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Merge pull request #178 from stephenc/more-logging

[FIXED JENKINS-49945] Fix regex and add some logging to help diagnose issues in resolve(thingName,listener)
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stephenc committed Mar 9, 2018
2 parents d60cc76 + e5618fb commit 8293288381f909034e1f754da69fe57afdb5cd94
Showing with 66 additions and 9 deletions.
  1. +66 −9 src/main/java/org/jenkinsci/plugins/github_branch_source/GitHubSCMSource.java
@@ -122,7 +122,6 @@
import org.kohsuke.github.GHPullRequest;
import org.kohsuke.github.GHRef;
import org.kohsuke.github.GHRepository;
import org.kohsuke.github.GHTag;
import org.kohsuke.github.GHTagObject;
import org.kohsuke.github.GHUser;
import org.kohsuke.github.GitHub;
@@ -131,9 +130,9 @@
import org.kohsuke.stapler.DataBoundConstructor;
import org.kohsuke.stapler.DataBoundSetter;
import org.kohsuke.stapler.QueryParameter;
import org.kohsuke.stapler.interceptor.RequirePOST;

import static hudson.model.Items.XSTREAM2;
import org.kohsuke.stapler.interceptor.RequirePOST;

public class GitHubSCMSource extends AbstractGitSCMSource {

@@ -1158,25 +1157,42 @@ protected SCMRevision retrieve(@NonNull String headName, @NonNull TaskListener l
String fullName = repoOwner + "/" + repository;
ghRepository = github.getRepository(fullName);
final GHRepository ghRepository = this.ghRepository;
listener.getLogger().format("Examining %s%n",
HyperlinkNote.encodeTo(ghRepository.getHtmlUrl().toString(), fullName));
GitHubSCMSourceContext context = new GitHubSCMSourceContext(null, SCMHeadObserver.none())
.withTraits(traits);
Matcher prMatcher = Pattern.compile("^PR-(\\d+)(-.*)?$").matcher(headName);
Matcher prMatcher = Pattern.compile("^PR-(\\d+)(?:-(.*))?$").matcher(headName);
if (prMatcher.matches()) {
// it's a looking very much like a PR
int number = Integer.parseInt(prMatcher.group(1));
listener.getLogger().format("Attempting to resolve %s as pull request %d%n", headName, number);
try {
GHPullRequest pr = ghRepository.getPullRequest(number);
if (pr != null && context.wantPRs()) {
if (pr != null) {
boolean fork = !ghRepository.getOwner().equals(pr.getHead().getUser());
Set<ChangeRequestCheckoutStrategy> strategies = fork
? context.forkPRStrategies()
: context.originPRStrategies();
Set<ChangeRequestCheckoutStrategy> strategies;
if (context.wantPRs()) {
strategies = fork
? context.forkPRStrategies()
: context.originPRStrategies();
} else {
// if not configured, we go with merge
strategies = EnumSet.of(ChangeRequestCheckoutStrategy.MERGE);
}
ChangeRequestCheckoutStrategy strategy;
if (prMatcher.group(2) == null) {
if (strategies.size() == 1) {
strategy = strategies.iterator().next();
} else {
// invalid name
listener.getLogger().format(
"Resolved %s as pull request %d but indeterminate checkout strategy, "
+ "please try %s or %s%n",
headName,
number,
headName + "-" + ChangeRequestCheckoutStrategy.HEAD.name(),
headName + "-" + ChangeRequestCheckoutStrategy.MERGE.name()
);
return null;
}
} else {
@@ -1189,6 +1205,15 @@ protected SCMRevision retrieve(@NonNull String headName, @NonNull TaskListener l
}
if (strategy == null) {
// invalid name;
listener.getLogger().format(
"Resolved %s as pull request %d but unknown checkout strategy %s, "
+ "please try %s or %s%n",
headName,
number,
prMatcher.group(2),
headName + "-" + ChangeRequestCheckoutStrategy.HEAD.name(),
headName + "-" + ChangeRequestCheckoutStrategy.MERGE.name()
);
return null;
}
}
@@ -1201,30 +1226,54 @@ protected SCMRevision retrieve(@NonNull String headName, @NonNull TaskListener l
GHRef mergeRef = ghRepository.getRef(
"heads/" + pr.getBase().getRef()
);
listener.getLogger().format(
"Resolved %s as pull request %d at revision %s merged onto %s%n",
headName,
number,
pr.getHead().getSha(),
pr.getBase().getSha()
);
return new PullRequestSCMRevision(head,
mergeRef.getObject().getSha(),
pr.getHead().getSha());
default:
listener.getLogger().format(
"Resolved %s as pull request %d at revision %s%n",
headName,
number,
pr.getHead().getSha()
);
return new PullRequestSCMRevision(head, pr.getBase().getSha(),
pr.getHead().getSha());
}

} else {
return null;
listener.getLogger().format(
"Could not resolve %s as pull request %d%n",
headName,
number
);
}
} catch (FileNotFoundException e) {
// maybe some ****er created a branch or a tag called PR-_
listener.getLogger().format(
"Could not resolve %s as pull request %d%n",
headName,
number
);
}
}
try {
listener.getLogger().format("Attempting to resolve %s as a branch%n", headName);
GHBranch branch = ghRepository.getBranch(headName);
if (branch != null) {
listener.getLogger().format("Resolved %s as branch %s at revision %s%n", headName, branch.getName(), branch.getSHA1());
return new SCMRevisionImpl(new BranchSCMHead(headName), branch.getSHA1());
}
} catch (FileNotFoundException e) {
// maybe it's a tag
}
try {
listener.getLogger().format("Attempting to resolve %s as a tag%n", headName);
GHRef tag = ghRepository.getRef("tags/" + headName);
if (tag != null) {
long tagDate = 0L;
@@ -1247,11 +1296,19 @@ protected SCMRevision retrieve(@NonNull String headName, @NonNull TaskListener l
// we just need enough of a date value to allow for probing
}
}
listener.getLogger().format("Resolved %s as tag %s at revision %s%n", headName, headName,
tagSha);
return new GitTagSCMRevision(new GitHubTagSCMHead(headName, tagDate), tagSha);
}
} catch (FileNotFoundException e) {
// ok it doesn't exist
}
listener.error("Could not resolve %s", headName);

// TODO try and resolve as a revision, but right now we'd need to know what branch the revision belonged to
// once GitSCMSource has support for arbitrary refs, we could just use that... but given that
// GitHubSCMBuilder constructs the refspec based on the branch name, without a specific "arbitrary ref"
// SCMHead subclass we cannot do anything here
return null;
} finally {
Connector.release(github);

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