Remove "show readme" flag in favor of automatic detection

Automatic detection also will now also display a plain text "readme"
or "readme.txt" file.

Change-Id: Id6be729bdc469e7a5cfd1f4144df340a6b93475e

releases.moxie

 	- Updated default binary and Lucene ignore extensions
 	- Change the WAR baseFolder context parameter to a JNDI env-entry to improve enterprise deployments
 	- Removed internal Gitblit ref exclusions in the upload pack
+	- Removed "show readme" setting in favor of automatic detection
+	- Support plain text "readme" files
     additions:
 	- Added branch graph image servlet based on EGit's branch graph renderer (issue-194)
 	- Added option to render Markdown commit messages (issue-203)

src/main/java/com/gitblit/GitBlit.java

 			model.verifyCommitter = getConfig(config, "verifyCommitter", false);
 			model.showRemoteBranches = getConfig(config, "showRemoteBranches", hasOrigin);
 			model.isFrozen = getConfig(config, "isFrozen", false);
-			model.showReadme = getConfig(config, "showReadme", false);
 			model.skipSizeCalculation = getConfig(config, "skipSizeCalculation", false);
 			model.skipSummaryMetrics = getConfig(config, "skipSummaryMetrics", false);
 			model.commitMessageRenderer = CommitMessageRenderer.fromName(getConfig(config, "commitMessageRenderer",
 		config.setBoolean(Constants.CONFIG_GITBLIT, null, "verifyCommitter", repository.verifyCommitter);
 		config.setBoolean(Constants.CONFIG_GITBLIT, null, "showRemoteBranches", repository.showRemoteBranches);
 		config.setBoolean(Constants.CONFIG_GITBLIT, null, "isFrozen", repository.isFrozen);
-		config.setBoolean(Constants.CONFIG_GITBLIT, null, "showReadme", repository.showReadme);
 		config.setBoolean(Constants.CONFIG_GITBLIT, null, "skipSizeCalculation", repository.skipSizeCalculation);
 		config.setBoolean(Constants.CONFIG_GITBLIT, null, "skipSummaryMetrics", repository.skipSummaryMetrics);
 		config.setString(Constants.CONFIG_GITBLIT, null, "federationStrategy",

src/main/java/com/gitblit/client/EditRepositoryDialog.java

 
 	private JCheckBox showRemoteBranches;
 
-	private JCheckBox showReadme;
-
 	private JCheckBox skipSizeCalculation;
 
 	private JCheckBox skipSummaryMetrics;
 		showRemoteBranches = new JCheckBox(
 				Translation.get("gb.showRemoteBranchesDescription"),
 				anRepository.showRemoteBranches);
-		showReadme = new JCheckBox(Translation.get("gb.showReadmeDescription"),
-				anRepository.showReadme);
 		skipSizeCalculation = new JCheckBox(
 				Translation.get("gb.skipSizeCalculationDescription"),
 				anRepository.skipSizeCalculation);
 		.add(newFieldPanel(Translation.get("gb.enableIncrementalPushTags"), useIncrementalPushTags));
 		fieldsPanel.add(newFieldPanel(Translation.get("gb.showRemoteBranches"),
 				showRemoteBranches));
-		fieldsPanel.add(newFieldPanel(Translation.get("gb.showReadme"),
-				showReadme));
 		fieldsPanel
 				.add(newFieldPanel(Translation.get("gb.skipSizeCalculation"),
 						skipSizeCalculation));
 		repository.useDocs = useDocs.isSelected();
 		repository.useIncrementalPushTags = useIncrementalPushTags.isSelected();
 		repository.showRemoteBranches = showRemoteBranches.isSelected();
-		repository.showReadme = showReadme.isSelected();
 		repository.skipSizeCalculation = skipSizeCalculation.isSelected();
 		repository.skipSummaryMetrics = skipSummaryMetrics.isSelected();
 		repository.maxActivityCommits = (Integer) maxActivityCommits.getSelectedItem();

src/main/java/com/gitblit/models/RepositoryModel.java

 	public AuthorizationControl authorizationControl;
 	public boolean allowAuthenticated;
 	public boolean isFrozen;
-	public boolean showReadme;
 	public FederationStrategy federationStrategy;
 	public List<String> federationSets;
 	public boolean isFederated;
 		clone.accessRestriction = AccessRestrictionType.PUSH;
 		clone.authorizationControl = AuthorizationControl.NAMED;
 		clone.federationStrategy = federationStrategy;
-		clone.showReadme = showReadme;
 		clone.showRemoteBranches = false;
 		clone.allowForks = false;
 		clone.useDocs = useDocs;

src/main/java/com/gitblit/utils/MarkdownUtils.java

  */
 public class MarkdownUtils {
 
+	/**
+	 * Returns the html version of the plain source text.
+	 *
+	 * @param text
+	 * @return html version of plain text
+	 * @throws java.text.ParseException
+	 */
+	public static String transformPlainText(String text) {
+		// url auto-linking
+		text = text.replaceAll("((http|https)://[0-9A-Za-z-_=\\?\\.\\$#&/]*)", "<a href=\"$1\">$1</a>");
+		String html = "<pre>" + text + "</pre>";
+		return html;
+	}
+
+
 	/**
 	 * Returns the html version of the markdown source text.
 	 *

src/main/java/com/gitblit/wicket/pages/EditRepositoryPage.html

 				<tr><th><wicket:message key="gb.enableDocs"></wicket:message></th><td class="edit"><label class="checkbox"><input type="checkbox" wicket:id="useDocs" tabindex="8" /> &nbsp;<span class="help-inline"><wicket:message key="gb.useDocsDescription"></wicket:message></span></label></td></tr>
 				<tr><th><wicket:message key="gb.enableIncrementalPushTags"></wicket:message></th><td class="edit"><label class="checkbox"><input type="checkbox" wicket:id="useIncrementalPushTags" tabindex="8" /> &nbsp;<span class="help-inline"><wicket:message key="gb.useIncrementalPushTagsDescription"></wicket:message></span></label></td></tr>
 				<tr><th><wicket:message key="gb.showRemoteBranches"></wicket:message></th><td class="edit"><label class="checkbox"><input type="checkbox" wicket:id="showRemoteBranches" tabindex="9" /> &nbsp;<span class="help-inline"><wicket:message key="gb.showRemoteBranchesDescription"></wicket:message></span></label></td></tr>
-				<tr><th><wicket:message key="gb.showReadme"></wicket:message></th><td class="edit"><label class="checkbox"><input type="checkbox" wicket:id="showReadme" tabindex="10" /> &nbsp;<span class="help-inline"><wicket:message key="gb.showReadmeDescription"></wicket:message></span></label></td></tr>
-				<tr><th><wicket:message key="gb.skipSizeCalculation"></wicket:message></th><td class="edit"><label class="checkbox"><input type="checkbox" wicket:id="skipSizeCalculation" tabindex="11" /> &nbsp;<span class="help-inline"><wicket:message key="gb.skipSizeCalculationDescription"></wicket:message></span></label></td></tr>
-				<tr><th><wicket:message key="gb.skipSummaryMetrics"></wicket:message></th><td class="edit"><label class="checkbox"><input type="checkbox" wicket:id="skipSummaryMetrics" tabindex="12" /> &nbsp;<span class="help-inline"><wicket:message key="gb.skipSummaryMetricsDescription"></wicket:message></span></label></td></tr>
-				<tr><th><wicket:message key="gb.maxActivityCommits"></wicket:message></th><td class="edit"><select class="span2" wicket:id="maxActivityCommits" tabindex="13" /> &nbsp;<span class="help-inline"><wicket:message key="gb.maxActivityCommitsDescription"></wicket:message></span></td></tr>
-				<tr><th><wicket:message key="gb.metricAuthorExclusions"></wicket:message></th><td class="edit"><input class="span8" type="text" wicket:id="metricAuthorExclusions" size="40" tabindex="14" /></td></tr>
-				<tr><th><wicket:message key="gb.commitMessageRenderer"></wicket:message></th><td class="edit"><select class="span2" wicket:id="commitMessageRenderer" tabindex="15" /></td></tr>
+				<tr><th><wicket:message key="gb.skipSizeCalculation"></wicket:message></th><td class="edit"><label class="checkbox"><input type="checkbox" wicket:id="skipSizeCalculation" tabindex="10" /> &nbsp;<span class="help-inline"><wicket:message key="gb.skipSizeCalculationDescription"></wicket:message></span></label></td></tr>
+				<tr><th><wicket:message key="gb.skipSummaryMetrics"></wicket:message></th><td class="edit"><label class="checkbox"><input type="checkbox" wicket:id="skipSummaryMetrics" tabindex="11" /> &nbsp;<span class="help-inline"><wicket:message key="gb.skipSummaryMetricsDescription"></wicket:message></span></label></td></tr>
+				<tr><th><wicket:message key="gb.maxActivityCommits"></wicket:message></th><td class="edit"><select class="span2" wicket:id="maxActivityCommits" tabindex="12" /> &nbsp;<span class="help-inline"><wicket:message key="gb.maxActivityCommitsDescription"></wicket:message></span></td></tr>
+				<tr><th><wicket:message key="gb.metricAuthorExclusions"></wicket:message></th><td class="edit"><input class="span8" type="text" wicket:id="metricAuthorExclusions" size="40" tabindex="13" /></td></tr>
+				<tr><th><wicket:message key="gb.commitMessageRenderer"></wicket:message></th><td class="edit"><select class="span2" wicket:id="commitMessageRenderer" tabindex="14" /></td></tr>
 				<tr><th colspan="2"><hr/></th></tr>
-				<tr><th><wicket:message key="gb.mailingLists"></wicket:message></th><td class="edit"><input class="span8" type="text" wicket:id="mailingLists" size="40" tabindex="16" /></td></tr>
+				<tr><th><wicket:message key="gb.mailingLists"></wicket:message></th><td class="edit"><input class="span8" type="text" wicket:id="mailingLists" size="40" tabindex="15" /></td></tr>
 			</tbody>
 		</table>
 		</div>
 		<div class="tab-pane" id="permissions">
 			<table class="plain">
 				<tbody class="settings">
-					<tr><th><wicket:message key="gb.owners"></wicket:message></th><td class="edit"><span wicket:id="owners" tabindex="17" /> </td></tr>
+					<tr><th><wicket:message key="gb.owners"></wicket:message></th><td class="edit"><span wicket:id="owners" tabindex="16" /> </td></tr>
 					<tr><th colspan="2"><hr/></th></tr>
-					<tr><th><wicket:message key="gb.accessRestriction"></wicket:message></th><td class="edit"><select class="span4" wicket:id="accessRestriction" tabindex="18" /></td></tr>
+					<tr><th><wicket:message key="gb.accessRestriction"></wicket:message></th><td class="edit"><select class="span4" wicket:id="accessRestriction" tabindex="17" /></td></tr>
 					<tr><th colspan="2"><hr/></th></tr>
 					<tr><th><wicket:message key="gb.authorizationControl"></wicket:message></th><td style="padding:2px;"><span class="authorizationControl" wicket:id="authorizationControl"></span></td></tr>
 					<tr><th colspan="2"><hr/></th></tr>
-					<tr><th><wicket:message key="gb.isFrozen"></wicket:message></th><td class="edit"><label class="checkbox"><input type="checkbox" wicket:id="isFrozen" tabindex="19" /> &nbsp;<span class="help-inline"><wicket:message key="gb.isFrozenDescription"></wicket:message></span></label></td></tr>
-					<tr><th><wicket:message key="gb.allowForks"></wicket:message></th><td class="edit"><label class="checkbox"><input type="checkbox" wicket:id="allowForks" tabindex="20" /> &nbsp;<span class="help-inline"><wicket:message key="gb.allowForksDescription"></wicket:message></span></label></td></tr>
-					<tr><th><wicket:message key="gb.verifyCommitter"></wicket:message></th><td class="edit"><label class="checkbox"><input type="checkbox" wicket:id="verifyCommitter" tabindex="21" /> &nbsp;<span class="help-inline"><wicket:message key="gb.verifyCommitterDescription"></wicket:message></span><br/><span class="help-inline" style="padding-left:10px;"><wicket:message key="gb.verifyCommitterNote"></wicket:message></span></label></td></tr>
+					<tr><th><wicket:message key="gb.isFrozen"></wicket:message></th><td class="edit"><label class="checkbox"><input type="checkbox" wicket:id="isFrozen" tabindex="18" /> &nbsp;<span class="help-inline"><wicket:message key="gb.isFrozenDescription"></wicket:message></span></label></td></tr>
+					<tr><th><wicket:message key="gb.allowForks"></wicket:message></th><td class="edit"><label class="checkbox"><input type="checkbox" wicket:id="allowForks" tabindex="19" /> &nbsp;<span class="help-inline"><wicket:message key="gb.allowForksDescription"></wicket:message></span></label></td></tr>
+					<tr><th><wicket:message key="gb.verifyCommitter"></wicket:message></th><td class="edit"><label class="checkbox"><input type="checkbox" wicket:id="verifyCommitter" tabindex="20" /> &nbsp;<span class="help-inline"><wicket:message key="gb.verifyCommitterDescription"></wicket:message></span><br/><span class="help-inline" style="padding-left:10px;"><wicket:message key="gb.verifyCommitterNote"></wicket:message></span></label></td></tr>
 					<tr><th colspan="2"><hr/></th></tr>
 					<tr><th><wicket:message key="gb.userPermissions"></wicket:message></th><td style="padding:2px;"><span wicket:id="users"></span></td></tr>
 					<tr><th colspan="2"><hr/></th></tr>
 		<div class="tab-pane" id="federation">
 			<table class="plain">
 				<tbody class="settings">
-					<tr><th><wicket:message key="gb.federationStrategy"></wicket:message></th><td class="edit"><select class="span4" wicket:id="federationStrategy" tabindex="22" /></td></tr>
+					<tr><th><wicket:message key="gb.federationStrategy"></wicket:message></th><td class="edit"><select class="span4" wicket:id="federationStrategy" tabindex="21" /></td></tr>
 					<tr><th><wicket:message key="gb.federationSets"></wicket:message></th><td style="padding:2px;"><span wicket:id="federationSets"></span></td></tr>
 				</tbody>
 			</table>

src/main/java/com/gitblit/wicket/pages/EditRepositoryPage.java

 		form.add(new CheckBox("useDocs"));
 		form.add(new CheckBox("useIncrementalPushTags"));
 		form.add(new CheckBox("showRemoteBranches"));
-		form.add(new CheckBox("showReadme"));
 		form.add(new CheckBox("skipSizeCalculation"));
 		form.add(new CheckBox("skipSummaryMetrics"));
 		List<Integer> maxActivityCommits  = Arrays.asList(-1, 0, 25, 50, 75, 100, 150, 200, 250, 500 );

src/main/java/com/gitblit/wicket/pages/RepositoryPage.java

 
 		// conditional links
 		// per-repository extra page links
-		if (model.showReadme || model.useDocs) {
+		if (model.useDocs) {
 			pages.put("docs", new PageRegistration("gb.docs", DocsPage.class, params, true));
 		}
 		if (JGitUtils.getPagesBranch(r) != null) {

src/main/java/com/gitblit/wicket/pages/SummaryPage.html

 			<div wicket:id="readmeContent" class="markdown"></div>
 		</div>
 	</wicket:fragment>
-	
+
+	<wicket:fragment wicket:id="plaintextPanel">
+		<div class="header" style="margin-top:0px;" >
+			<i style="vertical-align: middle;" class="icon-book"></i>
+			<span style="font-weight:bold;vertical-align:middle;" wicket:id="readmeFile"></span>
+		</div>
+		<div style="border:1px solid #ddd;border-radius: 0 0 3px 3px;padding: 20px;">
+			<div wicket:id="readmeContent"></div>
+		</div>
+	</wicket:fragment>	
 	<wicket:fragment wicket:id="ownersFragment">
 		
 	</wicket:fragment>

src/main/java/com/gitblit/wicket/pages/SummaryPage.java

 		add(new TagsPanel("tagsPanel", repositoryName, r, numberRefs).hideIfEmpty());
 		add(new BranchesPanel("branchesPanel", getRepositoryModel(), r, numberRefs, false).hideIfEmpty());
 
-		if (getRepositoryModel().showReadme) {
-			String htmlText = null;
-			String markdownText = null;
-			String readme = null;
-			try {
-				RevCommit head = JGitUtils.getCommit(r, null);
-				List<String> markdownExtensions = GitBlit.getStrings(Keys.web.markdownExtensions);
-				List<PathModel> paths = JGitUtils.getFilesInPath(r, null, head);
-				for (PathModel path : paths) {
-					if (!path.isTree()) {
-						String name = path.name.toLowerCase();
-
-						if (name.startsWith("readme")) {
-							if (name.indexOf('.') > -1) {
-								String ext = name.substring(name.lastIndexOf('.') + 1);
-								if (markdownExtensions.contains(ext)) {
-									readme = path.name;
-									break;
-								}
+		String htmlText = null;
+		String markdownText = null;
+		String readme = null;
+		boolean isMarkdown = false;
+		try {
+			RevCommit head = JGitUtils.getCommit(r, null);
+			List<String> markdownExtensions = GitBlit.getStrings(Keys.web.markdownExtensions);
+			List<PathModel> paths = JGitUtils.getFilesInPath(r, null, head);
+			for (PathModel path : paths) {
+				if (!path.isTree()) {
+					String name = path.name.toLowerCase();
+					if (name.equals("readme") || name.equals("readme.txt")) {
+						readme = path.name;
+						isMarkdown = false;
+					} else if (name.startsWith("readme")) {
+						if (name.indexOf('.') > -1) {
+							String ext = name.substring(name.lastIndexOf('.') + 1);
+							if (markdownExtensions.contains(ext)) {
+								readme = path.name;
+								isMarkdown = true;
+								break;
 							}
 						}
 					}
 				}
-				if (!StringUtils.isEmpty(readme)) {
-					String [] encodings = GitBlit.getEncodings();
-					markdownText = JGitUtils.getStringContent(r, head.getTree(), readme, encodings);
+			}
+			if (!StringUtils.isEmpty(readme)) {
+				String [] encodings = GitBlit.getEncodings();
+				markdownText = JGitUtils.getStringContent(r, head.getTree(), readme, encodings);
+				if (isMarkdown) {
 					htmlText = MarkdownUtils.transformMarkdown(markdownText);
+				} else {
+					htmlText = MarkdownUtils.transformPlainText(markdownText);
 				}
-			} catch (Exception e) {
-				logger.error("failed to transform markdown", e);
-				markdownText = MessageFormat.format("<div class=\"alert alert-error\"><strong>{0}:</strong> {1}</div>{2}", getString("gb.error"), getString("gb.markdownFailure"), markdownText);
-				htmlText = StringUtils.breakLinesForHtml(markdownText);
 			}
-			Fragment fragment = new Fragment("readme", "markdownPanel");
+		} catch (Exception e) {
+			logger.error("failed to transform markdown", e);
+			markdownText = MessageFormat.format("<div class=\"alert alert-error\"><strong>{0}:</strong> {1}</div>{2}", getString("gb.error"), getString("gb.markdownFailure"), markdownText);
+			htmlText = MarkdownUtils.transformPlainText(markdownText);
+		}
+
+		if (StringUtils.isEmpty(htmlText)) {
+			add(new Label("readme").setVisible(false));
+		} else {
+			Fragment fragment = new Fragment("readme", isMarkdown ? "markdownPanel" : "plaintextPanel");
 			fragment.add(new Label("readmeFile", readme));
 			// Add the html to the page
 			Component content = new Label("readmeContent", htmlText).setEscapeModelStrings(false);
 			fragment.add(content.setVisible(!StringUtils.isEmpty(htmlText)));
 			add(fragment);
-		} else {
-			add(new Label("readme").setVisible(false));
 		}
 
 		// Display an activity line graph