Remove structopt

There are 3 options, so structopt is an unnecessary dependency

3 files changed, 25 insertions, 79 deletions

diff --git a/Cargo.lock b/Cargo.lock
index 3318e9d..fd8da7f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -71,20 +71,11 @@ dependencies = [
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.103 (registry+https://github.com/rust-lang/crates.io-index)",
- "structopt 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "toml 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "wait-timeout 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
-name = "heck"
-version = "0.3.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "unicode-segmentation 1.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
 name = "humantime"
 version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -116,16 +107,6 @@ version = "2.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
-name = "proc-macro-error"
-version = "0.2.6"
-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 = "proc-macro2"
 version = "1.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -183,27 +164,6 @@ version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
-name = "structopt"
-version = "0.3.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "clap 2.33.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "structopt-derive 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
-[[package]]
-name = "structopt-derive"
-version = "0.3.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "heck 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "proc-macro-error 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "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 = "syn"
 version = "1.0.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -246,11 +206,6 @@ dependencies = [
 ]
 
 [[package]]
-name = "unicode-segmentation"
-version = "1.6.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
-[[package]]
 name = "unicode-width"
 version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -317,13 +272,11 @@ dependencies = [
 "checksum cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)" = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"
 "checksum clap 2.33.0 (registry+https://github.com/rust-lang/crates.io-index)" = "5067f5bb2d80ef5d68b4c87db81601f0b75bca627bc2ef76b141d7b846a3c6d9"
 "checksum env_logger 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)" = "44533bbbb3bb3c1fa17d9f2e4e38bbbaf8396ba82193c4cb1b6445d711445d36"
-"checksum heck 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "20564e78d53d2bb135c343b3f47714a56af2061f1c928fdb541dc7b9fdd94205"
 "checksum humantime 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "df004cfca50ef23c36850aaaa59ad52cc70d0e90243c3c7737a4dd32dc7a3c4f"
 "checksum lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 "checksum libc 0.2.65 (registry+https://github.com/rust-lang/crates.io-index)" = "1a31a0627fdf1f6a39ec0dd577e101440b7db22672c0901fe00a9a6fbb5c24e8"
 "checksum log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)" = "14b6052be84e6b71ab17edffc2eeabf5c2c3ae1fdb464aae35ac50c67a44e1f7"
 "checksum memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "88579771288728879b57485cc7d6b07d648c9f0141eb955f8ab7f9d45394468e"
-"checksum proc-macro-error 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)" = "aeccfe4d5d8ea175d5f0e4a2ad0637e0f4121d63bd99d356fb1f39ab2e7c6097"
 "checksum proc-macro2 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)" = "9c9e470a8dc4aeae2dee2f335e8f533e2d4b347e1434e5671afc49b054592f27"
 "checksum quick-error 1.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "9274b940887ce9addde99c4eee6b5c44cc494b182b97e73dc8ffdcb3397fd3f0"
 "checksum quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "053a8c8bcc71fcce321828dc897a98ab9760bef03a4fc36693c231e5b3216cfe"
@@ -332,14 +285,11 @@ dependencies = [
 "checksum serde 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)" = "0c4b39bd9b0b087684013a792c59e3e07a46a01d2322518d8a1104641a0b1be0"
 "checksum serde_derive 1.0.103 (registry+https://github.com/rust-lang/crates.io-index)" = "a8c6faef9a2e64b0064f48570289b4bf8823b7581f1d6157c1b52152306651d0"
 "checksum strsim 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "8ea5119cdb4c55b55d432abb513a0429384878c15dde60cc77b1c99de1a95a6a"
-"checksum structopt 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "30b3a3e93f5ad553c38b3301c8a0a0cec829a36783f6a0c467fc4bf553a5f5bf"
-"checksum structopt-derive 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "ea692d40005b3ceba90a9fe7a78fa8d4b82b0ce627eebbffc329aab850f3410e"
 "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 thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "c6b53e329000edc2b34dbe8545fd20e55a333362d0a321909685a19bd28c3f1b"
 "checksum toml 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)" = "01d1404644c8b12b16bfcffa4322403a91a451584daaaa7c28d3152e6cbc98cf"
-"checksum unicode-segmentation 1.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e83e153d1053cbb5a118eeff7fd5be06ed99153f00dbcd8ae310c5fb2b22edc0"
 "checksum unicode-width 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "7007dbd421b92cc6e28410fe7362e2e0a2503394908f417b68ec8d1c364c4e20"
 "checksum unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "826e7639553986605ec5979c7dd957c7895e93eabed50ab2ffa7f6128a75097c"
 "checksum vec_map 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)" = "05c78687fb1a80548ae3250346c3db86a80a7cdd77bda190189f2d0a0987c81a"
diff --git a/Cargo.toml b/Cargo.toml
index 16893da..937517b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -7,7 +7,6 @@ edition = "2018"
 
 [dependencies]
 clap = "2.33"
-structopt = "0.3"
 serde = "1"
 toml = "0.5"
 serde_derive = "1"
diff --git a/src/main.rs b/src/main.rs
index de12b5c..a77500c 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,44 +1,41 @@
 extern crate lazy_static;
 
-use clap::AppSettings;
-use structopt::StructOpt;
+use clap::{ AppSettings, App, Arg };
 use env_logger;
 use log::{ trace, error };
 
 mod conf;
 mod backends;
 
-#[derive(StructOpt, Debug)]
-#[structopt(
-    name = "evr",
-    version = "0.1",
-    author = "by syn",
-    global_settings = &[
-        AppSettings::ColoredHelp,
-        AppSettings::UnifiedHelpMessage
-    ],
-)]
-struct EVROpts {
-    /// source filename
-    #[structopt(long, index = 1)]
-    src: String,
-
-    /// show time (wall)
-    #[structopt(short, long)]
-    time: bool,
-    
-    /// show mem usage (rss)
-    #[structopt(short, long)]
-    mem: bool
-}
-
 fn main() {
-    let opts = EVROpts::from_args();
+    let matches = App::new("evr")
+        .version("0.1")
+        .author("syn")
+        .setting(AppSettings::ColoredHelp)
+        .setting(AppSettings::UnifiedHelpMessage)
+        .arg(Arg::with_name("src")
+            .required(true)
+            .index(1)
+            .help("source file")
+        )
+        .arg(Arg::with_name("time")
+            .short("t")
+            .long("time")
+            .help("show wall time")
+        )
+        .arg(Arg::with_name("mem")
+            .short("m")
+            .long("mem")
+            .help("show mem usage (rss)")
+        )
+        .get_matches();
+
+
     env_logger::builder()
         .format_timestamp(None)
         .init();
 
-    let src_path: std::path::PathBuf = opts.src.into();
+    let src_path: std::path::PathBuf = matches.value_of("src").expect("src is required").into();
     let config = conf::get_conf();
 
     let result =