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#include "env.h"
bool initialized_env = false;
char *tabledir;
void
init_env()
{
char *nissydata = getenv("NISSYDATA");
char *localdata = getenv("XDG_DATA_HOME");
char *home = getenv("HOME");
bool read, write;
if (initialized_env)
return;
if (nissydata != NULL) {
tabledir = malloc(strlen(nissydata) * sizeof(char) + 20);
strcpy(tabledir, nissydata);
} else if (localdata != NULL) {
tabledir = malloc(strlen(localdata) * sizeof(char) + 20);
strcpy(tabledir, localdata);
strcat(tabledir, "/nissy");
} else if (home != NULL) {
tabledir = malloc(strlen(home) * sizeof(char) + 20);
strcpy(tabledir, home);
strcat(tabledir, "/.nissy");
}
mkdir(tabledir, 0777);
strcat(tabledir, "/tables");
mkdir(tabledir, 0777);
read = !access(tabledir, R_OK);
write = !access(tabledir, W_OK);
if (!read) {
fprintf(stderr, "Table files cannot be read.\n");
} else if (!write) {
fprintf(stderr, "Data directory not writable: ");
fprintf(stderr, "tables can be loaded, but not saved.\n");
}
initialized_env = true;
}
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