diff options
Diffstat (limited to 'pkgs/servers/sql/postgresql/pg_config.sh')
| -rw-r--r-- | pkgs/servers/sql/postgresql/pg_config.sh | 149 |
1 files changed, 117 insertions, 32 deletions
diff --git a/pkgs/servers/sql/postgresql/pg_config.sh b/pkgs/servers/sql/postgresql/pg_config.sh index d6293999a12d..d56f8ca3dd61 100644 --- a/pkgs/servers/sql/postgresql/pg_config.sh +++ b/pkgs/servers/sql/postgresql/pg_config.sh @@ -1,37 +1,122 @@ +#!@runtimeShell@ set -euo pipefail -# The real pg_config needs to be in the same path as the "postgres" binary -# to return proper paths. However, we want it in the -dev output to prevent -# cyclic references and to prevent blowing up the runtime closure. Thus, we -# have wrapped -dev/bin/pg_config to fake its argv0 to be in the default -# output. Unfortunately, pg_config tries to be smart and tries to find itself - -# which will then fail with: -# pg_config: could not find own program executable -# To counter this, we're creating *this* fake pg_config script and put it into -# the default output. The real pg_config is happy. -# Some extensions, e.g. timescaledb, use the reverse logic and look for pg_config -# in the same path as the "postgres" binary to support multi-version-installs. -# Thus, they will end up calling this script during build, even though the real -# pg_config would be available on PATH, provided by nativeBuildInputs. To help -# this case, we're redirecting the call to pg_config to the one found in PATH, -# iff we can be convinced that it belongs to our -dev output. +# This replacement script for the pg_config binary is based on the original pg_config +# shell script, which was removed from PostgreSQL's codebase in 2004: +# https://github.com/postgres/postgres/commit/cc07f8cfe73f56fce1ddda4ea25d7b0b6c4f0ae9 +# +# The main reason for removal was the ability to relocate an existing installation, which +# is exactly the one feature that we are trying to work around in nixpkgs. +# Going back to a shell script is much better for cross compiling. +# +# This file is a combination of the following two files: +# https://github.com/postgres/postgres/blob/7510ac6203bc8e3c56eae95466feaeebfc1b4f31/src/bin/pg_config/pg_config.sh +# https://github.com/postgres/postgres/blob/master/src/bin/pg_config/pg_config.c -# Avoid infinite recursion -if [[ ! -v PG_CONFIG_CALLED ]]; then - # compares "path of *this* script" with "path, which pg_config on PATH believes it is in" - if [[ "$(readlink -f -- "$0")" == "$(PG_CONFIG_CALLED=1 pg_config --bindir)/pg_config" ]]; then - # The pg_config in PATH returns the same bindir that we're actually called from. - # This means that the pg_config in PATH is the one from "our" -dev output. - # This happens when the -dev output has been put in native build - # inputs and allows us to call the real pg_config without referencing - # the -dev output itself. - exec pg_config "$@" - fi +source @postgresql-dev@/nix-support/pg_config.env + +help=" +pg_config provides information about the installed version of PostgreSQL. + +Usage: + pg_config [OPTION]... + +Options: + --bindir show location of user executables + --docdir show location of documentation files + --htmldir show location of HTML documentation files + --includedir show location of C header files of the client + interfaces + --pkgincludedir show location of other C header files + --includedir-server show location of C header files for the server + --libdir show location of object code libraries + --pkglibdir show location of dynamically loadable modules + --localedir show location of locale support files + --mandir show location of manual pages + --sharedir show location of architecture-independent support files + --sysconfdir show location of system-wide configuration files + --pgxs show location of extension makefile + --configure show options given to \"configure\" script when + PostgreSQL was built + --cc show CC value used when PostgreSQL was built + --cppflags show CPPFLAGS value used when PostgreSQL was built + --cflags show CFLAGS value used when PostgreSQL was built + --cflags_sl show CFLAGS_SL value used when PostgreSQL was built + --ldflags show LDFLAGS value used when PostgreSQL was built + --ldflags_ex show LDFLAGS_EX value used when PostgreSQL was built + --ldflags_sl show LDFLAGS_SL value used when PostgreSQL was built + --libs show LIBS value used when PostgreSQL was built + --version show the PostgreSQL version + -?, --help show this help, then exit + +With no arguments, all known items are shown. + +Report bugs to <${PACKAGE_BUGREPORT}>. +${PACKAGE_NAME} home page: <${PACKAGE_URL}>" + +show=() + +for opt; do + case "$opt" in + --bindir) show+=("$PGBINDIR") ;; + --docdir) show+=("$DOCDIR") ;; + --htmldir) show+=("$HTMLDIR") ;; + --includedir) show+=("$INCLUDEDIR") ;; + --pkgincludedir) show+=("$PKGINCLUDEDIR") ;; + --includedir-server) show+=("$INCLUDEDIRSERVER") ;; + --libdir) show+=("$LIBDIR") ;; + --pkglibdir) show+=("$PKGLIBDIR") ;; + --localedir) show+=("$LOCALEDIR") ;; + --mandir) show+=("$MANDIR") ;; + --sharedir) show+=("$PGSHAREDIR") ;; + --sysconfdir) show+=("$SYSCONFDIR") ;; + --pgxs) show+=("@postgresql-dev@/lib/pgxs/src/makefiles/pgxs.mk") ;; + --configure) show+=("$CONFIGURE_ARGS") ;; + --cc) show+=("$CC") ;; + --cppflags) show+=("$CPPFLAGS") ;; + --cflags) show+=("$CFLAGS") ;; + --cflags_sl) show+=("$CFLAGS_SL") ;; + --ldflags) show+=("$LDFLAGS") ;; + --ldflags_ex) show+=("$LDFLAGS_EX") ;; + --ldflags_sl) show+=("$LDFLAGS_SL") ;; + --libs) show+=("$LIBS") ;; + --version) show+=("PostgreSQL $PG_VERSION") ;; + --help|-\?) echo "$help" + exit 0 ;; + *) >&2 echo "pg_config: invalid argument: $opt" + >&2 echo "Try \"pg_config --help\" for more information." + exit 1 ;; + esac +done + +if [ ${#show[@]} -gt 0 ]; then + printf '%s\n' "${show[@]}" + exit 0 fi -# This will happen in one of these cases: -# - *this* script is the first on PATH -# - np pg_config on PATH -# - some other pg_config on PATH, not from our -dev output -echo The real pg_config can be found in the -dev output. -exit 1 +# no arguments -> print everything +cat <<EOF +BINDIR = $PGBINDIR +DOCDIR = $DOCDIR +HTMLDIR = $HTMLDIR +INCLUDEDIR = $INCLUDEDIR +PKGINCLUDEDIR = $PKGINCLUDEDIR +INCLUDEDIR-SERVER = $INCLUDEDIRSERVER +LIBDIR = $LIBDIR +PKGLIBDIR = $PKGLIBDIR +LOCALEDIR = $LOCALEDIR +MANDIR = $MANDIR +SHAREDIR = $PGSHAREDIR +SYSCONFDIR = $SYSCONFDIR +PGXS = @postgresql-dev@/lib/pgxs/src/makefiles/pgxs.mk +CONFIGURE = $CONFIGURE_ARGS +CC = $CC +CPPFLAGS = $CPPFLAGS +CFLAGS = $CFLAGS +CFLAGS_SL = $CFLAGS_SL +LDFLAGS = $LDFLAGS +LDFLAGS_EX = $LDFLAGS_EX +LDFLAGS_SL = $LDFLAGS_SL +LIBS = $LIBS +VERSION = PostgreSQL $PG_VERSION +EOF |