resource: Switch from 'templates' to 'share'

In a general sense, we will want to have more than just template
files as resources.  This shifts from the concept that the only
thing resource-wise that subplot has is templates, to a more general
shared resources concept without a default path beyond CWD.

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

1 files changed, 5 insertions, 4 deletions

diff --git a/src/codegen.rs b/src/codegen.rs
index 063f8a2..93d1c75 100644
--- a/src/codegen.rs
+++ b/src/codegen.rs
@@ -9,19 +9,20 @@ use base64::encode;
 use serde::Serialize;
 use tera::{Context, Tera, Value};
 
-use anyhow::Result;
+use anyhow::{Context as AnyhowContext, Result};
 
 /// Return the requested template specification.
-pub fn template_spec(templates: &Path, doc: &Document) -> Result<TemplateSpec> {
+pub fn template_spec(doc: &Document) -> Result<TemplateSpec> {
     let template = doc
         .meta()
         .template_name()
         .ok_or(SubplotError::MissingTemplate)?;
 
-    let mut filename = templates.to_path_buf();
+    let mut filename = PathBuf::from("templates");
     filename.push(Path::new(template));
     filename.push(Path::new("template.yaml"));
-    Ok(TemplateSpec::from_file(&filename)?)
+    Ok(TemplateSpec::from_file(&filename)
+        .with_context(|| format!("Failed to read template file: {}", filename.display()))?)
 }
 
 /// Generate a test program from a document, using a template spec.