add anyhow and thiserror

Cargo.lock

@@ -16,6 +16,11 @@ dependencies = [
  "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "anyhow"
+version = "1.0.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "atty"
 version = "0.2.13"
@@ -80,12 +85,14 @@ dependencies = [
 name = "garbage"
 version = "0.1.1"
 dependencies = [
+ "anyhow 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "chrono 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "env_logger 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "structopt 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "thiserror 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "walkdir 2.2.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "xdg 2.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -258,6 +265,24 @@ dependencies = [
  "unicode-width 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "thiserror"
+version = "1.0.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "thiserror-impl 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "thiserror-impl"
+version = "1.0.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "proc-macro2 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "thread_local"
 version = "0.3.6"
@@ -350,6 +375,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 [metadata]
 "checksum aho-corasick 0.7.6 (registry+https://github.com/rust-lang/crates.io-index)" = "58fb5e95d83b38284460a5fda7d6470aa0b8844d283a0b614b8535e880800d2d"
 "checksum ansi_term 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ee49baf6cb617b853aa8d93bf420db2383fab46d314482ca2803b40d5fde979b"
+"checksum anyhow 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)" = "9267dff192e68f3399525901e709a48c1d3982c9c072fa32f2127a0cb0babf14"
 "checksum atty 0.2.13 (registry+https://github.com/rust-lang/crates.io-index)" = "1803c647a3ec87095e7ae7acfca019e98de5ec9a7d01343f611cf3152ed71a90"
 "checksum autocfg 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)" = "1d49d90015b3c36167a20fe2810c5cd875ad504b39cff3d4eae7977e6b7c1cb2"
 "checksum bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "cf1de2fe8c75bc145a2f577add951f8134889b4795d47466a54a5c846d691693"
@@ -379,6 +405,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum syn 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)" = "661641ea2aa15845cddeb97dad000d22070bb5c1fb456b96c1cba883ec691e92"
 "checksum termcolor 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)" = "96d6098003bde162e4277c70665bd87c326f5a0c3f3fbfb285787fa482d54e6e"
 "checksum textwrap 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d326610f408c7a4eb6f51c37c330e496b08506c9457c9d34287ecc38809fb060"
+"checksum thiserror 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)" = "cc6b305ec0e323c7b6cfff6098a22516e0063d0bb7c3d88660a890217dca099a"
+"checksum thiserror-impl 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)" = "45ba8d810d9c48fc456b7ad54574e8bfb7c7918a57ad7a6e6a0985d7959e8597"
 "checksum thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "c6b53e329000edc2b34dbe8545fd20e55a333362d0a321909685a19bd28c3f1b"
 "checksum time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)" = "db8dcfca086c1143c9270ac42a2bbd8a7ee477b78ac8e45b19abfb0cbede4b6f"
 "checksum unicode-segmentation 1.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e83e153d1053cbb5a118eeff7fd5be06ed99153f00dbcd8ae310c5fb2b22edc0"

Cargo.toml

@@ -11,11 +11,13 @@ name = "garbage"
 path = "src/main.rs"
 
 [dependencies]
+anyhow = "1.0"
 chrono = "0.4"
 env_logger = "0.7"
 lazy_static = "1.0"
 log = "0.4"
 regex = "1.1"
 structopt = "0.3"
+thiserror = "1.0"
 walkdir = "2.2"
 xdg = "2.2"

src/errors.rs

@@ -1,32 +1,21 @@
-#[derive(Debug)]
+#[derive(Debug, Error)]
 pub enum Error {
-    Io(std::io::Error),
+    #[error("IO error: {0}")]
-    WalkDir(walkdir::Error),
+    Io(#[from] std::io::Error),
-    BadTrashInfo(TrashInfoError),
+    #[error("Walkdir error: {0}")]
-    ParseDate(chrono::format::ParseError),
+    WalkDir(#[from] walkdir::Error),
+    #[error("Bad .trashinfo file: {0}")]
+    BadTrashInfo(#[from] TrashInfoError),
+    #[error("Date parsing error: {0}")]
+    ParseDate(#[from] chrono::format::ParseError),
 }
 
-#[derive(Debug)]
+#[derive(Debug, Error)]
 pub enum TrashInfoError {
+    #[error("Missing [TrashInfo] header")]
     MissingHeader,
+    #[error("Missing path attribute")]
     MissingPath,
+    #[error("Missing date attribute")]
     MissingDate,
 }
-
-impl From<std::io::Error> for Error {
-    fn from(err: std::io::Error) -> Self {
-        Error::Io(err)
-    }
-}
-
-impl From<walkdir::Error> for Error {
-    fn from(err: walkdir::Error) -> Self {
-        Error::WalkDir(err)
-    }
-}
-
-impl From<chrono::format::ParseError> for Error {
-    fn from(err: chrono::format::ParseError) -> Self {
-        Error::ParseDate(err)
-    }
-}

src/main.rs

@@ -2,6 +2,8 @@
 extern crate lazy_static;
 #[macro_use]
 extern crate log;
+#[macro_use]
+extern crate thiserror;
 
 mod errors;
 mod ops;