thodg/libgit2/examples/network/ls-remote.c

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• Hash : 359dce72
  Author :
  Date : 2013-11-02T00:05:32
  

  remote: make _ls return the list directly
  
  The callback-based method of listing remote references dates back to the
  beginning of the network code's lifetime, when we didn't know any
  better.
  
  We need to keep the list around for update_tips() after disconnect() so
  let's make use of this to simply give the user a pointer to the array so
  they can write straightforward code instead of having to go through a
  callback.
  

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• examples/network/ls-remote.c

• #include <git2.h>
  #include <stdlib.h>
  #include <stdio.h>
  #include <string.h>
  #include "common.h"
  
  static int use_remote(git_repository *repo, char *name)
  {
  	git_remote *remote = NULL;
  	int error;
  	const git_remote_head **refs;
  	size_t refs_len, i;
  	git_remote_callbacks callbacks = GIT_REMOTE_CALLBACKS_INIT;
  
  	// Find the remote by name
  	error = git_remote_load(&remote, repo, name);
  	if (error < 0) {
  		error = git_remote_create_inmemory(&remote, repo, NULL, name);
  		if (error < 0)
  			goto cleanup;
  	}
  
  	/**
  	 * Connect to the remote and call the printing function for
  	 * each of the remote references.
  	 */
  	callbacks.credentials = cred_acquire_cb;
  	git_remote_set_callbacks(remote, &callbacks);
  
  	error = git_remote_connect(remote, GIT_DIRECTION_FETCH);
  	if (error < 0)
  		goto cleanup;
  
  	/**
  	 * Get the list of references on the remote and print out
  	 * their name next to what they point to.
  	 */
  	if (git_remote_ls(&refs, &refs_len, remote) < 0)
  		goto cleanup;
  
  	for (i = 0; i < refs_len; i++) {
  		char oid[GIT_OID_HEXSZ + 1] = {0};
  		git_oid_fmt(oid, &refs[i]->oid);
  		printf("%s\t%s\n", oid, refs[i]->name);
  	}
  
  cleanup:
  	git_remote_free(remote);
  	return error;
  }
  
  /** Entry point for this command */
  int ls_remote(git_repository *repo, int argc, char **argv)
  {
  	int error;
  
  	if (argc < 2) {
  		fprintf(stderr, "usage: %s ls-remote <remote>\n", argv[-1]);
  		return EXIT_FAILURE;
  	}
  
  	error = use_remote(repo, argv[1]);
  
  	return error;
  }
  

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