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
|
use std::collections::HashMap;
use std::ffi::OsStr;
use std::fmt::Debug;
use std::fs;
use std::path::Path;
use std::process::{Command, ExitStatus, Output};
fn get_command_inner(
input: &[&dyn AsRef<OsStr>],
cwd: Option<&Path>,
env: Option<&HashMap<String, String>>,
) -> Command {
let (cmd, args) = match input {
[] => panic!("empty command"),
[cmd, args @ ..] => (cmd, args),
};
let mut command = Command::new(cmd);
command.args(args);
if let Some(cwd) = cwd {
command.current_dir(cwd);
}
if let Some(env) = env {
command.envs(env.iter().map(|(k, v)| (k.as_str(), v.as_str())));
}
command
}
fn check_exit_status(
input: &[&dyn AsRef<OsStr>],
cwd: Option<&Path>,
exit_status: ExitStatus,
) -> Result<(), String> {
if exit_status.success() {
Ok(())
} else {
Err(format!(
"Command `{}`{} exited with status {:?}",
input
.iter()
.map(|s| s.as_ref().to_str().unwrap())
.collect::<Vec<_>>()
.join(" "),
cwd.map(|cwd| format!(" (running in folder `{}`)", cwd.display()))
.unwrap_or_default(),
exit_status.code(),
))
}
}
fn command_error<D: Debug>(input: &[&dyn AsRef<OsStr>], cwd: &Option<&Path>, error: D) -> String {
format!(
"Command `{}`{} failed to run: {error:?}",
input
.iter()
.map(|s| s.as_ref().to_str().unwrap())
.collect::<Vec<_>>()
.join(" "),
cwd.as_ref()
.map(|cwd| format!(" (running in folder `{}`)", cwd.display(),))
.unwrap_or_default(),
)
}
pub fn run_command(input: &[&dyn AsRef<OsStr>], cwd: Option<&Path>) -> Result<Output, String> {
run_command_with_env(input, cwd, None)
}
pub fn run_command_with_env(
input: &[&dyn AsRef<OsStr>],
cwd: Option<&Path>,
env: Option<&HashMap<String, String>>,
) -> Result<Output, String> {
let output = get_command_inner(input, cwd, env)
.output()
.map_err(|e| command_error(input, &cwd, e))?;
check_exit_status(input, cwd, output.status)?;
Ok(output)
}
pub fn run_command_with_output(
input: &[&dyn AsRef<OsStr>],
cwd: Option<&Path>,
) -> Result<(), String> {
let exit_status = get_command_inner(input, cwd, None)
.spawn()
.map_err(|e| command_error(input, &cwd, e))?
.wait()
.map_err(|e| command_error(input, &cwd, e))?;
check_exit_status(input, cwd, exit_status)?;
Ok(())
}
pub fn run_command_with_output_and_env(
input: &[&dyn AsRef<OsStr>],
cwd: Option<&Path>,
env: Option<&HashMap<String, String>>,
) -> Result<(), String> {
let exit_status = get_command_inner(input, cwd, env)
.spawn()
.map_err(|e| command_error(input, &cwd, e))?
.wait()
.map_err(|e| command_error(input, &cwd, e))?;
check_exit_status(input, cwd, exit_status)?;
Ok(())
}
pub fn cargo_install(to_install: &str) -> Result<(), String> {
let output = run_command(&[&"cargo", &"install", &"--list"], None)?;
let to_install_needle = format!("{to_install} ");
// cargo install --list returns something like this:
//
// mdbook-toc v0.8.0:
// mdbook-toc
// rust-reduce v0.1.0:
// rust-reduce
//
// We are only interested into the command name so we only look for lines ending with `:`.
if String::from_utf8(output.stdout)
.unwrap()
.lines()
.any(|line| line.ends_with(':') && line.starts_with(&to_install_needle))
{
return Ok(());
}
// We voluntarily ignore this error.
if run_command_with_output(&[&"cargo", &"install", &to_install], None).is_err() {
println!("Skipping installation of `{to_install}`");
}
Ok(())
}
pub fn get_os_name() -> Result<String, String> {
let output = run_command(&[&"uname"], None)?;
let name = std::str::from_utf8(&output.stdout)
.unwrap_or("")
.trim()
.to_string();
if !name.is_empty() {
Ok(name)
} else {
Err("Failed to retrieve the OS name".to_string())
}
}
pub fn get_rustc_host_triple() -> Result<String, String> {
let output = run_command(&[&"rustc", &"-vV"], None)?;
let content = std::str::from_utf8(&output.stdout).unwrap_or("");
for line in content.split('\n').map(|line| line.trim()) {
if !line.starts_with("host:") {
continue;
}
return Ok(line.split(':').nth(1).unwrap().trim().to_string());
}
Err("Cannot find host triple".to_string())
}
pub fn get_gcc_path() -> Result<String, String> {
let content = match fs::read_to_string("gcc_path") {
Ok(content) => content,
Err(_) => {
return Err(
"Please put the path to your custom build of libgccjit in the file \
`gcc_path`, see Readme.md for details"
.into(),
)
}
};
match content
.split('\n')
.map(|line| line.trim())
.filter(|line| !line.is_empty())
.next()
{
Some(gcc_path) => {
let path = Path::new(gcc_path);
if !path.exists() {
Err(format!(
"Path `{}` contained in the `gcc_path` file doesn't exist",
gcc_path,
))
} else {
Ok(gcc_path.into())
}
}
None => Err("No path found in `gcc_path` file".into()),
}
}
pub struct CloneResult {
pub ran_clone: bool,
pub repo_name: String,
}
pub fn git_clone(to_clone: &str, dest: Option<&Path>) -> Result<CloneResult, String> {
let repo_name = to_clone.split('/').last().unwrap();
let repo_name = match repo_name.strip_suffix(".git") {
Some(n) => n.to_string(),
None => repo_name.to_string(),
};
let dest = dest
.map(|dest| dest.join(&repo_name))
.unwrap_or_else(|| Path::new(&repo_name).into());
if dest.is_dir() {
return Ok(CloneResult {
ran_clone: false,
repo_name,
});
}
run_command_with_output(&[&"git", &"clone", &to_clone, &dest], None)?;
Ok(CloneResult {
ran_clone: true,
repo_name,
})
}
pub fn walk_dir<P, D, F>(dir: P, mut dir_cb: D, mut file_cb: F) -> Result<(), String>
where
P: AsRef<Path>,
D: FnMut(&Path) -> Result<(), String>,
F: FnMut(&Path) -> Result<(), String>,
{
let dir = dir.as_ref();
for entry in fs::read_dir(dir)
.map_err(|error| format!("Failed to read dir `{}`: {:?}", dir.display(), error))?
{
let entry = entry
.map_err(|error| format!("Failed to read entry in `{}`: {:?}", dir.display(), error))?;
let entry_path = entry.path();
if entry_path.is_dir() {
dir_cb(&entry_path)?;
} else {
file_cb(&entry_path)?;
}
}
Ok(())
}
|
