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 'as is' and without any warranty, express or
* implied. In no event shall the authors be liable for any damages arising
* from the use of this software.
*/
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#include "config.h"
#include "pkg.h"
#include "bsdstubs.h"
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#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 want_uninstalled = 0;
static int want_no_uninstalled = 0;
static int want_keep_system_cflags = 0;
static int want_keep_system_libs = 0;
static int want_ignore_conflicts = 0;
static int maximum_traverse_depth = -1;
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static char *required_pkgconfig_version = NULL;
static char *required_exact_module_version = NULL;
static char *required_max_module_version = NULL;
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static char *required_module_version = NULL;
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static char *want_variable = NULL;
static char *sysroot_dir = NULL;
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FILE *error_msgout = NULL;
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static bool
fragment_has_system_dir(pkg_fragment_t *frag)
{
switch (frag->type)
{
case 'L':
if (!want_keep_system_libs && !strcasecmp(LIBDIR, frag->data))
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return true;
case 'I':
if (!want_keep_system_cflags && !strcasecmp(INCLUDEDIR, frag->data))
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return true;
default:
break;
}
return false;
}
static inline const char *
print_sysroot_dir(pkg_fragment_t *frag)
{
if (sysroot_dir == NULL)
return "";
else switch (frag->type)
{
case 'L':
case 'I':
return sysroot_dir;
default:
break;
}
return "";
}
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%s ", frag->type, print_sysroot_dir(frag), frag->data);
else
printf("%s ", frag->data);
}
static void
print_cflags(pkg_fragment_t *list)
{
pkg_fragment_t *frag;
PKG_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
print_libs(pkg_fragment_t *list)
{
pkg_fragment_t *frag;
PKG_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, unsigned int flags)
{
(void) unused;
(void) flags;
if (pkg->version != NULL)
printf("%s\n", pkg->version);
}
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static void
print_variable(pkg_t *pkg, void *unused, unsigned int flags)
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{
const char *var;
(void) unused;
(void) flags;
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var = pkg_tuple_find(pkg->vars, want_variable);
if (var != NULL)
printf("%s", var);
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}
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static void
print_variables(pkg_t *pkg, void *unused, unsigned int flags)
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{
pkg_tuple_t *node;
(void) unused;
(void) flags;
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PKG_FOREACH_LIST_ENTRY(pkg->vars, node)
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printf("%s\n", node->key);
}
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static void
print_requires(pkg_t *pkg)
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{
pkg_dependency_t *node;
PKG_FOREACH_LIST_ENTRY(pkg->requires, node)
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{
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)
{
pkg_dependency_t *node;
PKG_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, unsigned int flags)
{
pkg_dependency_t *node;
(void) unused;
(void) flags;
printf("\"%s\" [fontname=Sans fontsize=8]\n", pkg->id);
PKG_FOREACH_LIST_ENTRY(pkg->requires, node)
{
printf("\"%s\" -- \"%s\" [fontname=Sans fontsize=8]\n", node->package, pkg->id);
}
}
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static void
check_uninstalled(pkg_t *pkg, void *data, unsigned int flags)
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{
int *retval = data;
(void) flags;
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if (pkg->uninstalled)
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*retval = EXIT_SUCCESS;
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}
typedef struct pkg_queue_ {
struct pkg_queue_ *prev, *next;
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 = strdup(package);
pkgq->prev = parent;
if (pkgq->prev != NULL)
pkgq->prev->next = pkgq;
return pkgq;
}
int
pkg_queue_walk(pkg_queue_t *head)
{
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int retval = EXIT_SUCCESS;
int wanted_something = 0;
pkg_queue_t *pkgq, *next_pkgq;
pkg_t world = (pkg_t){
.id = "world",
.realname = "virtual",
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.flags = PKG_PROPF_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++;
PKG_FOREACH_LIST_ENTRY_SAFE(head, next_pkgq, pkgq)
{
pkg_dependency_t *pkgdep;
pkgdep = pkg_dependency_parse(&world, pkgq->package);
if (pkgdep != NULL)
world.requires = pkg_dependency_append(world.requires, pkgdep);
else
retval = EXIT_FAILURE;
free(pkgq->package);
free(pkgq);
}
/* we couldn't build the entire depgraph, so bail. */
if (retval != EXIT_SUCCESS)
goto out;
/* we should verify that the graph is complete before attempting to compute cflags etc. */
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if (pkg_verify_graph(&world, maximum_traverse_depth, global_traverse_flags) != PKG_ERRF_OK)
{
retval = EXIT_FAILURE;
goto out;
}
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if (want_uninstalled)
{
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retval = 1;
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wanted_something = 0;
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pkg_traverse(&world, check_uninstalled, &retval, maximum_traverse_depth, global_traverse_flags);
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goto out;
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}
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");
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goto out;
}
if (want_modversion)
{
wanted_something = 0;
want_cflags = 0;
want_libs = 0;
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pkg_traverse(&world, print_modversion, NULL, 2, global_traverse_flags);
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goto out;
}
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if (want_variables)
{
wanted_something = 0;
want_cflags = 0;
want_libs = 0;
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pkg_traverse(&world, print_variables, NULL, 2, global_traverse_flags);
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goto out;
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}
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if (want_requires)
{
pkg_dependency_t *iter;
wanted_something = 0;
want_cflags = 0;
want_libs = 0;
PKG_FOREACH_LIST_ENTRY(world.requires, iter)
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{
pkg_t *pkg;
pkg = pkg_verify_dependency(iter, global_traverse_flags, NULL);
print_requires(pkg);
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pkg_free(pkg);
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}
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goto out;
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}
if (want_requires_private)
{
pkg_dependency_t *iter;
wanted_something = 0;
want_cflags = 0;
want_libs = 0;
PKG_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);
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pkg_free(pkg);
}
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goto out;
}
if (want_cflags)
{
pkg_fragment_t *list;
wanted_something++;
list = pkg_cflags(&world, maximum_traverse_depth, global_traverse_flags | PKGF_SEARCH_PRIVATE);
print_cflags(list);
pkg_fragment_free(list);
}
if (want_libs)
{
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pkg_fragment_t *list;
wanted_something++;
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list = pkg_libs(&world, maximum_traverse_depth, global_traverse_flags);
print_libs(list);
pkg_fragment_free(list);
}
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if (want_variable)
{
wanted_something++;
pkg_traverse(&world, print_variable, NULL, 2, global_traverse_flags | PKGF_SKIP_ROOT_VIRTUAL);
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}
if (wanted_something)
printf("\n");
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out:
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pkg_free(&world);
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return retval;
}
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static void
version(void)
{
printf("%s %s%s\n", PACKAGE_NAME, PACKAGE_VERSION, HAVE_STRICT_MODE ? " [strict]" : " [pkg-config compatible]");
printf("Copyright (c) 2011 - 2012 William Pitcock <nenolod@dereferenced.org>.\n\n");
printf("Permission to use, copy, modify, and/or distribute this software for any\n");
printf("purpose with or without fee is hereby granted, provided that the above\n");
printf("copyright notice and this permission notice appear in all copies.\n\n");
printf("This software is provided 'as is' and without any warranty, express or\n");
printf("implied. In no event shall the authors be liable for any damages arising\n");
printf("from the use of this software.\n\n");
printf("Report bugs at <%s>.\n", PACKAGE_BUGREPORT);
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}
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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(" --errors-to-stdout print all errors on stdout instead of stderr\n");
printf(" --silence-errors explicitly be silent about errors\n");
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printf("\nchecking specific pkg-config database entries:\n\n");
printf(" --atleast-version require a specific version of a module\n");
printf(" --exact-version require an exact version of a module\n");
printf(" --max-version require a maximum version of a module\n");
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printf(" --exists check whether or not a module exists\n");
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printf(" --uninstalled check whether or not an uninstalled module will be used\n");
printf(" --no-uninstalled never use uninstalled modules when satisfying dependencies\n");
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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");
printf(" --ignore-conflicts ignore 'conflicts' rules in modules\n");
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printf("\nquerying specific pkg-config database fields:\n\n");
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printf(" --define-variable=varname=value define variable 'varname' as 'value'\n");
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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(" --keep-system-cflags keep -I%s entries in cflags output\n", INCLUDEDIR);
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printf(" --keep-system-libs keep -L%s entries in libs output\n", LIBDIR);
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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;
char *builddir;
int want_errors_on_stdout = 0;
int want_silence_errors = 1;
struct pkg_option options[] = {
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{ "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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{ "uninstalled", no_argument, &want_uninstalled, 24, },
{ "no-uninstalled", no_argument, &want_no_uninstalled, 25, },
{ "keep-system-cflags", no_argument, &want_keep_system_cflags, 26, },
{ "keep-system-libs", no_argument, &want_keep_system_libs, 26, },
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{ "define-variable", required_argument, NULL, 27, },
{ "exact-version", required_argument, NULL, 28, },
{ "max-version", required_argument, NULL, 29, },
{ "ignore-conflicts", no_argument, &want_ignore_conflicts, 30, },
{ "errors-to-stdout", no_argument, &want_errors_on_stdout, 31, },
{ "silence-errors", no_argument, &want_silence_errors, 32, },
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{ NULL, 0, NULL, 0 }
};
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while ((ret = pkg_getopt_long_only(argc, argv, "", options, NULL)) != -1)
{
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switch (ret)
{
case 2:
required_module_version = pkg_optarg;
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break;
case 3:
required_pkgconfig_version = pkg_optarg;
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break;
case 7:
want_variable = pkg_optarg;
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break;
case 11:
maximum_traverse_depth = atoi(pkg_optarg);
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break;
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case 27:
pkg_tuple_define_global(pkg_optarg);
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break;
case 28:
required_exact_module_version = pkg_optarg;
break;
case 29:
required_max_module_version = pkg_optarg;
break;
case '?':
case ':':
return EXIT_FAILURE;
break;
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default:
break;
}
}
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if (want_version)
{
version();
return EXIT_SUCCESS;
}
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if (want_help)
{
usage();
return EXIT_SUCCESS;
}
error_msgout = stderr;
if (want_errors_on_stdout)
error_msgout = stdout;
if (want_silence_errors)
error_msgout = fopen(PATH_DEV_NULL, "w");
if (want_ignore_conflicts || getenv("PKG_CONFIG_IGNORE_CONFLICTS") != NULL)
global_traverse_flags |= PKGF_SKIP_CONFLICTS;
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if (want_static)
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global_traverse_flags |= (PKGF_SEARCH_PRIVATE | PKGF_MERGE_PRIVATE_FRAGMENTS);
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if (want_env_only)
global_traverse_flags |= PKGF_ENV_ONLY;
if (want_no_uninstalled || getenv("PKG_CONFIG_DISABLE_UNINSTALLED") != NULL)
global_traverse_flags |= PKGF_NO_UNINSTALLED;
if (getenv("PKG_CONFIG_ALLOW_SYSTEM_CFLAGS") != NULL)
want_keep_system_cflags = 1;
if (getenv("PKG_CONFIG_ALLOW_SYSTEM_LIBS") != NULL)
want_keep_system_libs = 1;
if ((builddir = getenv("PKG_CONFIG_TOP_BUILD_DIR")) != NULL)
pkg_tuple_add_global("pc_top_builddir", builddir);
else
pkg_tuple_add_global("pc_top_builddir", "$(top_builddir)");
if ((sysroot_dir = getenv("PKG_CONFIG_SYSROOT_DIR")) != NULL)
pkg_tuple_add_global("pc_sysrootdir", sysroot_dir);
else
pkg_tuple_add_global("pc_sysrootdir", "/");
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if (required_pkgconfig_version != NULL)
{
if (pkg_compare_version(PKG_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;
pkg_dependency_t *pkghead = NULL, *pkgiter = NULL;
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while (argv[pkg_optind])
{
pkghead = pkg_dependency_parse_str(pkghead, argv[pkg_optind]);
pkg_optind++;
}
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PKG_FOREACH_LIST_ENTRY(pkghead, pkgiter)
{
pkg = pkg_find(pkgiter->package, global_traverse_flags);
if (pkg == NULL)
return EXIT_FAILURE;
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if (pkg_compare_version(pkg->version, required_module_version) >= 0)
return EXIT_SUCCESS;
}
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return EXIT_FAILURE;
}
if (required_exact_module_version != NULL)
{
pkg_t *pkg;
pkg_dependency_t *pkghead = NULL, *pkgiter = NULL;
while (argv[pkg_optind])
{
pkghead = pkg_dependency_parse_str(pkghead, argv[pkg_optind]);
pkg_optind++;
}
PKG_FOREACH_LIST_ENTRY(pkghead, pkgiter)
{
pkg = pkg_find(pkgiter->package, global_traverse_flags);
if (pkg == NULL)
return EXIT_FAILURE;
if (pkg_compare_version(pkg->version, required_exact_module_version) == 0)
return EXIT_SUCCESS;
}
return EXIT_FAILURE;
}
if (required_max_module_version != NULL)
{
pkg_t *pkg;
pkg_dependency_t *pkghead = NULL, *pkgiter = NULL;
while (argv[pkg_optind])
{
pkghead = pkg_dependency_parse_str(pkghead, argv[pkg_optind]);
pkg_optind++;
}
PKG_FOREACH_LIST_ENTRY(pkghead, pkgiter)
{
pkg = pkg_find(pkgiter->package, global_traverse_flags);
if (pkg == NULL)
return EXIT_FAILURE;
if (pkg_compare_version(pkg->version, required_max_module_version) <= 0)
return EXIT_SUCCESS;
}
return EXIT_FAILURE;
}
while (1)
{
const char *package = argv[pkg_optind];
if (package == NULL)
break;
if (argv[pkg_optind + 1] == NULL || !PKG_OPERATOR_CHAR(*(argv[pkg_optind + 1])))
{
pkgq = pkg_queue_push(pkgq, package);
if (pkgq_head == NULL)
pkgq_head = pkgq;
pkg_optind++;
}
else
{
char packagebuf[BUFSIZ];
snprintf(packagebuf, sizeof packagebuf, "%s %s %s", package, argv[pkg_optind + 1], argv[pkg_optind + 2]);
pkg_optind += 3;
pkgq = pkg_queue_push(pkgq, packagebuf);
if (pkgq_head == NULL)
pkgq_head = pkgq;
}
}
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if (pkgq_head == NULL)
{
fprintf(error_msgout, "Please specify at least one package name on the command line.\n");
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return EXIT_FAILURE;
}
ret = pkg_queue_walk(pkgq_head);
pkg_tuple_free_global();
return ret;
}