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|
{ fetchurl
, stdenv
, perl
, libxml2
, postgresql
, geos
, proj
, gdal
, json_c
, pkgconfig
, file
}:
/*
### NixOS - usage:
==================
services.postgresql.extraPlugins = [ (pkgs.postgis.override { postgresql = pkgs.postgresql95; }) ];
### 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 $libdir is always used.
Thus if you want to use postgresql dumps which were created by non NixOS
systems you have to adopt the library path.
### TODO:
=========
the bin commands to have gtk gui:
*/
let
version = "2.5.0";
sha256 = "1m9n1shhqhjrhbq6fd9fyfccxcgpng37s3lffhlmyrp98zbsnwxy";
in stdenv.mkDerivation rec {
name = "postgis-${version}";
src = fetchurl {
url = "https://download.osgeo.org/postgis/source/postgis-${builtins.toString version}.tar.gz";
inherit sha256;
};
# don't pass these vars to the builder
removeAttrs = ["sql_comments" "sql_srcs"];
preInstall = ''
mkdir -p $out/bin
'';
# create aliases for all commands adding version information
postInstall = ''
sql_srcs=$(for sql in ${builtins.toString sql_srcs}; do echo -n "$(find $out -iname "$sql") "; done )
for prog in $out/bin/*; do # */
ln -s $prog $prog-${version}
done
cp -r doc $out
'';
buildInputs = [ libxml2 postgresql geos proj perl gdal json_c pkgconfig ];
sql_comments = "postgis_comments.sql";
sql_srcs = ["postgis.sql" "spatial_ref_sys.sql"];
# postgis config directory assumes /include /lib from the same root for json-c library
NIX_LDFLAGS = "-L${stdenv.lib.getLib json_c}/lib";
dontDisableStatic = true;
preConfigure = ''
sed -i 's@/usr/bin/file@${file}/bin/file@' configure
configureFlags="--datadir=$out/share --datarootdir=$out/share --bindir=$out/bin --with-gdalconfig=${gdal}/bin/gdal-config --with-jsondir=${json_c.dev}"
makeFlags="PERL=${perl}/bin/perl datadir=$out/share pkglibdir=$out/lib bindir=$out/bin"
'';
postConfigure = ''
sed -i "s|@mkdir -p \$(DESTDIR)\$(PGSQL_BINDIR)||g ;
s|\$(DESTDIR)\$(PGSQL_BINDIR)|$prefix/bin|g
" \
"raster/loader/Makefile";
sed -i "s|\$(DESTDIR)\$(PGSQL_BINDIR)|$prefix/bin|g
" \
"raster/scripts/python/Makefile";
'';
meta = with stdenv.lib; {
description = "Geographic Objects for PostgreSQL";
homepage = http://postgis.refractions.net;
license = licenses.gpl2;
maintainers = [ maintainers.marcweber ];
platforms = platforms.linux;
};
}
|