added exit_no_std and better builds

.cargo/config.toml

@@ -0,0 +1,10 @@
+[unstable]
+build-std = [ "std", "panic_abort" ]
+build-std-features = [ "panic_immediate_abort" ]
+
+[profile.release]
+strip = true  # strip symbols from the binary
+opt-level = "z" # optimize for size
+lto = true # link time optimization
+codegen-units = 1 # decrease parallelization
+panic = "abort"

Cargo.lock

@@ -2,6 +2,29 @@
 # It is not intended for manual editing.
 version = 3
 
+[[package]]
+name = "exit-no-std"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4a608ccc67fac78c1916aa88ad75d6f6a3e353521844abce906c22a45d161d99"
+dependencies = [
+ "libc",
+ "pc-ints",
+ "winapi",
+]
+
+[[package]]
+name = "libc"
+version = "0.2.138"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "db6d7e329c562c5dfab7a46a2afabc8b987ab9a4834c9d1ca04dc54c1546cef8"
+
+[[package]]
+name = "pc-ints"
+version = "0.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "422b0cc3a966f6e0987d2f948c234585bd917a1f16df1470e60c56ad6de2c085"
+
 [[package]]
 name = "serde"
 version = "1.0.148"
@@ -12,6 +35,7 @@ checksum = "e53f64bb4ba0191d6d0676e1b141ca55047d83b74f5607e6d8eb88126c52c2dc"
 name = "tomcat"
 version = "0.0.1"
 dependencies = [
+ "exit-no-std",
  "toml",
 ]
 
@@ -23,3 +47,25 @@ checksum = "8d82e1a7758622a465f8cee077614c73484dac5b836c02ff6a40d5d1010324d7"
 dependencies = [
  "serde",
 ]
+
+[[package]]
+name = "winapi"
+version = "0.3.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
+dependencies = [
+ "winapi-i686-pc-windows-gnu",
+ "winapi-x86_64-pc-windows-gnu",
+]
+
+[[package]]
+name = "winapi-i686-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
+
+[[package]]
+name = "winapi-x86_64-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"

Cargo.toml

@@ -6,11 +6,5 @@ license = "AGPL-3.0-or-later"
 authors = [ "Emma Tebibyte <emma@tebibyte.media>" ]
 
 [dependencies]
+exit-no-std = "0.1.3"
 toml = "0.5.9"
-
-[profile.release]
-strip = true  # strip symbols from the binary
-opt-level = "z" # optimize for size
-lto = true # link time optimization
-codegen-units = 1 # decrease parallelization
-panic = "abort"

rust-toolchain.toml

@@ -0,0 +1,2 @@
+[toolchain]
+channel = "nightly"

src/main.rs

@@ -19,7 +19,7 @@ use std::env;
 use std::fs::File;
 use std::io::Read;
 use std::path::Path;
-use std::process;
+use exit_no_std::exit;
 use std::str::FromStr;
 
 use toml::Value;
@@ -29,7 +29,7 @@ fn main() {
   let argv0 = arguments.remove(0);
   if arguments[1].is_empty() {
     eprintln!("Usage: {} [table...].[value[index]] [file...]", argv0);
-    process::exit(64); // sysexits(3) EX_USAGE
+    exit(64); // sysexits(3) EX_USAGE
   }
   let input = &arguments[1];
   let mut content = String::new();
@@ -53,7 +53,7 @@ fn main() {
           Ok(i) => index = i,
           Err(_) => {
             eprintln!("{}: {}: Cannot index by given value.", argv0, istr);
-            process::exit(65); // sysexits(3) EX_DATAERR
+            exit(64); // sysexits(3) EX_USAGE
           },
         };
       }
@@ -75,7 +75,7 @@ fn main() {
             match valiter.peek() {
               Some(_) => {
                 eprintln!("{}: {}: Not a table.", argv0, item);
-                process::exit(65); // sysexits(3) EX_DATAERR
+                exit(65); // sysexits(3) EX_DATAERR
               },
               None => { 
                 match array.get(index) {
@@ -86,7 +86,7 @@ fn main() {
                         eprintln!(
                           "{}: {:?}: No value at given index.", argv0, index
                         );
-                        process::exit(65); // sysexits(3) EX_DATAERR
+                        exit(65); // sysexits(3) EX_DATAERR
                       },
                     };
                   },
@@ -94,7 +94,7 @@ fn main() {
                     eprintln!(
                       "{}: {:?}: No value at given index.", argv0, index
                     );
-                    process::exit(65); // sysexits(3) EX_DATAERR
+                    exit(65); // sysexits(3) EX_DATAERR
                   },
                 };
               },
@@ -108,7 +108,7 @@ fn main() {
             match valiter.peek() {
               Some(_) => {
                 eprintln!("{}: {}: Not a table.", argv0, item);
-                process::exit(65); // sysexits(3) EX_DATAERR
+                exit(65); // sysexits(3) EX_DATAERR
               },
               None => out.push_str(string.as_str()),
             };
@@ -125,7 +125,7 @@ fn main() {
       },
       None => {
         eprintln!("{}: {}: No such table or key.", argv0, item);
-        process::exit(65); // sysexits(3) EX_DATAERR
+        exit(65); // sysexits(3) EX_DATAERR
       },
     };
   }