py-cog: update to 3.0.0, add py37

- pin to 2.5.1 for py27 and py34
- enable tests
- install files in post-destroot

python/py-cog/Portfile

@@ -5,7 +5,7 @@ PortGroup           python 1.0
 
 name                py-cog
 python.rootname     cogapp
-version             2.5.1
+version             3.0.0
 revision            0
 platforms           darwin
 supported_archs     noarch
@@ -22,15 +22,42 @@ master_sites        pypi:c/${python.rootname}
 
 distname            ${python.rootname}-${version}
 
-checksums           rmd160  253834c2612eca68ac38d5618716768360e830dd \
+checksums           rmd160  705f49591837155f5f29d42e7780cbb09f836509 \
+                    sha256  5e5da2bcfc4e4750c66cecb80ea4eaed1ef4fddd3787c989d4f5bfffb1152d6a \
+                    size    24638
+
+python.versions     27 34 35 36 37
+
+if {${name} ne ${subport}} {
+    if {${python.version} in "27 34"} {
+        version     2.5.1
+        revision    0
+        distname    ${python.rootname}-${version}
+        checksums   rmd160  253834c2612eca68ac38d5618716768360e830dd \
                     sha256  f8cf2288fb5a2087eb4a00d8b347ddc86e9058d4ab26b8c868433eb401adfe1c \
                     size    22226
+    }
 
-python.versions     27 34 35 36
+    depends_lib-append \
+                    port:py${python.version}-setuptools
+
+    depends_lib-append \
+                    port:py${python.version}-pytest
+    test.run        yes
+    test.cmd        py.test-${python.branch}
+    test.target
+    test.env        PYTHONPATH=${worksrcpath}/build/lib
 
-if {${name} ne ${subport}} {
     post-destroot {
-        file delete ${destroot}${python.prefix}/bin/test_cog.py
+        set docdir ${prefix}/share/doc/${subport}
+        xinstall -d ${destroot}${docdir}
+        if {${python.version} in "27 34"} {
+            xinstall -m 0644 -W ${worksrcpath} README.txt LICENSE.txt \
+            ${destroot}${docdir}
+        } else {
+            xinstall -m 0644 -W ${worksrcpath} README.rst LICENSE.txt \
+            ${destroot}${docdir}
+        }
     }
 
     livecheck.type      none