Allow to fallback on GITHUB_OAUTH env variable when no token has been…

… given.

src/main/java/fr/inria/jtravis/JTravis.java

@@ -111,20 +111,22 @@ public GitHub getGithub() throws IOException {
  if (this.github == null) {
  if (!this.travisConfig.getGithubToken().isEmpty()) {
  try {
- LOGGER.debug("Get GH OAuth (10 first characters): "+this.travisConfig.getGithubToken().substring(0,10));
  this.github = GitHubBuilder.fromEnvironment().withOAuthToken(this.travisConfig.getGithubToken()).build();
  } catch (IOException e) {
- LOGGER.warn("Error while using credentials: try to use anonymous access to github.", e);
+ LOGGER.error("Error while using credentials (10 first characters of token: "+this.travisConfig.getGithubToken().substring(0,10)+"): fallback to anonymous connection.", e);
  this.github = GitHub.connectAnonymously();
- LOGGER.warn("No github information has been given to connect (set GITHUB_OAUTH), you will have a very low ratelimit for github requests.");
  }
  } else {
- this.github = GitHub.connectAnonymously();
- LOGGER.warn("No github information has been given to connect (set GITHUB_OAUTH), you will have a very low ratelimit for github requests.");
+ LOGGER.info("No Github token has been given, try to connect using environment information");
+ try {
+ this.github = GitHubBuilder.fromEnvironment().build();
+ } catch (IOException e) {
+ LOGGER.warn("Error while using environment credentials: fallback to anonymous connection. In the future try by setting a proper token in GITHUB_OAUTH env variable.", e);
+ this.github = GitHub.connectAnonymously();
+ }
  }
  }
  GHRateLimit rateLimit = this.github.getRateLimit();
-
  LOGGER.info("GitHub ratelimit: Limit: " + rateLimit.limit + " Remaining: " + rateLimit.remaining + " Reset hour: " + hourSimpleDateFormat.format(rateLimit.reset));
  return this.github;
  }