Merge pull request #42 from vrmiguel/const-confirmation

Reuse Confirmation struct when checking for overwrite permission

src/cli.rs

@@ -37,8 +37,8 @@ pub fn parse_args() -> crate::Result<ParsedArgs> {
     match &mut parsed_args.command {
         Command::Compress { files, .. } | Command::Decompress { files, .. } => {
             *files = canonicalize_files(&files)?;
-        }
-        _ => {}
+        },
+        _ => {},
     }
     Ok(parsed_args)
 }
@@ -72,7 +72,7 @@ fn canonicalize(path: impl AsRef<Path>) -> crate::Result<PathBuf> {
             } else {
                 Err(io_err.into())
             }
-        }
+        },
     }
 }
 
@@ -107,7 +107,7 @@ pub fn parse_args_from(mut args: Vec<OsString>) -> crate::Result<ParsedArgs> {
 
             let command = Command::Compress { files, compressed_output_path };
             ParsedArgs { command, flags }
-        }
+        },
         // Defaults to decompression when there is no subcommand
         None => {
             flags_info.push(arg_flag!('o', "output"));
@@ -130,7 +130,7 @@ pub fn parse_args_from(mut args: Vec<OsString>) -> crate::Result<ParsedArgs> {
 
             let command = Command::Decompress { files, output_folder };
             ParsedArgs { command, flags }
-        }
+        },
         _ => unreachable!("You should match each subcommand passed."),
     };
 
@@ -157,20 +157,14 @@ mod tests {
         assert_eq!(test_cli("--help").unwrap().command, Command::ShowHelp);
         assert_eq!(test_cli("--version").unwrap().command, Command::ShowVersion);
         assert_eq!(test_cli("--version").unwrap().flags, oof::Flags::default());
-        assert_eq!(
-            test_cli("foo.zip bar.zip").unwrap().command,
-            Command::Decompress {
+        assert_eq!(test_cli("foo.zip bar.zip").unwrap().command, Command::Decompress {
             files: vec!["foo.zip".into(), "bar.zip".into()],
             output_folder: None
-            }
-        );
-        assert_eq!(
-            test_cli("compress foo bar baz.zip").unwrap().command,
-            Command::Compress {
+        });
+        assert_eq!(test_cli("compress foo bar baz.zip").unwrap().command, Command::Compress {
             files: vec!["foo".into(), "bar".into()],
             compressed_output_path: "baz.zip".into()
-            }
-        );
+        });
         assert_eq!(test_cli("compress").unwrap_err(), crate::Error::MissingArgumentsForCompression);
     }
 
@@ -180,12 +174,9 @@ mod tests {
         assert_eq!(test_cli("--help").unwrap().flags, oof::Flags::default());
         assert_eq!(test_cli("--version").unwrap().flags, oof::Flags::default());
 
-        assert_eq!(
-            test_cli("foo --yes bar --output folder").unwrap().flags,
-            oof::Flags {
+        assert_eq!(test_cli("foo --yes bar --output folder").unwrap().flags, oof::Flags {
             boolean_flags: vec!["yes"].into_iter().collect(),
             argument_flags: vec![("output", OsString::from("folder"))].into_iter().collect(),
-            }
-        );
+        });
     }
 }

src/commands.rs

@@ -16,7 +16,6 @@ use crate::{
         BzipDecompressor, DecompressionResult, Decompressor, GzipDecompressor, LzmaDecompressor,
         TarDecompressor, ZipDecompressor,
     },
-    dialogs::Confirmation,
     extension::{CompressionFormat, Extension},
     file::File,
     oof, utils,
@@ -140,8 +139,7 @@ fn decompress_file_in_memory(
             println!("{}[INFO]{} saving to {:?}.", colors::yellow(), colors::reset(), file_name);
 
             if file_name.exists() {
-                let confirm = Confirmation::new("Do you want to overwrite 'FILE'?", Some("FILE"));
-                if !utils::permission_for_overwriting(&file_name, flags, &confirm)? {
+                if !utils::permission_for_overwriting(&file_name, flags)? {
                     return Ok(());
                 }
             }
@@ -169,10 +167,9 @@ fn compress_files(
 ) -> crate::Result<()> {
     let mut output = File::from(output_path)?;
 
-    let confirm = Confirmation::new("Do you want to overwrite 'FILE'?", Some("FILE"));
     let (first_compressor, second_compressor) = get_compressor(&output)?;
 
-    if output_path.exists() && !utils::permission_for_overwriting(&output_path, flags, &confirm)? {
+    if output_path.exists() && !utils::permission_for_overwriting(&output_path, flags)? {
         // The user does not want to overwrite the file
         return Ok(());
     }

src/decompressors/tar.rs

@@ -8,7 +8,7 @@ use tar::{self, Archive};
 use utils::colors;
 
 use super::decompressor::{DecompressionResult, Decompressor};
-use crate::{dialogs::Confirmation, file::File, oof, utils};
+use crate::{file::File, oof, utils};
 
 #[derive(Debug)]
 pub struct TarDecompressor;
@@ -22,7 +22,6 @@ impl TarDecompressor {
             &from.path
         );
         let mut files_unpacked = vec![];
-        let confirm = Confirmation::new("Do you want to overwrite 'FILE'?", Some("FILE"));
 
         let mut archive: Archive<Box<dyn Read>> = match from.contents_in_memory {
             Some(bytes) => tar::Archive::new(Box::new(Cursor::new(bytes))),
@@ -36,9 +35,7 @@ impl TarDecompressor {
             let mut file = file?;
 
             let file_path = PathBuf::from(into).join(file.path()?);
-            if file_path.exists()
-                && !utils::permission_for_overwriting(&file_path, flags, &confirm)?
-            {
+            if file_path.exists() && !utils::permission_for_overwriting(&file_path, flags)? {
                 // The user does not want to overwrite the file
                 continue;
             }

src/decompressors/zip.rs

@@ -8,7 +8,7 @@ use utils::colors;
 use zip::{self, read::ZipFile, ZipArchive};
 
 use super::decompressor::{DecompressionResult, Decompressor};
-use crate::{dialogs::Confirmation, file::File, oof, utils};
+use crate::{file::File, oof, utils};
 
 #[cfg(unix)]
 fn __unix_set_permissions(file_path: &Path, file: &ZipFile) {
@@ -43,7 +43,6 @@ impl ZipDecompressor {
     where
         R: Read + Seek,
     {
-        let confirm = Confirmation::new("Do you want to overwrite 'FILE'?", Some("FILE"));
         let mut unpacked_files = vec![];
         for idx in 0..archive.len() {
             let mut file = archive.by_index(idx)?;
@@ -53,9 +52,7 @@ impl ZipDecompressor {
             };
 
             let file_path = into.join(file_path);
-            if file_path.exists()
-                && !utils::permission_for_overwriting(&file_path, flags, &confirm)?
-            {
+            if file_path.exists() && !utils::permission_for_overwriting(&file_path, flags)? {
                 // The user does not want to overwrite the file
                 continue;
             }

src/dialogs.rs

@@ -11,7 +11,7 @@ pub struct Confirmation<'a> {
 pub struct Error;
 
 impl<'a> Confirmation<'a> {
-    pub fn new(prompt: &'a str, pattern: Option<&'a str>) -> Self {
+    pub const fn new(prompt: &'a str, pattern: Option<&'a str>) -> Self {
         Self { prompt, placeholder: pattern }
     }
 

src/lib.rs

@@ -12,9 +12,12 @@ mod extension;
 mod file;
 mod utils;
 
+use dialogs::Confirmation;
 pub use error::{Error, Result};
 
 const VERSION: &str = "0.1.5";
+const OVERWRITE_CONFIRMATION: Confirmation =
+    Confirmation::new("Do you want to overwrite 'FILE'?", Some("FILE"));
 
 fn help_command() {
     use utils::colors::*;

src/utils.rs

@@ -5,7 +5,7 @@ use std::{
     path::{Path, PathBuf},
 };
 
-use crate::{dialogs::Confirmation, extension::CompressionFormat, file::File, oof};
+use crate::{extension::CompressionFormat, file::File, oof, OVERWRITE_CONFIRMATION};
 
 #[macro_export]
 #[cfg(debug_assertions)]
@@ -95,11 +95,7 @@ pub fn change_dir_and_return_parent(filename: &Path) -> crate::Result<PathBuf> {
     Ok(previous_location)
 }
 
-pub fn permission_for_overwriting(
-    path: &Path,
-    flags: &oof::Flags,
-    confirm: &Confirmation,
-) -> crate::Result<bool> {
+pub fn permission_for_overwriting(path: &Path, flags: &oof::Flags) -> crate::Result<bool> {
     match (flags.is_present("yes"), flags.is_present("no")) {
         (true, true) => {
             unreachable!(
@@ -112,7 +108,7 @@ pub fn permission_for_overwriting(
     }
 
     let file_path_str = to_utf(path);
-    confirm.ask(Some(&file_path_str))
+    OVERWRITE_CONFIRMATION.ask(Some(&file_path_str))
 }
 
 pub fn to_utf(os_str: impl AsRef<OsStr>) -> String {