ENH: Add -q option to only search directory for DICOMs.

console/main_console.cpp

@@ -104,6 +104,7 @@ void showHelp(const char *argv[], struct TDCMopts opts) {
 	printf("  -n : only convert this series CRC number - can be used up to %i times (default convert all)\n", MAX_NUM_SERIES);
 	printf("  -o : output directory (omit to save to input folder)\n");
 	printf("  -p : Philips precise float (not display) scaling (y/n, default y)\n");
+	printf("  -q : only search directory for DICOMs (y/l/n, default y) [y=show number of DICOMs found, l=additionally list DICOMs found, n=no]\n");
 	printf("  -r : rename instead of convert DICOMs (y/n, default n)\n");
 	printf("  -s : single file mode, do not convert other images in folder (y/n, default n)\n");
 //text notes replaced with BIDS: this function is deprecated
@@ -178,7 +179,7 @@ void showHelp(const char *argv[], struct TDCMopts opts) {
 } //showHelp()
 
 int invalidParam(int i, const char *argv[]) {
-	if (strchr("yYnNoOhHiIjJBb01234",argv[i][0]))
+	if (strchr("yYnNoOhHiIjlLJBb01234",argv[i][0]))
 		return 0;
 
 	//if (argv[i][0] != '-') return 0;
@@ -471,6 +472,14 @@ int main(int argc, const char *argv[]) {
 					return 0;
 				if ((argv[i][0] == 'y') || (argv[i][0] == 'Y'))
 					opts.isRenameNotConvert = true;
+			} else if ((argv[i][1] == 'q') && ((i + 1) < argc)) {
+				i++;
+				if (invalidParam(i, argv))
+					return 0;
+				if ((argv[i][0] == 'y') || (argv[i][0] == 'Y'))
+					opts.onlySearchDirForDICOM = 1;
+				else if ((argv[i][0] == 'l') || (argv[i][0] == 'L'))
+					opts.onlySearchDirForDICOM = 2;
 			} else if ((argv[i][1] == 's') && ((i + 1) < argc)) {
 				i++;
 				if (invalidParam(i, argv))
@@ -624,11 +633,14 @@ int main(int argc, const char *argv[]) {
 		if (ret != EXIT_SUCCESS)
 			return ret;
 	}
+
+	if (opts.onlySearchDirForDICOM == 0) {
 #if !defined(_WIN64) && !defined(_WIN32)
-	printf("Conversion required %f seconds (%f for core code).\n", get_wall_time() - startWall, ((float)(clock() - start)) / CLOCKS_PER_SEC);
+		printf("Conversion required %f seconds (%f for core code).\n", get_wall_time() - startWall, ((float)(clock() - start)) / CLOCKS_PER_SEC);
 #else
-	printf("Conversion required %f seconds.\n", ((float)(clock() - start)) / CLOCKS_PER_SEC);
+		printf("Conversion required %f seconds.\n", ((float)(clock() - start)) / CLOCKS_PER_SEC);
 #endif
+	}
 	//if (isSaveIni) //we now save defaults earlier, in case of early termination.
 	//	saveIniFile(opts);
 	return EXIT_SUCCESS;

console/nii_dicom_batch.cpp

@@ -8238,6 +8238,12 @@ int nii_loadDirCore(char *indir, struct TDCMopts *opts) {
 	}
 	size_t nDcm = nameList.numItems;
 	printMessage("Found %lu DICOM file(s)\n", nameList.numItems); //includes images and other non-image DICOMs
+	if (opts->onlySearchDirForDICOM == 2) {
+		printMessage("List of DICOM file(s):\n");
+		for (int i = 0; i < nameList.numItems; i++)
+			printMessage("%s\n", nameList.str[i]);
+		printMessage("End of list (%lu in total)\n", nameList.numItems);
+	}
 #ifdef myTimer
 	if (opts->isProgress > 1)
 		printMessage("Stage 1 (Count number of DICOMs) required %f seconds.\n", ((float)(clock() - start)) / CLOCKS_PER_SEC);
@@ -8294,7 +8300,7 @@ int nii_loadDirCore(char *indir, struct TDCMopts *opts) {
 		printMessage("Stage 2 (Read DICOM headers, Convert 4D) required %f seconds.\n", ((float)(clock() - start)) / CLOCKS_PER_SEC);
 	start = clock();
 #endif
-	if (opts->isRenameNotConvert) {
+	if ((opts->isRenameNotConvert) || (opts->onlySearchDirForDICOM != 0)) {
 		free(dcmList);
 		free(dti4D);
 		return EXIT_SUCCESS;
@@ -8852,6 +8858,7 @@ void setDefaultOpts(struct TDCMopts *opts, const char *argv[]) { //either "setDe
 	opts->isPipedGz = false; //e.g. pipe data directly to pigz instead of saving uncompressed to disk
 	opts->isSave3D = false;
 	opts->dirSearchDepth = 5;
+	opts->onlySearchDirForDICOM = 0;
 	opts->isProgress = 0;
 	opts->nameConflictBehavior = kNAME_CONFLICT_ADD_SUFFIX;
 #ifdef myDisableZLib

console/nii_dicom_batch.h

@@ -57,7 +57,7 @@ void nii_clrMrifsStruct();
 
     struct TDCMopts {
         bool isIgnoreTriggerTimes, isTestx0021x105E, isAddNamePostFixes, isSaveNativeEndian, isOneDirAtATime, isRenameNotConvert, isSave3D, isGz, isPipedGz, isFlipY,  isCreateBIDS, isSortDTIbyBVal, isAnonymizeBIDS, isOnlyBIDS, isCreateText, isForceOnsetTimes,isIgnoreDerivedAnd2D, isPhilipsFloatNotDisplayScaling, isTiltCorrect, isRGBplanar, isOnlySingleFile, isForceStackDCE, isIgnoreSeriesInstanceUID, isRotate3DAcq, isCrop;
-        int saveFormat, isMaximize16BitRange, isForceStackSameSeries, nameConflictBehavior, isVerbose, isProgress, compressFlag, dirSearchDepth, gzLevel, diffCyclingModeGE; //support for compressed data 0=none,
+        int saveFormat, isMaximize16BitRange, isForceStackSameSeries, nameConflictBehavior, isVerbose, isProgress, compressFlag, dirSearchDepth, onlySearchDirForDICOM, gzLevel, diffCyclingModeGE; //support for compressed data 0=none,
         char filename[512], outdir[512], indir[512], pigzname[512], optsname[512], indirParent[512], imageComments[24];
         double seriesNumber[MAX_NUM_SERIES]; //requires double must store -1 (report but do not convert) as well as seriesUidCrc (uint32)
         long numSeries;