Change the errors away from using anyhow and add --all to empty

Cargo.lock

@@ -9,12 +9,6 @@ dependencies = [
  "winapi",
 ]
 
-[[package]]
-name = "anyhow"
-version = "1.0.33"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a1fd36ffbb1fb7c834eac128ea8d0e310c5aeb635548f9d58861e1308d46e71c"
-
 [[package]]
 name = "arrayref"
 version = "0.3.6"
@@ -194,7 +188,6 @@ checksum = "a357d28ed41a50f9c765dbfe56cbc04a64e53e5fc58ba79fbc34c10ef3df831f"
 name = "garbage"
 version = "0.2.2"
 dependencies = [
- "anyhow",
  "chrono",
  "chrono-humanize",
  "lazy_static",

Cargo.toml

@@ -11,7 +11,6 @@ name = "garbage"
 path = "src/main.rs"
 
 [dependencies]
-anyhow = "1.0"
 chrono = "0.4"
 chrono-humanize = "0.1.1"
 lazy_static = "1.4"

src/dir.rs

@@ -131,6 +131,7 @@ impl Iterator for TrashDirIter {
                 &name.as_bytes()[..name.len() - b".trashinfo".len()],
             ))
         };
+
         Some(
             TrashInfo::from_files(entry.path(), deleted_path)
                 .map_err(Error::from),

src/errors.rs

@@ -1,15 +1,38 @@
+use std::path::PathBuf;
+
+/// Result convenience type for the Error type
+pub type Result<T, E = Error> = std::result::Result<T, E>;
+
 /// All errors that could happen
 #[derive(Debug, Error)]
 #[allow(missing_docs)]
 pub enum Error {
     #[error("IO error: {0}")]
     Io(#[from] std::io::Error),
+
     #[error("Walkdir error: {0}")]
     WalkDir(#[from] walkdir::Error),
-    #[error("Bad .trashinfo file: {0}")]
-    BadTrashInfo(#[from] TrashInfoError),
+
+    #[error("Mount error: {0}")]
+    Mount(#[from] libmount::mountinfo::ParseError),
+
+    #[error("Strip prefix error: {0}")]
+    StripPrefix(#[from] std::path::StripPrefixError),
+
+    #[error("Bad .trashinfo file at {0:?}: {1}")]
+    BadTrashInfo(PathBuf, TrashInfoError),
+
     #[error("Date parsing error: {0}")]
     ParseDate(#[from] chrono::format::ParseError),
+
+    #[error("No trash directory exists at: {0:?}")]
+    TrashDirDoesntExist(PathBuf),
+
+    #[error("No files in the trash directory: {0:?}")]
+    NoFilesInThisDirectory(PathBuf),
+
+    #[error("Put error: {0}")]
+    Put(#[from] crate::ops::put::PutError),
 }
 
 /// Errors related to .trashinfo files
@@ -18,8 +41,10 @@ pub enum Error {
 pub enum TrashInfoError {
     #[error("Missing [TrashInfo] header")]
     MissingHeader,
+
     #[error("Missing path attribute")]
     MissingPath,
+
     #[error("Missing date attribute")]
     MissingDate,
 }

src/info.rs

@@ -64,6 +64,7 @@ impl TrashInfo {
             if i == 0 {
                 if line != "[Trash Info]" {
                     return Err(Error::BadTrashInfo(
+                        info_path,
                         TrashInfoError::MissingHeader,
                     ));
                 } else {
@@ -94,14 +95,20 @@ impl TrashInfo {
         let path = match path {
             Some(path) => path,
             None => {
-                return Err(Error::BadTrashInfo(TrashInfoError::MissingPath))
+                return Err(Error::BadTrashInfo(
+                    info_path,
+                    TrashInfoError::MissingPath,
+                ))
             }
         };
 
         let deletion_date = match deletion_date {
             Some(deletion_date) => deletion_date,
             None => {
-                return Err(Error::BadTrashInfo(TrashInfoError::MissingDate))
+                return Err(Error::BadTrashInfo(
+                    info_path,
+                    TrashInfoError::MissingDate,
+                ))
             }
         };
 

src/lib.rs

@@ -7,8 +7,6 @@ extern crate lazy_static;
 #[macro_use]
 extern crate structopt;
 #[macro_use]
-extern crate anyhow;
-#[macro_use]
 extern crate thiserror;
 
 #[macro_use]
@@ -26,7 +24,7 @@ use std::path::PathBuf;
 use xdg::BaseDirectories;
 
 pub use crate::dir::TrashDir;
-pub use crate::errors::Error;
+pub use crate::errors::{Error, Result};
 pub use crate::info::TrashInfo;
 use crate::mounts::Mounts;
 

src/main.rs

@@ -1,10 +1,8 @@
 #![deny(warnings)]
 
-extern crate anyhow;
-
-use anyhow::Result;
-use garbage::ops::{
-    self, EmptyOptions, ListOptions, PutOptions, RestoreOptions,
+use garbage::{
+    ops::{self, EmptyOptions, ListOptions, PutOptions, RestoreOptions},
+    Result,
 };
 use structopt::StructOpt;
 
@@ -46,7 +44,7 @@ fn main() {
     match run() {
         Ok(_) => (),
         Err(err) => {
-            eprintln!("Error: {:?}", err);
+            eprintln!("Error: {}", err);
             // for cause in err.chain() {
             //     eprintln!("- {:?}", cause);
             // }

src/mounts.rs

@@ -4,9 +4,9 @@ use std::fs::File;
 use std::io::Read;
 use std::path::{Path, PathBuf};
 
-use anyhow::Error;
 use libmount::mountinfo::Parser;
 
+use crate::errors::Error;
 use crate::utils;
 
 #[derive(Debug)]

src/ops/empty.rs

@@ -1,9 +1,10 @@
+use std::env;
 use std::fs;
 use std::path::PathBuf;
 
-use anyhow::Result;
 use chrono::{Duration, Local};
 
+use crate::errors::Result;
 use crate::TrashDir;
 
 /// Options to pass to empty
@@ -23,11 +24,16 @@ pub struct EmptyOptions {
     /// By default, this is your home directory's trash ($XDG_DATA_HOME/Trash)
     #[structopt(long = "trash-dir", parse(from_os_str))]
     trash_dir: Option<PathBuf>,
+
+    /// Delete all files in the trash (by default, only files in the current
+    /// directory are listed)
+    #[structopt(short = "a", long = "all")]
+    all: bool,
 }
 
 /// Actually delete files in the trash.
 pub fn empty(options: EmptyOptions) -> Result<()> {
-    let trash_dir = TrashDir::from_opt(options.trash_dir);
+    let trash_dir = TrashDir::from_opt(options.trash_dir.as_ref());
 
     // cutoff date
     let cutoff = if let Some(days) = options.days {
@@ -36,28 +42,32 @@ pub fn empty(options: EmptyOptions) -> Result<()> {
         Local::now()
     };
 
-    for file in trash_dir.iter()? {
-        let file = file?;
-
+    let current_dir = env::current_dir()?;
+    trash_dir
+        .iter()?
+        .collect::<Result<Vec<_>>>()?
+        .into_iter()
         // ignore files that were deleted after the cutoff (younger)
-        let ignore = file.deletion_date > cutoff;
-
-        if !ignore {
+        .filter(|info| info.deletion_date <= cutoff)
+        .filter(|info| options.all || info.path.starts_with(&current_dir))
+        .map(|info| -> Result<_> {
             if options.dry {
-                println!("{:?}", file.path);
+                println!("deleting {:?}", info.path);
             } else {
-                fs::remove_file(file.info_path)?;
+                fs::remove_file(info.info_path)?;
 
-                if file.deleted_path.exists() {
-                    if file.deleted_path.is_dir() {
-                        fs::remove_dir_all(file.deleted_path)?;
+                if info.deleted_path.exists() {
+                    if info.deleted_path.is_dir() {
+                        fs::remove_dir_all(info.deleted_path)?;
                     } else {
-                        fs::remove_file(file.deleted_path)?;
+                        fs::remove_file(info.deleted_path)?;
                     }
                 }
             }
-        }
-    }
+
+            Ok(())
+        })
+        .collect::<Result<_>>()?;
 
     Ok(())
 }

src/ops/list.rs

@@ -1,10 +1,9 @@
-use std::path::PathBuf;
 use std::env;
+use std::path::PathBuf;
 
-use anyhow::Result;
-
+use crate::dir::TrashDir;
+use crate::errors::Result;
 use crate::list;
-use crate::TrashDir;
 
 /// Options to pass to list
 #[derive(StructOpt)]
@@ -25,19 +24,16 @@ pub fn list(options: ListOptions) -> Result<()> {
     let trash_dir = TrashDir::from_opt(options.trash_dir.as_ref());
 
     let current_dir = env::current_dir()?;
+
     let mut files = trash_dir
-        .iter()
-        .unwrap()
-        .filter_map(|entry| match entry {
-            Ok(info) => {
-                if !options.all && !info.path.starts_with(&current_dir) {
-                    return None;
-                }
-                Some(info)
-            }
-            Err(err) => {
-                eprintln!("failed to get file info: {:?}", err);
+        .iter()?
+        .collect::<Result<Vec<_>>>()?
+        .into_iter()
+        .filter_map(|info| {
+            if !options.all && !info.path.starts_with(&current_dir) {
                 None
+            } else {
+                Some(info)
             }
         })
         .collect::<Vec<_>>();

src/ops/mod.rs

@@ -1,9 +1,9 @@
 //! Operations that garbage can do.
 
-mod empty;
-mod list;
-mod put;
-mod restore;
+pub(crate) mod empty;
+pub(crate) mod list;
+pub(crate) mod put;
+pub(crate) mod restore;
 
 pub use self::empty::{empty, EmptyOptions};
 pub use self::list::{list, ListOptions};

src/ops/put.rs

@@ -4,15 +4,15 @@ use std::io::{self, Write};
 use std::os::unix::fs::PermissionsExt;
 use std::path::{Path, PathBuf};
 
-use anyhow::Result;
 use chrono::Local;
 
+use crate::errors::{Error, Result};
 use crate::utils::{self};
 use crate::{TrashDir, TrashInfo};
 use crate::{HOME_MOUNT, MOUNTS};
 
 #[derive(Debug, Error)]
-pub enum Error {
+pub enum PutError {
     // #[error("Refusing to remove directory {0} without '-r' option")]
     // MissingRecursiveOption(PathBuf),
     #[error("Refusing to remove '.' or '..', skipping...")]
@@ -23,6 +23,9 @@ pub enum Error {
 
     #[error("Invalid filename.")]
     InvalidFilename,
+
+    #[error("Couldn't find mount point.")]
+    CouldntFindMountPoint,
 }
 
 /// Options to pass to put
@@ -65,13 +68,14 @@ pub fn put(options: PutOptions) -> Result<()> {
     for path in options.paths.iter() {
         // don't allow deleting '.' or '..'
         let current_dir = env::current_dir()?;
-        ensure!(
-            !(utils::into_absolute(&path)? == current_dir.as_path()
-                || (current_dir.parent().is_some()
-                    && utils::into_absolute(&path)?
-                        == current_dir.parent().unwrap())),
-            Error::CannotTrashDotDirs
-        );
+
+        if !(utils::into_absolute(&path)? == current_dir.as_path()
+            || (current_dir.parent().is_some()
+                && utils::into_absolute(&path)?
+                    == current_dir.parent().unwrap()))
+        {
+            return Err(Error::Put(PutError::CannotTrashDotDirs));
+        }
 
         // pick the best strategy for deleting this particular file
         let strategy = if let Some(ref trash_dir) = options.trash_dir {
@@ -112,7 +116,7 @@ impl DeletionStrategy {
         let target = target.as_ref();
         let target_mount = MOUNTS
             .get_mount_point(target)
-            .ok_or_else(|| anyhow!("couldn't get mount point"))?;
+            .ok_or_else(|| PutError::CouldntFindMountPoint)?;
 
         // first, are we on the home mount?
         if target_mount == *HOME_MOUNT {
@@ -193,7 +197,7 @@ impl DeletionStrategy {
                 }
             };
             if !should_continue {
-                bail!(Error::CancelledByUser);
+                return Err(Error::Put(PutError::CancelledByUser));
             }
         }
 
@@ -204,9 +208,9 @@ impl DeletionStrategy {
         let elapsed_str = elapsed.to_string();
         let target_file = match target.file_name() {
             Some(file) => file.to_os_string(),
-            None => bail!(Error::InvalidFilename),
+            None => return Err(Error::Put(PutError::InvalidFilename)),
         };
-        let file_name = crate::concat_os_str!(elapsed_str, ".", target_file);
+        let file_name = concat_os_str!(elapsed_str, ".", target_file);
         // {
         //     let buf = vec![0; elapsed_str.len() + 1 + target_file.len()];
         //     unimplemented!()
@@ -220,7 +224,7 @@ impl DeletionStrategy {
         let trash_file_path = trash_dir.files_dir()?.join(&file_name);
         let trash_info_path = trash_dir
             .info_dir()?
-            .join(crate::concat_os_str!(file_name, ".trashinfo"));
+            .join(concat_os_str!(file_name, ".trashinfo"));
 
         let trash_info = TrashInfo {
             path: utils::into_absolute(target)?,

src/ops/restore.rs

@@ -3,8 +3,7 @@ use std::fs;
 use std::io;
 use std::path::PathBuf;
 
-use anyhow::Result;
-
+use crate::errors::{Error, Result};
 use crate::list;
 use crate::TrashDir;
 
@@ -27,7 +26,7 @@ pub fn restore(options: RestoreOptions) -> Result<()> {
     let trash_dir = TrashDir::from_opt(options.trash_dir.as_ref());
 
     if trash_dir.check_info_dir()?.is_none() {
-        bail!("There's no trash directory here.");
+        return Err(Error::TrashDirDoesntExist(trash_dir.path().to_path_buf()));
     }
 
     // get list of files sorted by deletion date
@@ -55,7 +54,9 @@ pub fn restore(options: RestoreOptions) -> Result<()> {
     };
 
     if files.len() == 0 {
-        bail!("No files in this trash directory.");
+        return Err(Error::NoFilesInThisDirectory(
+            trash_dir.path().to_path_buf(),
+        ));
     }
 
     list::print_files_list(files.iter(), true);

src/utils.rs

@@ -4,10 +4,11 @@ use std::fs;
 use std::os::unix::ffi::OsStrExt;
 use std::path::{Component, Path, PathBuf, MAIN_SEPARATOR};
 
-use anyhow::Result;
 use percent_encoding::AsciiSet;
 use walkdir::WalkDir;
 
+use crate::errors::Result;
+
 const MASK: &AsciiSet = percent_encoding::CONTROLS;
 
 pub fn into_absolute(path: impl AsRef<Path>) -> Result<PathBuf> {