Merge pull request #37 from joshbeck/master

Added support for reading file lists from stdin, correctly this time

cli/cmdlineparser.cpp

@@ -45,11 +45,21 @@ static void AddFilesToList(const std::string& FileList, std::vector<std::string>
     // xml is a bonus then, since we can easily extend it
     // we need a good parser then -> suggestion : TinyXml
     // drawback : creates a dependency
-    std::ifstream Files(FileList.c_str());
+    std::istream *Files;
+    std::ifstream Infile;
+    if (FileList.compare("-") == 0) // read from stdin
+    {
+        Files = &std::cin;
+    }
+    else
+    {
+        Infile.open(FileList.c_str());
+        Files = &Infile;
+    }
     if (Files)
     {
         std::string FileName;
-        while (std::getline(Files, FileName)) // next line
+        while (std::getline(*Files, FileName)) // next line
         {
             if (!FileName.empty())
             {
@@ -720,7 +730,8 @@ void CmdLineParser::PrintHelp()
               "                         Used when certain messages should be displayed but\n"
               "                         should not cause a non-zero exitcode.\n"
               "    --file-list=<file>   Specify the files to check in a text file. Add one\n"
-              "                         filename per line.\n"
+              "                         filename per line. When file is -, the file list will\n"
+              "                         be read from standard input.\n"
               "    -f, --force          Force checking of all configurations in files that have\n"
               "                         \"too many\" configurations.\n"
               "    -h, --help           Print this help.\n"

man/cppcheck.1.xml

@@ -225,7 +225,7 @@ Example: -DDEBUG=1 -D__cplusplus</para>
       <varlistentry>
         <term><option>--file-list=&lt;file&gt;</option></term>
         <listitem>
-          <para>Specify the files to check in a text file. One filename per line.</para>
+          <para>Specify the files to check in a text file. One filename per line. When file is -, the file list will be read from standard input.</para>
         </listitem>
       </varlistentry>
       <varlistentry>

test/testcmdlineparser.cpp

@@ -71,6 +71,7 @@ private:
         TEST_CASE(exitcodeSuppressions);
         TEST_CASE(exitcodeSuppressionsNoFile);
         TEST_CASE(fileList); // TODO: Create and test real file listing file
+        TEST_CASE(fileListStdin);
         TEST_CASE(inlineSuppr);
         TEST_CASE(jobs);
         TEST_CASE(jobsMissingCount);
@@ -530,6 +531,17 @@ private:
         CmdLineParser parser(&settings);
         TODO_ASSERT_EQUALS(true, false, parser.ParseFromArgs(4, argv));
     }
+    
+    void fileListStdin()
+    {
+        // TODO: Give it some stdin to read from, fails because the list of
+        // files in stdin (_pathnames) is empty
+        REDIRECT;
+        const char *argv[] = {"cppcheck", "--file-list=-", "file.cpp"};
+        Settings settings;
+        CmdLineParser parser(&settings);
+        TODO_ASSERT_EQUALS(true, false, parser.ParseFromArgs(3, argv));
+    }
 
     void inlineSuppr()
     {