9a146d1244
Previously, pg_config would report the paths of the underlying postgresql derivation and not the paths of the buildEnv that postgresql.withPackages creates. That's a problem when users of pg_config use it to find PostgreSQL's sharedir, in which they'd like to find the extensions added via withPackages. Those are only linked into the created buildEnv, but not available in the postgresql derivation. By providing our own nix-support/pg_config.env file, we can swap out those paths. We also do the same for the -man output, because this output is linked into buildEnv as well. Other paths, which are not available in the buildEnv environment, will still link to the original postgresql derivation. Win-win!
123 lines
4.9 KiB
Bash
123 lines
4.9 KiB
Bash
#!@runtimeShell@
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set -euo pipefail
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# This replacement script for the pg_config binary is based on the original pg_config
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# shell script, which was removed from PostgreSQL's codebase in 2004:
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# https://github.com/postgres/postgres/commit/cc07f8cfe73f56fce1ddda4ea25d7b0b6c4f0ae9
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#
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# The main reason for removal was the ability to relocate an existing installation, which
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# is exactly the one feature that we are trying to work around in nixpkgs.
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# Going back to a shell script is much better for cross compiling.
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#
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# This file is a combination of the following two files:
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# https://github.com/postgres/postgres/blob/7510ac6203bc8e3c56eae95466feaeebfc1b4f31/src/bin/pg_config/pg_config.sh
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# https://github.com/postgres/postgres/blob/master/src/bin/pg_config/pg_config.c
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source @postgresql-dev@/nix-support/pg_config.env
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help="
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pg_config provides information about the installed version of PostgreSQL.
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Usage:
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pg_config [OPTION]...
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Options:
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--bindir show location of user executables
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--docdir show location of documentation files
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--htmldir show location of HTML documentation files
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--includedir show location of C header files of the client
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interfaces
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--pkgincludedir show location of other C header files
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--includedir-server show location of C header files for the server
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--libdir show location of object code libraries
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--pkglibdir show location of dynamically loadable modules
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--localedir show location of locale support files
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--mandir show location of manual pages
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--sharedir show location of architecture-independent support files
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--sysconfdir show location of system-wide configuration files
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--pgxs show location of extension makefile
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--configure show options given to \"configure\" script when
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PostgreSQL was built
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--cc show CC value used when PostgreSQL was built
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--cppflags show CPPFLAGS value used when PostgreSQL was built
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--cflags show CFLAGS value used when PostgreSQL was built
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--cflags_sl show CFLAGS_SL value used when PostgreSQL was built
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--ldflags show LDFLAGS value used when PostgreSQL was built
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--ldflags_ex show LDFLAGS_EX value used when PostgreSQL was built
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--ldflags_sl show LDFLAGS_SL value used when PostgreSQL was built
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--libs show LIBS value used when PostgreSQL was built
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--version show the PostgreSQL version
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-?, --help show this help, then exit
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With no arguments, all known items are shown.
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Report bugs to <${PACKAGE_BUGREPORT}>.
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${PACKAGE_NAME} home page: <${PACKAGE_URL}>"
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show=()
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for opt; do
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case "$opt" in
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--bindir) show+=("$PGBINDIR") ;;
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--docdir) show+=("$DOCDIR") ;;
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--htmldir) show+=("$HTMLDIR") ;;
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--includedir) show+=("$INCLUDEDIR") ;;
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--pkgincludedir) show+=("$PKGINCLUDEDIR") ;;
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--includedir-server) show+=("$INCLUDEDIRSERVER") ;;
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--libdir) show+=("$LIBDIR") ;;
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--pkglibdir) show+=("$PKGLIBDIR") ;;
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--localedir) show+=("$LOCALEDIR") ;;
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--mandir) show+=("$MANDIR") ;;
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--sharedir) show+=("$PGSHAREDIR") ;;
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--sysconfdir) show+=("$SYSCONFDIR") ;;
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--pgxs) show+=("$PGXS") ;;
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--configure) show+=("$CONFIGURE_ARGS") ;;
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--cc) show+=("$CC") ;;
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--cppflags) show+=("$CPPFLAGS") ;;
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--cflags) show+=("$CFLAGS") ;;
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--cflags_sl) show+=("$CFLAGS_SL") ;;
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--ldflags) show+=("$LDFLAGS") ;;
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--ldflags_ex) show+=("$LDFLAGS_EX") ;;
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--ldflags_sl) show+=("$LDFLAGS_SL") ;;
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--libs) show+=("$LIBS") ;;
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--version) show+=("PostgreSQL $PG_VERSION") ;;
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--help|-\?) echo "$help"
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exit 0 ;;
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*) >&2 echo "pg_config: invalid argument: $opt"
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>&2 echo "Try \"pg_config --help\" for more information."
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exit 1 ;;
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esac
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done
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if [ ${#show[@]} -gt 0 ]; then
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printf '%s\n' "${show[@]}"
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exit 0
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fi
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# no arguments -> print everything
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cat <<EOF
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BINDIR = $PGBINDIR
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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 = $INCLUDEDIRSERVER
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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 = $PGSHAREDIR
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SYSCONFDIR = $SYSCONFDIR
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PGXS = $PGXS
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CONFIGURE = $CONFIGURE_ARGS
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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 = PostgreSQL $PG_VERSION
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EOF
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