95 lines
3.6 KiB
Java
95 lines
3.6 KiB
Java
package io.gitlab.jfronny.resclone.fetchers;
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import com.google.gson.JsonElement;
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import com.google.gson.JsonObject;
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import io.gitlab.jfronny.resclone.Resclone;
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import io.gitlab.jfronny.resclone.util.UrlUtils;
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import org.jetbrains.annotations.Nullable;
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public class GitHubFetcher extends PackFetcher {
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@Override
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public String getSourceTypeName() {
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return "github";
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}
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@Override
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String getDownloadUrl(String baseUrl) throws Exception {
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String[] parts = baseUrl.split("/");
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if (parts.length < 2) {
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throw new Exception("Minimum source must contain \"user/repo\".");
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}
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/* "user/repo" - Gets from latest commit of main/master branch. */
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else if (parts.length == 2) {
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return getFromBranch(parts[0], parts[1], null);
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}
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/* "user/repo/branch/branchName" - Gets from latest commit of specified branch. */
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else if (parts[2].equalsIgnoreCase("branch")) {
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if (parts.length < 4) throw new Exception("Missing branch name in source definition.");
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else {
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Resclone.LOGGER.info("Getting from " + parts[3] + " branch.");
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return getFromBranch(parts[0], parts[1], parts[3]);
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}
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}
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/* "user/repo/release" - Gets from the latest release. */
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else if (parts[2].equalsIgnoreCase("release")) {
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try {
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JsonObject latestRelease = UrlUtils.readJsonFromURL("https://api.github.com/repos/" + parts[0] + "/" + parts[1] + "/releases/latest", JsonObject.class);
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String res = null;
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for (JsonElement element : latestRelease.get("assets").getAsJsonArray()) {
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JsonObject o = element.getAsJsonObject();
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if ("application/x-zip-compressed".equals(o.get("content_type").getAsString()) || o.get("name").getAsString().endsWith(".zip")) {
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res = o.get("browser_download_url").getAsString();
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break;
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}
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}
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Resclone.LOGGER.info("Getting from latest release.");
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if (res == null) return latestRelease.get("zipball_url").getAsString();
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else return res;
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} catch (Throwable e) {
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throw new Exception("Failed to get github release asset", e);
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}
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}
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/* "user/repo/tag/tagNum" - Gets from a specified tag. */
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else if (parts[2].equalsIgnoreCase("tag")) {
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if (parts.length < 4) throw new Exception("Missing tag number in source definition.");
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else {
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return getFromTag(parts[0], parts[1], parts[3]);
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}
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}
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return null;
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}
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private String getFromBranch(String user, String repo, @Nullable String branch) {
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boolean main = branch == null;
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String url;
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if (main) {
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url = "https://codeload.github.com/" + user + "/" + repo + "/legacy.zip/refs/heads/main";
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if (!UrlUtils.urlValid(url)) url = "https://codeload.github.com/" + user + "/" + repo + "/legacy.zip/refs/heads/master";
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Resclone.LOGGER.info("Getting from main branch.");
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}
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else {
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url = "https://codeload.github.com/" + user + "/" + repo + "/legacy.zip/refs/heads/" + branch;
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Resclone.LOGGER.info("Getting from " + branch + " branch.");
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}
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return url;
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}
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private String getFromTag(String user, String repo, String tag) {
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Resclone.LOGGER.info("Getting from tag " + tag + ".");
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return "https://codeload.github.com/" + user + "/" + repo + "/legacy.zip/refs/tags/" + tag;
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}
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} |