args@{fetchurl, composableDerivation, stdenv, perl, libxml2, postgresql, geos, proj, flex, ...}: /* ### NixOS - usage: ================== services.posgresql.extraPlugins = [ pkgs.postgis.v_1_5_1 ]; or if you want to install 1.5.x and 1.3.x at the same time (which works because the .sql and .so files have different names): services.postgis.extraPlugins = [ (pkgs.buildEnv { name = "postgis-plugins"; ignoreCollisions = 1; # scripts will collide - but there are aliases with version suffixes paths = [ pkgs.postgis.v_1_3_5 pkgs.postgis.v_1_5_1 ]; })]; By now it is only supported installing one of the 1.3.x verions because their shared libraries don't differ in naming. ### important Postgis implementation details: ============================================= Postgis provides a shared library implementing many operations. They are exposed to the Postgres SQL interpreter by special SQL queries eg: CREATE FUNCTION [...] AS '[..]liblwgeom', 'lwhistogram2d_in' LANGUAGE 'C' IMMUTABLE STRICT; -- WITH (isstrict); where liblwgeom is the shared library. Postgis < 1.5 used absolute paths, in NixOS $libdir is always used. Thus if you want to use postgresql dumps which were created by non NixOS systems you have to adopt the library path. ### TODO: ========= the bin commands to have gtk gui: */ let pgDerivationBase = composableDerivation.composableDerivation {} ( fix : let version = fix.fixed.version; in { name = "postgis-${version}"; src = fetchurl { url = "http://postgis.refractions.net/download/postgis-${fix.fixed.version}.tar.gz"; inherit (fix.fixed) sha256; }; # don't pass these vars to the builder removeAttrs = ["hash" "sql_comments" "sql_srcs"]; preConfigure = '' configureFlags="--datadir=$out/share --datarootdir=$out/share --bindir=$out/bin" makeFlags="PERL=${perl}/bin/perl datadir=$out/share pkglibdir=$out/lib bindir=$out/bin" ''; pg_db_postgis_enable = ./pg_db_postgis_enable.sh; scriptNames = [ "pg_db_postgis_enable" ]; # helper scripts # prepare fixed parameters for script and create pg_db_postgis_enable script. # The script just loads postgis features into a list of given databases postgisEnableScript = '' s=$out/bin/pg_db_postgis_enable sql_comments=$out/share/postgis-${version}/comments.sql mkdir -p $(dirname $sql_comments) cp $(find -iname ${fix.fixed.sql_comments}) $sql_comments for script in $scriptNames; do tg=$out/bin/$script substituteAll ''${!script} $tg chmod +x $tg done ''; # create a script enabling postgis features # also create aliases for all commands adding version information postInstall = '' sql_srcs=$(for sql in ${builtins.toString fix.fixed.sql_srcs}; do echo -n "$(find $out -iname "$sql") "; done ) eval "$postgisEnableScript" eval "$postgisFixLibScript" for prog in $out/bin/*; do ln -s $prog $prog-${version} done cp -r doc $out ''; buildInputs = [libxml2 postgresql geos proj perl]; sql_comments = "postgis_comments.sql"; meta = { description = "Geographic Objects for PostgreSQL"; homepage = "http://postgis.refractions.net"; license = stdenv.lib.licenses.gpl2; maintainers = [stdenv.lib.maintainers.marcweber]; platforms = stdenv.lib.platforms.linux; }; }); in rec { # these builders just add some custom informaton to the receipe above v_1_3_5 = pgDerivationBase.merge ( fix: { version = "1.3.5"; buildInputs = [ flex ]; sha256 = "102d5ybn0db1wrb249dga2v8347vysd4f1brc8zb82d7vdd34wyq"; sql_srcs = ["lwpostgis.sql" "spatial_ref_sys.sql"]; pg_db_postgis_fix_or_load_sql_dump = ./pg_db_postgis_fix_or_load_sql_dump.sh; libName = "liblwgeom"; scriptNames = [ "pg_db_postgis_enable" "pg_db_postgis_fix_or_load_sql_dump"]; # helper scripts # sql_srcs is defined in postInstall source above # if store path changes sql should not break. So replace absolute path to # shared library by path relatve to $libdir known by Postgres. postInstall = '' sed -i "s@AS '$out/lib/liblwgeom@AS '\$libdir/liblwgeom@" $sql_srcs $out/share/lwpostgis_upgrade.sql ''; }); v_1_3_6 = v_1_3_5.merge ({ version = "1.3.6"; sha256 = "0i6inyiwc5zgf5a4ssg0y774f8vn45zn5c38ccgnln9r6i54vc6k"; }); v_1_5_1 = pgDerivationBase.merge ( fix : { version = "1.5.1"; sha256 = "0nymvqqi6pp4nh4dcshzqm76x4sraf119jp7l27c2q1lygm6p6jr"; sql_srcs = ["postgis.sql" "spatial_ref_sys.sql"]; }); }