From 4eaf5080ce8f2bbece3110b196c6e4fa83f4e0d7 Mon Sep 17 00:00:00 2001
From: Lars Wirzenius <liw@liw.fi>
Date: Mon, 8 Jun 2020 06:08:32 +0300
Subject: feat(sp-meta): list names of embedded files in output

---
 src/bin/sp-meta.rs |  8 ++++++++
 subplot.md         | 25 +++++++++++++++++++++++++
 2 files changed, 33 insertions(+)

diff --git a/src/bin/sp-meta.rs b/src/bin/sp-meta.rs
index 49f6173..b693d26 100644
--- a/src/bin/sp-meta.rs
+++ b/src/bin/sp-meta.rs
@@ -45,6 +45,7 @@ struct Metadata {
     function_files: Vec<String>,
     bibliographies: Vec<String>,
     scenarios: Vec<String>,
+    files: Vec<String>,
 }
 
 impl TryFrom<&mut Document> for Metadata {
@@ -79,6 +80,11 @@ impl TryFrom<&mut Document> for Metadata {
             .into_iter()
             .map(|s| s.title().to_owned())
             .collect();
+        let files = doc
+            .files()
+            .iter()
+            .map(|f| f.filename().to_owned())
+            .collect();
         Ok(Self {
             sources,
             title,
@@ -86,6 +92,7 @@ impl TryFrom<&mut Document> for Metadata {
             function_files,
             bibliographies,
             scenarios,
+            files,
         })
     }
 }
@@ -101,6 +108,7 @@ impl Metadata {
         Self::write_list(&self.binding_files, "bindings");
         Self::write_list(&self.function_files, "functions");
         Self::write_list(&self.bibliographies, "bibliography");
+        Self::write_list(&self.files, "file");
         Self::write_list(&self.scenarios, "scenario");
     }
 }
diff --git a/subplot.md b/subplot.md
index b2cdecf..bf8d651 100644
--- a/subplot.md
+++ b/subplot.md
@@ -1609,6 +1609,7 @@ bibliography: [foo.bib, bar.bib]
 	  "foo.bib",
 	  "bar.bib"
 	],
+	"files": [],
 	"scenarios": []
 }
 ~~~
@@ -1812,6 +1813,30 @@ This is another embedded file, and has the same name in uppercase.
 ~~~~
 
 
+### List embedded files
+
+The `sp-meta` command lists embedded files in its output.
+
+~~~scenario
+given file two-embedded.md
+when I run sp-meta two-embedded.md
+then output matches /foo.txt/
+and output matches /bar.yaml/
+~~~
+
+~~~~~~{#two-embedded.md .file .markdown .numberLines}
+---
+title: Two embedded files
+...
+
+~~~{#foo.txt .file}
+~~~
+
+~~~{#bar.yaml. .file}
+~~~
+~~~~~~
+
+
 ## Embedded graphs
 
 Subplot allows embedding markup to generate graphs into the Markdown document.
-- 
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