subplotlib: Add create_dir_all to datadir context

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

1 files changed, 6 insertions, 0 deletions

diff --git a/subplotlib/src/steplibrary/datadir.rs b/subplotlib/src/steplibrary/datadir.rs
index 1ef485e..ab80d25 100644
--- a/subplotlib/src/steplibrary/datadir.rs
+++ b/subplotlib/src/steplibrary/datadir.rs
@@ -95,6 +95,12 @@ impl Datadir {
             .truncate(true)
             .open(full_path)?
     }
+
+    #[throws(StepError)]
+    pub fn create_dir_all<S: AsRef<Path>>(&self, subpath: S) {
+        let full_path = self.canonicalise_filename(subpath)?;
+        std::fs::create_dir_all(full_path)?;
+    }
 }
 
 /// A simple check for enough disk space in the data dir