Separate project URL from GitVersion.Info

Allows getting the URL of the Git Version without needing to rely on
other aspects of the Git Version succeeding.

Author: Jonathing

src/main/java/net/minecraftforge/gitver/api/GitVersion.java

@@ -267,6 +267,14 @@ default String getMCTagOffsetBranch(String mcVersion, Collection<String> allowed
      */
     Info getInfo() throws GitVersionException;
 
+    /**
+     * Gets the URL of the Git repository. This is used to generate the changelog, and is exposed here to allow access
+     * to it for other purposes, such as setting links in a Maven POM.
+     *
+     * @return The URL of the Git repository, or {@code null} if there is none
+     */
+    @Nullable String getUrl();
+
     /**
      * Represents information about a git repository. This can be used to access other information when the standard
      * versioning methods in {@link GitVersion} do not suffice.
@@ -321,6 +329,7 @@ default String getBranch(boolean versionFriendly) {
         String getAbbreviatedId();
 
         /** @return The path URL, or {@code null} if there is none */
+        @Deprecated(forRemoval = true, since = "0.2")
         @Nullable String getUrl();
     }
 

src/main/java/net/minecraftforge/gitver/internal/GitVersionImpl.java

@@ -31,6 +31,7 @@ public sealed class GitVersionImpl implements GitVersion permits GitVersionImpl.
     private final boolean strict;
     private Git git;
     private final Lazy<Info> info = Lazy.of(() -> this.calculateInfo(this::getSubprojectCommitCount));
+    private final Lazy<String> url = Lazy.of(this::calculateUrl);
     private boolean closed = false;
 
     // Filesystem
@@ -113,6 +114,11 @@ public GitVersion.Info getInfo() {
         return this.info.get();
     }
 
+    @Override
+    public @Nullable String getUrl() {
+        return this.url.get();
+    }
+
     /** @see #info */
     private Info calculateInfo(CommitCountProvider commitCountProvider) {
         try {
@@ -173,15 +179,26 @@ private Info calculateInfo(CommitCountProvider commitCountProvider) {
         }
     }
 
+    /** @see #url */
+    private @Nullable String calculateUrl() {
+        try {
+            this.open();
+
+            return GitUtils.buildProjectUrl(this.git);
+        } catch (Exception e) {
+            return null;
+        }
+    }
+
     /** @see GitVersion.Info */
     public record Info(
-        @Override String getTag,
-        @Override String getOffset,
-        @Override String getHash,
-        @Override String getBranch,
-        @Override String getCommit,
-        @Override String getAbbreviatedId,
-        @Override @Nullable String getUrl
+        String getTag,
+        String getOffset,
+        String getHash,
+        String getBranch,
+        String getCommit,
+        String getAbbreviatedId,
+        @Deprecated(forRemoval = true, since = "0.2") @Nullable String getUrl
     ) implements GitVersion.Info {
         private static final Info EMPTY = new Info("0.0", "0", "00000000", "master", "0000000000000000000000", "00000000", null);
 
@@ -196,7 +213,7 @@ private static final class Builder {
             private String branch;
             private String commit;
             private String abbreviatedId;
-            private String url;
+            @Deprecated(forRemoval = true, since = "0.2") private String url;
 
             private Info build() {
                 return new Info(this.tag, this.offset, this.hash, this.branch, this.commit, this.abbreviatedId, this.url);
@@ -355,6 +372,11 @@ public GitVersion.Info getInfo() {
             return GitVersionImpl.Info.EMPTY;
         }
 
+        @Override
+        public @Nullable String getUrl() {
+            return null;
+        }
+
         @Override
         public String getTagPrefix() {
             throw new GitVersionExceptionInternal("Cannot get tag prefix from an empty repository");