resources: Hidden subcommand to list internal resources

Signed-off-by: Daniel Silverstone <dsilvers@digital-scurf.org>

2 files changed, 24 insertions, 0 deletions

diff --git a/src/bin/subplot.rs b/src/bin/subplot.rs
index d4685da..b8524e1 100644
--- a/src/bin/subplot.rs
+++ b/src/bin/subplot.rs
@@ -55,6 +55,7 @@ enum Cmd {
     Metadata(Metadata),
     Docgen(Docgen),
     Codegen(Codegen),
+    Resources(Resources),
 }
 
 impl Cmd {
@@ -65,6 +66,7 @@ impl Cmd {
             Cmd::Metadata(m) => m.run(),
             Cmd::Docgen(d) => d.run(),
             Cmd::Codegen(c) => c.run(),
+            Cmd::Resources(r) => r.run(),
         }
     }
 
@@ -75,6 +77,7 @@ impl Cmd {
             Cmd::Metadata(m) => m.doc_path(),
             Cmd::Docgen(d) => d.doc_path(),
             Cmd::Codegen(c) => c.doc_path(),
+            Cmd::Resources(r) => r.doc_path(),
         }
     }
 }
@@ -107,6 +110,22 @@ fn long_version() -> Result<String> {
 }
 
 #[derive(Debug, StructOpt)]
+/// Examine embedded resources built into Subplot
+#[structopt(setting = structopt::clap::AppSettings::Hidden)]
+struct Resources {}
+
+impl Resources {
+    fn doc_path(&self) -> Option<&Path> {
+        None
+    }
+    fn run(&self) -> Result<()> {
+        for (name, bytes) in subplot::resource::embedded_files() {
+            println!("{} {} bytes", name, bytes.len());
+        }
+        Ok(())
+    }
+}
+#[derive(Debug, StructOpt)]
 /// Extract embedded files from a subplot document
 ///
 /// If no embedded filenames are provided, this will
diff --git a/src/resource.rs b/src/resource.rs
index f22e1ef..cfcc63a 100644
--- a/src/resource.rs
+++ b/src/resource.rs
@@ -50,6 +50,11 @@ lazy_static! {
 
 static EMBEDDED_FILES: &[(&str, &[u8])] = include!(concat!(env!("OUT_DIR"), "/embedded_files.inc"));
 
+/// Retrieve the embedded file list
+pub fn embedded_files() -> &'static [(&'static str, &'static [u8])] {
+    EMBEDDED_FILES
+}
+
 /// Put a path at the back of the queue to search in
 fn add_search_path<P: AsRef<Path>>(path: P) {
     SEARCH_PATHS