first steps for async

2 files changed, 7 insertions, 4 deletions

diff --git a/src/bin/summain.rs b/src/bin/summain.rs
index 76982b9..8526759 100644
--- a/src/bin/summain.rs
+++ b/src/bin/summain.rs
@@ -1,4 +1,5 @@
 use anyhow::Context;
+use futures::executor::block_on;
 use std::path::{Path, PathBuf};
 use structopt::StructOpt;
 use summain::ManifestEntry;
@@ -8,7 +9,7 @@ fn main() -> anyhow::Result<()> {
     opt.pathnames[..].sort();
 
     for filename in opt.pathnames.iter() {
-        let m = manifest(&filename)?;
+        let m = block_on(manifest(&filename))?;
         print!("{}", serde_yaml::to_string(&m)?);
     }
 
@@ -21,6 +22,8 @@ struct Opt {
     pathnames: Vec<PathBuf>,
 }
 
-fn manifest(path: &Path) -> anyhow::Result<ManifestEntry> {
-    ManifestEntry::new(path).with_context(|| format!("{}", path.display()))
+async fn manifest(path: &Path) -> anyhow::Result<ManifestEntry> {
+    ManifestEntry::new(path)
+        .await
+        .with_context(|| format!("{}", path.display()))
 }
diff --git a/src/lib.rs b/src/lib.rs
index 3c90156..00c64cf 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -60,7 +60,7 @@ impl ManifestEntry {
     /// caller. This function doesn't query the system for it.
     ///
     /// The structure can be serialized using serde.
-    pub fn new(path: &Path) -> std::io::Result<Self> {
+    pub async fn new(path: &Path) -> std::io::Result<Self> {
         let m = symlink_metadata(path)?;
         let hash = if m.is_file() {
             Some(file_checksum(path)?)