Add YAML formatter

src/formatters/yamlfmt.rs

@@ -0,0 +1,37 @@
+use crate::rfs::RfsScan;
+
+use super::stdfmt::DataFormatter;
+
+pub struct YAMLDataFormatter<'a> {
+    rfs: &'a RfsScan,
+}
+
+impl YAMLDataFormatter<'_> {}
+
+impl<'a> DataFormatter<'a> for YAMLDataFormatter<'_> {
+    fn format(&self) -> String {
+        let mut out = String::new();
+
+        for p in self.rfs.get_pkg_list() {
+            let pkl = self.rfs.get_pkg_license(p.to_owned());
+            out.push_str(format!("{}:\n", p).as_str());
+            if !pkl.get_id().is_empty() {
+                out.push_str(format!("    - {}\n", pkl.get_id()).as_str());
+            }
+            for l in pkl.get_other() {
+                if l.contains(' ') {
+                    out.push_str(format!("    - \"{}\"\n", l).as_str());
+                } else {
+                    out.push_str(format!("    - {}\n", l).as_str());
+                }
+            }
+        }
+
+        out.push_str("\n");
+        out
+    }
+
+    fn new(rfs: &'a RfsScan) -> Box<(dyn DataFormatter + 'a)> {
+        Box::new(YAMLDataFormatter { rfs })
+    }
+}

src/main.rs

@@ -11,6 +11,7 @@ use formatters::{
     csvfmt::CSVDataFormatter,
     stdfmt::{DataFormatter, FormatterType},
     txtfmt::TextDataFormatter,
+    yamlfmt::YAMLDataFormatter,
 };
 use rfs::RfsScan;
 
@@ -30,6 +31,7 @@ static VERSION: &str = "0.2";
 fn display_licences(rfs: &RfsScan, typ: FormatterType) -> String {
     let f: Box<dyn DataFormatter>;
     match typ {
+        FormatterType::YAML => f = YAMLDataFormatter::new(rfs),
         FormatterType::CSV => f = CSVDataFormatter::new(rfs),
         FormatterType::TEXT => f = TextDataFormatter::new(rfs),
     }