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/* file : tests/api/driver.c
* copyright : Copyright (c) 2016-2017 Code Synthesis Ltd
* license : ISC; see accompanying COPYING file
*/
/*
* Enable assertions.
*/
#ifdef NDEBUG
# undef NDEBUG
#endif
#include <libpkgconf/libpkgconf.h>
#include <stdio.h> /* printf(), fprintf(), stderr */
#include <stddef.h> /* size_t, NULL */
#include <assert.h>
#include <string.h> /* strcmp(), strlen() */
#include <stdbool.h> /* bool, true, false */
static bool
error_handler (const char* msg, const pkgconf_client_t* c, const void* d)
{
(void) c; /* Unused. */
(void) d; /* Unused. */
/*
* Seems it always have a trailing newline char. Probably it still a good
* idea to check if it is. Let's see if it ever be missed.
*
*/
fprintf (stderr, "%s", msg);
return true;
}
static void
frags_print_and_free (pkgconf_list_t* list)
{
pkgconf_node_t *node;
PKGCONF_FOREACH_LIST_ENTRY(list->head, node)
{
pkgconf_fragment_t* frag = node->data;
printf("%c %s\n", frag->type, frag->data);
}
pkgconf_fragment_free (list);
}
static void
tuples_print (pkgconf_list_t *list)
{
pkgconf_node_t *node;
PKGCONF_FOREACH_LIST_ENTRY(list->head, node)
{
pkgconf_tuple_t *tuple = node->data;
// Skip the automatically added variable.
//
if (strcmp (tuple->key, "pcfiledir") != 0)
printf("%s %s\n", tuple->key, tuple->value);
}
}
/*
* Usage: argv[0] (--cflags|--libs|--vars) <path>
*
* Print package compiler flags, linker flags or variable name/values one per
* line. The specified package file must have .pc extension.
*
* --cflags
* Print compiler flags in the '<name> <value>' format.
*
* --libs
* Print linker flags in the '<name> <value>' format.
*
* --vars
* Print variables in the '<name> <value>' format.
*/
int
main (int argc, const char* argv[])
{
enum
{
dump_none,
dump_cflags,
dump_libs,
dump_vars
} mode = dump_none;
int i = 1;
for (; i < argc; ++i)
{
const char* o = argv[i];
if (strcmp (o, "--cflags") == 0)
{
assert (mode == dump_none);
mode = dump_cflags;
}
else if (strcmp (o, "--libs") == 0)
{
assert (mode == dump_none);
mode = dump_libs;
}
else if (strcmp (o, "--vars") == 0)
{
assert (mode == dump_none);
mode = dump_vars;
}
else
break;
}
assert (mode != dump_none);
assert (i + 1 == argc);
const char* path = argv[i];
// Make sure the file has .pc extension.
//
size_t n = strlen (path);
assert (n > 3 && strcmp (path + n - 3, ".pc") == 0);
pkgconf_client_t* c =
pkgconf_client_new (error_handler, NULL /* error_handler_data */);
assert (c != NULL);
int r = 1;
int max_depth = 2000;
pkgconf_client_set_flags (c, 0);
pkgconf_pkg_t* p = pkgconf_pkg_find (c, path);
if (p != NULL)
{
int e = PKGCONF_PKG_ERRF_OK;
switch (mode)
{
case dump_cflags:
{
pkgconf_client_set_flags (c, PKGCONF_PKG_PKGF_SEARCH_PRIVATE);
pkgconf_list_t list = PKGCONF_LIST_INITIALIZER;
e = pkgconf_pkg_cflags (c, p, &list, max_depth);
if (e == PKGCONF_PKG_ERRF_OK)
frags_print_and_free (&list);
pkgconf_client_set_flags (c, 0); /* Restore. */
break;
}
case dump_libs:
{
pkgconf_list_t list = PKGCONF_LIST_INITIALIZER;
e = pkgconf_pkg_libs (c, p, &list, max_depth);
if (e == PKGCONF_PKG_ERRF_OK)
frags_print_and_free (&list);
break;
}
case dump_vars:
{
tuples_print (&p->vars);
break;
}
default:
{
assert (false);
}
}
if (e == PKGCONF_PKG_ERRF_OK)
r = 0;
pkgconf_pkg_unref (c, p);
}
else
fprintf (stderr, "package file '%s' not found or invalid\n", path);
pkgconf_client_free (c);
return r;
}
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