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#include <stdlib.h>
#include <dlfcn.h>
#include <string.h>
#import <Cocoa/Cocoa.h>
static int
check_mono_version (const char *version, const char *req_version)
{
char *req_end, *end;
long req_val, val;
while (*req_version && *version) {
req_val = strtol (req_version, &req_end, 10);
if (req_version == req_end || (*req_end && *req_end != '.')) {
NSLog (@"Bad version requirement string '%s'", req_end);
return FALSE;
}
val = strtol (version, &end, 10);
if (version == end || val < req_val)
return FALSE;
if (val > req_val) {
return TRUE;
}
if (*req_end == '.' && *end != '.')
return FALSE;
req_version = req_end;
if (*req_version)
req_version++;
version = end + 1;
}
return TRUE;
}
static NSString *
xcode_get_dev_path ()
{
NSString *xcode_link = [[NSFileManager defaultManager]
destinationOfSymbolicLinkAtPath:@"/var/db/xcode_select_link"
error:nil
];
return xcode_link ?: @"/Applications/Xcode.app/Contents/Developer";
}
static NSArray<NSString *> *
generate_fallback_paths (NSString *binDir)
{
NSString *lib_path = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:@"lib"];
return @[
/* Inject our Resources/lib and bin dirs dir */
binDir,
lib_path,
/* Add Xcode's CommandLineTools dev lib dir before Xcode's Developer dir */
@"/Library/Developer/CommandLineTools/usr/lib",
/* Add Xcode's dev lib dir into the DYLD_FALLBACK_LIBRARY_PATH */
[xcode_get_dev_path() stringByAppendingString:@"/usr/lib"],
/* Add Mono's lib dir */
@"/Library/Frameworks/Mono.framework/Libraries",
@"/usr/lib",
@"/usr/local/lib",
];
}
static bool
push_env (const char *variable, const char *value, BOOL push_to_end)
{
const char *current;
size_t len;
char *buf;
BOOL updated = YES;
if ((current = getenv (variable)) && *current) {
char *token, *copy, *tofree;
size_t current_length;
tofree = copy = strdup (current);
current_length = strlen (current);
len = strlen (value);
while ((token = strsep(©, ":"))) {
if (!strncmp (token, value, len)) {
while ((strsep(©, ":")))
continue;
updated = NO;
goto done;
}
}
if (!(buf = (char *)malloc (len + current_length + 2)))
return NO;
if (push_to_end) {
memcpy (buf, current, current_length);
buf[current_length] = ':';
strcpy (buf + current_length + 1, value);
} else {
memcpy (buf, value, len);
buf[len] = ':';
strcpy (buf + len + 1, current);
}
setenv (variable, buf, 1);
free (buf);
done:
free (tofree);
} else {
setenv (variable, value, 1);
}
return updated;
}
static bool
push_env_to_start (const char *variable, const char *value)
{
return push_env (variable, value, NO);
}
static bool
push_env_to_end (const char *variable, const char *value)
{
return push_env (variable, value, YES);
}
static bool
replace_env (const char *variable, const char *value)
{
const char *old = getenv (variable);
if (old && !strcmp (old, value))
return false;
setenv (variable, value, true);
return true;
}
static bool
update_environment (NSString *binDir)
{
NSArray<NSString *> *array;
bool updated = NO;
NSString *value;
if ((array = generate_fallback_paths (binDir))) {
for (value in array) {
if (push_env_to_end ("DYLD_FALLBACK_LIBRARY_PATH", [value UTF8String]))
updated = YES;
}
}
if (push_env_to_start ("PKG_CONFIG_PATH", "/Library/Frameworks/Mono.framework/External/pkgconfig"))
updated = YES;
NSBundle *bundle = [NSBundle mainBundle];
NSString *resourcePath = [bundle resourcePath];
/* Enable the use of stuff bundled into the app bundle and the Mono "External" directory */
value = [resourcePath stringByAppendingPathComponent:@"lib/pkgconfig"];
if (push_env_to_start ("PKG_CONFIG_PATH", [value UTF8String])) {
updated = YES;
}
value = [[bundle executablePath] stringByDeletingLastPathComponent];
if (push_env_to_start ("PATH", [value UTF8String]))
updated = YES;
if (push_env_to_start ("MONO_GAC_PREFIX", [resourcePath UTF8String]))
updated = YES;
// Note: older versions of Xamarin Studio incorrectly set the PATH to the Resources dir instead of the MacOS dir
// and older versions of mtouch relied on this broken behavior.
if (push_env_to_start ("PATH", [resourcePath UTF8String]))
updated = YES;
if (push_env_to_start ("PATH", "/Library/Frameworks/Mono.framework/Commands"))
updated = YES;
if (push_env_to_end ("PATH", "/usr/local/bin"))
updated = YES;
if (push_env_to_end ("PATH", "~/.dotnet/tools"))
updated = YES;
if (replace_env ("MONODEVELOP_64BIT_SAFE", "yes"))
updated = YES;
if (replace_env ("LC_NUMERIC", "C"))
updated = YES;
return updated;
}
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