Use ANSI Escape sequences to produce a terminal-output if running in terminal

Cargo.lock

@@ -124,6 +124,7 @@ version = "0.1.0"
 dependencies = [
  "async-trait",
  "chrono",
+ "console",
  "dirs",
  "http",
  "parse_duration",
@@ -148,7 +149,20 @@ dependencies = [
  "num-traits",
  "serde",
  "wasm-bindgen",
- "windows-targets",
+ "windows-targets 0.48.5",
+]
+
+[[package]]
+name = "console"
+version = "0.15.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c926e00cc70edefdc64d3a5ff31cc65bb97a3460097762bd23afb4d8145fccf8"
+dependencies = [
+ "encode_unicode",
+ "lazy_static",
+ "libc",
+ "unicode-width",
+ "windows-sys 0.45.0",
 ]
 
 [[package]]
@@ -185,9 +199,15 @@ dependencies = [
  "libc",
  "option-ext",
  "redox_users",
- "windows-sys",
+ "windows-sys 0.48.0",
 ]
 
+[[package]]
+name = "encode_unicode"
+version = "0.3.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a357d28ed41a50f9c765dbfe56cbc04a64e53e5fc58ba79fbc34c10ef3df831f"
+
 [[package]]
 name = "encoding_rs"
 version = "0.8.33"
@@ -441,6 +461,12 @@ dependencies = [
  "wasm-bindgen",
 ]
 
+[[package]]
+name = "lazy_static"
+version = "1.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
+
 [[package]]
 name = "libc"
 version = "0.2.150"
@@ -493,7 +519,7 @@ checksum = "8f3d0b296e374a4e6f3c7b0a1f5a51d748a0d34c85e7dc48fc3fa9a87657fe09"
 dependencies = [
  "libc",
  "wasi",
- "windows-sys",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
@@ -679,7 +705,7 @@ dependencies = [
  "libc",
  "spin",
  "untrusted",
- "windows-sys",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
@@ -824,7 +850,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7b5fac59a5cb5dd637972e5fca70daf0523c9067fcdc4842f053dae04a18f8e9"
 dependencies = [
  "libc",
- "windows-sys",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
@@ -914,7 +940,7 @@ dependencies = [
  "pin-project-lite",
  "socket2 0.5.5",
  "tokio-macros",
- "windows-sys",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
@@ -1038,6 +1064,12 @@ dependencies = [
  "tinyvec",
 ]
 
+[[package]]
+name = "unicode-width"
+version = "0.1.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e51733f11c9c4f72aa0c160008246859e340b00807569a0da0e7a1079b27ba85"
+
 [[package]]
 name = "untrusted"
 version = "0.9.0"
@@ -1180,7 +1212,16 @@ version = "0.51.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f1f8cf84f35d2db49a46868f947758c7a1138116f7fac3bc844f43ade1292e64"
 dependencies = [
- "windows-targets",
+ "windows-targets 0.48.5",
+]
+
+[[package]]
+name = "windows-sys"
+version = "0.45.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "75283be5efb2831d37ea142365f009c02ec203cd29a3ebecbc093d52315b66d0"
+dependencies = [
+ "windows-targets 0.42.2",
 ]
 
 [[package]]
@@ -1189,7 +1230,22 @@ version = "0.48.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "677d2418bec65e3338edb076e806bc1ec15693c5d0104683f2efe857f61056a9"
 dependencies = [
- "windows-targets",
+ "windows-targets 0.48.5",
+]
+
+[[package]]
+name = "windows-targets"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e5180c00cd44c9b1c88adb3693291f1cd93605ded80c250a75d472756b4d071"
+dependencies = [
+ "windows_aarch64_gnullvm 0.42.2",
+ "windows_aarch64_msvc 0.42.2",
+ "windows_i686_gnu 0.42.2",
+ "windows_i686_msvc 0.42.2",
+ "windows_x86_64_gnu 0.42.2",
+ "windows_x86_64_gnullvm 0.42.2",
+ "windows_x86_64_msvc 0.42.2",
 ]
 
 [[package]]
@@ -1198,51 +1254,93 @@ version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9a2fa6e2155d7247be68c096456083145c183cbbbc2764150dda45a87197940c"
 dependencies = [
- "windows_aarch64_gnullvm",
+ "windows_aarch64_gnullvm 0.48.5",
- "windows_aarch64_msvc",
+ "windows_aarch64_msvc 0.48.5",
- "windows_i686_gnu",
+ "windows_i686_gnu 0.48.5",
- "windows_i686_msvc",
+ "windows_i686_msvc 0.48.5",
- "windows_x86_64_gnu",
+ "windows_x86_64_gnu 0.48.5",
- "windows_x86_64_gnullvm",
+ "windows_x86_64_gnullvm 0.48.5",
- "windows_x86_64_msvc",
+ "windows_x86_64_msvc 0.48.5",
 ]
 
+[[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "597a5118570b68bc08d8d59125332c54f1ba9d9adeedeef5b99b02ba2b0698f8"
+
 [[package]]
 name = "windows_aarch64_gnullvm"
 version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2b38e32f0abccf9987a4e3079dfb67dcd799fb61361e53e2882c3cbaf0d905d8"
 
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e08e8864a60f06ef0d0ff4ba04124db8b0fb3be5776a5cd47641e942e58c4d43"
+
 [[package]]
 name = "windows_aarch64_msvc"
 version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dc35310971f3b2dbbf3f0690a219f40e2d9afcf64f9ab7cc1be722937c26b4bc"
 
+[[package]]
+name = "windows_i686_gnu"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c61d927d8da41da96a81f029489353e68739737d3beca43145c8afec9a31a84f"
+
 [[package]]
 name = "windows_i686_gnu"
 version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a75915e7def60c94dcef72200b9a8e58e5091744960da64ec734a6c6e9b3743e"
 
+[[package]]
+name = "windows_i686_msvc"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "44d840b6ec649f480a41c8d80f9c65108b92d89345dd94027bfe06ac444d1060"
+
 [[package]]
 name = "windows_i686_msvc"
 version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8f55c233f70c4b27f66c523580f78f1004e8b5a8b659e05a4eb49d4166cca406"
 
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8de912b8b8feb55c064867cf047dda097f92d51efad5b491dfb98f6bbb70cb36"
+
 [[package]]
 name = "windows_x86_64_gnu"
 version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "53d40abd2583d23e4718fddf1ebec84dbff8381c07cae67ff7768bbf19c6718e"
 
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "26d41b46a36d453748aedef1486d5c7a85db22e56aff34643984ea85514e94a3"
+
 [[package]]
 name = "windows_x86_64_gnullvm"
 version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0b7b52767868a23d5bab768e390dc5f5c55825b6d30b86c844ff2dc7414044cc"
 
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9aec5da331524158c6d1a4ac0ab1541149c0b9505fde06423b02f5ef0106b9f0"
+
 [[package]]
 name = "windows_x86_64_msvc"
 version = "0.48.5"
@@ -1265,5 +1363,5 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "524e57b2c537c0f9b1e69f1965311ec12182b4122e45035b1508cd24d2adadb1"
 dependencies = [
  "cfg-if",
- "windows-sys",
+ "windows-sys 0.48.0",
 ]

Cargo.toml

@@ -9,6 +9,7 @@ members = ["parse_duration"]
 [dependencies]
 async-trait = "0.1"
 chrono = { version = "0.4", features = ["serde"] }
+console = "0.15"
 dirs = "5.0"
 reqwest = { version = "0.11", features = ["json", "rustls-tls"], default-features = false }
 serde = { version = "1.0", features = ["derive"] }

README.adoc

@@ -87,11 +87,15 @@ down = "#FF0000"
 
 The color configuration is optional. If used, all colors must be specified.
 
+Colors are not available if running in terminal mode.
+
 === Execute commands
 
 You can also specify a command to be executed when a mouse click occurs on a checked host.
 Use `click_cmd` to specify the command to be executed, e.g.
 
+This is not available if running in terminal mode.
+
 ----
 ...
 [[checks]]

src/checker/mod.rs

@@ -3,6 +3,7 @@ mod http;
 mod tcp;
 
 use async_trait::async_trait;
+use console::{style, Term};
 use std::fmt::{Display, Formatter, Result};
 
 use reqwest::Response;
@@ -28,6 +29,18 @@ pub struct CheckResult {
 
 impl Display for CheckResult {
     fn fmt(&self, f: &mut Formatter<'_>) -> Result {
+        if Term::stdout().is_term() {
+            return write!(
+                f,
+                "{}",
+                match &self.state {
+                    CheckState::Up => style(&self.name).green(),
+                    CheckState::Warn => style(&self.name).yellow(),
+                    CheckState::Down => style(&self.name).red(),
+                }
+            );
+        }
+
         let color_config = Config::read().colors;
         let color = match &self.state {
             CheckState::Up => color_config.up,

src/lib.rs

@@ -1,6 +1,8 @@
 mod checker;
 mod config;
 
+use console::{style, Term};
+use std::io::Write;
 use std::process;
 
 pub use config::{CheckConfig, Config};
@@ -25,8 +27,21 @@ pub struct ClickEvent {
 }
 
 pub async fn print_states(config: &Config) {
-    print!("[");
     let mut entries = vec![];
+    if Term::stdout().is_term() {
+        for check_config in &config.checks {
+            entries.push(format!("{}", check_host(check_config).await));
+        }
+        entries.push(
+            chrono::Local::now()
+                .format(config.time_format.as_str())
+                .to_string(),
+        );
+        println!("{}", entries.join(&style(" | ").black().to_string()));
+        return;
+    }
+
+    print!("[");
     for check_config in &config.checks {
         entries.push(format!("{}", check_host(check_config).await));
     }
@@ -53,7 +68,6 @@ pub async fn run_click_cmd(cmd: String) {
         .stdin(process::Stdio::piped())
         .spawn()
     {
-        use std::io::Write;
         let _ = child.stdin.as_mut().unwrap().write_all(cmd.as_bytes());
     };
 }

src/main.rs

@@ -1,18 +1,23 @@
 use checkbar::{get_click_cmd, print_states, read_click_event, run_click_cmd, Config, MouseButton};
+use console::Term;
 use serde_json::json;
 use tokio::task;
 use tokio::time::sleep;
 
 #[tokio::main(flavor = "multi_thread", worker_threads = 2)]
 async fn main() {
-    println!(
+    if Term::stdout().is_term() {
-        "{}",
+        let _ = Term::stdout().hide_cursor();
-        json!({
+    } else {
-            "version": 1,
+        println!(
-            "click_events": true
+            "{}",
-        })
+            json!({
-    );
+                "version": 1,
-    println!("[");
+                "click_events": true
+            })
+        );
+        println!("[");
+    }
 
     let inputs = task::spawn(async {
         loop {