From Failure into std::error::Error (#36)

* Update changelog

* Move from failure to use stderr

Related to datrs/hypercore#101

Author: bltavares

CHANGELOG.md

@@ -1,3 +1,29 @@
+## 2020-02-02, Version 1.0.0
+### Commits
+- [[`3de8d37a0c`](https://github.com/datrs/random-access-disk/commit/3de8d37a0c33bc15874de8870734bbdd07a8b24c)] 1.0.0 (substack)
+- [[`2fca3428a6`](https://github.com/datrs/random-access-disk/commit/2fca3428a6ca6e484c5b31c8b62422553641731e)] Merge pull request #28 from bltavares/bump-deps (Szabolcs Berecz)
+- [[`bebe8b4a2c`](https://github.com/datrs/random-access-disk/commit/bebe8b4a2c95dcd6d19c54ceb2fe854799af4ea4)] Update code to editio 2018 (Bruno Tavares)
+- [[`310dd8a5d7`](https://github.com/datrs/random-access-disk/commit/310dd8a5d79e2edcfbded8cb48a17c5949c6b276)] Bump random-access-storage to 3.0.0 (Bruno Tavares)
+- [[`95c3dad271`](https://github.com/datrs/random-access-disk/commit/95c3dad2715ade75c18337bb72f109573c9c08e3)] updated to use u64 (substack)
+- [[`1d884a4432`](https://github.com/datrs/random-access-disk/commit/1d884a443232528c2a0a9e03901cb12eca137ac1)] sync_all implementation (substack)
+- [[`bd9d0f6a86`](https://github.com/datrs/random-access-disk/commit/bd9d0f6a869d9f8225ae8582a5bfe5db6ca52578)] Update mkdirp requirement from 0.1.0 to 1.0.0 (dependabot-preview[bot])
+- [[`f9b34735e7`](https://github.com/datrs/random-access-disk/commit/f9b34735e79020ff2f39bef510026f5cf8bf02b3)] Update quickcheck requirement from 0.7.2 to 0.8.0 (dependabot[bot])
+- [[`4785a3dfa5`](https://github.com/datrs/random-access-disk/commit/4785a3dfa5aed164df833eafaeef4edda0dfd2c4)] Update changelog (Yoshua Wuyts)
+
+### Stats
+```diff
+ CHANGELOG.md                       |  16 ++++++-
+ Cargo.toml                         |  25 ++++-----
+ fuzz/Cargo.toml                    |   1 +-
+ fuzz/fuzz_targets/fuzz_target_1.rs |   6 +--
+ src/lib.rs                         | 109 ++++++++++++++++++++++++--------------
+ tests/model.rs                     |  34 ++++--------
+ tests/regression.rs                |   5 +--
+ tests/test.rs                      |  82 +++++++++++++++++++++++++++--
+ 8 files changed, 194 insertions(+), 84 deletions(-)
+```
+
+
 ## 2018-12-20, Version 0.8.0
 ### Commits
 - [[`c7cdc2d39a`](https://github.com/datrs/random-access-disk/commit/c7cdc2d39a7d92103f7125c28d2451ecf6272578)] (cargo-release) version 0.8.0 (Yoshua Wuyts)

Cargo.toml

@@ -10,7 +10,7 @@ version = "1.0.0"
 edition = "2018"
 
 [dependencies]
-failure = "0.1.6"
+anyhow = "1.0.26"
 mkdirp = "1.0.0"
 random-access-storage = "3.0.0"
 

src/lib.rs

@@ -3,7 +3,7 @@
 #![cfg_attr(feature = "nightly", doc(include = "../README.md"))]
 #![cfg_attr(test, deny(warnings))]
 
-use failure::{ensure, Error};
+use anyhow::{anyhow, Error};
 use random_access_storage::RandomAccess;
 use std::fs::{self, OpenOptions};
 use std::io::{Read, Seek, SeekFrom, Write};
@@ -31,7 +31,7 @@ impl RandomAccessDisk {
 }
 
 impl RandomAccess for RandomAccessDisk {
-  type Error = Error;
+  type Error = Box<dyn std::error::Error + Sync + Send>;
 
   fn write(&mut self, offset: u64, data: &[u8]) -> Result<(), Self::Error> {
     let mut file = self.file.as_ref().expect("self.file was None.");
@@ -59,15 +59,17 @@ impl RandomAccess for RandomAccessDisk {
   // reflect the state of the world.
   // #[cfg_attr(test, allow(unused_io_amount))]
   fn read(&mut self, offset: u64, length: u64) -> Result<Vec<u8>, Self::Error> {
-    ensure!(
-      (offset + length) as u64 <= self.length,
-      format!(
-        "Read bounds exceeded. {} < {}..{}",
-        self.length,
-        offset,
-        offset + length
-      )
-    );
+    if (offset + length) as u64 > self.length {
+      return Err(
+        anyhow!(
+          "Read bounds exceeded. {} < {}..{}",
+          self.length,
+          offset,
+          offset + length
+        )
+        .into(),
+      );
+    }
 
     let mut file = self.file.as_ref().expect("self.file was None.");
     let mut buffer = vec![0; length as usize];