drop Cargo usage

Converted Cargo usage to cargo_metadata so now drop out the last usage
which was marshalling the error to the user.

4 files changed, 3 insertions, 975 deletions

diff --git a/Cargo.lock b/Cargo.lock
index ed0ecd0..60a82cc 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,19 +1,6 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
 [[package]]
-name = "adler32"
-version = "1.0.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
-name = "aho-corasick"
-version = "0.7.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
 name = "ansi_term"
 version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -31,11 +18,6 @@ dependencies = [
 ]
 
 [[package]]
-name = "autocfg"
-version = "0.1.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
 name = "backtrace"
 version = "0.3.38"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -61,103 +43,9 @@ version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
-name = "bstr"
-version = "0.2.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "byteorder"
-version = "1.3.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
-name = "bytes"
-version = "0.4.12"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "iovec 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "bytesize"
-version = "1.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
-name = "c2-chacha"
-version = "0.2.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "ppv-lite86 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "cargo"
-version = "0.37.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "atty 0.2.13 (registry+https://github.com/rust-lang/crates.io-index)",
- "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "bytesize 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "clap 2.33.0 (registry+https://github.com/rust-lang/crates.io-index)",
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- "crates-io 0.25.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "crossbeam-utils 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "crypto-hash 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "curl 0.4.25 (registry+https://github.com/rust-lang/crates.io-index)",
- "curl-sys 0.4.23 (registry+https://github.com/rust-lang/crates.io-index)",
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- "jobserver 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)",
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- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
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- "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "miow 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
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- "opener 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-workspace-hack 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustfix 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
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- "tar 0.4.26 (registry+https://github.com/rust-lang/crates.io-index)",
- "tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "termcolor 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "toml 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "unicode-width 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "url_serde 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "walkdir 2.2.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
 name = "cargo-ebuild"
 version = "0.2.1-alpha.0"
 dependencies = [
- "cargo 0.37.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "cargo_metadata 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "failure 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "itertools 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -201,132 +89,11 @@ dependencies = [
 ]
 
 [[package]]
-name = "commoncrypto"
-version = "0.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "commoncrypto-sys 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
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-name = "commoncrypto-sys"
-version = "0.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
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-dependencies = [
- "core-foundation-sys 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "core-foundation-sys"
-version = "0.6.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
-name = "crates-io"
-version = "0.25.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "curl 0.4.25 (registry+https://github.com/rust-lang/crates.io-index)",
- "failure 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "http 0.1.18 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.101 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 1.0.101 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.41 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
-]
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- "openssl 0.10.25 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
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-
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-name = "curl"
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- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
- "openssl-probe 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "openssl-sys 0.9.51 (registry+https://github.com/rust-lang/crates.io-index)",
- "schannel 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
- "socket2 0.3.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
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-dependencies = [
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- "libz-sys 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)",
- "openssl-sys 0.9.51 (registry+https://github.com/rust-lang/crates.io-index)",
- "pkg-config 0.3.16 (registry+https://github.com/rust-lang/crates.io-index)",
- "vcpkg 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
 name = "either"
 version = "1.5.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
-name = "env_logger"
-version = "0.6.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "atty 0.2.13 (registry+https://github.com/rust-lang/crates.io-index)",
- "humantime 1.3.0 (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)",
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-
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 name = "failure"
 version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -347,117 +114,6 @@ dependencies = [
 ]
 
 [[package]]
-name = "filetime"
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-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
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-
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- "url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
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-
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@@ -466,83 +122,6 @@ dependencies = [
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-
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- "same-file 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "walkdir 2.2.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi-util 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
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-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "sized-chunks 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "typenum 1.11.2 (registry+https://github.com/rust-lang/crates.io-index)",
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-
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-dependencies = [
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-]
-
-[[package]]
 name = "itertools"
 version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -556,174 +135,11 @@ version = "0.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
-name = "jobserver"
-version = "0.1.17"
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diff --git a/Cargo.toml b/Cargo.toml
index af147cf..1254665 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -29,7 +29,6 @@ is-it-maintained-open-issues = { repository = "cardoe/cargo-ebuild" }
 maintenance = { status = "passively-maintained" }
 
 [dependencies]
-cargo = "^0.37"
 cargo_metadata = "^0.9"
 failure = "^0.1"
 itertools = "^0.8"
diff --git a/src/lib.rs b/src/lib.rs
index 6a112bd..bb296e7 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -8,9 +8,6 @@
  * except according to those terms.
  */
 
-extern crate cargo;
-extern crate time;
-
 mod metadata;
 
 use failure::format_err;
@@ -30,7 +27,7 @@ fn parse_license<'a>(lic_str: &'a str) -> Vec<&'a str> {
         .collect()
 }
 
-pub fn run(verbose: u32, quiet: bool, manifest_path: Option<PathBuf>) -> CliResult {
+pub fn run(verbose: u32, quiet: bool, manifest_path: Option<PathBuf>) -> Result<(), failure::Error> {
     let mut cmd = cargo_metadata::MetadataCommand::new();
 
     if let Some(path) = manifest_path {
diff --git a/src/main.rs b/src/main.rs
index 7999b8e..cca4d4a 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -8,14 +8,11 @@
  * except according to those terms.
  */
 
-extern crate cargo;
 extern crate cargo_ebuild;
 extern crate structopt;
 
-use cargo::util::CliError;
 use cargo_ebuild::run;
 use std::path::PathBuf;
-use std::process;
 use structopt::clap::AppSettings;
 use structopt::StructOpt;
 
@@ -52,17 +49,7 @@ fn main() {
 
     // run the actual code
     if let Err(e) = run(opt.verbose as u32, opt.quiet, opt.manifest_path) {
-        // break apart the error
-        let CliError {
-            error,
-            exit_code,
-            unknown: _unknown,
-        } = e;
-        // display a msg if we got one
-        if let Some(msg) = error {
-            eprintln!("{}", msg);
-        }
-        // exit appropriately
-        process::exit(exit_code);
+        eprintln!("{}", e);
+        ::std::process::exit(1);
     }
 }