implemented support for running scripts

Cargo.lock

@@ -11,6 +11,56 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "anstream"
+version = "0.6.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8acc5369981196006228e28809f761875c0327210a891e941f4c683b3a99529b"
+dependencies = [
+ "anstyle",
+ "anstyle-parse",
+ "anstyle-query",
+ "anstyle-wincon",
+ "colorchoice",
+ "is_terminal_polyfill",
+ "utf8parse",
+]
+
+[[package]]
+name = "anstyle"
+version = "1.0.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "55cc3b69f167a1ef2e161439aa98aed94e6028e5f9a59be9a6ffb47aef1651f9"
+
+[[package]]
+name = "anstyle-parse"
+version = "0.2.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3b2d16507662817a6a20a9ea92df6652ee4f94f914589377d69f3b21bc5798a9"
+dependencies = [
+ "utf8parse",
+]
+
+[[package]]
+name = "anstyle-query"
+version = "1.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "79947af37f4177cfead1110013d678905c37501914fba0efea834c3fe9a8d60c"
+dependencies = [
+ "windows-sys 0.59.0",
+]
+
+[[package]]
+name = "anstyle-wincon"
+version = "3.0.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ca3534e77181a9cc07539ad51f2141fe32f6c3ffd4df76db8ad92346b003ae4e"
+dependencies = [
+ "anstyle",
+ "once_cell",
+ "windows-sys 0.59.0",
+]
+
 [[package]]
 name = "bitflags"
 version = "2.8.0"
@@ -29,6 +79,46 @@ version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "613afe47fcd5fac7ccf1db93babcb082c5994d996f20b8b159f2ad1658eb5724"
 
+[[package]]
+name = "clap"
+version = "4.5.38"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ed93b9805f8ba930df42c2590f05453d5ec36cbb85d018868a5b24d31f6ac000"
+dependencies = [
+ "clap_builder",
+ "clap_derive",
+]
+
+[[package]]
+name = "clap_builder"
+version = "4.5.38"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "379026ff283facf611b0ea629334361c4211d1b12ee01024eec1591133b04120"
+dependencies = [
+ "anstream",
+ "anstyle",
+ "clap_lex",
+ "strsim",
+]
+
+[[package]]
+name = "clap_derive"
+version = "4.5.32"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "09176aae279615badda0765c0c0b3f6ed53f4709118af73cf4655d85d1530cd7"
+dependencies = [
+ "heck",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "clap_lex"
+version = "0.7.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f46ad14479a25103f283c0f10005961cf086d8dc42205bb44c46ac563475dca6"
+
 [[package]]
 name = "clipboard-win"
 version = "5.4.0"
@@ -38,6 +128,12 @@ dependencies = [
  "error-code",
 ]
 
+[[package]]
+name = "colorchoice"
+version = "1.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5b63caa9aa9397e2d9480a9b13673856c78d8ac123288526c37d7839f2a86990"
+
 [[package]]
 name = "console"
 version = "0.15.11"
@@ -100,6 +196,7 @@ name = "fern"
 version = "0.1.0"
 dependencies = [
  "bitflags",
+ "clap",
  "glob",
  "insta",
  "nix",
@@ -114,6 +211,12 @@ version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a8d1add55171497b4705a648c6b583acafb01d58050a51727785f0b2c8e0a2b2"
 
+[[package]]
+name = "heck"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
+
 [[package]]
 name = "home"
 version = "0.5.11"
@@ -136,6 +239,12 @@ dependencies = [
  "similar",
 ]
 
+[[package]]
+name = "is_terminal_polyfill"
+version = "1.70.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7943c866cc5cd64cbc25b2e01621d07fa8eb2a1a23160ee81ce38704e97b8ecf"
+
 [[package]]
 name = "libc"
 version = "0.2.169"
@@ -339,6 +448,12 @@ version = "1.14.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7fcf8323ef1faaee30a44a340193b1ac6814fd9b7b4e88e9d4519a3e4abe1cfd"
 
+[[package]]
+name = "strsim"
+version = "0.11.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7da8b5736845d9f2fcb837ea5d9e2628564b3b043a70948a3f0b778838c5fb4f"
+
 [[package]]
 name = "syn"
 version = "2.0.98"

Cargo.toml

@@ -11,6 +11,7 @@ debug = true
 
 [dependencies]
 bitflags = "2.8.0"
+clap = { version = "4.5.38", features = ["derive"] }
 glob = "0.3.2"
 insta = "1.42.2"
 nix = { version = "0.29.0", features = ["uio", "term", "user", "hostname", "fs", "default", "signal", "process", "event", "ioctl"] }

src/fern.rs

@@ -23,10 +23,58 @@ use crate::parse::execute::exec_input;
 use crate::signal::sig_setup;
 use crate::state::source_rc;
 use crate::prelude::*;
+use clap::Parser;
+use state::write_vars;
 
+#[derive(Parser,Debug)]
+struct FernArgs {
+	script: Option<String>,
+
+	#[arg(trailing_var_arg = true)]
+	script_args: Vec<String>,
+
+	#[arg(long)]
+	version: bool
+}
 
 
 fn main() {
+	let args = FernArgs::parse();
+	if args.version {
+		println!("fern {}", env!("CARGO_PKG_VERSION"));
+		return;
+	}
+
+	if let Some(path) = args.script {
+		run_script(path, args.script_args);
+	} else {
+		fern_interactive();
+	}
+}
+
+fn run_script<P: AsRef<Path>>(path: P, args: Vec<String>) {
+	let path = path.as_ref();
+	if !path.is_file() {
+		eprintln!("fern: Failed to open input file: {}", path.display());
+		exit(1);
+	}
+	let Ok(input) = fs::read_to_string(path) else {
+		eprintln!("fern: Failed to read input file: {}", path.display());
+		exit(1);
+	};
+
+	write_vars(|v| v.bpush_arg(path.to_string_lossy().to_string()));
+	for arg in args {
+		write_vars(|v| v.bpush_arg(arg))
+	}
+
+	if let Err(e) = exec_input(input) {
+		eprintln!("{e}");
+		exit(1);
+	}
+}
+
+fn fern_interactive() {
 	save_termios();
 	set_termios();
 	sig_setup();
@@ -59,5 +107,4 @@ fn main() {
 			eprintln!("{e}");
 		}
 	}
-	exit(1);
 }