189 lines
5.8 KiB
C
189 lines
5.8 KiB
C
/*-------------------------------------------------------------------------
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*
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* pg_config.c
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*
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* This program reports various pieces of information about the
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* installed version of PostgreSQL. Packages that interface to
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* PostgreSQL can use it to configure their build.
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*
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* This is a C implementation of the previous shell script written by
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* Peter Eisentraut <peter_e@gmx.net>, with adjustments made to
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* accommodate the possibility that the installation has been relocated from
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* the place originally configured.
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*
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* author of C translation: Andrew Dunstan mailto:andrew@dunslane.net
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*
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* This code is released under the terms of the PostgreSQL License.
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*
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* Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
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*
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* src/bin/pg_config/pg_config.c
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*
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*-------------------------------------------------------------------------
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*/
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#include "postgres_fe.h"
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#include "common/config_info.h"
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#include "port.h"
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static const char *progname;
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/*
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* Table of known information items
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*
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* Be careful to keep this in sync with the help() display.
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*/
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typedef struct
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{
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const char *switchname;
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const char *configname;
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} InfoItem;
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static const InfoItem info_items[] = {
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{"--bindir", "BINDIR"},
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{"--docdir", "DOCDIR"},
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{"--htmldir", "HTMLDIR"},
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{"--includedir", "INCLUDEDIR"},
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{"--pkgincludedir", "PKGINCLUDEDIR"},
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{"--includedir-server", "INCLUDEDIR-SERVER"},
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{"--libdir", "LIBDIR"},
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{"--pkglibdir", "PKGLIBDIR"},
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{"--localedir", "LOCALEDIR"},
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{"--mandir", "MANDIR"},
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{"--sharedir", "SHAREDIR"},
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{"--sysconfdir", "SYSCONFDIR"},
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{"--pgxs", "PGXS"},
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{"--configure", "CONFIGURE"},
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{"--cc", "CC"},
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{"--cppflags", "CPPFLAGS"},
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{"--cflags", "CFLAGS"},
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{"--cflags_sl", "CFLAGS_SL"},
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{"--ldflags", "LDFLAGS"},
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{"--ldflags_ex", "LDFLAGS_EX"},
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{"--ldflags_sl", "LDFLAGS_SL"},
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{"--libs", "LIBS"},
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{"--version", "VERSION"},
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{NULL, NULL}
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};
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static void
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help(void)
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{
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printf(_("\n%s provides information about the installed version of PostgreSQL.\n\n"), progname);
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printf(_("Usage:\n"));
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printf(_(" %s [OPTION]...\n\n"), progname);
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printf(_("Options:\n"));
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printf(_(" --bindir show location of user executables\n"));
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printf(_(" --docdir show location of documentation files\n"));
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printf(_(" --htmldir show location of HTML documentation files\n"));
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printf(_(" --includedir show location of C header files of the client\n"
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" interfaces\n"));
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printf(_(" --pkgincludedir show location of other C header files\n"));
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printf(_(" --includedir-server show location of C header files for the server\n"));
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printf(_(" --libdir show location of object code libraries\n"));
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printf(_(" --pkglibdir show location of dynamically loadable modules\n"));
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printf(_(" --localedir show location of locale support files\n"));
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printf(_(" --mandir show location of manual pages\n"));
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printf(_(" --sharedir show location of architecture-independent support files\n"));
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printf(_(" --sysconfdir show location of system-wide configuration files\n"));
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printf(_(" --pgxs show location of extension makefile\n"));
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printf(_(" --configure show options given to \"configure\" script when\n"
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" PostgreSQL was built\n"));
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printf(_(" --cc show CC value used when PostgreSQL was built\n"));
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printf(_(" --cppflags show CPPFLAGS value used when PostgreSQL was built\n"));
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printf(_(" --cflags show CFLAGS value used when PostgreSQL was built\n"));
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printf(_(" --cflags_sl show CFLAGS_SL value used when PostgreSQL was built\n"));
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printf(_(" --ldflags show LDFLAGS value used when PostgreSQL was built\n"));
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printf(_(" --ldflags_ex show LDFLAGS_EX value used when PostgreSQL was built\n"));
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printf(_(" --ldflags_sl show LDFLAGS_SL value used when PostgreSQL was built\n"));
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printf(_(" --libs show LIBS value used when PostgreSQL was built\n"));
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printf(_(" --version show the PostgreSQL version\n"));
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printf(_(" -?, --help show this help, then exit\n"));
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printf(_("\nWith no arguments, all known items are shown.\n\n"));
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printf(_("Report bugs to <%s>.\n"), PACKAGE_BUGREPORT);
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}
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static void
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advice(void)
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{
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fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
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}
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static void
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show_item(const char *configname,
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ConfigData *configdata,
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size_t configdata_len)
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{
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int i;
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for (i = 0; i < configdata_len; i++)
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{
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if (strcmp(configname, configdata[i].name) == 0)
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printf("%s\n", configdata[i].setting);
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}
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}
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int
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main(int argc, char **argv)
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{
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ConfigData *configdata;
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size_t configdata_len;
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char my_exec_path[MAXPGPATH];
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int i;
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int j;
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set_pglocale_pgservice(argv[0], PG_TEXTDOMAIN("pg_config"));
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progname = get_progname(argv[0]);
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/* check for --help */
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for (i = 1; i < argc; i++)
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{
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if (strcmp(argv[i], "--help") == 0 || strcmp(argv[i], "-?") == 0)
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{
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help();
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exit(0);
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}
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}
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if (find_my_exec(argv[0], my_exec_path) < 0)
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{
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fprintf(stderr, _("%s: could not find own program executable\n"), progname);
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exit(1);
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}
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configdata = get_configdata(my_exec_path, &configdata_len);
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/* no arguments -> print everything */
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if (argc < 2)
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{
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for (i = 0; i < configdata_len; i++)
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printf("%s = %s\n", configdata[i].name, configdata[i].setting);
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exit(0);
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}
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/* otherwise print requested items */
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for (i = 1; i < argc; i++)
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{
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for (j = 0; info_items[j].switchname != NULL; j++)
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{
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if (strcmp(argv[i], info_items[j].switchname) == 0)
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{
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show_item(info_items[j].configname,
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configdata, configdata_len);
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break;
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}
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}
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if (info_items[j].switchname == NULL)
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{
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fprintf(stderr, _("%s: invalid argument: %s\n"),
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progname, argv[i]);
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advice();
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exit(1);
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}
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}
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return 0;
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}
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