thodg/libgit2/examples/network/index-pack.c

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• Hash : 7562422a
  Author :
  Date : 2019-01-24T10:30:58
  

  examples: merge common network code
  
  Right now, we have two sets of "common" code, one containing
  general common code and one containing network common code. As we
  intend to get rid of the network subdirectory and instead merge
  all examples into a single standalone executable, this
  distinction doesn't make a lot of sense now. Furthermore, the
  common network code is not that big.
  
  Let's get rid of the common network code by merging it into the
  general common code.
  

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• examples/network/index-pack.c

• #include "../common.h"
  
  #include <sys/types.h>
  #include <sys/stat.h>
  #include <fcntl.h>
  #ifdef _WIN32
  # include <io.h>
  # include <Windows.h>
  
  # define open _open
  # define read _read
  # define close _close
  
  #define ssize_t unsigned int
  #else
  # include <unistd.h>
  #endif
  
  /*
   * 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_transfer_progress *stats, void *data)
  {
  	(void)data;
  	printf("\rProcessing %d of %d", stats->indexed_objects, stats->total_objects);
  
  	return 0;
  }
  
  int index_pack(git_repository *repo, int argc, char **argv)
  {
  	git_indexer *idx;
  	git_transfer_progress stats = {0, 0};
  	int error;
  	char hash[GIT_OID_HEXSZ + 1] = {0};
  	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 %d of %d\n", stats.indexed_objects, stats.total_objects);
  
  	git_oid_fmt(hash, git_indexer_hash(idx));
  	puts(hash);
  
   cleanup:
  	close(fd);
  	git_indexer_free(idx);
  	return error;
  }
  

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