add import directory file and errors

leo/directories/imports.rs

@@ -0,0 +1,33 @@
+use crate::errors::ImportsDirectoryError;
+
+use std::{fs, path::PathBuf};
+
+pub(crate) static IMPORTS_DIRECTORY_NAME: &str = "imports/";
+
+pub struct ImportsDirectory;
+
+impl ImportsDirectory {
+    /// Creates a directory at the provided path with the default directory name.
+    pub fn create(path: &PathBuf) -> Result<(), ImportsDirectoryError> {
+        let mut path = path.to_owned();
+        if path.is_dir() && !path.ends_with(IMPORTS_DIRECTORY_NAME) {
+            path.push(PathBuf::from(IMPORTS_DIRECTORY_NAME));
+        }
+
+        fs::create_dir_all(&path).map_err(ImportsDirectoryError::Creating)
+    }
+
+    /// Removes the directory at the provided path.
+    pub fn remove(path: &PathBuf) -> Result<(), ImportsDirectoryError> {
+        let mut path = path.to_owned();
+        if path.is_dir() && !path.ends_with(IMPORTS_DIRECTORY_NAME) {
+            path.push(PathBuf::from(IMPORTS_DIRECTORY_NAME));
+        }
+
+        if path.exists() {
+            fs::remove_dir_all(&path).map_err(ImportsDirectoryError::Removing)?;
+        }
+
+        Ok(())
+    }
+}

leo/directories/mod.rs

@@ -1,3 +1,6 @@
+pub mod imports;
+pub use self::imports::*;
+
 pub mod inputs;
 pub use self::inputs::*;
 

leo/errors/directory/imports.rs

@@ -0,0 +1,28 @@
+use std::{ffi::OsString, fs::FileType, io};
+
+#[derive(Debug, Error)]
+pub enum ImportsDirectoryError {
+    #[error("creating: {}", _0)]
+    Creating(io::Error),
+
+    #[error("file entry getting: {}", _0)]
+    GettingFileEntry(io::Error),
+
+    #[error("file {:?} extension getting", _0)]
+    GettingFileExtension(OsString),
+
+    #[error("file {:?} type getting: {}", _0, _1)]
+    GettingFileType(OsString, io::Error),
+
+    #[error("invalid file {:?} extension: {:?}", _0, _1)]
+    InvalidFileExtension(OsString, OsString),
+
+    #[error("invalid file {:?} type: {:?}", _0, _1)]
+    InvalidFileType(OsString, FileType),
+
+    #[error("reading: {}", _0)]
+    Reading(io::Error),
+
+    #[error("removing: {}", _0)]
+    Removing(io::Error),
+}

leo/errors/directory/mod.rs

@@ -1,3 +1,6 @@
+pub mod imports;
+pub use self::imports::*;
+
 pub mod inputs;
 pub use self::inputs::*;
 

leo/files/zip.rs

@@ -1,7 +1,7 @@
 //! The program package zip file.
 
 use crate::{
-    directories::{INPUTS_DIRECTORY_NAME, OUTPUTS_DIRECTORY_NAME},
+    directories::{IMPORTS_DIRECTORY_NAME, INPUTS_DIRECTORY_NAME, OUTPUTS_DIRECTORY_NAME},
     errors::ZipFileError,
     files::{
         CHECKSUM_FILE_EXTENSION,
@@ -109,9 +109,11 @@ impl ZipFile {
 }
 
 fn is_excluded(path: &Path) -> bool {
-    // excluded directories: `/inputs`, `/outputs`
+    // excluded directories: `inputs`, `outputs`, `imports`
     if path.ends_with(INPUTS_DIRECTORY_NAME.trim_end_matches("/"))
         | path.ends_with(OUTPUTS_DIRECTORY_NAME.trim_end_matches("/"))
+        | path.ends_with(IMPORTS_DIRECTORY_NAME.trim_end_matches("/"))
+        | path
     {
         return true;
     }