1 files changed, 26 insertions, 0 deletions
diff --git a/src/util.rs b/src/util.rs
index eac71f1..227f251 100644
--- a/src/util.rs
+++ b/src/util.rs
@@ -1,6 +1,7 @@
 use libc::{timespec, utimensat, AT_FDCWD, AT_SYMLINK_NOFOLLOW};
 use log::{debug, error, trace};
 use std::ffi::CString;
+use std::io::Write;
 use std::os::unix::ffi::OsStrExt;
 use std::path::{Component, Path, PathBuf};
 use std::time::{SystemTime, UNIX_EPOCH};
@@ -19,6 +20,14 @@ pub enum UtilError {
     #[error("failed to copy {0} to {1}")]
     CopyFile(PathBuf, PathBuf, #[source] std::io::Error),
 
+    /// Failed to create a file.
+    #[error("failed to create file {0}")]
+    CreateFile(PathBuf, #[source] std::io::Error),
+
+    /// Failed to write to a file.
+    #[error("failed to write to file {0}")]
+    FileWrite(PathBuf, #[source] std::io::Error),
+
     #[error("failed to get file metadata: {0}")]
     FileMetadata(PathBuf, #[source] std::io::Error),
 
@@ -48,6 +57,23 @@ pub fn copy(src: &Path, dest: &Path) -> Result<(), UtilError> {
     Ok(())
 }
 
+pub fn write(filename: &Path, content: &str) -> Result<(), UtilError> {
+    if let Some(parent) = filename.parent() {
+        trace!("parent: {}", parent.display());
+        if !parent.exists() {
+            debug!("creating directory {}", parent.display());
+            std::fs::create_dir_all(parent).map_err(|e| UtilError::CreateDir(parent.into(), e))?;
+        }
+    }
+
+    trace!("writing HTML: {}", filename.display());
+    let mut f =
+        std::fs::File::create(filename).map_err(|e| UtilError::CreateFile(filename.into(), e))?;
+    f.write_all(content.as_bytes())
+        .map_err(|e| UtilError::FileWrite(filename.into(), e))?;
+    Ok(())
+}
+
 pub fn get_mtime(src: &Path) -> Result<SystemTime, UtilError> {
     let metadata = std::fs::metadata(src).map_err(|e| UtilError::FileMetadata(src.into(), e))?;
     let mtime = metadata