elias/imgui-rs
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Verify that cimgui/imgui files are accessible

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This provides a nicer error if somebody is trying to run the examples
without having submodules fetched
This commit is contained in:
Joonas Javanainen 2019-03-05 19:56:52 +02:00
parent 5304f13362
commit 74ff73d06d
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GPG Key ID: D39CCA5CB19B9179
1 changed files with 33 additions and 9 deletions
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42
imgui-sys/build.rs
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@ -1,10 +1,34 @@
fn main() {
cc::Build::new()
.cpp(true)
.file("third-party/cimgui/cimgui.cpp")
.file("third-party/cimgui/imgui/imgui.cpp")
.file("third-party/cimgui/imgui/imgui_demo.cpp")
.file("third-party/cimgui/imgui/imgui_draw.cpp")
.file("third-party/cimgui/imgui/imgui_widgets.cpp")
.compile("libcimgui.a");
use std::fs;
use std::io;
const CPP_FILES: [&str; 5] = [
"third-party/cimgui/cimgui.cpp",
"third-party/cimgui/imgui/imgui.cpp",
"third-party/cimgui/imgui/imgui_demo.cpp",
"third-party/cimgui/imgui/imgui_draw.cpp",
"third-party/cimgui/imgui/imgui_widgets.cpp",
];
fn assert_file_exists(path: &str) -> io::Result<()> {
match fs::metadata(path) {
Ok(_) => Ok(()),
Err(ref e) if e.kind() == io::ErrorKind::NotFound => {
panic!(
"Can't access {}. Did you forget to fetch git submodules?",
path
);
}
Err(e) => Err(e),
}
}
fn main() -> io::Result<()> {
let mut build = cc::Build::new();
build.cpp(true);
for path in &CPP_FILES {
assert_file_exists(path)?;
build.file(path);
}
build.compile("libcimgui.a");
Ok(())
}