From 8f410d1ead74b979481f1488a4dcddd33ea829c7 Mon Sep 17 00:00:00 2001
From: Ben Bridle <bridle.benjamin@gmail.com>
Date: Thu, 25 Aug 2022 21:27:39 +1200
Subject: Initial commit
---
src/operations/cp.rs | 62 ++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 62 insertions(+)
create mode 100644 src/operations/cp.rs
(limited to 'src/operations/cp.rs')
diff --git a/src/operations/cp.rs b/src/operations/cp.rs
new file mode 100644
index 0000000..be43826
--- /dev/null
+++ b/src/operations/cp.rs
@@ -0,0 +1,62 @@
+use crate::make_parent_directory;
+use crate::{get_entry, get_optional_entry, list_directory};
+use crate::{EntryType, EntryWriteError};
+use std::path::Path;
+
+pub fn copy<P, Q>(source_path: P, target_path: Q) -> Result<(), EntryWriteError>
+where
+ P: AsRef<Path>,
+ Q: AsRef<Path>,
+{
+ let source = get_entry(&source_path)?;
+ let target = get_optional_entry(&target_path)?;
+ let target_type = target.and_then(|e| Some(e.entry_type));
+
+ match (source.entry_type, target_type) {
+ (EntryType::File, Some(EntryType::File)) => {
+ copy_file(source_path, target_path)?;
+ }
+ (EntryType::File, Some(EntryType::Directory)) => {
+ let target_path = target_path.as_ref().join(source.name);
+ copy_file(source_path, target_path)?;
+ }
+ (EntryType::File, None) => {
+ make_parent_directory(&target_path)?;
+ copy_file(source_path, target_path)?;
+ }
+ (EntryType::Directory, Some(EntryType::File)) => {
+ std::fs::remove_file(&target_path)?;
+ copy_directory(&source_path, &target_path)?;
+ }
+ (EntryType::Directory, Some(EntryType::Directory)) => {
+ let target_path = target_path.as_ref().join(source.name);
+ copy_directory(source_path, target_path)?;
+ }
+ (EntryType::Directory, None) => {
+ make_parent_directory(&target_path)?;
+ copy_directory(source_path, target_path)?;
+ }
+ }
+ Ok(())
+}
+
+fn copy_file<P, Q>(source_path: P, target_path: Q) -> Result<(), EntryWriteError>
+where
+ P: AsRef<Path>,
+ Q: AsRef<Path>,
+{
+ std::fs::copy(source_path, target_path)?;
+ Ok(())
+}
+
+fn copy_directory<P, Q>(source_path: P, target_path: Q) -> Result<(), EntryWriteError>
+where
+ P: AsRef<Path>,
+ Q: AsRef<Path>,
+{
+ for entry in list_directory(&source_path)? {
+ let target_path = target_path.as_ref().join(entry.name);
+ copy(entry.path, &target_path)?;
+ }
+ Ok(())
+}
--
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