thodg/libgit2/examples/add.c

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• Hash : fc293919
  Author :
  Date : 2016-08-16T11:43:10
  

  examples: add: fix type casting warning

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• examples/add.c

• /*
   * libgit2 "add" example - shows how to modify the index
   *
   * Written by the libgit2 contributors
   *
   * To the extent possible under law, the author(s) have dedicated all copyright
   * and related and neighboring rights to this software to the public domain
   * worldwide. This software is distributed without any warranty.
   *
   * You should have received a copy of the CC0 Public Domain Dedication along
   * with this software. If not, see
   * <http://creativecommons.org/publicdomain/zero/1.0/>.
   */
  
  #include "common.h"
  #include <assert.h>
  
  enum print_options {
  	SKIP = 1,
  	VERBOSE = 2,
  	UPDATE = 4,
  };
  
  struct print_payload {
  	enum print_options options;
  	git_repository *repo;
  };
  
  /* Forward declarations for helpers */
  static void parse_opts(int *options, int *count, int argc, char *argv[]);
  void init_array(git_strarray *array, int argc, char **argv);
  int print_matched_cb(const char *path, const char *matched_pathspec, void *payload);
  
  int main (int argc, char** argv)
  {
  	git_index_matched_path_cb matched_cb = NULL;
  	git_repository *repo = NULL;
  	git_index *index;
  	git_strarray array = {0};
  	int options = 0, count = 0;
  	struct print_payload payload = {0};
  
  	git_libgit2_init();
  
  	parse_opts(&options, &count, argc, argv);
  
  	init_array(&array, argc-count, argv+count);
  
  	check_lg2(git_repository_open(&repo, "."), "No git repository", NULL);
  	check_lg2(git_repository_index(&index, repo), "Could not open repository index", NULL);
  
  	if (options&VERBOSE || options&SKIP) {
  		matched_cb = &print_matched_cb;
  	}
  
  	payload.options = options;
  	payload.repo = repo;
  
  	if (options&UPDATE) {
  		git_index_update_all(index, &array, matched_cb, &payload);
  	} else {
  		git_index_add_all(index, &array, 0, matched_cb, &payload);
  	}
  
  	git_index_write(index);
  	git_index_free(index);
  	git_repository_free(repo);
  
  	git_libgit2_shutdown();
  
  	return 0;
  }
  
  int print_matched_cb(const char *path, const char *matched_pathspec, void *payload)
  {
  	struct print_payload p = *(struct print_payload*)(payload);
  	int ret;
  	unsigned status;
  	(void)matched_pathspec;
  
  	if (git_status_file(&status, p.repo, path)) {
  		return -1;
  	}
  
  	if (status & GIT_STATUS_WT_MODIFIED || status & GIT_STATUS_WT_NEW) {
  		printf("add '%s'\n", path);
  		ret = 0;
  	} else {
  		ret = 1;
  	}
  
  	if(p.options & SKIP) {
  		ret = 1;
  	}
  
  	return ret;
  }
  
  void init_array(git_strarray *array, int argc, char **argv)
  {
  	unsigned int i;
  
  	array->count = argc;
  	array->strings = malloc(sizeof(char*) * array->count);
  	assert(array->strings!=NULL);
  
  	for(i=0; i<array->count; i++) {
  		array->strings[i]=argv[i];
  	}
  
  	return;
  }
  
  void print_usage(void)
  {
  	fprintf(stderr, "usage: add [options] [--] file-spec [file-spec] [...]\n\n");
  	fprintf(stderr, "\t-n, --dry-run    dry run\n");
  	fprintf(stderr, "\t-v, --verbose    be verbose\n");
  	fprintf(stderr, "\t-u, --update     update tracked files\n");
  	exit(1);
  }
  
  static void parse_opts(int *options, int *count, int argc, char *argv[])
  {
  	int i;
  
  	for (i = 1; i < argc; ++i) {
  		if (argv[i][0] != '-') {
  			break;
  		}
  		else if(!strcmp(argv[i], "--verbose") || !strcmp(argv[i], "-v")) {
  			*options |= VERBOSE;
  		}
  		else if(!strcmp(argv[i], "--dry-run") || !strcmp(argv[i], "-n")) {
  			*options |= SKIP;
  		}
  		else if(!strcmp(argv[i], "--update") || !strcmp(argv[i], "-u")) {
  			*options |= UPDATE;
  		}
  		else if(!strcmp(argv[i], "-h")) {
  			print_usage();
  			break;
  		}
  		else if(!strcmp(argv[i], "--")) {
  			i++;
  			break;
  		}
  		else {
  			fprintf(stderr, "Unsupported option %s.\n", argv[i]);
  			print_usage();
  		}
  	}
  
  	if (argc<=i)
  		print_usage();
  
  	*count = i;
  }
  

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