59 lines
1.6 KiB
Rust
59 lines
1.6 KiB
Rust
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use std::{env, ffi::OsString, fs};
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const ICON_FILE_EXTENSION: &'static str = ".svg";
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pub const ICON_FILE_EXTENSION_LEN: usize = ICON_FILE_EXTENSION.len();
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pub struct Icons {
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icons_dir_path: String,
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icon_filenames: Vec<OsString>,
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}
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impl Icons {
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/// Build the Icons (handler) struct
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///
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/// Returns a result with the Icons struct or an error message
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pub fn build() -> Result<Self, &'static str> {
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let icons_dir_arg = env::args()
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.nth(1)
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.unwrap_or(String::from("vendor/lucide/icons"));
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let icon_dir = match fs::read_dir(&icons_dir_arg) {
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Ok(dir) => dir,
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Err(_) => return Err("Failed to read icon directory"),
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};
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let icon_filenames: Vec<_> = icon_dir
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.map(|entry| entry.unwrap().file_name())
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.filter(|entry| entry.to_str().unwrap_or("").ends_with(".svg"))
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.collect();
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Ok(Icons {
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icons_dir_path: icons_dir_arg,
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icon_filenames,
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})
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}
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pub fn has_filename(&self, icon: &str) -> bool {
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self.icon_filenames.contains(&OsString::from(icon))
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}
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pub fn has_iconname(&self, icon: &str) -> bool {
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self.icon_filenames
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.iter()
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.find(|&i| match i.to_str() {
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Some(i) => &i[..i.len() - ICON_FILE_EXTENSION_LEN] == icon,
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None => false,
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})
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.is_some()
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}
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pub fn icons_len(&self) -> usize {
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self.icon_filenames.len()
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}
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pub fn get_icon(&self, icon: &str) -> Option<Vec<u8>> {
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let icon_path = format!("{}/{}.svg", self.icons_dir_path, icon);
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fs::read(icon_path).ok()
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}
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}
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