config

src/config.rs

@@ -0,0 +1,60 @@
+use std::fs::{File, OpenOptions};
+use std::io::{BufRead, BufReader, Result, Write};
+use gopher;
+
+pub const DIR: &str = "~/.config/phetch/";
+
+// Loads a file in the config directory for reading.
+pub fn load(filename: &str) -> Result<BufReader<File>> {
+    if let Some(dotdir) = path() {
+        let path = dotdir.join(filename);
+        if let Ok(file) = OpenOptions::new().read(true).open(&path) {
+            Ok(BufReader::new(file))
+        } else {
+            Err(error!("Couldn't open {:?}", path))
+        }
+    } else {
+        Err(error!("{} directory doesn't exist", DIR))
+    }
+}
+
+// Append a menu item as a line to a file in the config dir.
+pub fn append(filename: &str, label: &str, url: &str) {
+    if let Some(dotdir) = path() {
+        let filename = dotdir.join(filename);
+        if let Ok(mut file) = std::fs::OpenOptions::new()
+            .append(true)
+            .create(true)
+            .open(filename)
+    {
+        let (t, host, port, sel) = gopher::parse_url(&url);
+        file.write_all(
+            format!(
+                "{}{}\t{}\t{}\t{}\r\n",
+                gopher::char_for_type(t).unwrap_or('i'),
+                label,
+                sel,
+                host,
+                port
+            )
+            .as_ref(),
+        );
+    }
+}
+
+// PathBuf to config dir if it exists.
+// None if the config dir doesn't exist.
+pub fn path() -> Option<std::path::PathBuf> {
+    let homevar = std::env::var("HOME");
+    if homevar.is_err() {
+        return None;
+    }
+
+    let dotdir = DIR.replace('~', &homevar.unwrap());
+    let dotdir = std::path::Path::new(&dotdir);
+    if dotdir.exists() {
+        Some(std::path::PathBuf::from(dotdir))
+    } else {
+        None
+    }
+}