Remove `Artifact` type

This patch follows-up on the shrinking of the `Artifact` type and removes it
entirely.

The type is not needed. Only the `ArtifactPath` type is needed, which is a thin
wrapper around `PathBuf`, ensuring that the path is relative to the store root.

The `Artifact` type used `pom` to parse the name and version of the package from
the `ArtifactPath` object it contained, which resulted in the restriction that
the path must always be

    <name>-<version>...

Which should not be a requirement and actually caused issues with a package
named "foo-bar" (as an example).

Signed-off-by: Matthias Beyer <matthias.beyer@atos.net>
Tested-by: Matthias Beyer <matthias.beyer@atos.net>

6 files changed, 27 insertions, 72 deletions

diff --git a/src/filestore/artifact.rs b/src/filestore/artifact.rs
deleted file mode 100644
index 2f3477a..0000000
--- a/src/filestore/artifact.rs
+++ /dev/null
@@ -1,30 +0,0 @@
-//
-// Copyright (c) 2020-2021 science+computing ag and other contributors
-//
-// This program and the accompanying materials are made
-// available under the terms of the Eclipse Public License 2.0
-// which is available at https://www.eclipse.org/legal/epl-2.0/
-//
-// SPDX-License-Identifier: EPL-2.0
-//
-
-use anyhow::Result;
-use getset::Getters;
-
-use crate::filestore::path::ArtifactPath;
-use crate::filestore::path::StoreRoot;
-
-#[derive(Clone, PartialEq, Eq, PartialOrd, Ord, Debug, Getters)]
-pub struct Artifact {
-    #[getset(get = "pub")]
-    path: ArtifactPath,
-}
-
-impl Artifact {
-    pub fn load(_root: &StoreRoot, path: ArtifactPath) -> Result<Self> {
-        Ok(Artifact {
-            path,
-        })
-    }
-}
-
diff --git a/src/filestore/merged.rs b/src/filestore/merged.rs
index 0b19d85..4c7a38b 100644
--- a/src/filestore/merged.rs
+++ b/src/filestore/merged.rs
@@ -21,7 +21,6 @@ use getset::Getters;
 use log::trace;
 use tokio::sync::RwLock;
 
-use crate::filestore::Artifact;
 use crate::filestore::path::ArtifactPath;
 use crate::filestore::ReleaseStore;
 use crate::filestore::StagingStore;
@@ -45,7 +44,7 @@ impl MergedStores {
         MergedStores { release, staging }
     }
 
-    pub async fn get_artifact_by_path(&self, p: &Path) -> Result<Option<Artifact>> {
+    pub async fn get_artifact_by_path(&self, p: &Path) -> Result<Option<ArtifactPath>> {
         trace!("Fetching artifact from path: {:?}", p.display());
         let artifact_path = ArtifactPath::new(p.to_path_buf())?;
 
@@ -58,7 +57,7 @@ impl MergedStores {
                 art
             } else {
                 trace!("Loading path from staging store: {:?}", artifact_path.display());
-                staging.load_from_path(&artifact_path)?
+                staging.load_from_path(&artifact_path)
             };
 
             return Ok(Some(art.clone()))
@@ -73,7 +72,7 @@ impl MergedStores {
                 art
             } else {
                 trace!("Loading path from release store: {:?}", artifact_path.display());
-                release.load_from_path(&artifact_path)?
+                release.load_from_path(&artifact_path)
             };
             return Ok(Some(art.clone()))
         }
diff --git a/src/filestore/mod.rs b/src/filestore/mod.rs
index 0d19d02..29eb476 100644
--- a/src/filestore/mod.rs
+++ b/src/filestore/mod.rs
@@ -8,9 +8,6 @@
 // SPDX-License-Identifier: EPL-2.0
 //
 
-mod artifact;
-pub use artifact::*;
-
 mod release;
 pub use release::*;
 
@@ -21,5 +18,6 @@ mod merged;
 pub use merged::*;
 
 pub mod path;
+pub use path::ArtifactPath;
 
 mod util;
diff --git a/src/filestore/path.rs b/src/filestore/path.rs
index c38c114..a03ab83 100644
--- a/src/filestore/path.rs
+++ b/src/filestore/path.rs
@@ -94,7 +94,7 @@ impl StoreRoot {
     }
 }
 
-#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord)]
+#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
 pub struct ArtifactPath(PathBuf);
 
 impl ArtifactPath {
diff --git a/src/filestore/staging.rs b/src/filestore/staging.rs
index 788cd02..1c2a848 100644
--- a/src/filestore/staging.rs
+++ b/src/filestore/staging.rs
@@ -10,16 +10,15 @@
 
 use std::fmt::Debug;
 
-use anyhow::anyhow;
 use anyhow::Context;
 use anyhow::Error;
 use anyhow::Result;
+use anyhow::anyhow;
 use futures::stream::Stream;
 use indicatif::ProgressBar;
 use log::trace;
 use result_inspect::ResultInspect;
 
-use crate::filestore::Artifact;
 use crate::filestore::path::ArtifactPath;
 use crate::filestore::path::StoreRoot;
 use crate::filestore::util::FileStoreImpl;
@@ -84,14 +83,12 @@ impl StagingStore {
                     None
                 } else {
                     Some({
-                        ArtifactPath::new(path).and_then(|ap| {
-                            self.0
-                                .load_from_path(&ap)
-                                .inspect(|r| trace!("Loaded from path {} = {:?}", ap.display(), r))
-                                .with_context(|| anyhow!("Loading from path: {}", ap.display()))
-                                .map_err(Error::from)
-                                .map(|art| art.path().clone())
-                        })
+                        // Clippy doesn't detect this properly
+                        #[allow(clippy::redundant_clone)]
+                        ArtifactPath::new(path.to_path_buf())
+                            .inspect(|r| trace!("Loaded from path {} = {:?}", path.display(), r))
+                            .with_context(|| anyhow!("Loading from path: {}", path.display()))
+                            .map(|ap| self.0.load_from_path(&ap).clone())
                     })
                 }
             })
@@ -102,7 +99,7 @@ impl StagingStore {
         self.0.root_path()
     }
 
-    pub fn get(&self, p: &ArtifactPath) -> Option<&Artifact> {
+    pub fn get(&self, p: &ArtifactPath) -> Option<&ArtifactPath> {
         self.0.get(p)
     }
 }
diff --git a/src/filestore/util.rs b/src/filestore/util.rs
index 2fc1483..0d98404 100644
--- a/src/filestore/util.rs
+++ b/src/filestore/util.rs
@@ -11,15 +11,13 @@
 //! Module containing utilities for the filestore implementation
 //!
 
-use std::collections::BTreeMap;
+use std::collections::HashSet;
 
-use anyhow::anyhow;
 use anyhow::Result;
 use indicatif::ProgressBar;
-use resiter::AndThen;
 
-use crate::filestore::path::*;
-use crate::filestore::Artifact;
+use crate::filestore::path::ArtifactPath;
+use crate::filestore::path::StoreRoot;
 
 /// The actual filestore implementation
 ///
@@ -29,19 +27,16 @@ use crate::filestore::Artifact;
 /// It can then be wrapped into the actual interface of this module with specialized functionality.
 pub struct FileStoreImpl {
     pub(in crate::filestore) root: StoreRoot,
-    store: BTreeMap<ArtifactPath, Artifact>,
+    store: HashSet<ArtifactPath>,
 }
 
 impl FileStoreImpl {
-    /// Loads the passed path recursively into a Path => Artifact mapping
+    /// Loads the passed path recursively 
     pub fn load(root: StoreRoot, progress: ProgressBar) -> Result<Self> {
         let store = root
             .find_artifacts_recursive()
-            .and_then_ok(|artifact_path| {
-                progress.tick();
-                Artifact::load(&root, artifact_path.clone()).map(|a| (artifact_path, a))
-            })
-            .collect::<Result<BTreeMap<ArtifactPath, Artifact>>>()?;
+            .inspect(|_| progress.tick())
+            .collect::<Result<HashSet<ArtifactPath>>>()?;
 
         Ok(FileStoreImpl { root, store })
     }
@@ -50,21 +45,17 @@ impl FileStoreImpl {
         &self.root
     }
 
-    pub fn get(&self, artifact_path: &ArtifactPath) -> Option<&Artifact> {
+    pub fn get(&self, artifact_path: &ArtifactPath) -> Option<&ArtifactPath> {
         self.store.get(artifact_path)
     }
 
-    pub(in crate::filestore) fn load_from_path(
+    pub(in crate::filestore) fn load_from_path<'a>(
         &mut self,
-        artifact_path: &ArtifactPath,
-    ) -> Result<&Artifact> {
-        if self.store.get(&artifact_path).is_some() {
-            Err(anyhow!("Entry exists: {}", artifact_path.display()))
-        } else {
-            Ok(self
-                .store
-                .entry(artifact_path.clone())
-                .or_insert(Artifact::load(&self.root, artifact_path.clone())?))
+        artifact_path: &'a ArtifactPath,
+    ) -> &'a ArtifactPath {
+        if !self.store.contains(artifact_path) {
+            self.store.insert(artifact_path.clone());
         }
+        artifact_path
     }
 }