Package com.google.gerrit.server.restapi.change

Class ApplyPatchUtil

java.lang.Object

com.google.gerrit.server.restapi.change.ApplyPatchUtil

public final class ApplyPatchUtil
extends Object

Utility for applying a patch.

Method Summary

Modifier and Type	Method	Description
static org.eclipse.jgit.lib.ObjectId	applyPatch(org.eclipse.jgit.lib.Repository repo, org.eclipse.jgit.lib.ObjectInserter oi, ApplyPatchInput input, org.eclipse.jgit.revwalk.RevCommit mergeTip)	Applies the given patch on top of the merge tip, using the given object inserter.
static String	buildCommitMessage(String message, List<org.eclipse.jgit.revwalk.FooterLine> footerLines, String originalPatch, String resultPatch)	Build commit message for commits with applied patch.
static String	getResultPatch(org.eclipse.jgit.lib.Repository repo, org.eclipse.jgit.lib.ObjectReader reader, org.eclipse.jgit.revwalk.RevCommit baseCommit, org.eclipse.jgit.revwalk.RevTree resultTree)	Fetch the patch of the result tree.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

applyPatch

public static org.eclipse.jgit.lib.ObjectId applyPatch(org.eclipse.jgit.lib.Repository repo,
                                                       org.eclipse.jgit.lib.ObjectInserter oi,
                                                       ApplyPatchInput input,
                                                       org.eclipse.jgit.revwalk.RevCommit mergeTip)
                                                throws IOException,
                                                       RestApiException

Applies the given patch on top of the merge tip, using the given object inserter.

Parameters:

repo - to apply the patch in

oi - to operate with

input - the patch for applying

mergeTip - the tip to apply the patch on

Returns:

the tree ID with the applied patch

Throws:

IOException - if unable to create the jgit PatchApplier object

RestApiException - for any other failure

buildCommitMessage

public static String buildCommitMessage(String message,
                                        List<org.eclipse.jgit.revwalk.FooterLine> footerLines,
                                        String originalPatch,
                                        String resultPatch)
                                 throws BadRequestException

Build commit message for commits with applied patch.

Message structure:

1. Provided message.
2. In case the result change's patch is not the same as the original patch - a warning message which includes the diff; as well as the original patch's header if available, or the full original patch otherwise.
3. The provided footerLines, if any.

Parameters:

message - the first message piece, excluding footers

footerLines - footer lines to append to the message

originalPatch - to compare the result patch to

resultPatch - to validate accuracy for

Returns:

the commit message

Throws:

BadRequestException - if the commit message cannot be sanitized

getResultPatch

public static String getResultPatch(org.eclipse.jgit.lib.Repository repo,
                                    org.eclipse.jgit.lib.ObjectReader reader,
                                    org.eclipse.jgit.revwalk.RevCommit baseCommit,
                                    org.eclipse.jgit.revwalk.RevTree resultTree)
                             throws IOException

Fetch the patch of the result tree.

Parameters:

repo - in which the patch was applied

reader - for the repo objects, including resultTree

baseCommit - to generate patch against

resultTree - to generate the patch for

Returns:

the result patch

Throws:

IOException - if the result patch cannot be written