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Merge pull request #28 from FlintMC/improvement/dependency-sha1-hashing
Add sha1 hashing to manifests
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123 changes: 123 additions & 0 deletions
123
src/main/java/net/flintmc/gradle/manifest/cache/MavenArtifactChecksums.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,123 @@ | ||
| /* | ||
| * FlintMC | ||
| * Copyright (C) 2020-2021 LabyMedia GmbH and contributors | ||
| * | ||
| * This program is free software; you can redistribute it and/or | ||
| * modify it under the terms of the GNU Lesser General Public | ||
| * License as published by the Free Software Foundation; either | ||
| * version 3 of the License, or (at your option) any later version. | ||
| * | ||
| * This program is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| * Lesser General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU Lesser General Public License | ||
| * along with this program; if not, write to the Free Software Foundation, | ||
| * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. | ||
| */ | ||
|
|
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| package net.flintmc.gradle.manifest.cache; | ||
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| import net.flintmc.gradle.maven.pom.MavenArtifact; | ||
| import net.flintmc.gradle.util.Util; | ||
| import org.gradle.api.Project; | ||
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| import java.io.*; | ||
| import java.util.HashMap; | ||
| import java.util.Map; | ||
|
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| public class MavenArtifactChecksums implements Externalizable { | ||
| /** | ||
| * Loads the cached static file checksums from a file. | ||
| * | ||
| * @param file The file to load the cached checksums from | ||
| * @return The loaded checksums | ||
| * @throws IOException If an I/O error occurs while loading the checksums | ||
| */ | ||
| public static MavenArtifactChecksums load(File file) throws IOException { | ||
| try (ObjectInputStream in = new ObjectInputStream(new FileInputStream(file))) { | ||
| return Util.forceCast(in.readObject()); | ||
| } catch (ClassNotFoundException e) { | ||
| throw new IOException("Failed to read cached checksums of maven artifacts due to ClassNotFoundException", e); | ||
| } | ||
| } | ||
|
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| private Map<MavenArtifact, String> artifactChecksums; | ||
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| /** | ||
| * Constructs a new {@link MavenArtifactChecksums} with all values empty. | ||
| */ | ||
| public MavenArtifactChecksums() { | ||
| this.artifactChecksums = new HashMap<>(); | ||
| } | ||
|
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| /** | ||
| * Saves this instance to the given file. | ||
| * | ||
| * @param file The file to write the cache to | ||
| * @throws IOException If an I/O error occurs | ||
| */ | ||
| public void save(File file) throws IOException { | ||
| try (ObjectOutputStream out = new ObjectOutputStream(new FileOutputStream(file))) { | ||
| out.writeObject(this); | ||
| } | ||
| } | ||
|
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| /** | ||
| * Adds a checksum to the map of URI checksums. | ||
| * | ||
| * @param mavenArtifact The maven artifact to add the checksum for | ||
| * @param checksum The checksum of the download | ||
| */ | ||
| public void add(MavenArtifact mavenArtifact, String checksum) { | ||
| this.artifactChecksums.put(mavenArtifact, checksum); | ||
| } | ||
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| /** | ||
| * Checks if the checksums contain a checksum for the given URI. | ||
| * | ||
| * @param mavenArtifact The maven artifact to check for | ||
| * @return {@code true} if a checksum for the URI has been cached, {@code false} otherwise | ||
| */ | ||
| public boolean has(MavenArtifact mavenArtifact) { | ||
| return artifactChecksums.containsKey(mavenArtifact); | ||
| } | ||
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| /** | ||
| * Retrieves the checksum for the given URI. | ||
| * | ||
| * @param mavenArtifact The maven artifact to retrieve the checksum for | ||
| * @return The checksum of the download behind the URI, or {@code null}, if the URI has not been cached | ||
| */ | ||
| public String get(MavenArtifact mavenArtifact) { | ||
| return artifactChecksums.get(mavenArtifact); | ||
| } | ||
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| /** | ||
| * Clears all URI checksums. | ||
| */ | ||
| public void clearArtifacts() { | ||
| artifactChecksums.clear(); | ||
| } | ||
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| @Override | ||
| public void writeExternal(ObjectOutput out) throws IOException { | ||
| out.writeObject(this.artifactChecksums); | ||
| } | ||
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| @Override | ||
| public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException { | ||
| this.artifactChecksums = Util.forceCast(in.readObject()); | ||
| } | ||
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| /** | ||
| * Retrieves a project unique file to cache bound dependencies in. | ||
| * | ||
| * @param project The project to retrieve the cache file for | ||
| * @return The cache file | ||
| */ | ||
| public static File getCacheFile(Project project) { | ||
| return new File(Util.getProjectCacheDir(project), "artifact-checksums.bin"); | ||
| } | ||
| } |
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