105 lines
2.8 KiB
Nix
105 lines
2.8 KiB
Nix
{ fetchurl
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, stdenv
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, perl
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, libxml2
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, postgresql
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, geos
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, proj
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, gdal
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, json_c
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, pkgconfig
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, file
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}:
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/*
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### NixOS - usage:
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==================
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services.postgresql.extraPlugins = [ (pkgs.postgis.override { postgresql = pkgs.postgresql_9_5; }) ];
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### important Postgis implementation details:
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=============================================
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Postgis provides a shared library implementing many operations. They are
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exposed to the Postgres SQL interpreter by special SQL queries eg:
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CREATE FUNCTION [...]
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AS '[..]liblwgeom', 'lwhistogram2d_in' LANGUAGE 'C' IMMUTABLE STRICT; -- WITH (isstrict);
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where liblwgeom is the shared library.
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Postgis < 1.5 used absolute paths, in NixOS $libdir is always used.
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Thus if you want to use postgresql dumps which were created by non NixOS
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systems you have to adopt the library path.
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### TODO:
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=========
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the bin commands to have gtk gui:
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*/
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let
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version = "2.5.0";
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sha256 = "1m9n1shhqhjrhbq6fd9fyfccxcgpng37s3lffhlmyrp98zbsnwxy";
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in stdenv.mkDerivation rec {
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name = "postgis-${version}";
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src = fetchurl {
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url = "https://download.osgeo.org/postgis/source/postgis-${builtins.toString version}.tar.gz";
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inherit sha256;
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};
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# don't pass these vars to the builder
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removeAttrs = ["sql_comments" "sql_srcs"];
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preInstall = ''
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mkdir -p $out/bin
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'';
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# create aliases for all commands adding version information
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postInstall = ''
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sql_srcs=$(for sql in ${builtins.toString sql_srcs}; do echo -n "$(find $out -iname "$sql") "; done )
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for prog in $out/bin/*; do # */
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ln -s $prog $prog-${version}
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done
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cp -r doc $out
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'';
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buildInputs = [ libxml2 postgresql geos proj perl gdal json_c pkgconfig ];
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sql_comments = "postgis_comments.sql";
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sql_srcs = ["postgis.sql" "spatial_ref_sys.sql"];
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# postgis config directory assumes /include /lib from the same root for json-c library
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NIX_LDFLAGS = "-L${stdenv.lib.getLib json_c}/lib";
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dontDisableStatic = true;
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preConfigure = ''
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sed -i 's@/usr/bin/file@${file}/bin/file@' configure
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configureFlags="--datadir=$out/share --datarootdir=$out/share --bindir=$out/bin --with-gdalconfig=${gdal}/bin/gdal-config --with-jsondir=${json_c.dev}"
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makeFlags="PERL=${perl}/bin/perl datadir=$out/share pkglibdir=$out/lib bindir=$out/bin"
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'';
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postConfigure = ''
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sed -i "s|@mkdir -p \$(DESTDIR)\$(PGSQL_BINDIR)||g ;
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s|\$(DESTDIR)\$(PGSQL_BINDIR)|$prefix/bin|g
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" \
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"raster/loader/Makefile";
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sed -i "s|\$(DESTDIR)\$(PGSQL_BINDIR)|$prefix/bin|g
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" \
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"raster/scripts/python/Makefile";
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'';
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meta = with stdenv.lib; {
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description = "Geographic Objects for PostgreSQL";
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homepage = http://postgis.refractions.net;
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license = licenses.gpl2;
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maintainers = [ maintainers.marcweber ];
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platforms = platforms.linux;
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};
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}
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