* Copyright 2002-2007, Haiku, Inc. All rights reserved.
* Distributed under the terms of the MIT License.
*
* Authors:
* Ryan Fleet
* Vasilis Kaoutsis
*/
#include <Application.h>
#include <AppFileInfo.h>
#include <stdio.h>
#include <string.h>
void
usage()
{
printf("usage: version [OPTION] FILENAME [FILENAME2, ...]\n"
"Returns the version of a file.\n\n"
" -h, --help this usage message\n"
" -l, --long print long version information of FILENAME\n"
" -n, --numerical print in numerical mode\n"
" (Major miDdle miNor Variety Internal)\n"
" -s, --system print system version instead of app version\n"
" --version print version information for this command\n");
}
status_t
get_version(const char *filename, version_kind kind, bool longFlag, bool numericalFlag)
{
BFile file(filename, O_RDONLY);
if (file.InitCheck() != B_OK) {
printf("Couldn't get file info!\n");
return B_FILE_ERROR;
}
BAppFileInfo info(&file);
if (info.InitCheck() != B_OK) {
printf("Couldn't get file info!\n");
return B_FILE_ERROR;
}
version_info version;
if (info.GetVersionInfo(&version, kind) != B_OK) {
printf("Version unknown!\n");
return B_ERROR;
}
if (longFlag) {
printf("%s\n", version.long_info);
return B_OK;
}
if (numericalFlag) {
printf("%lu ", version.major);
printf("%lu ", version.middle);
printf("%lu ", version.minor);
switch (version.variety) {
case B_DEVELOPMENT_VERSION:
printf("d ");
break;
case B_ALPHA_VERSION:
printf("a ");
break;
case B_BETA_VERSION:
printf("b ");
break;
case B_GAMMA_VERSION:
printf("g ");
break;
case B_GOLDEN_MASTER_VERSION:
printf("gm ");
break;
case B_FINAL_VERSION:
printf("f ");
break;
}
printf("%lu\n", version.internal);
return B_OK;
}
printf("%s\n", version.short_info);
return B_OK;
}
determines whether \a string1 contains at least one or more of the characters
of \a string2 but none of which \a string2 doesn't contain.
examples:
true == ("hel" == "help"); true == ("help" == "help"); true == ("h" == "help");
false == ("held" == "help"); false == ("helped" == "help");
*/
bool
str_less_equal(const char *str1, const char *str2)
{
char *ptr1 = const_cast<char*>(str1);
char *ptr2 = const_cast<char*>(str2);
while (*ptr1 != '\0') {
if (*ptr1 != *ptr2)
return false;
++ptr1;
++ptr2;
}
return true;
}
int
main(int argc, char *argv[])
{
BApplication app("application/x.vnd.Haiku-version");
version_kind kind = B_APP_VERSION_KIND;
bool longFlag = false;
bool numericalFlag = false;
int i;
if (argc < 2) {
usage();
return 0;
}
for (i = 1; i < argc; ++i) {
if (argv[i][0] == '-') {
char *ptr = argv[i];
++ptr;
if (*ptr == '-') {
bool lessEqual = false;
++ptr;
if (*ptr == 'h') {
lessEqual = str_less_equal(ptr, "help");
if (lessEqual) {
usage();
return 0;
}
} else if (*ptr == 'l') {
lessEqual = str_less_equal(ptr, "long");
if (lessEqual)
longFlag = true;
} else if (*ptr == 'n') {
lessEqual = str_less_equal(ptr, "numerical");
if (lessEqual)
numericalFlag = true;
} else if (*ptr == 's') {
lessEqual = str_less_equal(ptr, "system");
if (lessEqual)
kind = B_SYSTEM_VERSION_KIND;
} else if (*ptr == 'v') {
lessEqual = str_less_equal(ptr, "version");
if (lessEqual) {
get_version(argv[0], B_APP_VERSION_KIND, false, false);
return 0;
}
}
if (!lessEqual)
printf("%s unrecognized option `%s'\n", argv[0], argv[i]);
} else {
while (*ptr != '\0') {
if (*ptr == 'h') {
usage();
return 0;
} else if (*ptr == 's')
kind = B_SYSTEM_VERSION_KIND;
else if (*ptr == 'l')
longFlag = true;
else if (*ptr == 'n')
numericalFlag = true;
else {
printf("%s: invalid option -- %c\n", argv[0], *ptr);
return 1;
}
if (argc < 3) {
printf("%s: missing FILENAME(S) \n", argv[0]);
return 1;
}
++ptr;
}
}
}
}
for (i = 1; i < argc; ++i) {
if (argv[i][0] != '-'
&& get_version(argv[i], kind, longFlag, numericalFlag) != B_OK)
return 1;
}
return 0;
}
