Merge pull request #3426 from objectionary/qf

return hash if tag is the hash
objectionary · Oct 20, 2024 · b5ebe68 · b5ebe68
2 parents 340e4c7 + 404ec0a
commit b5ebe68
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diff --git a/eo-maven-plugin/src/main/java/org/eolang/maven/hash/ChText.java b/eo-maven-plugin/src/main/java/org/eolang/maven/hash/ChText.java
@@ -75,6 +75,20 @@ public ChText(final Path file, final String tag) {
 
     @Override
     public String value() {
+        final String hash;
+        if (this.tag.matches("[0-9a-fA-F]{40}")) {
+            hash = this.tag;
+        } else {
+            hash = this.inside();
+        }
+        return hash;
+    }
+
+    /**
+     * Find and return Git SHA for the given tag (or throw if not found).
+     * @return The Git SHA
+     */
+    private String inside() {
         return new Unchecked<>(
             new Mapped<>(
                 Text::asString,

diff --git a/eo-maven-plugin/src/test/java/org/eolang/maven/hash/ChTextTest.java b/eo-maven-plugin/src/test/java/org/eolang/maven/hash/ChTextTest.java
@@ -115,4 +115,16 @@ void readsHashByNonExistedTag() {
             BinarizeParseTest.TO_ADD_MESSAGE
         );
     }
+
+    @Test
+    void readsHashByHash() {
+        MatcherAssert.assertThat(
+            "Hash must be itself, even if it's absent in the table",
+            new ChText(
+                () -> "",
+                "434868a411b9741fdd4f8a38a5c576e8733345c9"
+            ).value(),
+            Matchers.equalTo("434868a411b9741fdd4f8a38a5c576e8733345c9")
+        );
+    }
 }