fix: allow docgen to handle a subplot not in current directory

Sponsored-by: author

1 files changed, 7 insertions, 1 deletions

diff --git a/src/bin/subplot.rs b/src/bin/subplot.rs
index b95b550..b23f858 100644
--- a/src/bin/subplot.rs
+++ b/src/bin/subplot.rs
@@ -265,8 +265,14 @@ impl Docgen {
             date.to_string()
         } else {
             let mut newest = None;
+            let basedir = if let Some(basedir) = self.input.parent() {
+                basedir.to_path_buf()
+            } else {
+                return Err(SubplotError::BasedirError(self.input.clone()).into());
+            };
             for filename in doc.meta().markdown_filenames() {
-                let mtime = Self::mtime(filename)?;
+                let filename = basedir.join(filename);
+                let mtime = Self::mtime(&filename)?;
                 if let Some(so_far) = newest {
                     if mtime > so_far {
                         newest = Some(mtime);