static void fail_unless_files_equal (const char *left, const char *right)
{
pipeline *diff = pipeline_new_command_args
("diff", "-u", left, right, NULL);
int ret = pipeline_run (diff);
fail_unless (ret == 0);
}
/* Do the old thing, if we cannot find the relevant database.
* This invokes grep once per argument; we can't do much about this because
* we need to know which arguments failed. The only way to speed this up
* would be to implement grep internally, but it hardly seems worth it for a
* legacy mechanism.
*/
static void use_grep (const char * const *pages, int num_pages, char *manpath,
int *found)
{
char *whatis_file = xasprintf ("%s/whatis", manpath);
if (access (whatis_file, R_OK) == 0) {
const char *flags;
int i;
if (am_apropos) {
if (regex_opt)
flags = get_def_user (
"apropos_regex_grep_flags",
APROPOS_REGEX_GREP_FLAGS);
else
flags = get_def_user ("apropos_grep_flags",
APROPOS_GREP_FLAGS);
} else
flags = get_def_user ("whatis_grep_flags",
WHATIS_GREP_FLAGS);
for (i = 0; i < num_pages; ++i) {
pipeline *grep_pl;
pipecmd *grep_cmd;
char *anchored_page;
if (am_apropos)
anchored_page = xstrdup (pages[i]);
else
anchored_page = xasprintf ("^%s", pages[i]);
grep_cmd = pipecmd_new_argstr (get_def_user ("grep",
GREP));
pipecmd_argstr (grep_cmd, flags);
pipecmd_args (grep_cmd, anchored_page, whatis_file,
NULL);
grep_pl = pipeline_new_commands (grep_cmd, NULL);
if (pipeline_run (grep_pl) == 0)
found[i] = 1;
free (anchored_page);
}
} else
debug ("warning: can't read the fallback whatis text database "
"%s/whatis\n", manpath);
free (whatis_file);
}
