xref: /haiku/src/bin/package_repo/package_repo.cpp (revision e6eaad8615c4734498b9b800847d18bbe62782fa)
1 /*
2  * Copyright 2011, Oliver Tappe <zooey@hirschkaefer.de>
3  * Distributed under the terms of the MIT License.
4  */
5 
6 
7 #include "package_repo.h"
8 
9 #include <errno.h>
10 #include <getopt.h>
11 #include <stdio.h>
12 #include <stdlib.h>
13 #include <string.h>
14 
15 extern const char* __progname;
16 const char* kCommandName = __progname;
17 
18 
19 static const char* kUsage =
20 	"Usage: %s <command> <command args>\n"
21 	"Creates or inspects a Haiku package repository file.\n"
22 	"\n"
23 	"Commands:\n"
24 	"  create [ <options> ] <repo-info> <package-file ...> \n"
25 	"    Creates a package repository from the information found in \n"
26 	"    <repo-info>, adding the given package files.\n"
27 	"\n"
28 	"    -C <dir>   - Change to directory <dir> before starting.\n"
29 	"    -q         - be quiet (don't show any output except for errors).\n"
30 	"    -v         - be verbose (list package attributes as encountered).\n"
31 	"\n"
32 	"  list [ <options> ] <package-repo>\n"
33 	"    Lists the contents of package repository file <package-repo>.\n"
34 	"\n"
35 	"    -v         - be verbose (list attributes of all packages found).\n"
36 	"\n"
37 	"  update [ <options> ] <source-repo> <new-repo> <package-list-file> \n"
38 	"    Creates package repository file <new-repo> with all the packages\n"
39 	"    contained in <package-list-file>. If possible, package-infos are\n"
40 	"    taken from <source-repo> to avoid the need for recomputing the\n"
41 	"    checksum of all packages.\n"
42 	"    <old-repo> and <new-repo> can be the same file.\n"
43 	"\n"
44 	"    -C <dir>   - Change to directory <dir> before starting.\n"
45 	"    -q         - be quiet (don't show any output except for errors).\n"
46 	"    -v         - be verbose (list package attributes as encountered).\n"
47 	"\n"
48 	"Common Options:\n"
49 	"  -h, --help   - Print this usage info.\n"
50 ;
51 
52 
53 void
54 print_usage_and_exit(bool error)
55 {
56     fprintf(error ? stderr : stdout, kUsage, kCommandName);
57     exit(error ? 1 : 0);
58 }
59 
60 
61 int
62 main(int argc, const char* const* argv)
63 {
64 	if (argc < 2)
65 		print_usage_and_exit(true);
66 
67 	const char* command = argv[1];
68 	if (strcmp(command, "create") == 0)
69 		return command_create(argc - 1, argv + 1);
70 
71 	if (strcmp(command, "list") == 0)
72 		return command_list(argc - 1, argv + 1);
73 
74 	if (strcmp(command, "update") == 0)
75 		return command_update(argc - 1, argv + 1);
76 
77 	if (strcmp(command, "help") == 0)
78 		print_usage_and_exit(false);
79 	else
80 		print_usage_and_exit(true);
81 
82 	// never gets here
83 	return 0;
84 }
85