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Add Git commit hash version comparing
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105 changes: 105 additions & 0 deletions
105
src/main/java/net/fabricmc/loader/impl/util/version/CommitHashVersion.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,105 @@ | ||
| package net.fabricmc.loader.impl.util.version; | ||
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| import net.fabricmc.loader.api.Version; | ||
| import net.fabricmc.loader.api.VersionParsingException; | ||
| import net.fabricmc.loader.impl.lib.gson.JsonReader; | ||
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| import org.jetbrains.annotations.NotNull; | ||
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| import java.io.IOException; | ||
| import java.io.InputStreamReader; | ||
| import java.net.MalformedURLException; | ||
| import java.net.URL; | ||
| import java.time.Instant; | ||
| import java.time.format.DateTimeParseException; | ||
| import java.util.regex.Matcher; | ||
| import java.util.regex.Pattern; | ||
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| public class CommitHashVersion implements Version { | ||
| private static final Pattern GIT_COMMIT_HASH_PATTERN = Pattern.compile("^[0-9a-fA-F]{40}$"); | ||
| private static final Pattern SOURCES_PATTERN = Pattern.compile("^(?:https?://)?github\\.com/([\\w-]+)/([\\w-]+)/?$"); | ||
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| private final String commitHash; | ||
| private final Instant commitDate; | ||
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| public CommitHashVersion(String commitHash, String sources) throws VersionParsingException { | ||
| if (!GIT_COMMIT_HASH_PATTERN.matcher(commitHash).matches()) { | ||
| throw new VersionParsingException("Invalid Git commit hash"); | ||
| } | ||
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| this.commitHash = commitHash; | ||
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| Matcher matcher = SOURCES_PATTERN.matcher(sources); | ||
| if (!matcher.matches()) { | ||
| throw new VersionParsingException("Unsupported or invalid sources link"); | ||
| } | ||
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| String apiUrlString = String.format("https://api.github.com/repos/%s/%s/git/commits/%s", matcher.group(1), matcher.group(2), this.commitHash); | ||
| URL apiUrl; | ||
| try { | ||
| apiUrl = new URL(apiUrlString); | ||
| } catch (MalformedURLException e) { | ||
| throw new VersionParsingException("Sources URL is malformed"); | ||
| } | ||
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| String dateString; | ||
| try (JsonReader reader = new JsonReader(new InputStreamReader(apiUrl.openStream()))) { | ||
| reader.beginObject(); | ||
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| // skip sha, node id, url, HTML url, author | ||
| for (int i = 0; i < 5; i++) { | ||
| reader.nextName(); | ||
| reader.skipValue(); | ||
| } | ||
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| reader.nextName(); | ||
| reader.beginObject(); | ||
| // skip name, email | ||
| for (int i = 0; i < 2; i++) { | ||
| reader.nextName(); | ||
| reader.skipValue(); | ||
| } | ||
| reader.nextName(); | ||
| dateString = reader.nextString(); | ||
| } catch (IOException e) { | ||
| throw new VersionParsingException("Could not connect to GitHub's API"); | ||
| } | ||
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| Instant date; | ||
| try { | ||
| date = Instant.parse(dateString); | ||
| } catch (DateTimeParseException e) { | ||
| throw new VersionParsingException("Date could not be parsed"); | ||
| } | ||
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| this.commitDate = date; | ||
| } | ||
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| @Override | ||
| public String getFriendlyString() { | ||
| return String.format("%s (%s)", this.commitHash.substring(0, 7), this.commitDate.toString()); | ||
| } | ||
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| @Override | ||
| public int compareTo(@NotNull Version other) { | ||
| if (!(other instanceof CommitHashVersion)) { | ||
| return this.getFriendlyString().compareTo(other.getFriendlyString()); | ||
| } | ||
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| return this.commitDate.compareTo(((CommitHashVersion) other).commitDate); | ||
| } | ||
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| @Override | ||
| public boolean equals(Object obj) { | ||
| if (obj instanceof CommitHashVersion) { | ||
| return this.commitHash.equals(((CommitHashVersion) obj).commitHash); | ||
| } | ||
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| return false; | ||
| } | ||
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| @Override | ||
| public String toString() { | ||
| return this.getFriendlyString(); | ||
| } | ||
| } |
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