57 lines
1.3 KiB
C++
57 lines
1.3 KiB
C++
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#include "json.h"
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#include <cerrno>
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#include <cstdio>
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#include <string>
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#include <exception>
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using json = LAMMPS_NS::json;
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int main(int argc, char **argv)
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{
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if (argc < 3) {
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printf("Usage: %s <indent-width> <json-file-1> [<json-file-2> ...]\n", argv[0]);
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return 1;
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}
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int indent = std::stoi(argv[1]);
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// loop over files
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for (int i=2; i < argc; ++i) {
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std::string file = argv[i];
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std::string backup = file + ".bak";
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FILE *fp = fopen(file.c_str(), "r");
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if (!fp) {
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printf("Cannot open file %s for reading: %s\n", file.c_str(), strerror(errno));
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return 2;
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}
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try {
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auto jsondata = json::parse(fp, nullptr, true, true);
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fclose(fp);
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if (rename(file.c_str(), backup.c_str())) {
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printf("Cannot create backup for file %s: %s\n", file.c_str(), strerror(errno));
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return 3;
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}
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fp = fopen(file.c_str(), "w");
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if (!fp) {
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printf("Cannot open file %s for writing: %s\n", file.c_str(), strerror(errno));
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return 4;
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}
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std::string data = jsondata.dump(indent);
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data += '\n';
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fputs(data.c_str(), fp);
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fclose(fp);
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} catch (std::exception &e) {
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printf("%s: %s\nSkipping file...\n", argv[i], e.what());
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fclose(fp);
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}
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}
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return 0;
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}
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