Locate data dir on Linux and Windows

Cargo.lock

@@ -344,13 +344,20 @@ dependencies = [
  "percent-encoding",
 ]
 
+[[package]]
+name = "gdn"
+version = "0.0.0"
+dependencies = [
+ "directories",
+]
+
 [[package]]
 name = "gdn-cli"
 version = "0.0.0"
 dependencies = [
  "anyhow",
  "clap",
- "directories",
+ "gdn",
  "gix",
 ]
 

Cargo.toml

@@ -1,6 +1,6 @@
 [workspace]
 resolver = "2"
-members = ["gdn-cli"]
+members = ["gdn", "gdn-cli"]
 
 [workspace.package]
 version = "0.0.0"
@@ -10,6 +10,7 @@ edition = "2021"
 anyhow = "1.0.95"
 clap = { version = "4.5.26", features = ["derive", "deprecated"] }
 directories = "6.0.0"
+gdn = { path = "gdn" }
 gix = "0.69.1"
 
 [workspace.lints]

gdn-cli/Cargo.toml

@@ -6,7 +6,7 @@ edition = { workspace = true }
 [dependencies]
 anyhow = { workspace = true }
 clap = { workspace = true }
-directories = { workspace = true }
+gdn = { workspace = true }
 gix = { workspace = true }
 
 [lints]

gdn-cli/src/commands/init.rs

@@ -5,20 +5,22 @@ use clap::Parser;
 
 use crate::Environment;
 
-/// Initialize the note repository.
+/// Initialize a note repository.
 #[derive(Debug, Parser)]
-pub struct Command {}
+pub struct Command {
+    repo_name: String,
+}
 
 impl Command {
     pub fn run(self, env: &Environment) -> anyhow::Result<()> {
-        let directory = env.repo_dir();
+        let dir = env.paths.repo_dir(&self.repo_name);
 
-        fs::create_dir_all(&directory)
-            .with_context(|| format!("Failed to create directory {}", directory.display()))
+        fs::create_dir_all(&dir)
+            .with_context(|| format!("Failed to create directory {}", dir.display()))
             .context("Failed to initialize notes repo")?;
 
-        let repo = gix::init_bare(&directory)
-            .with_context(|| format!("Failed to initialize git repo at {}", directory.display()))
+        let repo = gix::init_bare(&dir)
+            .with_context(|| format!("Failed to initialize bare git repo at {}", dir.display()))
             .context("Failed to initialize notes repo")?;
 
         dbg!(repo);

gdn-cli/src/main.rs

@@ -3,7 +3,7 @@ mod commands;
 use std::path::PathBuf;
 
 use clap::Parser;
-use directories::ProjectDirs;
+use gdn::Paths;
 
 use crate::commands::Command;
 
@@ -19,34 +19,25 @@ struct Args {
 }
 
 struct Environment {
-    config_file: PathBuf,
-    data_dir: PathBuf,
-}
-
-impl Environment {
-    fn repo_dir(&self) -> PathBuf {
-        self.data_dir.join("notes.git")
-    }
+    paths: Paths,
 }
 
 fn main() {
     let args = Args::parse();
-    let dirs = ProjectDirs::from("de", "plugh", env!("CARGO_PKG_NAME")).unwrap();
 
-    let config_file = args
-        .config
-        .unwrap_or_else(|| dirs.config_dir().join("config.toml"));
-
-    let data_dir = dirs.data_dir().to_path_buf();
-
-    println!("Config file: {}", config_file.display());
-    println!("Data dir:    {}", data_dir.display());
-
-    let env = Environment {
-        config_file,
-        data_dir,
+    let paths = if cfg!(unix) {
+        Paths::on_linux().unwrap()
+    } else if cfg!(windows) {
+        Paths::on_windows().unwrap()
+    } else {
+        panic!("running on unsupported platform, only Linux and Windows are supported")
     };
 
+    println!("State file: {}", paths.state_file().display());
+    println!("Repos dir:  {}", paths.repos_dir().display());
+
+    let env = Environment { paths };
+
     if let Err(err) = args.cmd.run(&env) {
         println!();
         eprintln!("{err:?}");

gdn/Cargo.toml

@@ -0,0 +1,10 @@
+[package]
+name = "gdn"
+version = { workspace = true }
+edition = { workspace = true }
+
+[dependencies]
+directories.workspace = true
+
+[lints]
+workspace = true

gdn/src/lib.rs

@@ -0,0 +1,7 @@
+mod paths;
+
+pub use crate::paths::Paths;
+
+pub const PROPER_NAME: &str = "GedächtNAS";
+pub const TECHNICAL_NAME: &str = "gedaechtnas";
+pub const ABBREVIATED_NAME: &str = "gdn";

gdn/src/paths.rs

@@ -0,0 +1,27 @@
+use std::path::PathBuf;
+
+use directories::ProjectDirs;
+
+pub struct Paths(ProjectDirs);
+
+impl Paths {
+    pub fn on_linux() -> Option<Self> {
+        ProjectDirs::from("de", "plugh", crate::TECHNICAL_NAME).map(Self)
+    }
+
+    pub fn on_windows() -> Option<Self> {
+        ProjectDirs::from("de", "plugh", crate::PROPER_NAME).map(Self)
+    }
+
+    pub fn state_file(&self) -> PathBuf {
+        self.0.data_local_dir().join("state.json")
+    }
+
+    pub fn repos_dir(&self) -> PathBuf {
+        self.0.data_local_dir().join("repos")
+    }
+
+    pub fn repo_dir(&self, name: &str) -> PathBuf {
+        self.repos_dir().join(format!("{name}.git"))
+    }
+}