48 lines
1.2 KiB
Rust
48 lines
1.2 KiB
Rust
use std::path::PathBuf;
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use rustyline::{Editor, history::FileHistory};
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fn xdg_state_dir() -> Option<PathBuf> {
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if let Ok(dir) = std::env::var("XDG_STATE_DIR") {
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Some(PathBuf::from(dir))
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} else if let Ok(home) = std::env::var("HOME") {
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if home.is_empty() {
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None
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} else {
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Some(PathBuf::from(home).join(".local/state"))
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}
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} else {
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None
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}
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}
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fn state_dir() -> Option<PathBuf> {
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if let Some(dir) = xdg_state_dir() {
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let dir = dir.join("osdb");
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std::fs::create_dir_all(&dir).ok()?;
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Some(dir)
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} else {
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None
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}
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}
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pub fn history_file() -> Option<std::path::PathBuf> {
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if let Some(state) = state_dir() {
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Some(state.join("cli_history"))
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} else {
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eprintln!("Warning: failed to find or create XDG_STATE_DIR for osdb.");
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eprintln!(
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"Warning: either set XDG_STATE_DIR or HOME, and ensure osdb has write permissions to that directory."
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);
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None
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}
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}
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pub fn read_input(rl: &mut Editor<(), FileHistory>) -> Option<String> {
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if let Ok(result) = rl.readline("osdb> ") {
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let _ = rl.add_history_entry(&result);
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Some(result)
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} else {
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None
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}
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}
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