Update documentation for lang/go module

OK sthen@

1 files changed, 117 insertions, 2 deletions

diff --git a/share/man/man5/port-modules.5 b/share/man/man5/port-modules.5
index dc470468658..2e59d78f4b5 100644
--- a/share/man/man5/port-modules.5
+++ b/share/man/man5/port-modules.5
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: port-modules.5,v 1.188 2015/04/02 15:47:40 jmc Exp $
+.\"	$OpenBSD: port-modules.5,v 1.189 2015/06/08 09:23:01 czarkoff Exp $
 .\"
 .\" Copyright (c) 2008 Marc Espie
 .\"
@@ -24,7 +24,7 @@
 .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 .\"
-.Dd $Mdocdate: April 2 2015 $
+.Dd $Mdocdate: June 8 2015 $
 .Dt PORT-MODULES 5
 .Os
 .Sh NAME
@@ -734,6 +734,121 @@ command can be specified with
 .Ev MODGHC_SETUP_CONF_ARGS
 and
 .Ev MODGHC_SETUP_CONF_ENV .
+.It lang/go
+Adds Go toolchain support.
+Requires
+.Ev ALL_TARGET
+to be set to canonical Go import path of port.
+(Module sets it automatically for ports that use
+.Ev GH_ACCOUNT
+and
+.Ev GH_PROJECT
+macros.)
+.Pp
+During execution of
+.Ar post-patch
+target module moves source code from
+.Pa ${MODGO_SUBDIR}
+to
+.Pa ${WRKSRC} ,
+subdirectory of
+.Pa ${MODGO_WORKSPACE}
+- specially-crafted Go workspace located at
+.Pa ${WRKDIR}/go .
+During
+.Ar do-build
+module calls
+.Dq go install
+with
+.Ev GOPATH
+set to
+.Pa ${MODGO_WORKSPACE} ,
+runs its output through sed to prevent writes outside
+.Ev WRKDIR
+sandbox and sends output to
+.Xr sh 1 .
+During
+.Ar do-install
+it copies executables from
+.Pa ${MODGO_WORKSPACE}/bin
+to
+.Pa ${PREFIX}/bin ,
+and/or directories
+.Pa ${MODGO_WORKSPACE}/pkg
+and
+.Pa ${MODGO_WORKSPACE}/src
+to
+.Pa ${PREFIX}/go ,
+depending on
+.Ev MODGO_TYPE
+contents.
+.Pp
+Sets
+.Ev BUILD_DEPENDS ,
+.Ev RUN_DEPENDS ,
+.Ev ALL_TARGET ,
+.Ev TEST_TARGET ,
+.Ev ONLY_FOR_ARCHS ,
+.Ev SEPARATE_BUILD ,
+and
+.Ev WRKSRC .
+.Pp
+Defines:
+.Bl -tag -width MODGO_WORKSPACE
+.It Ev MODGO_TYPE
+Type of port.
+May be any combination of:
+.Bl -tag -width lib
+.It bin
+ordinary binary, which should be installed to
+.Pa ${PREFIX}/bin ,
+.It lib
+library, which should come with source code.
+.El
+.Pp
+Defaults to
+.Ar bin .
+.It Ev MODGO_WORKSPACE
+Path to Go workspace set up for port build process.
+Defaults to
+.Pa ${WRKDIR}/go .
+See Go documentation for details.
+.It Ev MODGO_SUBDIR
+Path to Go source code within port's sources tarball.
+Defaults to
+.Pa ${WRKDIST} .
+.It Ev MODGO_SETUP_WORKSPACE
+Commands setting up Go workspace for building ports.
+By default, happens during execution of
+.Ar post-patch
+target.
+.It Ev MODGO_BUILDDEP
+Controls whether contents of
+.Ev MODGO_BUILD_DEPENDS
+are appended to port's
+.Ev BUILD_DEPENDS .
+Defaults to
+.Ar Yes .
+.El
+.Pp
+Additionally defines
+.Ev MODGO_PACKAGES ,
+.Ev MODGO_SOURCES
+and
+.Ev MODGO_TOOLS
+(paths for installed Go packages, sources and tools respectively),
+.Ev MODGO_CMD
+and
+.Ev MODGO_FLAGS
+(source code build command and flags passed as its arguments),
+.Ev MODGO_BUILD_CMD
+and
+.Ev MODGO_TEST_CMD
+(commands for building and testing go packages; normally called with canonical
+Go package names as arguments),
+.Ev MODGO_{BUILD,INSTALL,TEST}_TARGET
+and
+.Ev MODGO_{BUILD,RUN}_DEPENDS .
 .It lang/lua
 Sets
 .Ev MODLUA_BIN ,