feat(cli): add functionality to cli

added implementations of "add" "use" and "list"

Cargo.lock

@@ -52,6 +52,12 @@ dependencies = [
  "windows-sys",
 ]
 
+[[package]]
+name = "cfg-if"
+version = "1.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9330f8b2ff13f34540b44e946ef35111825727b38d33286ef986142615121801"
+
 [[package]]
 name = "clap"
 version = "4.6.6"
@@ -98,11 +104,44 @@ version = "1.0.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1d07550c9036bf2ae0c684c4297d503f838287c83c53686d05370d0e139ae570"
 
+[[package]]
+name = "dirs"
+version = "6.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c3e8aa94d75141228480295a7d0e7feb620b1a5ad9f12bc40be62411e38cce4e"
+dependencies = [
+ "dirs-sys",
+]
+
+[[package]]
+name = "dirs-sys"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e01a3366d27ee9890022452ee61b2b63a67e6f13f58900b651ff5665f0bb1fab"
+dependencies = [
+ "libc",
+ "option-ext",
+ "redox_users",
+ "windows-sys",
+]
+
+[[package]]
+name = "getrandom"
+version = "0.2.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ff2abc00be7fca6ebc474524697ae276ad847ad0a6b3faa4bcb027e9a4614ad0"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "wasi",
+]
+
 [[package]]
 name = "git-su"
 version = "0.1.0"
 dependencies = [
  "clap",
+ "dirs",
  "serde",
  "serde_json",
 ]
@@ -125,6 +164,21 @@ version = "1.0.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8f42a60cbdf9a97f5d2305f08a87dc4e09308d1276d28c869c684d7777685682"
 
+[[package]]
+name = "libc"
+version = "0.2.189"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3eaf3ede3fee6db1a4c2ee091bf8a8b4dccdc6d17f656fb07896ee72867612f2"
+
+[[package]]
+name = "libredox"
+version = "0.1.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d7955dfc218a8afb29dfeffd540e3a6e96baeb94fe7138228dd7cc6937fbbf96"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "memchr"
 version = "2.8.3"
@@ -137,6 +191,12 @@ version = "1.70.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "384b8ab6d37215f3c5301a95a4accb5d64aa607f1fcb26a11b5303878451b4fe"
 
+[[package]]
+name = "option-ext"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "04744f49eae99ab78e0d5c0b603ab218f515ea8cfe5a456d7629ad883a3b6e7d"
+
 [[package]]
 name = "proc-macro2"
 version = "1.0.107"
@@ -155,6 +215,17 @@ dependencies = [
  "proc-macro2",
 ]
 
+[[package]]
+name = "redox_users"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a4e608c6638b9c18977b00b475ac1f28d14e84b27d8d42f70e0bf1e3dec127ac"
+dependencies = [
+ "getrandom",
+ "libredox",
+ "thiserror",
+]
+
 [[package]]
 name = "serde"
 version = "1.0.229"
@@ -215,6 +286,26 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "thiserror"
+version = "2.0.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ec86235f5fcc2a73650310756d2ac5b138a5780bbbdfae3eeccec992c435ba4f"
+dependencies = [
+ "thiserror-impl",
+]
+
+[[package]]
+name = "thiserror-impl"
+version = "2.0.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bc04cd3e1236dd4a98afca4569f2deb3f120e5422a4023be2cb683f8486292af"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "unicode-ident"
 version = "1.0.24"
@@ -227,6 +318,12 @@ version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "06abde3611657adf66d383f00b093d7faecc7fa57071cce2578660c9f1010821"
 
+[[package]]
+name = "wasi"
+version = "0.11.1+wasi-snapshot-preview1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ccf3ec651a847eb01de73ccad15eb7d99f80485de043efb2f370cd654f4ea44b"
+
 [[package]]
 name = "windows-link"
 version = "0.2.1"

Cargo.toml

@@ -5,5 +5,6 @@ edition = "2024"
 
 [dependencies]
 clap = { version = "4.6.6", features = ["derive"] }
+dirs = "6.0.0"
 serde = { version = "1.0.229", features = ["derive"] }
 serde_json = "1.0.151"

src/cli.rs

@@ -4,7 +4,7 @@ use clap::{Args, Parser, Subcommand};
 #[command(version, about = "a cli to change git users")]
 pub struct Cli {
     #[command(subcommand)]
-    command: Commands,
+    pub command: Commands,
 }
 
 #[derive(Debug, Subcommand)]

src/config.rs

@@ -0,0 +1,51 @@
+use std::{
+    fs::{self, File},
+    io::{BufReader, BufWriter, Error},
+    path::{Path, PathBuf},
+};
+
+use serde::{Deserialize, Serialize};
+
+#[derive(Debug, Serialize, Deserialize)]
+pub struct Profile {
+    pub name: String,
+    pub username: String,
+    pub email: String,
+}
+
+fn get_config_dir() -> PathBuf {
+    let mut config_dir = dirs::config_dir().expect("unable to find config dir");
+    config_dir.push("git-su");
+    config_dir
+}
+
+fn create_if_missing(file: &Path, content: &str) -> Result<(), Error> {
+    if !file.exists() {
+        fs::write(file, content)
+    } else {
+        Ok(())
+    }
+}
+
+pub fn get_profile_list() -> Result<Vec<Profile>, String> {
+    let config_dir = get_config_dir();
+    fs::create_dir_all(&config_dir).expect("unable to create config directory");
+    let profile_file = config_dir.join("profiles.json");
+    create_if_missing(profile_file.as_path(), "[]").expect("unable to create profile file");
+    let profile_file = File::open(&profile_file).expect("unable to open profile file");
+    let reader = BufReader::new(profile_file);
+    Ok(
+        serde_json::from_reader::<BufReader<File>, Vec<Profile>>(reader)
+            .expect("unable to parse json"),
+    )
+}
+
+pub fn write_profile_list(profiles: Vec<Profile>) -> Result<(), String> {
+    let config_dir = get_config_dir();
+    fs::create_dir_all(&config_dir).expect("unable to create config directory");
+    let profile_file = config_dir.join("profiles.json");
+    let profile_file = File::create(&profile_file).expect("unable to create profile file");
+    let writer = BufWriter::new(profile_file);
+    serde_json::to_writer_pretty(writer, &profiles).expect("unable to write json");
+    Ok(())
+}

src/main.rs

@@ -1,8 +1,53 @@
 use clap::Parser;
 
+use crate::cli::Commands;
+use crate::config::Profile;
+
 mod cli;
+mod config;
+mod utils;
 
 fn main() {
     let args = cli::Cli::parse();
-    println!("{:?}", args);
+
+    match args.command {
+        Commands::List => {
+            let profiles = config::get_profile_list().expect("unable to get list of profiles");
+            if profiles.is_empty() {
+                println!("no profiles found");
+                return;
+            }
+
+            println!("{:<15} {:<20} {:<25}", "profile", "name", "email");
+            for profile in profiles {
+                println!(
+                    "{:<15} {:<20} {:<25}",
+                    profile.name, profile.username, profile.email
+                );
+            }
+        }
+        Commands::Use(args) => {
+            let profiles = config::get_profile_list().expect("unable to get list of profiles");
+            let profile = profiles.iter().find(|p| p.name == args.profile_name);
+            if profile.is_none() {
+                println!("profile not found");
+                return;
+            }
+
+            let profile = profile.unwrap();
+            let global = if args.global { "--global" } else { "" };
+            utils::run_command("git", &["config", "user.name", &profile.username, global]);
+            utils::run_command("git", &["config", "user.email", &profile.email, global]);
+        }
+        Commands::Add(args) => {
+            let mut profiles = config::get_profile_list().expect("unable to get list of profiles");
+            profiles.push(Profile {
+                name: args.profile_name,
+                username: args.name,
+                email: args.email,
+            });
+            config::write_profile_list(profiles).expect("unable to write profile file");
+            println!("profile added")
+        }
+    }
 }

src/utils.rs

@@ -0,0 +1,10 @@
+use std::process::Command;
+
+pub fn run_command(command: &str, args: &[&str]) {
+    let mut child = Command::new(command)
+        .args(args)
+        .spawn()
+        .expect("failed to execute process");
+
+    let _ = child.wait().expect("failed to wait on child");
+}