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/*
* Copyright 2005-2018 Gentoo Foundation
* Distributed under the terms of the GNU General Public License v2
*
* Copyright 2005-2008 Ned Ludd - <solar@gentoo.org>
* Copyright 2005-2014 Mike Frysinger - <vapier@gentoo.org>
*/
#ifdef APPLET_qatom
#define QATOM_FORMAT "%{CATEGORY} %{PN} %{PV} %[PR] %[SLOT] %[pfx] %[sfx]"
#define QATOM_FLAGS "F:c" COMMON_FLAGS
static struct option const qatom_long_opts[] = {
{"format", a_argument, NULL, 'F'},
{"compare", no_argument, NULL, 'c'},
COMMON_LONG_OPTS
};
static const char * const qatom_opts_help[] = {
"Custom output format (default: " QATOM_FORMAT ")",
"Compare two atoms",
COMMON_OPTS_HELP
};
#define qatom_usage(ret) usage(ret, QATOM_FLAGS, qatom_long_opts, qatom_opts_help, NULL, lookup_applet_idx("qatom"))
/* Run printf on an atom! The format field takes the form:
* %{keyword}: Always display the field that matches "keyword"
* %[keyword]: Only display the field when it's valid (or pverbose)
* The possible "keywords" are:
* CATEGORY P PN PV PVR PF PR SLOT
* - these are all the standard portage variables (so see ebuild(5))
* pfx - the version qualifier if set (e.g. > < = !)
* sfx - the version qualifier if set (e.g. *)
*/
static void
qatom_printf(const char *format, const depend_atom *atom, int pverbose)
{
char bracket;
const char *fmt, *p;
if (!atom) {
printf("(NULL:atom)");
return;
}
p = format;
while (*p != '\0') {
fmt = strchr(p, '%');
if (fmt == NULL) {
printf("%s", p);
return;
} else if (fmt != p)
printf("%.*s", (int)(fmt - p), p);
bracket = fmt[1];
if (bracket == '{' || bracket == '[') {
fmt += 2;
p = strchr(fmt, bracket == '{' ? '}' : ']');
if (p) {
size_t len = p - fmt;
bool showit = (bracket == '{') || pverbose;
#define HN(X) (X ? X : "<unset>")
if (!strncmp("CATEGORY", fmt, len)) {
if (showit || atom->CATEGORY)
printf("%s", HN(atom->CATEGORY));
} else if (!strncmp("P", fmt, len)) {
if (showit || atom->P)
printf("%s", HN(atom->P));
} else if (!strncmp("PN", fmt, len)) {
if (showit || atom->PN)
printf("%s", HN(atom->PN));
} else if (!strncmp("PV", fmt, len)) {
if (showit || atom->PV)
printf("%s", HN(atom->PV));
} else if (!strncmp("PVR", fmt, len)) {
if (showit || atom->PVR)
printf("%s", HN(atom->PVR));
} else if (!strncmp("PF", fmt, len)) {
printf("%s", atom->PN);
if (atom->PV)
printf("-%s", atom->PV);
if (atom->PR_int)
printf("-r%i", atom->PR_int);
} else if (!strncmp("PR", fmt, len)) {
if (showit || atom->PR_int)
printf("r%i", atom->PR_int);
} else if (!strncmp("SLOT", fmt, len)) {
if (showit || atom->SLOT)
printf(":%s", atom->SLOT ? atom->SLOT : "-");
} else if (!strncmp("REPO", fmt, len)) {
if (showit || atom->REPO)
printf("::%s", HN(atom->REPO));
} else if (!strncmp("pfx", fmt, len)) {
if (showit || atom->pfx_op != ATOM_OP_NONE)
fputs(atom->pfx_op == ATOM_OP_NONE ?
"-" : atom_op_str[atom->pfx_op], stdout);
} else if (!strncmp("sfx", fmt, len)) {
if (showit || atom->sfx_op != ATOM_OP_NONE)
fputs(atom->sfx_op == ATOM_OP_NONE ?
"-" : atom_op_str[atom->sfx_op], stdout);
} else
printf("<BAD:%.*s>", (int)len, fmt);
++p;
#undef HN
} else
p = fmt + 1;
} else
++p;
}
}
int qatom_main(int argc, char **argv)
{
enum qatom_atom { _EXPLODE=0, _COMPARE } action = _EXPLODE;
const char *format = QATOM_FORMAT;
depend_atom *atom;
int i;
while ((i = GETOPT_LONG(QATOM, qatom, "")) != -1) {
switch (i) {
case 'F': format = optarg; break;
case 'c': action = _COMPARE; break;
COMMON_GETOPTS_CASES(qatom)
}
}
if (argc == optind)
qatom_usage(EXIT_FAILURE);
if (action == _COMPARE && (argc - optind) % 2)
err("compare needs even number of arguments");
for (i = optind; i < argc; ++i) {
switch (action) {
case _COMPARE:
printf("%s %s %s\n", argv[i],
booga[atom_compare_str(argv[i], argv[i+1])], argv[i+1]);
++i;
break;
case _EXPLODE:
atom = atom_explode(argv[i]);
qatom_printf(format, atom, verbose);
putchar('\n');
atom_implode(atom);
break;
}
}
return EXIT_SUCCESS;
}
#else
DEFINE_APPLET_STUB(qatom)
#endif
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