Replace std::Error with failure for FormatDiff

This commit is contained in:
Tibo 2018-04-24 15:45:28 +10:00
parent ac8ae00625
commit efb8069cfc
No known key found for this signature in database
GPG key ID: C53F427D5994116C
3 changed files with 76 additions and 27 deletions

64
Cargo.lock generated
View file

@ -175,6 +175,25 @@ dependencies = [
"backtrace 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "failure"
version = "0.1.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"backtrace 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
"failure_derive 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "failure_derive"
version = "0.1.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"quote 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
"syn 0.11.11 (registry+https://github.com/rust-lang/crates.io-index)",
"synstructure 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "fuchsia-zircon"
version = "0.3.3"
@ -309,6 +328,11 @@ name = "quick-error"
version = "1.2.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "quote"
version = "0.3.15"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "quote"
version = "0.5.2"
@ -453,6 +477,7 @@ dependencies = [
"derive-new 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
"diff 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
"env_logger 0.5.9 (registry+https://github.com/rust-lang/crates.io-index)",
"failure 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
"getopts 0.2.17 (registry+https://github.com/rust-lang/crates.io-index)",
"itertools 0.7.8 (registry+https://github.com/rust-lang/crates.io-index)",
"lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
@ -566,6 +591,16 @@ name = "stable_deref_trait"
version = "1.0.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "syn"
version = "0.11.11"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"quote 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
"synom 0.11.3 (registry+https://github.com/rust-lang/crates.io-index)",
"unicode-xid 0.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "syn"
version = "0.13.1"
@ -576,6 +611,23 @@ dependencies = [
"unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "synom"
version = "0.11.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"unicode-xid 0.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "synstructure"
version = "0.6.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"quote 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
"syn 0.11.11 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "tempdir"
version = "0.3.7"
@ -653,6 +705,11 @@ name = "unicode-width"
version = "0.1.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "unicode-xid"
version = "0.0.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "unicode-xid"
version = "0.1.0"
@ -747,6 +804,8 @@ dependencies = [
"checksum env_logger 0.5.9 (registry+https://github.com/rust-lang/crates.io-index)" = "00c45cec4cde3daac5f036c74098b4956151525cdf360cff5ee0092c98823e54"
"checksum environment 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "1f4b14e20978669064c33b4c1e0fb4083412e40fe56cbea2eae80fd7591503ee"
"checksum error-chain 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ff511d5dc435d703f4971bc399647c9bc38e20cb41452e3b9feb4765419ed3f3"
"checksum failure 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "934799b6c1de475a012a02dab0ace1ace43789ee4b99bcfbf1a2e3e8ced5de82"
"checksum failure_derive 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "c7cdda555bb90c9bb67a3b670a0f42de8e73f5981524123ad8578aafec8ddb8b"
"checksum fuchsia-zircon 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "2e9763c69ebaae630ba35f74888db465e49e259ba1bc0eda7d06f4a067615d82"
"checksum fuchsia-zircon-sys 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "3dcaa9ae7725d12cdb85b3ad99a434db70b468c09ded17e012d86b5c1010f7a7"
"checksum getopts 0.2.17 (registry+https://github.com/rust-lang/crates.io-index)" = "b900c08c1939860ce8b54dc6a89e26e00c04c380fd0e09796799bd7f12861e05"
@ -766,6 +825,7 @@ dependencies = [
"checksum proc-macro2 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)" = "b16749538926f394755373f0dfec0852d79b3bd512a5906ceaeb72ee64a4eaa0"
"checksum pulldown-cmark 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "d6fdf85cda6cadfae5428a54661d431330b312bc767ddbc57adbedc24da66e32"
"checksum quick-error 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "eda5fe9b71976e62bc81b781206aaa076401769b2143379d3eb2118388babac4"
"checksum quote 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)" = "7a6e920b65c65f10b2ae65c831a81a073a89edd28c7cce89475bff467ab4167a"
"checksum quote 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "9949cfe66888ffe1d53e6ec9d9f3b70714083854be20fd5e271b232a017401e8"
"checksum rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "eba5f8cb59cc50ed56be8880a5c7b496bfd9bd26394e176bc67884094145c2c5"
"checksum redox_syscall 0.1.37 (registry+https://github.com/rust-lang/crates.io-index)" = "0d92eecebad22b767915e4d529f89f28ee96dbbf5a4810d2b844373f136417fd"
@ -792,7 +852,10 @@ dependencies = [
"checksum skeptic 0.13.2 (registry+https://github.com/rust-lang/crates.io-index)" = "c8431f8fca168e2db4be547bd8329eac70d095dff1444fee4b0fa0fabc7df75a"
"checksum smallvec 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)" = "03dab98ab5ded3a8b43b2c80751194608d0b2aa0f1d46cf95d1c35e192844aa7"
"checksum stable_deref_trait 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "15132e0e364248108c5e2c02e3ab539be8d6f5d52a01ca9bbf27ed657316f02b"
"checksum syn 0.11.11 (registry+https://github.com/rust-lang/crates.io-index)" = "d3b891b9015c88c576343b9b3e41c2c11a51c219ef067b264bd9c8aa9b441dad"
"checksum syn 0.13.1 (registry+https://github.com/rust-lang/crates.io-index)" = "91b52877572087400e83d24b9178488541e3d535259e04ff17a63df1e5ceff59"
"checksum synom 0.11.3 (registry+https://github.com/rust-lang/crates.io-index)" = "a393066ed9010ebaed60b9eafa373d4b1baac186dd7e008555b0f702b51945b6"
"checksum synstructure 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)" = "3a761d12e6d8dcb4dcf952a7a89b475e3a9d69e4a69307e01a470977642914bd"
"checksum tempdir 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)" = "15f2b5fb00ccdf689e0149d1b1b3c03fead81c2b37735d812fa8bddbbf41b6d8"
"checksum term 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)" = "fa63644f74ce96fbeb9b794f66aff2a52d601cbd5e80f4b97123e3899f4570f1"
"checksum term 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "5e6b677dd1e8214ea1ef4297f85dbcbed8e8cdddb561040cc998ca2551c37561"
@ -803,6 +866,7 @@ dependencies = [
"checksum ucd-util 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "fd2be2d6639d0f8fe6cdda291ad456e23629558d466e2789d2c3e9892bda285d"
"checksum unicode-segmentation 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a8083c594e02b8ae1654ae26f0ade5158b119bd88ad0e8227a5d8fcd72407946"
"checksum unicode-width 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "bf3a113775714a22dcb774d8ea3655c53a32debae63a063acc00a91cc586245f"
"checksum unicode-xid 0.0.4 (registry+https://github.com/rust-lang/crates.io-index)" = "8c1f860d7d29cf02cb2f3f359fd35991af3d30bac52c57d265a3c461074cb4dc"
"checksum unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "fc72304796d0818e357ead4e000d19c9c174ab23dc11093ac919054d20a6a7fc"
"checksum unreachable 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "382810877fe448991dfc7f0dd6e3ae5d58088fd0ea5e35189655f84e6814fa56"
"checksum utf8-ranges 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "662fab6525a98beff2921d7f61a39e7d59e0b425ebc7d0d9e66d316e55124122"

View file

@ -47,6 +47,7 @@ getopts = "0.2"
derive-new = "0.5"
cargo_metadata = "0.5.1"
rustc-ap-syntax = "110.0.0"
failure = "0.1.1"
[dev-dependencies]
assert_cli = "0.5"

View file

@ -15,6 +15,8 @@
#![deny(warnings)]
extern crate env_logger;
#[macro_use]
extern crate failure;
extern crate getopts;
#[macro_use]
extern crate log;
@ -24,9 +26,8 @@ extern crate serde_derive;
extern crate serde_json as json;
use std::collections::HashSet;
use std::error::Error;
use std::io::{self, BufRead};
use std::{env, fmt, process};
use std::{env, process};
use regex::Regex;
@ -35,31 +36,14 @@ use regex::Regex;
/// We only want to format rust files by default.
const DEFAULT_PATTERN: &str = r".*\.rs";
#[derive(Debug)]
#[derive(Fail, Debug)]
enum FormatDiffError {
IncorrectOptions(getopts::Fail),
IncorrectFilter(regex::Error),
IoError(io::Error),
}
impl fmt::Display for FormatDiffError {
fn fmt(&self, f: &mut fmt::Formatter) -> Result<(), fmt::Error> {
fmt::Display::fmt(self.cause().unwrap(), f)
}
}
impl Error for FormatDiffError {
fn description(&self) -> &str {
self.cause().unwrap().description()
}
fn cause(&self) -> Option<&Error> {
Some(match *self {
FormatDiffError::IoError(ref e) => e,
FormatDiffError::IncorrectFilter(ref e) => e,
FormatDiffError::IncorrectOptions(ref e) => e,
})
}
#[fail(display = "{}", _0)]
IncorrectOptions(#[cause] getopts::Fail),
#[fail(display = "{}", _0)]
IncorrectFilter(#[cause] regex::Error),
#[fail(display = "{}", _0)]
IoError(#[cause] io::Error),
}
impl From<getopts::Fail> for FormatDiffError {
@ -99,7 +83,7 @@ fn main() {
);
if let Err(e) = run(&opts) {
println!("{}", opts.usage(e.description()));
println!("{}", opts.usage(&format!("{}", e)));
process::exit(1);
}
}