Merge pull request #1 from NamedNeon/main

Terminal detection support, fix Darwin identification, and minor refactoring.

Cargo.lock

@@ -256,9 +256,9 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
-version = "0.2.139"
+version = "0.2.147"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "201de327520df007757c1f0adce6e827fe8562fbc28bfd9c15571c66ca1f5f79"
+checksum = "b4668fb0ea861c1df094127ac5f1da3409a82116a4ba74fca2e58ef927159bb3"
 
 [[package]]
 name = "link-cplusplus"
@@ -339,6 +339,7 @@ dependencies = [
  "chrono",
  "colored",
  "compound_duration",
+ "lazy_static",
  "quoted-string",
  "sysinfo",
  "whoami",

Cargo.toml

@@ -10,6 +10,7 @@ byte-unit = "4.0.18"
 chrono = "0.4.23"
 colored = "2.0.0"
 compound_duration = "1.2.0"
+lazy_static = "1.4.0"
 quoted-string = "0.6.1"
 sysinfo = "0.28.1"
 whoami = "1.3.0"
@@ -22,4 +23,4 @@ codegen-units = 1
 panic = "abort"
 
 [features]
-field-titles = []
+field-titles = []

README.md

@@ -18,7 +18,8 @@ OxideFetch can display all of the following information:
 - Operating system name, symbol, and matching color  
 - Kernel version  
 - Uptime  
-- Shell  
+- Shell
+- Terminal
 - CPU  
 - GPU  
 - Memory  
@@ -63,8 +64,7 @@ No weird quirks to report at this time.
 - Add host system name detection such as "Windows Subsystem for Linux", "IdeaPad 3", "Dell Optiplex", etc.  
 - Add package count/package manager detection  
 - Crosstest on more distributions to verify `sys.name()` outputs  
-#### Distant future:  
-- Add terminal emulator detection by walking up the process tree  
+#### Distant future:
 - More extensible user configuration for entry formatting  
 
 ### Changelog

src/main.rs

@@ -22,6 +22,8 @@ SOFTWARE.
 
 */
 
+mod terminal;
+
 use byte_unit::*;
 use chrono::*;
 use colored::*;
@@ -29,10 +31,11 @@ use compound_duration;
 use std::env;
 use sysinfo::*;
 use whoami;
+use crate::terminal::get_terminal;
 
 fn main() {
     // Generate system info struct
-    let sys_info = InformationStruct::new();
+    let sys_info = Information::new();
 
     // Format the date and time
     let datetime_formatted = format!(
@@ -41,12 +44,10 @@ fn main() {
         Utc::now().format("%H:%M %Y-%m-%d")
     );
 
-    println!();
-
     // TODO: Add support to change what items print, as well as their colors.
     // This should be done via some sort of user accessible, persistent config,
     // and preferably can be modified via env vars.
-    println!("{}", String::from(">>> OxideFetch  <<<").red());
+    println!("\n{}", String::from(">>> OxideFetch  <<<").red());
     color_print("Date:\t", '󰃰', &Some(datetime_formatted), "bright yellow");
     color_print(
         "Host:\t",
@@ -59,12 +60,16 @@ fn main() {
     color_print("Kernel:\t", '', &sys_info.kernel_ver, "bright blue");
     color_print("Uptime:\t", '', &Some(sys_info.uptime), "bright gray");
     color_print("Shell:\t", '', &sys_info.shell, "bright magenta");
+    color_print("Terminal:\t", '', &sys_info.terminal, "bright green");
     color_print("CPU:\t", '', &Some(sys_info.cpu), "green");
-    if let Some(gpus) = sys_info.gpu {
+
+    if sys_info.gpu.is_some() {
+        let gpus = sys_info.gpu.unwrap();
         for gpu in gpus {
             color_print("GPU:\t", '󰍹', &Some(gpu), "bright green")
         }
     }
+
     //color_print("GPU:\t", '', &sys_info.gpu, "bright green");
     color_print("Memory:\t", '󰍛', &Some(sys_info.memory), "bright blue");
 }
@@ -82,7 +87,7 @@ fn color_print(field_title: &str, icon: char, field: &Option<String>, color: &st
 }
 
 #[derive(Debug)]
-struct InformationStruct {
+struct Information {
     // Only fields whose setters can fail, are given Option<String> types.
     // Unsure if I should coerce these fields into an Option<String> *here*, or
     // within the args of color_print, since that function only accepts args of
@@ -94,7 +99,7 @@ struct InformationStruct {
     kernel_ver: Option<String>,
     uptime: String,
     shell: Option<String>,
-    _terminal: Option<String>,
+    terminal: Option<String>,
     cpu: String,
     gpu: Option<Vec<String>>,
     memory: String,
@@ -102,21 +107,31 @@ struct InformationStruct {
     color: String,
 }
 
-impl InformationStruct {
+impl Information {
     fn new() -> Self {
         let mut sys = System::new_all();
         sys.refresh_all();
+
+        let mut os_name = sys.name();
+
+        // Get full OS name for Darwin-based systems (i.e. macOS, iOS).
+        if os_name == Some("Darwin".to_string()) {
+            let long_os = sys.long_os_version();
+            if long_os.is_some() {
+                // Isolate system type from version information.
+                let long_os_split =
+                    long_os.unwrap().split_whitespace().collect::<Vec<&str>>()[0].to_string();
+
+                os_name = Some(long_os_split);
+            }
+        }
+
         Self {
             username: whoami::username(),
-
             hostname: whoami::hostname(),
-
-            os_name: sys.name(),
-
+            os_name: os_name.clone(),
             os_ver: sys.os_version(),
-
             kernel_ver: sys.kernel_version(),
-
             uptime: compound_duration::format_dhms(sys.uptime()),
 
             // Tracks the SHELL env var and trims the last item from the resultant fs path.
@@ -129,8 +144,7 @@ impl InformationStruct {
                 }
             },
 
-            _terminal: None, // TODO: Add terminal detection.
-
+            terminal: get_terminal(),
             cpu: String::from(sys.cpus()[0].brand()),
 
             gpu: {
@@ -198,8 +212,7 @@ impl InformationStruct {
                 Byte::from(sys.total_memory()).get_appropriate_unit(true)
             ),
 
-            icon: match sys
-                .name()
+            icon: match os_name
                 .unwrap_or(String::from("Unknown System"))
                 .as_ref()
             // Getting the icon for the distro.
@@ -226,7 +239,7 @@ impl InformationStruct {
                 "Windows" => '',
                 "Android" => '',
                 "iOS" => '',
-                "macOS" => '',
+                "MacOS" => '',
                 "Unknown System" => '?',
                 _ => {
                     if sys
@@ -270,13 +283,14 @@ impl InformationStruct {
 #[cfg(test)]
 mod test {
 
-    use crate::InformationStruct;
+    use crate::Information;
     use std::fs;
+    use crate::terminal::get_terminal;
 
     // Self explanatory.
     #[test]
     pub fn log_gathered_data() {
-        let sys_info = InformationStruct::new();
+        let sys_info = Information::new();
         let data_string = format!("{:#?}", sys_info);
         let result = fs::write("./test_output.txt", data_string);
 

src/terminal.rs

@@ -0,0 +1,162 @@
+use std::env;
+use std::collections::HashMap;
+use lazy_static::lazy_static;
+use sysinfo::{Pid, PidExt, ProcessExt, System, SystemExt};
+
+lazy_static! {
+    static ref PRETTY_NAMES: HashMap<&'static str, &'static str> = {
+        let mut m = HashMap::new();
+        m.insert("cmd", "Command Prompt");
+        m.insert("powershell", "PowerShell");
+        m.insert("konsole", "Konsole");
+        m.insert("gnome-terminal", "GNOME Terminal");
+        m.insert("xterm", "XTerm");
+        m.insert("xfce4-terminal", "XFCE Terminal");
+        m.insert("kitty", "KiTTY");
+        m.insert("alacritty", "Alacritty");
+        m
+    };
+}
+
+// Allows detection of shells that host themselves (i.e. Command Prompt).
+const SELF_HOSTED_SHELLS: [&str; 2] = [
+    "cmd.exe",
+    "powershell.exe"
+];
+
+macro_rules! match_env_to_terminal {
+    ($env: expr, $name: expr) => {
+        match env::var($env) {
+            Ok(_) => return Some($name.to_string()),
+            Err(_) => (),
+        };
+    }
+}
+
+pub fn get_terminal() -> Option<String> {
+    // Match Apple terminals.
+    match env::var("TERM_PROGRAM") {
+        Ok(f) => {
+            return match f.as_str() {
+                "iTerm.app" => Some("iTerm2".to_string()),
+                "Terminal.app" => Some("Apple Terminal".to_string()),
+                "Hyper.app" => Some("Hyper".to_string()),
+                _ => None,
+            };
+        }
+        Err(_) => (),
+    };
+
+    match_env_to_terminal!("ConEmuPID", "ConEmu");
+    match_env_to_terminal!("WT_SESSION", "Windows Terminal");
+    match_env_to_terminal!("SSH_CONNECTION", "SSH");
+    match_env_to_terminal!("tw52", "TosWin2");
+    match_env_to_terminal!("tw100", "TosWin2");
+
+    let mut pid = Pid::from_u32(std::process::id());
+    let shell = match env::var("SHELL") {
+        Ok(f) => f,
+        Err(_) => "".to_string(),
+    };
+    let shell_name = shell.split("/").last().unwrap();
+
+    let mut name: Option<String> = None;
+
+    let mut self_hosted = false;
+
+    // Get to the shell PID.
+    'find_shell: loop {
+        let ppid = pid_to_ppid(pid);
+
+        if ppid.is_none() { // We ran out of parents.
+            return None;
+        } else if ppid.unwrap().as_u32() == 1 { // We have reached the daemon.
+            return None;
+        }
+
+        pid = ppid.unwrap(); // It should be safe to unwrap the PPID now.
+
+        let pid_name = pid_to_name(pid);
+
+        if pid_name.is_none() {
+            continue;
+        }
+
+        let name_unwrapped = pid_name.unwrap();
+
+        // Detect self-hosted shells.
+        for shell in SELF_HOSTED_SHELLS {
+            if name_unwrapped == shell {
+                self_hosted = true;
+                name = Some(name_unwrapped);
+                break 'find_shell;
+            }
+        }
+
+        if name_unwrapped == shell.as_str() || name_unwrapped == shell_name {
+            name = Some(name_unwrapped);
+            break; // We found the shell.
+        }
+    }
+
+    if !self_hosted {
+        // Try to get parent once more.
+        match pid_to_ppid(pid) {
+            None => return None,
+            Some(f) => {
+                // Try to get name.
+                name = pid_to_name(f);
+            },
+        };
+    }
+
+    return match name {
+        Some(f) => {
+            // Remove the file extension.
+            let mut res = f.split(".").nth(0).unwrap().to_string();
+
+            // Try to get a "prettier name".
+            if PRETTY_NAMES.contains_key(res.as_str()) {
+                res = PRETTY_NAMES.get(res.as_str()).unwrap().to_string();
+            }
+
+            Some(res)
+        },
+        None => None,
+    }
+}
+
+fn pid_to_name(pid: Pid) -> Option<String> {
+    let mut system = System::new();
+    system.refresh_processes();
+
+    for process in system.processes() {
+        if *process.0 == pid {
+            return Some(process.1.name().to_string());
+        }
+    }
+
+    None
+}
+
+fn pid_to_ppid(pid: Pid) -> Option<Pid> {
+    let mut system = System::new();
+    system.refresh_processes();
+
+    for process in system.processes() {
+        // Check if the process in question is ours.
+        if *process.0 != pid {
+            continue;
+        }
+
+        // Check if it has a parent.
+        if process.1.parent().is_none() {
+            continue;
+        }
+
+        // Get the parent PID.
+        return Some(process.1.parent().unwrap());
+    }
+
+    None
+}