thodg/libgit2/examples/index-pack.c

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• Hash : d2458af7
  Author :
  Date : 2022-01-22T14:19:13
  

  indexer: use a byte array for checksum The index's checksum is not an object ID, so we should not use the `git_oid` type. Use a byte array for checksum calculation and storage. Deprecate the `git_indexer_hash` function. Callers should use the new `git_indexer_name` function which provides a unique packfile name.

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• examples/index-pack.c

• #include "common.h"
  
  /*
   * This could be run in the main loop whilst the application waits for
   * the indexing to finish in a worker thread
   */
  static int index_cb(const git_indexer_progress *stats, void *data)
  {
  	(void)data;
  	printf("\rProcessing %u of %u", stats->indexed_objects, stats->total_objects);
  
  	return 0;
  }
  
  int lg2_index_pack(git_repository *repo, int argc, char **argv)
  {
  	git_indexer *idx;
  	git_indexer_progress stats = {0, 0};
  	int error;
  	int fd;
  	ssize_t read_bytes;
  	char buf[512];
  
  	(void)repo;
  
  	if (argc < 2) {
  		fprintf(stderr, "usage: %s index-pack <packfile>\n", argv[-1]);
  		return EXIT_FAILURE;
  	}
  
  	if (git_indexer_new(&idx, ".", 0, NULL, NULL) < 0) {
  		puts("bad idx");
  		return -1;
  	}
  
  	if ((fd = open(argv[1], 0)) < 0) {
  		perror("open");
  		return -1;
  	}
  
  	do {
  		read_bytes = read(fd, buf, sizeof(buf));
  		if (read_bytes < 0)
  			break;
  
  		if ((error = git_indexer_append(idx, buf, read_bytes, &stats)) < 0)
  			goto cleanup;
  
  		index_cb(&stats, NULL);
  	} while (read_bytes > 0);
  
  	if (read_bytes < 0) {
  		error = -1;
  		perror("failed reading");
  		goto cleanup;
  	}
  
  	if ((error = git_indexer_commit(idx, &stats)) < 0)
  		goto cleanup;
  
  	printf("\rIndexing %u of %u\n", stats.indexed_objects, stats.total_objects);
  
  	puts(git_indexer_name(idx));
  
   cleanup:
  	close(fd);
  	git_indexer_free(idx);
  	return error;
  }
  

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