postgresql package: build enhancements. (#10877)

We add new variants to handle readline vs libedit, a client-only
build and install, and bindings to TCL, Python and Perl. We also add
new versions and the ability to detect remote versions not otherwise
dealt with.

var/spack/repos/builtin/packages/postgresql/package.py

@@ -14,22 +14,98 @@ class Postgresql(AutotoolsPackage):
 
     homepage = "http://www.postgresql.org/"
     url      = "http://ftp.postgresql.org/pub/source/v9.3.4/postgresql-9.3.4.tar.bz2"
+    list_url = "http://ftp.postgresql.org/pub/source"
+    list_depth = 1
 
+    version('11.2',   sha256='2676b9ce09c21978032070b6794696e0aa5a476e3d21d60afc036dc0a9c09405')
+    version('11.1',   sha256='90815e812874831e9a4bf6e1136bf73bc2c5a0464ef142e2dfea40cda206db08')
+    version('11.0',   sha256='bf9bba03d0c3902c188af12e454b35343c4a9bf9e377ec2fe50132efb44ef36b')
+    version('10.7',   sha256='bfed1065380c1bba927bfe51f23168471373f26e3324cbad859269cc32733ede')
+    version('10.6',   sha256='68a8276f08bda8fbefe562faaf8831cb20664a7a1d3ffdbbcc5b83e08637624b')
+    version('10.5',   sha256='6c8e616c91a45142b85c0aeb1f29ebba4a361309e86469e0fb4617b6a73c4011')
+    version('10.4',   sha256='1b60812310bd5756c62d93a9f93de8c28ea63b0df254f428cd1cf1a4d9020048')
     version('10.3', '506498796a314c549388cafb3d5c717a')
     version('10.2', 'e97c3cc72bdf661441f29069299b260a')
-    version('9.3.4', 'd0a41f54c377b2d2fab4a003b0dac762')
+    version('10.1',   sha256='3ccb4e25fe7a7ea6308dea103cac202963e6b746697366d72ec2900449a5e713')
+    version('10.0',   sha256='712f5592e27b81c5b454df96b258c14d94b6b03836831e015c65d6deeae57fd1')
+    version('9.6.12', sha256='2e8c8446ba94767bda8a26cf5a2152bf0ae68a86aaebf894132a763084579d84')
+    version('9.6.11', sha256='38250adc69a1e8613fb926c894cda1d01031391a03648894b9a6e13ff354a530')
     version('9.5.3', '3f0c388566c688c82b01a0edf1e6b7a0')
+    version('9.3.4', 'd0a41f54c377b2d2fab4a003b0dac762')
 
-    depends_on('openssl')
-    depends_on('readline')
-
+    variant('client_only', default=False,
+            description='Build and install client only.')
     variant('threadsafe', default=False, description='Build with thread safe.')
+    variant('lineedit', default='readline',
+            values=('readline', 'libedit', 'none'), multi=False,
+            description='Line editing library')
+    variant('python', default=False, description='Enable Python bindings.')
+    variant('perl', default=False, description='Enable Perl bindings.')
+    variant('tcl', default=False, description='Enable Tcl bindings.')
+    variant('gssapi', default=False,
+            description='Build with GSSAPI functionality.')
 
-    def configure_arg(self):
+    depends_on('readline', when='lineedit=readline')
+    depends_on('libedit', when='lineedit=libedit')
+    depends_on('openssl')
+    depends_on('tcl', when='+tcl')
+    depends_on('perl', when='+perl')
+    depends_on('python', when='+python')
+
+    def configure_args(self):
         config_args = ["--with-openssl"]
+
         if '+threadsafe' in self.spec:
-            config_args.append("--enable-thread-safety")
+            config_args.append('--enable-thread-safety')
         else:
-            config_args.append("--disable-thread-safety")
+            config_args.append('--disable-thread-safety')
+
+        if self.spec.variants['lineedit'].value == 'libedit':
+            config_args.append('--with-libedit-preferred')
+        elif self.spec.variants['lineedit'].value == 'none':
+            config_args.append('--without-readline')
+
+        if '+gssapi' in self.spec:
+            config_args.append('--with-gssapi')
+
+        if '+python' in self.spec:
+            config_args.append('--with-python')
+
+        if '+perl' in self.spec:
+            config_args.append('--with-perl')
+
+        if '+tcl' in self.spec:
+            config_args.append('--with-tcl')
 
         return config_args
+
+    def install(self, spec, prefix):
+        if '+client-only' in self.spec:
+            for subdir in ('bin', 'include', 'interfaces', 'pl'):
+                with working_dir(os.path.join('src', subdir)):
+                    make('install')
+        else:
+            AutotoolsPackage.install(self, spec, prefix)
+
+    def setup_environment(self, spack_env, run_env):
+        spec = self.spec
+
+        if '+perl' in spec:
+            run_env.prepend_path('PERL5LIB', self.prefix.lib)
+        if '+tcl' in spec:
+            run_env.prepend_path('TCLLIBPATH', self.prefix.lib)
+        if '+python' in spec:
+            run_env.prepend_path('PYTHONPATH', self.prefix.lib)
+
+    def setup_dependent_environment(self, spack_env, run_env, dependent_spec):
+        spec = self.spec
+
+        if '+perl' in spec:
+            spack_env.prepend_path('PERL5LIB', self.prefix.lib)
+            run_env.prepend_path('PERL5LIB', self.prefix.lib)
+        if '+tcl' in spec:
+            spack_env.prepend_path('TCLLIBPATH', self.prefix.lib)
+            run_env.prepend_path('TCLLIBPATH', self.prefix.lib)
+        if '+python' in spec:
+            spack_env.prepend_path('PYTHONPATH', self.prefix.lib)
+            run_env.prepend_path('PYTHONPATH', self.prefix.lib)