protected ChangeLogScmResult executeChangeLogCommand()

in maven-scm-providers/maven-scm-providers-git/maven-scm-provider-jgit/src/main/java/org/apache/maven/scm/provider/git/jgit/command/changelog/JGitChangeLogCommand.java [102:160]

47 lines of code
11 McCabe index (conditional complexity)


    protected ChangeLogScmResult executeChangeLogCommand(
            ScmProviderRepository repo,
            ScmFileSet fileSet,
            Date startDate,
            Date endDate,
            ScmBranch branch,
            String datePattern,
            ScmVersion startVersion,
            ScmVersion endVersion,
            ScmVersion version)
            throws ScmException {
        Git git = null;
        boolean isARangeChangeLog = startVersion != null || endVersion != null;

        try {
            git = JGitUtils.openRepo(fileSet.getBasedir());

            boolean versionOnly = startVersion == null && endVersion == null && version != null;

            String startRev;
            String endRev;

            if (versionOnly) {
                startRev = null;
                endRev = version.getName();
            } else {
                startRev = startVersion != null ? startVersion.getName() : (isARangeChangeLog ? "HEAD" : null);
                endRev = endVersion != null ? endVersion.getName() : (isARangeChangeLog ? "HEAD" : null);
            }

            List<ChangeEntry> gitChanges =
                    this.whatchanged(git.getRepository(), null, startRev, endRev, startDate, endDate, -1);

            List<ChangeSet> modifications = new ArrayList<>(gitChanges.size());

            for (ChangeEntry change : gitChanges) {
                ChangeSet scmChange = new ChangeSet();

                scmChange.setAuthor(change.getAuthorName());
                scmChange.setComment(change.getBody());
                scmChange.setDate(change.getAuthorDate());
                scmChange.setRevision(change.getCommitHash());
                scmChange.setTags(change.getTags());
                // X TODO scmChange.setFiles( change.get )

                modifications.add(scmChange);
            }

            ChangeLogSet changeLogSet = new ChangeLogSet(modifications, startDate, endDate);
            changeLogSet.setStartVersion(startVersion);
            changeLogSet.setEndVersion(endVersion);

            return new ChangeLogScmResult("JGit changelog", changeLogSet);
        } catch (Exception e) {
            throw new ScmException("JGit changelog failure!", e);
        } finally {
            JGitUtils.closeRepo(git);
        }
    }