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Print version info on -v and --version #139

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Print version info on -v and --version #139

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2 changes: 2 additions & 0 deletions src/zopfli/zopfli.h
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Expand Up @@ -27,6 +27,8 @@ Author: jyrki.alakuijala@gmail.com (Jyrki Alakuijala)
extern "C" {
#endif

#define ZOPFLI_VERSION "1.0.1"

/*
Options used throughout the program.
*/
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15 changes: 14 additions & 1 deletion src/zopfli/zopfli_bin.c
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Expand Up @@ -141,6 +141,10 @@ static char StringsEqual(const char* str1, const char* str2) {
return strcmp(str1, str2) == 0;
}

static void ShowVersion() {
fprintf(stderr, "zopfli version %s\n", ZOPFLI_VERSION);
}

int main(int argc, char* argv[]) {
ZopfliOptions options;
ZopfliFormat output_type = ZOPFLI_FORMAT_GZIP;
Expand Down Expand Up @@ -178,11 +182,20 @@ int main(int argc, char* argv[]) {
" --gzip output to gzip format (default)\n"
" --zlib output to zlib format instead of gzip\n"
" --deflate output to deflate format instead of gzip\n"
" --splitlast ignored, left for backwards compatibility\n");
" --splitlast ignored, left for backwards compatibility\n"
" --version show version and exit\n");
return 0;
}
else if (StringsEqual(arg, "--version")) {
ShowVersion();
return 0;
}
}

if (options.verbose) {
ShowVersion();
}

if (options.numiterations < 1) {
fprintf(stderr, "Error: must have 1 or more iterations\n");
return 0;
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