[FIXED JENKINS-22318] Added an empty choice option to FilenameChoiceL…

…istProvider.

src/main/java/jp/ikedam/jenkins/plugins/extensible_choice_parameter/FilenameChoiceListProvider.java

@@ -45,10 +45,6 @@
 /**
  * Create a choice list from a list of files.
  */
-/**
- * @author yasuke
- *
- */
 public class FilenameChoiceListProvider extends ChoiceListProvider implements Serializable
 {
     private static final long serialVersionUID = 1329937323978223039L;
@@ -76,6 +72,26 @@ public String toString()
         }
     };
 
+    public enum EmptyChoiceType
+    {
+        None(Messages._FilenameChoiceListProvider_EmptyChoiceType_None()),
+        AtTop(Messages._FilenameChoiceListProvider_EmptyChoiceType_AtTop()),
+        AtEnd(Messages._FilenameChoiceListProvider_EmptyChoiceType_AtEnd());
+
+        private Localizable name;
+
+        private EmptyChoiceType(Localizable name)
+        {
+            this.name = name;
+        }
+
+        @Override
+        public String toString()
+        {
+            return name.toString();
+        }
+    }
+
     private final String baseDirPath;
 
     /**
@@ -168,22 +184,40 @@ public boolean isReverseOrder()
         return reverseOrder;
     }
 
+    private final EmptyChoiceType emptyChoiceType;
+
+    /**
+     * @return whether and where to put an empty choice.
+     */
+    public EmptyChoiceType getEmptyChoiceType()
+    {
+        return emptyChoiceType;
+    }
+
     /**
      * The constructor called when a user posts a form.
      * 
      * @param baseDirPath a path to the directory to scan.
      * @param includePattern a pattern of file names to include to the list.
      * @param excludePattern a pattern of file names to exclude from the list.
      * @param scanType a type of files to list.
+     * @param emptyChoiceType whether and where to put an empty choice.
      */
     @DataBoundConstructor
-    public FilenameChoiceListProvider(String baseDirPath, String includePattern, String excludePattern, ScanType scanType, boolean reverseOrder)
+    public FilenameChoiceListProvider(String baseDirPath, String includePattern, String excludePattern, ScanType scanType, boolean reverseOrder, EmptyChoiceType emptyChoiceType)
     {
         this.baseDirPath = StringUtils.trim(baseDirPath);
         this.includePattern = StringUtils.trim(includePattern);
         this.excludePattern = StringUtils.trim(excludePattern);
         this.scanType = scanType;
         this.reverseOrder = reverseOrder;
+        this.emptyChoiceType = emptyChoiceType;
+    }
+
+    @Deprecated
+    public FilenameChoiceListProvider(String baseDirPath, String includePattern, String excludePattern, ScanType scanType, boolean reverseOrder)
+    {
+        this(baseDirPath, includePattern, excludePattern, scanType, reverseOrder, EmptyChoiceType.None);
     }
 
     /**
@@ -215,7 +249,8 @@ public FilenameChoiceListProvider(String baseDirPath, String includePattern, Str
             String includePattern,
             String excludePattern,
             ScanType scanType,
-            boolean reverseOrder
+            boolean reverseOrder,
+            EmptyChoiceType emptyChoiceType
     )
     {
         if(baseDir == null || !baseDir.exists() || !baseDir.isDirectory())
@@ -285,9 +320,38 @@ public FilenameChoiceListProvider(String baseDirPath, String includePattern, Str
             }
         }
 
+        if(emptyChoiceType == null)
+        {
+            emptyChoiceType = EmptyChoiceType.None;
+        }
+
+        switch(emptyChoiceType)
+        {
+        case None:
+            break;
+        case AtTop:
+            ret.add(0, "");
+            break;
+        case AtEnd:
+            ret.add("");
+            break;
+        }
+
         return ret;
     }
 
+    @Deprecated
+    protected static List<String> getFileList(
+            File baseDir,
+            String includePattern,
+            String excludePattern,
+            ScanType scanType,
+            boolean reverseOrder
+    )
+    {
+        return getFileList(baseDir, includePattern, excludePattern, scanType, reverseOrder, EmptyChoiceType.None);
+    }
+
     /**
      * For backward compatibility.
      * 
@@ -323,7 +387,8 @@ public FilenameChoiceListProvider(String baseDirPath, String includePattern, Str
                getIncludePattern(),
                getExcludePattern(),
                getScanType(),
-               isReverseOrder()
+               isReverseOrder(),
+               getEmptyChoiceType()
        );
     }
 
@@ -418,15 +483,17 @@ public FormValidation doTest(
                 @QueryParameter String includePattern,
                 @QueryParameter String excludePattern,
                 @QueryParameter ScanType scanType,
-                @QueryParameter boolean reverseOrder
+                @QueryParameter boolean reverseOrder,
+                @QueryParameter EmptyChoiceType emptyChoiceType
         )
         {
             List<String> fileList = getFileList(
                     getBaseDir(baseDirPath),
                     includePattern,
                     excludePattern,
                     scanType,
-                    reverseOrder
+                    reverseOrder,
+                    emptyChoiceType
             );
 
             if(fileList.isEmpty())

src/main/resources/jp/ikedam/jenkins/plugins/extensible_choice_parameter/FilenameChoiceListProvider/config.jelly

@@ -37,6 +37,9 @@ THE SOFTWARE.
     <f:entry title="${%Reverse Order}" field="reverseOrder">
         <f:checkbox />
     </f:entry>
+    <f:entry title="${%Empty Choice}" field="emptyChoiceType">
+        <f:enum>${it}</f:enum>
+    </f:entry>
     <f:validateButton
         method="test"
         title="${%List Files Now}"

src/main/resources/jp/ikedam/jenkins/plugins/extensible_choice_parameter/FilenameChoiceListProvider/help-emptyChoiceType.html

@@ -0,0 +1,3 @@
+<div>
+Adds an empty choice to the specified place.
+</div>

src/main/resources/jp/ikedam/jenkins/plugins/extensible_choice_parameter/FilenameChoiceListProvider/help-emptyChoiceType_ja.html

@@ -0,0 +1,3 @@
+<div>
+指定の場所に空の選択肢を追加します。
+</div>

src/main/resources/jp/ikedam/jenkins/plugins/extensible_choice_parameter/Messages.properties

@@ -36,6 +36,9 @@ FilenameChoiceListProvider.ScanType.FileAndDirectory=File and Directory
 FilenameChoiceListProvider.BaseDirPath.empty=Required
 FilenameChoiceListProvider.BaseDirPath.notfound=Specified directory does not found.
 FilenameChoiceListProvider.IncludePattern.empty=Required
+FilenameChoiceListProvider.EmptyChoiceType.None=No emtpy choice
+FilenameChoiceListProvider.EmptyChoiceType.AtTop=At the top of choices
+FilenameChoiceListProvider.EmptyChoiceType.AtEnd=At the end of choices
 AddEditedChoiceListProvider.WhenToAdd.Triggered=triggered
 AddEditedChoiceListProvider.WhenToAdd.Completed=completed
 AddEditedChoiceListProvider.WhenToAdd.CompletedStable=completed stable

src/main/resources/jp/ikedam/jenkins/plugins/extensible_choice_parameter/Messages_ja.properties

@@ -53,6 +53,12 @@ FilenameChoiceListProvider.BaseDirPath.empty=\u5165\u529b\u3057\u3066\u304f\u306
 FilenameChoiceListProvider.BaseDirPath.notfound=\u6307\u5b9a\u3055\u308c\u305f\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u304c\u898b\u3064\u304b\u308a\u307e\u305b\u3093
 # FilenameChoiceListProvider.IncludePattern.empty=入力してください
 FilenameChoiceListProvider.IncludePattern.empty=\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044
+# FilenameChoiceListProvider.EmptyChoiceType.None=なし
+FilenameChoiceListProvider.EmptyChoiceType.None=\u306a\u3057
+# FilenameChoiceListProvider.EmptyChoiceType.AtTop=選択肢の先頭
+FilenameChoiceListProvider.EmptyChoiceType.AtTop=\u9078\u629e\u80a2\u306e\u5148\u982d
+# FilenameChoiceListProvider.EmptyChoiceType.AtEnd=選択肢の末尾
+FilenameChoiceListProvider.EmptyChoiceType.AtEnd=\u9078\u629e\u80a2\u306e\u672b\u5c3e
 # AddEditedChoiceListProvider.WhenToAdd.Triggered=ビルド開始時
 AddEditedChoiceListProvider.WhenToAdd.Triggered=\u30d3\u30eb\u30c9\u958b\u59cb\u6642
 # AddEditedChoiceListProvider.WhenToAdd.Completed=ビルド完了時