Add --list option to display compressed file information.
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@ -40,6 +40,7 @@
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#include <stdlib.h> /* exit, calloc, free */
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#include <string.h> /* strcmp, strlen */
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#include "bench.h" /* BMK_benchFile, BMK_SetNbIterations, BMK_SetBlocksize, BMK_SetPause */
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#include "lz4frame.h"
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#include "lz4io.h" /* LZ4IO_compressFilename, LZ4IO_decompressFilename, LZ4IO_compressMultipleFilenames */
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#include "lz4hc.h" /* LZ4HC_CLEVEL_MAX */
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#include "lz4.h" /* LZ4_VERSION_STRING */
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@ -141,6 +142,7 @@ static int usage_advanced(const char* exeName)
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DISPLAY( " -BX : enable block checksum (default:disabled) \n");
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DISPLAY( "--no-frame-crc : disable stream checksum (default:enabled) \n");
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DISPLAY( "--content-size : compressed frame includes original size (default:not present)\n");
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DISPLAY( "--list : list information about .lz4 files. Only useful if compressed with --content-size flag.\n");
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DISPLAY( "--[no-]sparse : sparse mode (default:enabled on file, disabled on stdout)\n");
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DISPLAY( "--favor-decSpeed: compressed files decompress faster, but are less compressed \n");
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DISPLAY( "--fast[=#]: switch to ultra fast compression level (default: %i)\n", 1);
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@ -286,7 +288,7 @@ static int longCommandWArg(const char** stringPtr, const char* longCommand)
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return result;
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}
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typedef enum { om_auto, om_compress, om_decompress, om_test, om_bench } operationMode_e;
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typedef enum { om_auto, om_compress, om_decompress, om_test, om_bench, om_list } operationMode_e;
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/** determineOpMode() :
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* auto-determine operation mode, based on input filename extension
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@ -383,6 +385,7 @@ int main(int argc, const char** argv)
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if (!strcmp(argument, "--no-frame-crc")) { LZ4IO_setStreamChecksumMode(prefs, 0); continue; }
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if (!strcmp(argument, "--content-size")) { LZ4IO_setContentSize(prefs, 1); continue; }
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if (!strcmp(argument, "--no-content-size")) { LZ4IO_setContentSize(prefs, 0); continue; }
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if (!strcmp(argument, "--list")) { mode = om_list; continue; }
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if (!strcmp(argument, "--sparse")) { LZ4IO_setSparseFile(prefs, 2); continue; }
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if (!strcmp(argument, "--no-sparse")) { LZ4IO_setSparseFile(prefs, 0); continue; }
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if (!strcmp(argument, "--favor-decSpeed")) { LZ4IO_favorDecSpeed(prefs, 1); continue; }
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@ -705,7 +708,34 @@ int main(int argc, const char** argv)
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operationResult = LZ4IO_decompressMultipleFilenames(prefs, inFileNames, ifnIdx, !strcmp(output_filename,stdoutmark) ? stdoutmark : LZ4_EXTENSION);
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else
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operationResult = DEFAULT_DECOMPRESSOR(prefs, input_filename, output_filename);
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} else { /* compression is default action */
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} else if (mode == om_list){
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LZ4F_compFileInfo_t cfinfo;
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if(!multiple_inputs){
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inFileNames[ifnIdx++] = input_filename;
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}
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DISPLAY("%16s\t%-20s\t%-20s\t%-10s\t%s\n","BlockChecksumFlag","Compressed", "Uncompressed", "Ratio", "Filename");
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for(i=0; i<ifnIdx; i++){
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/* Get file info */
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if (!LZ4IO_getCompressedFileInfo(inFileNames[i], &cfinfo)){
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DISPLAYLEVEL(1, "Failed to get frame info.\n");
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if (!multiple_inputs){
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return 1;
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}
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continue;
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}
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if(cfinfo.frameInfo.contentSize){
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double ratio = (double)cfinfo.fileSize / cfinfo.frameInfo.contentSize;
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DISPLAY("%-16d\t%-20llu\t%-20llu\t%-8.4f\t%s\n",cfinfo.frameInfo.blockChecksumFlag,cfinfo.fileSize,cfinfo.frameInfo.contentSize, ratio, cfinfo.fileName);
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}
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else{
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DISPLAY("%-16d\t%-20llu\t%-20s\t%-10s\t%s\n",cfinfo.frameInfo.blockChecksumFlag,cfinfo.fileSize, "-", "-", cfinfo.fileName);
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}
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free(cfinfo.fileName);
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}
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free(inFileNames);
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return 0;
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} else {
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/* compression is default action */
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if (legacy_format) {
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DISPLAYLEVEL(3, "! Generating LZ4 Legacy format (deprecated) ! \n");
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LZ4IO_compressFilename_Legacy(prefs, input_filename, output_filename, cLevel);
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@ -53,11 +53,11 @@
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#include <time.h> /* clock */
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#include <sys/types.h> /* stat64 */
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#include <sys/stat.h> /* stat64 */
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#include "lz4io.h"
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#include "lz4.h" /* still required for legacy format */
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#include "lz4hc.h" /* still required for legacy format */
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#define LZ4F_STATIC_LINKING_ONLY
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#include "lz4frame.h"
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#include "lz4io.h"
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/*****************************
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@ -1265,3 +1265,41 @@ int LZ4IO_decompressMultipleFilenames(LZ4IO_prefs_t* const prefs, const char** i
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free(outFileName);
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return missingFiles + skippedFiles;
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}
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size_t LZ4IO_getCompressedFileInfo(const char* input_filename, LZ4F_compFileInfo_t* cfinfo){
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/* Get file size */
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stat_t statbuf;
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if (!UTIL_getFileStat(input_filename, &statbuf)){
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EXM_THROW(60, "Can't stat file : %s", input_filename);
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}
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cfinfo->fileSize = statbuf.st_size;
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/* Get basename without extension */
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const char *b = strrchr(input_filename, '/');
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if (b && b != input_filename){
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b++;
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} else{
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b=input_filename;
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}
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const char *e = strrchr(b, '.');
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cfinfo->fileName = malloc( (e-b+1) * sizeof(char));
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strncpy(cfinfo->fileName, b, (e-b));
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cfinfo->fileName[e-b] = '\0';
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/* init */
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dRess_t ress;
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LZ4F_errorCode_t const errorCode = LZ4F_createDecompressionContext(&ress.dCtx, LZ4F_VERSION);
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if (LZ4F_isError(errorCode)) EXM_THROW(60, "Can't create LZ4F context : %s", LZ4F_getErrorName(errorCode));
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FILE* const finput = LZ4IO_openSrcFile(input_filename);
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if (finput==NULL) return 1;
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/* Allocate Memory */
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ress.srcBuffer = malloc(LZ4IO_dBufferSize);
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size_t readSize = LZ4F_HEADER_SIZE_MAX;
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if (!fread(ress.srcBuffer, readSize, 1, finput)){
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EXM_THROW(30, "Error reading %s ", input_filename);
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}
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cfinfo->frameInfo = (LZ4F_frameInfo_t) LZ4F_INIT_FRAMEINFO;
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LZ4F_getFrameInfo(ress.dCtx, &cfinfo->frameInfo, ress.srcBuffer, &readSize);
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/* Close input/free resources */
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fclose(finput);
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free(ress.srcBuffer);
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return readSize;
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}
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@ -54,6 +54,14 @@ static const char nulmark[] = "/dev/null";
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typedef struct LZ4IO_prefs_s LZ4IO_prefs_t;
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typedef struct {
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LZ4F_frameInfo_t frameInfo;
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char* fileName;
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unsigned long long fileSize;
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double compressionRatio;
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} LZ4F_compFileInfo_t;
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LZ4IO_prefs_t* LZ4IO_defaultPreferences(void);
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void LZ4IO_freePreferences(LZ4IO_prefs_t* const prefs);
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@ -116,6 +124,9 @@ int LZ4IO_setSparseFile(LZ4IO_prefs_t* const prefs, int enable);
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/* Default setting : 0 == no content size present in frame header */
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int LZ4IO_setContentSize(LZ4IO_prefs_t* const prefs, int enable);
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/* */
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size_t LZ4IO_getCompressedFileInfo(const char* input_filename, LZ4F_compFileInfo_t* cfinfo);
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/* Default setting : 0 == src file preserved */
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void LZ4IO_setRemoveSrcFile(LZ4IO_prefs_t* const prefs, unsigned flag);
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