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
|
// Build script for Subplot, locates and builds the embedded resource set from
// the share directory
use anyhow::Result;
use std::io::Write;
use std::path::{Component, Path, PathBuf};
use walkdir::WalkDir;
fn path_ignore(path: &Path) -> bool {
// We have a number of rules for ignoring any given path.
path.components().any(|component| {
match component {
Component::Prefix(_) => true,
Component::RootDir => true,
Component::CurDir => true,
Component::ParentDir => true,
Component::Normal(part) => {
if let Some(part) = part.to_str() {
// We don't want dot files, tilde files, bak files
// or the python cache. Add other things here if
// there's stuff ending up in the resources tree
// which we don't want.
part.starts_with('.')
|| part.ends_with('~')
|| part.ends_with(".bak")
|| part == "__pycache__"
} else {
// We don't want any non-unicode paths
true
}
}
}
})
}
fn gather_share_files() -> Result<Vec<PathBuf>> {
let base_path = Path::new(env!("CARGO_MANIFEST_DIR")).join("share");
println!("cargo:rerun-if-changed={}", base_path.display());
let mut ret = Vec::new();
for entry in WalkDir::new(&base_path) {
let entry = entry?;
let entry_path = entry.path().strip_prefix(&base_path)?;
if entry_path.components().count() == 0 || path_ignore(entry_path) {
continue;
}
// If this path part is a directory, we want to watch it but we don't
// represent directories in the resources tree
if entry.file_type().is_dir() {
println!("cargo:rerun-if-changed={}", entry.path().display());
continue;
}
// If this is a symlink we need cargo to watch the target of the link
// even though we'll treat it as a basic file when we embed it
if entry.file_type().is_symlink() {
let target = std::fs::read_link(entry.path())?;
println!("cargo:rerun-if-changed={}", target.display());
}
println!("cargo:rerun-if-changed={}", entry.path().display());
ret.push(entry_path.into());
}
Ok(ret)
}
fn write_out_resource_file<'a>(paths: impl Iterator<Item = &'a Path>) -> Result<()> {
let mut out_path: PathBuf = std::env::var("OUT_DIR")?.into();
out_path.push("embedded_files.inc");
let mut fh = std::fs::File::create(out_path)?;
writeln!(fh, "&[")?;
for entry in paths {
let sharepath = Path::new("/share").join(entry);
writeln!(
fh,
r#"({:?}, include_bytes!(concat!(env!("CARGO_MANIFEST_DIR"), {:?}))),"#,
entry.display(),
sharepath.display()
)?;
}
writeln!(fh, "]")?;
fh.flush()?;
Ok(())
}
fn main() {
println!("cargo:rerun-if-env-changed=DEB_BUILD_OPTIONS");
let paths = if std::env::var("DEB_BUILD_OPTIONS").is_err() {
println!("cargo:rustc-env=FALLBACK_PATH=");
gather_share_files().expect("Unable to scan the share tree")
} else {
println!("cargo:rustc-env=FALLBACK_PATH=/usr/share/subplot");
vec![]
};
write_out_resource_file(paths.iter().map(PathBuf::as_path))
.expect("Unable to write the resource file out");
}
|
