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#include "opt.h"
#include "err.h"
#include "calendar.h"
#include "print.h"
#include "../reqs/simple-xdg-bdirs/simple-xdg-bdirs.h"
#include <stdbool.h>
#include <limits.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/wait.h>
int main(int argc, char **argv)
{
enum opt_command_e cmd;
char *calpath;
FILE *calf;
struct calendar_s cal;
char *ed;
pid_t pid;
int wstatus;
char **rdirs, **cur;
bool calpath_alloced = false;
if ((unsigned long)INT_MAX < (unsigned long)2147483647) {
ERR(
"%s does not work appropriately on systems where `int` < 32 bits",
argv[0]
);
}
opt_parse(argc, argv);
cmd = opt_command();
if (opt_calpath() != NULL) {
calpath = opt_calpath();
} else {
rdirs = simple_xdg_bdirs_read_dirs(SIMPLE_XDG_BDIRS_CONFIG);
if (rdirs == NULL)
ERR("no calendar specified, and default was not found or readable");
calpath = simple_xdg_bdirs_fullpath_read("every/cal.every", rdirs);
for (cur = rdirs; *cur != NULL; cur++)
free(*cur);
free(rdirs);
if (calpath == NULL)
ERR("no calendar specified, and default was not found or readable");
calpath_alloced = true;
}
/* edit command */
if (cmd == OPT_COMMAND_EDIT) {
ed = opt_editor();
if (ed == NULL) {
ERR("no editor specified, and $EDITOR was not found");
}
pid = fork();
if (pid == 0) {
if (execlp(ed, ed, calpath, (char*)NULL) == -1)
exit(EXIT_FAILURE);
} else if (pid == -1) {
if (calpath_alloced)
free(calpath);
ERR("editor failed to spawn");
} else {
if (waitpid(pid, &wstatus, 0) == -1) {
if (calpath_alloced)
free(calpath);
ERR("editor failed to spawn");
}
if (calpath_alloced)
free(calpath);
if (!WIFEXITED(wstatus) || WEXITSTATUS(wstatus))
ERR("editor failed to spawn or exited abnormally");
exit(EXIT_SUCCESS);
}
if (calpath_alloced)
free(calpath);
exit(EXIT_SUCCESS);
}
/* parse calendar */
calf = fopen(calpath, "r");
if (calf == NULL) {
ERRM("could not read calendar at `%s`\n", calpath);
if (calpath_alloced)
free(calpath);
exit(EXIT_FAILURE);
}
if (calpath_alloced)
free(calpath);
cal = calendar_parse(calf);
fclose(calf);
if (cal.err_flag)
exit(EXIT_FAILURE);
/* output commands */
if (cmd == OPT_COMMAND_CONSOLE)
print_console(&cal);
else
print_script(&cal);
calendar_wipe(&cal);
return 0;
}
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