feat: add flag --list-fonts

See Aloxaf#132
conradludgate · Nov 21, 2020 · a767a83 · a767a83
1 parent c1abc51
commit a767a83
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Showing 2 changed files with 14 additions and 3 deletions.
diff --git a/src/bin.rs b/src/bin.rs
@@ -90,6 +90,12 @@ fn run() -> Result<(), Error> {
             println!("{}", i);
         }
         return Ok(());
+    } else if config.list_fonts {
+        let source = font_kit::source::SystemSource::new();
+        for font in source.all_families().unwrap_or_default() {
+            println!("{}", font);
+        }
+        return Ok(());
     }
 
     let (syntax, code) = config.get_source_code(&ps)?;

diff --git a/src/config.rs b/src/config.rs
@@ -56,8 +56,9 @@ type Lines = Vec<u32>;
 #[structopt(name = "silicon")]
 pub struct Config {
     /// Background image
-    #[structopt(long, conflicts_with = "background")]
+    #[structopt(long, value_name = "IMAGE", conflicts_with = "background")]
     pub background_image: Option<PathBuf>,
+
     /// Background color of the image
     #[structopt(
         long,
@@ -76,7 +77,7 @@ pub struct Config {
     #[structopt(value_name = "FILE", parse(from_os_str))]
     pub file: Option<PathBuf>,
 
-    /// The font list. eg. 'Hack; SimSun=31'
+    /// The fallback font list. eg. 'Hack; SimSun=31'
     #[structopt(long, short, value_name = "FONT", parse(from_str = parse_font_str))]
     pub font: Option<FontList>,
 
@@ -100,12 +101,16 @@ pub struct Config {
     #[structopt(long)]
     pub list_themes: bool,
 
+    /// List all available fonts in your system
+    #[structopt(long)]
+    pub list_fonts: bool,
+
     /// Write output image to specific location instead of cwd.
     #[structopt(
         short,
         long,
         value_name = "PATH",
-        required_unless_one = &["list-themes", "to-clipboard"]
+        required_unless_one = &["list-fonts", "list-themes", "to-clipboard"]
     )]
     pub output: Option<PathBuf>,