path");
/// assert_eq!(path_to_root(path), "../../");
/// ```
///
/// **note:** it's not very fool-proof, if you find a situation where
/// it doesn't return the correct path.
/// Consider [submitting a new issue](https://github.com/rust-lang/mdBook/issues)
/// or a [pull-request](https://github.com/rust-lang/mdBook/pulls) to improve it.
pub fn path_to_root<P: Into<PathBuf>>(path: P) -> String {
// Remove filename and add "../" for every directory
path.into()
.parent()
.expect("")
.components()
.fold(String::new(), |mut s, c| {
match c {
Component::Normal(_) => s.push_str("../"),
_ => {
debug!("Other path component... {:?}", c);
}
}
s
})
}
/// This function creates a file and returns it. But before creating the file
/// it checks every directory in the path to see if it exists,
/// and if it does not it will be created.
pub fn create_file(path: &Path) -> Result<File> {
debug!("Creating {}", path.display());
// Construct path
if let Some(p) = path.parent() {
trace!("Parent directory is: {:?}", p);
fs::create_dir_all(p)?;
}
File::create(path).map_err(Into::into)
}
/// Removes all the content of a directory but not the directory itself
pub fn remove_dir_content(dir: &Path) -> Result<()> {
for item in fs::read_dir(dir)? {
if let Ok(item) = item {
let item = item.path();
if item.is_dir() {
fs::remove_dir_all(item)?;
} else {
fs::remove_file(item)?;
}
}
}
Ok(())
}
/// Copies all files of a directory to another one except the files
/// with the extensions given in the `ext_blacklist` array
pub fn copy_files_except_ext(
from: &Path,
to: &Path,
recursive: bool,
avoid_dir: Option<&PathBuf>,
ext_blacklist: &[&str],
) -> Result<()> {
debug!(
"Copying all files from {} to {} (blacklist: {:?}), avoiding {:?}",
from.display(),
to.display(),
ext_blacklist,
avoid_dir
);
// Check that from and to are different
if from == to {
return Ok(());
}
for entry in fs::read_dir(from)? {
let entry = entry?;
let metadata = entry
.path()
.metadata()
.with_context(|| format!("Failed to read {:?}", entry.path()))?;
// If the entry is a dir and the recursive option is enabled, call itself
if metadata.is_dir() && recursive {
if entry.path() == to.to_path_buf() {
continue;
}
if let Some(avoid) = avoid_dir {
if entry.path() == *avoid {
continue;
}
}
// check if output dir already exists
if !to.join(entry.file_name()).exists() {
fs::create_dir(&to.join(entry.file_name()))?;
}
copy_files_except_ext(
&from.join(entry.file_name()),
&to.join(entry.file_name()),
true,
avoid_dir,
ext_blacklist,
)?;
} else if metadata.is_file() {
// Check if it is in the blacklist
if let Some(ext) = entry.path().extension() {
if ext_blacklist.contains(&ext.to_str().unwrap()) {
continue;
}
}
debug!(
"creating path for file: {:?}",
&to.join(
entry
.path()
.file_name()
.expect("a file should have a file name...")
)
);
debug!(
"Copying {:?} to {:?}",
entry.path(),
&to.join(
entry
.path()
.file_name()
.expect("a file should have a file name...")
)
);
fs::copy(
entry.path(),
&to.join(
entry
.path()
.file_name()
.expect("a file should have a file name..."),
),
)?;
}
}
Ok(())
}
pub fn get_404_output_file(input_404: &Option<String>) -> String {
input_404
.as_ref()
.unwrap_or(&"404.md".to_string())
.replace(".md", ".html")
}
#[cfg(test)]
mod tests {
use super::copy_files_except_ext;
use std::{fs, io::Result, path::Path};
#[cfg(target_os = "windows")]
fn symlink<P: AsRef<Path>, Q: AsRef<Path>>(src: P, dst: Q) -> Result<()> {
std::os::windows::fs::symlink_file(src, dst)
}
#[cfg(not(target_os = "windows"))]
fn symlink<P: AsRef<Path>, Q: AsRef<Path>>(src: P, dst: Q) -> Result<()> {
std::os::unix::fs::symlink(src, dst)
}
#[test]
fn copy_files_except_ext_test() {
let tmp = match tempfile::TempDir::new() {
Ok(t) => t,
Err(e) => panic!("Could not create a temp dir: {}", e),
};
// Create a couple of files
if let Err(err) = fs::File::create(tmp.path().join("file.txt")) {
panic!("Could not create file.txt: {}", err);
}
if let Err(err) = fs::File::create(tmp.path().join("file.md")) {
panic!("Could not create file.md: {}", err);
}
if let Err(err) = fs::File::create(tmp.path().join("file.png")) {
panic!("Could not create file.png: {}", err);
}
if let Err(err) = fs::create_dir(tmp.path().join("sub_dir")) {
panic!("Could not create sub_dir: {}", err);
}
if let Err(err) = fs::File::create(tmp.path().join("sub_dir/file.png")) {
panic!("Could not create sub_dir/file.png: {}", err);
}
if let Err(err) = fs::create_dir(tmp.path().join("sub_dir_exists")) {
panic!("Could not create sub_dir_exists: {}", err);
}
if let Err(err) = fs::File::create(tmp.path().join("sub_dir_exists/file.txt")) {
panic!("Could not create sub_dir_exists/file.txt: {}", err);
}
if let Err(err) = symlink(tmp.path().join("file.png"), tmp.path().join("symlink.png")) {
panic!("Could not symlink file.png: {}", err);
}
// Create output dir
if let Err(err) = fs::create_dir(tmp.path().join("output")) {
panic!("Could not create output: {}", err);
}
if let Err(err) = fs::create_dir(tmp.path().join("output/sub_dir_exists")) {
panic!("Could not create output/sub_dir_exists: {}", err);
}
if let Err(e) =
copy_files_except_ext(tmp.path(), &tmp.path().join("output"), true, None, &["md"])
{
panic!("Error while executing the function:\n{:?}", e);
}
// Check if the correct files where created
if !tmp.path().join("output/file.txt").exists() {
panic!("output/file.txt should exist")
}
if tmp.path().join("output/file.md").exists() {
panic!("output/file.md should not exist")
}
if !tmp.path().join("output/file.png").exists() {
panic!("output/file.png should exist")
}
if !tmp.path().join("output/sub_dir/file.png").exists() {
panic!("output/sub_dir/file.png should exist")
}
if !tmp.path().join("output/sub_dir_exists/file.txt").exists() {
panic!("output/sub_dir/file.png should exist")
}
if !tmp.path().join("output/symlink.png").exists() {
panic!("output/symlink.png should exist")
}
}
}
|
