simple_rc: win init simple resource pack

Signed-off-by: fufesou <shuanglongchen@yeah.net>

src/rc.rs

@@ -0,0 +1,38 @@
+use hbb_common::{bail, ResultType};
+use std::{
+    fs::{self, File},
+    io::prelude::*,
+    path::Path,
+};
+
+#[allow(dead_code)]
+pub fn extract_resources(root_path: &str) -> ResultType<()> {
+    let mut resources: Vec<(&str, &[u8])> = Vec::new();
+    resources.push((outfile_4, &outdata_4));
+    do_extract(root_path, resources)?;
+    Ok(())
+}
+
+#[allow(dead_code)]
+fn do_extract(root_path: &str, resources: Vec<(&str, &[u8])>) -> ResultType<()> {
+    let mut root_path = root_path.replace("\\", "/");
+    if !root_path.ends_with('/') {
+        root_path.push('/');
+    }
+    let root_path = Path::new(&root_path);
+    for (outfile, data) in resources {
+        let outfile_path = root_path.join(outfile);
+        match outfile_path.parent().and_then(|p| p.to_str()) {
+            None => {
+                bail!("Failed to get parent of {}", outfile_path.display());
+            }
+            Some(p) => {
+                fs::create_dir_all(p)?;
+                let mut of = File::create(outfile_path)?;
+                of.write_all(data)?;
+                of.flush()?;
+            }
+        }
+    }
+    Ok(())
+}