pkgconf/main.c

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/*
* main.c
* main() routine, printer functions
*
* Copyright (c) 2011 William Pitcock <nenolod@dereferenced.org>.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
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#include "config.h"
#include <libgen.h>
#include "pkg.h"
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#ifdef HAVE_GETOPT_LONG
# include <getopt.h>
#else
# include "bsdstubs.h"
#endif
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/* we are compatible with 0.26 of pkg-config */
#define PKGCONFIG_VERSION_EQUIV "0.26"
#define WANT_CFLAGS_ONLY_I (19)
#define WANT_CFLAGS_ONLY_OTHER (20)
#define WANT_LIBS_ONLY_LDPATH (21)
#define WANT_LIBS_ONLY_LIBNAME (22)
#define WANT_LIBS_ONLY_OTHER (23)
static unsigned int global_traverse_flags = PKGF_NONE;
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static int want_help = 0;
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static int want_version = 0;
static int want_cflags = 0;
static int want_libs = 0;
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static int want_modversion = 0;
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static int want_static = 0;
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static int want_requires = 0;
static int want_requires_private = 0;
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static int want_variables = 0;
static int want_digraph = 0;
static int want_env_only = 0;
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static int maximum_traverse_depth = 2;
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static char *required_pkgconfig_version = NULL;
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static char *required_module_version = NULL;
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static char *want_variable = NULL;
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static bool
fragment_has_system_dir(pkg_fragment_t *frag)
{
switch (frag->type)
{
case 'L':
if (!strcasecmp(LIBDIR, frag->data))
return true;
case 'I':
if (!strcasecmp(INCLUDEDIR, frag->data))
return true;
default:
break;
}
return false;
}
static void
print_fragment(pkg_fragment_t *frag)
{
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if (fragment_has_system_dir(frag))
return;
if (frag->type)
printf("-%c%s ", frag->type, frag->data);
else
printf("%s ", frag->data);
}
static void
collect_cflags(pkg_t *pkg, void *data)
{
pkg_fragment_t **list = data;
pkg_fragment_t *frag;
foreach_list_entry(pkg->cflags, frag)
*list = pkg_fragment_copy(*list, frag);
}
static void
print_cflags(pkg_fragment_t *list)
{
pkg_fragment_t *frag;
foreach_list_entry(list, frag)
{
if (want_cflags == WANT_CFLAGS_ONLY_I && frag->type != 'I')
continue;
else if (want_cflags == WANT_CFLAGS_ONLY_OTHER && frag->type == 'I')
continue;
print_fragment(frag);
}
}
static void
collect_libs(pkg_t *pkg, void *data)
{
pkg_fragment_t **list = data;
pkg_fragment_t *frag;
foreach_list_entry(pkg->libs, frag)
*list = pkg_fragment_copy(*list, frag);
if (want_static)
{
foreach_list_entry(pkg->libs_private, frag)
*list = pkg_fragment_copy(*list, frag);
}
}
static void
print_libs(pkg_fragment_t *list)
{
pkg_fragment_t *frag;
foreach_list_entry(list, frag)
{
if (want_libs == WANT_LIBS_ONLY_LDPATH && frag->type != 'L')
continue;
else if (want_libs == WANT_LIBS_ONLY_LIBNAME && frag->type != 'l')
continue;
else if (want_libs == WANT_LIBS_ONLY_OTHER && (frag->type == 'l' || frag->type == 'L'))
continue;
print_fragment(frag);
}
}
static void
print_modversion(pkg_t *pkg, void *unused)
{
(void) unused;
if (pkg->version != NULL)
printf("%s\n", pkg->version);
}
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static void
print_variable(pkg_t *pkg, void *unused)
{
const char *variable_tmpl;
(void) unused;
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variable_tmpl = tuple_find(pkg->vars, want_variable);
if (variable_tmpl != NULL)
{
char *var = strdup_parse(pkg, variable_tmpl);
printf("%s", var);
free(var);
exit(EXIT_SUCCESS);
}
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}
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static void
print_variables(pkg_t *pkg, void *unused)
{
pkg_tuple_t *node;
(void) unused;
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foreach_list_entry(pkg->vars, node)
printf("%s\n", node->key);
}
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static void
print_requires(pkg_t *pkg, void *unused)
{
pkg_dependency_t *node;
(void) unused;
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foreach_list_entry(pkg->requires, node)
{
printf("%s", node->package);
if (node->version != NULL)
printf(" %s %s", pkg_get_comparator(node), node->version);
printf("\n");
}
}
static void
print_requires_private(pkg_t *pkg, void *unused)
{
pkg_dependency_t *node;
(void) unused;
foreach_list_entry(pkg->requires_private, node)
{
printf("%s", node->package);
if (node->version != NULL)
printf(" %s %s", pkg_get_comparator(node), node->version);
printf("\n");
}
}
static void
print_digraph_node(pkg_t *pkg, void *unused)
{
pkg_dependency_t *node;
(void) unused;
printf("\"%s\" [fontname=Sans fontsize=8]\n", pkg->id);
foreach_list_entry(pkg->requires, node)
{
printf("\"%s\" -- \"%s\" [fontname=Sans fontsize=8]\n", node->package, pkg->id);
}
}
typedef struct pkg_queue_ {
struct pkg_queue_ *prev, *next;
const char *package;
} pkg_queue_t;
static pkg_queue_t *
pkg_queue_push(pkg_queue_t *parent, const char *package)
{
pkg_queue_t *pkgq = calloc(sizeof(pkg_queue_t), 1);
pkgq->package = package;
pkgq->prev = parent;
if (pkgq->prev != NULL)
pkgq->prev->next = pkgq;
return pkgq;
}
int
pkg_queue_walk(pkg_queue_t *head)
{
int wanted_something = 0;
pkg_queue_t *pkgq;
pkg_t world = (pkg_t){
.id = "world",
.realname = "virtual"
};
/* if maximum_traverse_depth is one, then we will not traverse deeper
* than our virtual package.
*/
if (!maximum_traverse_depth)
maximum_traverse_depth = -1;
else if (maximum_traverse_depth > 0)
maximum_traverse_depth++;
foreach_list_entry(head, pkgq)
{
pkg_dependency_t *pkgdep;
pkgdep = parse_deplist(&world, pkgq->package);
world.requires = pkg_dependency_append(world.requires, pkgdep);
}
/* we should verify that the graph is complete before attempting to compute cflags etc. */
pkg_verify_graph(&world, maximum_traverse_depth, global_traverse_flags);
if (want_digraph)
{
printf("graph deptree {\n");
printf("edge [color=blue len=7.5 fontname=Sans fontsize=8]\n");
printf("node [fontname=Sans fontsize=8]\n");
pkg_traverse(&world, print_digraph_node, NULL, maximum_traverse_depth, global_traverse_flags);
printf("}\n");
return EXIT_SUCCESS;
}
if (want_modversion)
{
wanted_something = 0;
want_cflags = 0;
want_libs = 0;
pkg_traverse(&world, print_modversion, NULL, 2, global_traverse_flags);
}
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if (want_variables)
{
wanted_something = 0;
want_cflags = 0;
want_libs = 0;
pkg_traverse(&world, print_variables, NULL, 3, global_traverse_flags);
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}
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if (want_requires)
{
pkg_dependency_t *iter;
wanted_something = 0;
want_cflags = 0;
want_libs = 0;
foreach_list_entry(world.requires, iter)
{
pkg_t *pkg;
pkg = pkg_verify_dependency(iter, global_traverse_flags, NULL);
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print_requires(pkg, NULL);
}
}
if (want_requires_private)
{
pkg_dependency_t *iter;
wanted_something = 0;
want_cflags = 0;
want_libs = 0;
foreach_list_entry(world.requires, iter)
{
pkg_t *pkg;
pkg = pkg_verify_dependency(iter, global_traverse_flags | PKGF_SEARCH_PRIVATE, NULL);
print_requires_private(pkg, NULL);
}
}
if (want_cflags)
{
pkg_fragment_t *list = NULL;
wanted_something++;
pkg_traverse(&world, collect_cflags, &list, maximum_traverse_depth, global_traverse_flags | PKGF_SEARCH_PRIVATE);
print_cflags(list);
}
if (want_libs)
{
pkg_fragment_t *list = NULL;
wanted_something++;
pkg_traverse(&world, collect_libs, &list, maximum_traverse_depth, global_traverse_flags);
print_libs(list);
}
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if (want_variable)
{
wanted_something++;
pkg_traverse(&world, print_variable, NULL, 3, global_traverse_flags);
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}
if (wanted_something)
printf("\n");
return EXIT_SUCCESS;
}
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static void
version(void)
{
printf("%s %s\n", PACKAGE_NAME, PACKAGE_VERSION);
}
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static void
usage(void)
{
printf("usage: %s [OPTIONS] [LIBRARIES]\n", PACKAGE_NAME);
printf("\nbasic options:\n\n");
printf(" --help this message\n");
printf(" --version print pkgconf version to stdout\n");
printf(" --atleast-pkgconfig-version check whether or not pkgconf is compatible\n");
printf(" with a specified pkg-config version\n");
printf("\nchecking specific pkg-config database entries:\n\n");
printf(" --atleast-version require a specific version of a module\n");
printf(" --exists check whether or not a module exists\n");
printf(" --maximum-traverse-depth maximum allowed depth for dependency graph\n");
printf(" --static be more aggressive when computing dependency graph\n");
printf(" (for static linking)\n");
printf(" --env-only look only for package entries in PKG_CONFIG_PATH\n");
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printf("\nquerying specific pkg-config database fields:\n\n");
printf(" --variable=varname print specified variable entry to stdout\n");
printf(" --cflags print required CFLAGS to stdout\n");
printf(" --cflags-only-I print required include-dir CFLAGS to stdout\n");
printf(" --cflags-only-other print required non-include-dir CFLAGS to stdout\n");
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printf(" --libs print required linker flags to stdout\n");
printf(" --libs-only-L print required LDPATH linker flags to stdout\n");
printf(" --libs-only-l print required LIBNAME linker flags to stdout\n");
printf(" --libs-only-other print required other linker flags to stdout\n");
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printf(" --print-requires print required dependency frameworks to stdout\n");
printf(" --print-requires-private print required dependency frameworks for static\n");
printf(" linking to stdout\n");
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printf(" --print-variables print all known variables in module to stdout\n");
printf(" --digraph print entire dependency graph in graphviz 'dot' format\n");
printf("\nreport bugs to <%s>.\n", PACKAGE_BUGREPORT);
}
int
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main(int argc, char *argv[])
{
int ret;
pkg_queue_t *pkgq = NULL;
pkg_queue_t *pkgq_head = NULL;
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struct option options[] = {
{ "version", no_argument, &want_version, 1, },
{ "atleast-version", required_argument, NULL, 2, },
{ "atleast-pkgconfig-version", required_argument, NULL, 3, },
{ "libs", no_argument, &want_libs, 4, },
{ "cflags", no_argument, &want_cflags, 5, },
{ "modversion", no_argument, &want_modversion, 6, },
{ "variable", required_argument, NULL, 7, },
{ "exists", no_argument, NULL, 8, },
{ "print-errors", no_argument, NULL, 9, },
{ "short-errors", no_argument, NULL, 10, },
{ "maximum-traverse-depth", required_argument, NULL, 11, },
{ "static", no_argument, &want_static, 12, },
{ "print-requires", no_argument, &want_requires, 13, },
{ "print-variables", no_argument, &want_variables, 14, },
{ "digraph", no_argument, &want_digraph, 15, },
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{ "help", no_argument, &want_help, 16, },
{ "env-only", no_argument, &want_env_only, 17, },
{ "print-requires-private", no_argument, &want_requires_private, 18, },
{ "cflags-only-I", no_argument, &want_cflags, WANT_CFLAGS_ONLY_I, },
{ "cflags-only-other", no_argument, &want_cflags, WANT_CFLAGS_ONLY_OTHER, },
{ "libs-only-L", no_argument, &want_libs, WANT_LIBS_ONLY_LDPATH, },
{ "libs-only-l", no_argument, &want_libs, WANT_LIBS_ONLY_LIBNAME, },
{ "libs-only-other", no_argument, &want_libs, WANT_LIBS_ONLY_OTHER, },
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{ NULL, 0, NULL, 0 }
};
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while ((ret = getopt_long(argc, argv, "", options, NULL)) != -1)
{
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switch (ret)
{
case 2:
required_module_version = optarg;
break;
case 3:
required_pkgconfig_version = optarg;
break;
case 7:
want_variable = optarg;
break;
case 11:
maximum_traverse_depth = atoi(optarg);
break;
default:
break;
}
}
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if (want_version)
{
version();
return EXIT_SUCCESS;
}
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if (want_help)
{
usage();
return EXIT_SUCCESS;
}
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if (want_static)
global_traverse_flags |= PKGF_SEARCH_PRIVATE;
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if (want_env_only)
global_traverse_flags |= PKGF_ENV_ONLY;
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if (required_pkgconfig_version != NULL)
{
if (pkg_compare_version(PKGCONFIG_VERSION_EQUIV, required_pkgconfig_version) >= 0)
return EXIT_SUCCESS;
return EXIT_FAILURE;
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}
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if (required_module_version != NULL)
{
pkg_t *pkg;
const char *package;
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package = argv[optind];
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if (package == NULL)
return EXIT_SUCCESS;
pkg = pkg_find(package, global_traverse_flags);
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if (pkg == NULL)
return EXIT_FAILURE;
if (pkg_compare_version(pkg->version, required_module_version) >= 0)
return EXIT_SUCCESS;
return EXIT_FAILURE;
}
while (1)
{
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const char *package = argv[optind++];
if (package == NULL)
break;
pkgq = pkg_queue_push(pkgq, package);
if (pkgq_head == NULL)
pkgq_head = pkgq;
}
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if (pkgq_head == NULL)
{
fprintf(stderr, "Please specify at least one package name on the command line.\n");
return EXIT_FAILURE;
}
return pkg_queue_walk(pkgq_head);
}