Label abbreviation feature is dead; kill it

Note: because this feature wasn't used at all, there is no need for
new schema version with automagic gerrit.config clean up.

Bug: issue 2618
Change-Id: Ic129ca43c21c1955b842d61b84c515d622711ced

Documentation/config-labels.txt

@@ -183,14 +183,6 @@ range for a user.  In that case the score that will get set in the Reply
 box will be either the lowest or highest score in the permissible range.
 
 
-[[label_abbreviation]]
-=== `label.Label-Name.abbreviation`
-
-An abbreviated name for a label shown as a compact column header, for
-example on project dashboards. Defaults to all the uppercase characters
-in the label name, e.g. `Label-Name` is abbreviated by default as `LN`.
-
-
 [[label_function]]
 === `label.Label-Name.function`
 

gerrit-common/src/main/java/com/google/gerrit/common/data/LabelType.java

@@ -60,7 +60,7 @@ public class LabelType {
     return name;
   }
 
-  public static String defaultAbbreviation(String name) {
+  private static String getAbbreviation(String name) {
     StringBuilder abbr = new StringBuilder();
     for (int i = 0; i < name.length(); i++) {
       char c = name.charAt(i);
@@ -128,7 +128,7 @@ public class LabelType {
     values = sortValues(valueList);
     defaultValue = 0;
 
-    abbreviation = defaultAbbreviation(name);
+    abbreviation = getAbbreviation(name);
     functionName = "MaxWithBlock";
 
     maxNegative = Short.MIN_VALUE;
@@ -151,14 +151,6 @@ public class LabelType {
     return psa.getLabelId().get().equalsIgnoreCase(name);
   }
 
-  public String getAbbreviation() {
-    return abbreviation;
-  }
-
-  public void setAbbreviation(String abbreviation) {
-    this.abbreviation = abbreviation;
-  }
-
   public String getFunctionName() {
     return functionName;
   }

gerrit-server/src/main/java/com/google/gerrit/server/git/ProjectConfig.java

@@ -130,7 +130,6 @@ public class ProjectConfig extends VersionedMetaData {
   private static final String KEY_LOCAL_DEFAULT = "local-default";
 
   private static final String LABEL = "label";
-  private static final String KEY_ABBREVIATION = "abbreviation";
   private static final String KEY_FUNCTION = "function";
   private static final String KEY_DEFAULT_VALUE = "defaultValue";
   private static final String KEY_COPY_MIN_SCORE = "copyMinScore";
@@ -673,10 +672,6 @@ public class ProjectConfig extends VersionedMetaData {
             "Invalid label \"%s\"", name)));
         continue;
       }
-      String abbr = rc.getString(LABEL, name, KEY_ABBREVIATION);
-      if (abbr != null) {
-        label.setAbbreviation(abbr);
-      }
 
       String functionName = Objects.firstNonNull(
           rc.getString(LABEL, name, KEY_FUNCTION), "MaxWithBlock");
@@ -1050,15 +1045,6 @@ public class ProjectConfig extends VersionedMetaData {
       LabelType label = e.getValue();
       toUnset.remove(name);
       rc.setString(LABEL, name, KEY_FUNCTION, label.getFunctionName());
-
-      if (!LabelType.defaultAbbreviation(name)
-          .equals(label.getAbbreviation())) {
-        rc.setString(
-            LABEL, name, KEY_ABBREVIATION, label.getAbbreviation());
-      } else {
-        rc.unset(LABEL, name, KEY_ABBREVIATION);
-      }
-
       rc.setInt(LABEL, name, KEY_DEFAULT_VALUE, label.getDefaultValue());
       if (label.isCopyMinScore()) {
         rc.setBoolean(LABEL, name, KEY_COPY_MIN_SCORE, true);

gerrit-server/src/main/java/com/google/gerrit/server/query/change/EqualsLabelPredicate.java

@@ -103,12 +103,6 @@ class EqualsLabelPredicate extends IndexPredicate<ChangeData> {
         return lt;
       }
     }
-
-    for (LabelType lt : types.getLabelTypes()) {
-      if (toFind.equalsIgnoreCase(lt.getAbbreviation())) {
-        return lt;
-      }
-    }
     return null;
   }
 

gerrit-server/src/main/java/com/google/gerrit/server/schema/AllProjectsCreator.java

@@ -215,7 +215,6 @@ public class AllProjectsCreator {
         new LabelValue((short) 0, "No score"),
         new LabelValue((short) -1, "I would prefer this is not merged as is"),
         new LabelValue((short) -2, "This shall not be merged")));
-    type.setAbbreviation("CR");
     type.setCopyMinScore(true);
     c.getLabelSections().put(type.getName(), type);
     return type;

gerrit-server/src/main/java/com/google/gerrit/server/schema/Schema_77.java

@@ -203,8 +203,7 @@ public class Schema_77 extends SchemaVersion {
     Statement catStmt = ((JdbcSchema) db).getConnection().createStatement();
     try {
       ResultSet catRs = catStmt.executeQuery(
-          "SELECT category_id, name, abbreviated_name, function_name, "
-          + " copy_min_score"
+          "SELECT category_id, name, function_name, copy_min_score"
           + " FROM approval_categories"
           + " ORDER BY position, name");
       PreparedStatement valStmt = ((JdbcSchema) db).getConnection().prepareStatement(
@@ -224,7 +223,6 @@ public class Schema_77 extends SchemaVersion {
           LegacyLabelType type =
               new LegacyLabelType(getLabelName(catRs.getString("name")), values);
           type.setId(id);
-          type.setAbbreviation(catRs.getString("abbreviated_name"));
           type.setFunctionName(catRs.getString("function_name"));
           type.setCopyMinScore("Y".equals(catRs.getString("copy_min_score")));
           types.add(type);

gerrit-server/src/test/java/com/google/gerrit/server/schema/SchemaCreatorTest.java

@@ -128,7 +128,6 @@ public class SchemaCreatorTest {
     LabelType codeReview = getLabelTypes().byLabel("Code-Review");
     assertNotNull(codeReview);
     assertEquals("Code-Review", codeReview.getName());
-    assertEquals("CR", codeReview.getAbbreviation());
     assertEquals(0, codeReview.getDefaultValue());
     assertEquals("MaxWithBlock", codeReview.getFunctionName());
     assertTrue(codeReview.isCopyMinScore());