Calculate repository color from name. Show swatch on repository list.

distrib/gitblit.properties

@@ -228,6 +228,12 @@ web.repositoryListType = grouped
 # SINCE 0.5.0
 web.repositoryRootGroupName = main
 
+# Display the repository swatch color next to the repository name link in the 
+# repositories list. 
+#
+# SINCE 0.8.0
+web.repositoryListSwatches = true
+
 # Choose the diff presentation style: gitblt, gitweb, or plain
 #
 # SINCE 0.5.0

resources/bootstrap.gb.css

@@ -160,6 +160,15 @@ span.link em, div.link span em {
 	font-size: 11px;	
 }
 
+span.repositorySwatch {
+	border-radius: 3px;
+	padding: 2px 5px;	
+	color: #ffffff;
+}
+span.repositorySwatch a {
+	color: inherit;
+}
+
 img.inlineIcon {
 	padding-left: 1px;
 	padding-right: 1px;

src/com/gitblit/utils/StringUtils.java

@@ -33,7 +33,7 @@ import java.util.regex.PatternSyntaxException;
 public class StringUtils {
 
 	public static final String MD5_TYPE = "MD5:";
-	
+
 	public static final String COMBINED_MD5_TYPE = "CMD5:";
 
 	/**
@@ -443,4 +443,48 @@ public class StringUtils {
 			}
 		});
 	}
-}
+
+	public static String getColor(String value) {
+		int cs = 0;
+		for (char c : getMD5(value.toLowerCase()).toCharArray()) {
+			cs += c;
+		}
+		int n = (cs % 360);		
+		float hue = ((float) n) / 360;
+		return hsvToRgb(hue, 0.90f, 0.65f);
+	}
+
+	public static String hsvToRgb(float hue, float saturation, float value) {
+		int h = (int) (hue * 6);
+		float f = hue * 6 - h;
+		float p = value * (1 - saturation);
+		float q = value * (1 - f * saturation);
+		float t = value * (1 - (1 - f) * saturation);
+
+		switch (h) {
+		case 0:
+			return rgbToString(value, t, p);
+		case 1:
+			return rgbToString(q, value, p);
+		case 2:
+			return rgbToString(p, value, t);
+		case 3:
+			return rgbToString(p, q, value);
+		case 4:
+			return rgbToString(t, p, value);
+		case 5:
+			return rgbToString(value, p, q);
+		default:
+			throw new RuntimeException(
+					"Something went wrong when converting from HSV to RGB. Input was " + hue + ", "
+							+ saturation + ", " + value);
+		}
+	}
+
+	public static String rgbToString(float r, float g, float b) {
+		String rs = Integer.toHexString((int) (r * 256));
+		String gs = Integer.toHexString((int) (g * 256));
+		String bs = Integer.toHexString((int) (b * 256));
+		return "#" + rs + gs + bs;
+	}
+}

src/com/gitblit/wicket/panels/RepositoriesPanel.html

@@ -71,7 +71,7 @@
 	</wicket:fragment>
 		
 	<wicket:fragment wicket:id="repositoryRow">
-        <td class="left" style="padding-left:10px;" ><div class="list" wicket:id="repositoryName">[repository name]</div></td>
+        <td class="left" style="padding-left:3px;" ><span class="repositorySwatch" wicket:id="repositorySwatch"></span> <span style="padding-left:3px;" wicket:id="repositoryName">[repository name]</span></td>
         <td><div class="list" wicket:id="repositoryDescription">[repository description]</div></td>
         <td class="author"><span wicket:id="repositoryOwner">[repository owner]</span></td>
         <td style="text-align: right;padding-right:10px;"><img class="inlineIcon" wicket:id="ticketsIcon" /><img class="inlineIcon" wicket:id="docsIcon" /><img class="inlineIcon" wicket:id="frozenIcon" /><img class="inlineIcon" wicket:id="federatedIcon" /><img class="inlineIcon" wicket:id="accessRestrictionIcon" /></td>

src/com/gitblit/wicket/panels/RepositoriesPanel.java

@@ -120,6 +120,7 @@ public class RepositoriesPanel extends BasePanel {
 		}
 
 		final String baseUrl = WicketUtils.getGitblitURL(getRequest());
+		final boolean showSwatch = GitBlit.getBoolean(Keys.web.repositoryListSwatches, true);
 
 		DataView<RepositoryModel> dataView = new DataView<RepositoryModel>("row", dp) {
 			private static final long serialVersionUID = 1L;
@@ -146,13 +147,19 @@ public class RepositoriesPanel extends BasePanel {
 				}
 				Fragment row = new Fragment("rowContent", "repositoryRow", this);
 				item.add(row);
-				
+
 				// try to strip group name for less cluttered list
 				String repoName = entry.name;
 				if (!StringUtils.isEmpty(currGroupName) && (repoName.indexOf('/') > -1)) {
 					repoName = repoName.substring(currGroupName.length() + 1);
 				}
-				
+
+				// repository swatch
+				Label swatch = new Label("repositorySwatch", " ");
+				WicketUtils.setCssBackground(swatch, entry.name);
+				row.add(swatch);
+				swatch.setVisible(showSwatch);
+
 				if (entry.hasCommits && linksActive) {
 					PageParameters pp = WicketUtils.newRepositoryParameter(entry.name);
 					row.add(new LinkPanel("repositoryName", "list", repoName, SummaryPage.class, pp));