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, 24 insertions, 0 deletions

diff --git a/src/resource.rs b/src/resource.rs
index dd30678..48c8cc5 100644
--- a/src/resource.rs
+++ b/src/resource.rs
@@ -8,6 +8,30 @@
 use std::io::{self, Read};
 use std::path::{Path, PathBuf};
 use std::sync::Mutex;
+use structopt::StructOpt;
+
+#[derive(Debug, StructOpt)]
+/// Options which relate to resource management
+///
+/// To use this, include them *flat* in your options struct, and then after
+/// parsing, call the [ResourceOpts::handle()] function.
+pub struct ResourceOpts {
+    #[structopt(
+        long,
+        help = "Look for code templates and other resources in DIR",
+        name = "DIR"
+    )]
+    resources: Option<PathBuf>,
+}
+
+impl ResourceOpts {
+    /// Handle any supplied resource related arguments
+    pub fn handle(&self) {
+        if let Some(rpath) = self.resources.as_ref() {
+            add_search_path(rpath);
+        }
+    }
+}
 
 use lazy_static::lazy_static;