serval-dna/m4/ax_prog_swift_build_works.m4
Andrew Bettison 3ffa4b10af Add Swift keyring client API with tests
Add a swift-client-api subdirectory containing a Swift source package
and a Makefile.in that compiles it into the "ServalClient" Swift module
using the Swift package manager.  The Swift API contains the following
classes:

- ServalKeyring provides the operations: add, remove, set, list
- AbstractId and its specialisation SubscriberId, already in near-final
  form, are data types for SID and the like
- ServalRestfulClient (internal) uses an HTTP client to access the
  Serval DNA RESTful interface

Improve the REST /keyring/set operation to only alter the DID or Name if
the corresponding query parameter is supplied.  Modify the internal
keyring_set_did() function to only assign the DID or Name if the
corresponding parameter is not a null pointer.

The configure script ensures that the Swift build target version is
10.10 or later when compiling for Mac OS-X, so that the package manager
will succeed.

Add autoconf macros for the Swift package manager.
2018-03-06 15:29:17 +10:30

97 lines
3.9 KiB
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# Serval Project Swift language support
#
# SYNOPSIS
#
# AX_PROG_SWIFT_BUILD_WORKS
#
# DESCRIPTION
#
# AX_PROG_SWIFT_BUILD_WORKS tests whether the Swift package manager "build"
# command works.
#
# Requires the SWIFT shell variable to contain the path of the Swift package
# manager executable (not the Swift compiler!), either relative to $PATH or
# absolute; this will usually be just "swift". Expands the SWIFTCFLAGS shell
# variable on the build command-line with -Xswiftc preceding each word.
#
# Sets the SWIFT_BUILD variable to the command to invoke the build-package
# command, usually "$SWIFT build".
#
# To force a specific swift executable, either:
#
# - in configure.ac, set SWIFT=yourswift before calling
# AX_PROG_SWIFT_PACKAGE_MANAGER, or
#
# - before invoking ./configure, export SWIFT=yourswift
#
# LICENSE
#
# Copyright (C) 2016 Flinders University
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation; either version 2 of the License, or (at your
# option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
# Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.
#
# As a special exception, the respective Autoconf Macro's copyright owner
# gives unlimited permission to copy, distribute and modify the configure
# scripts that are the output of Autoconf when processing the Macro. You
# need not follow the terms of the GNU General Public License when using
# or distributing such scripts, even though portions of the text of the
# Macro appear in them. The GNU General Public License (GPL) does govern
# all other use of the material that constitutes the Autoconf Macro.
#
# This special exception to the GPL applies to versions of the Autoconf
# Macro released by the Autoconf Archive. When you make and distribute a
# modified version of the Autoconf Macro, you may extend this special
# exception to the GPL to apply to your modified version as well.
AU_ALIAS([AC_PROG_SWIFT_BUILD_WORKS], [AX_PROG_SWIFT_BUILD_WORKS])
AC_DEFUN([AX_PROG_SWIFT_BUILD_WORKS],[
AC_REQUIRE([AX_TMPDIR_SWIFT])
SWIFT_BUILD="$SWIFT build"
AC_CACHE_CHECK([if $SWIFT_BUILD works], ac_cv_prog_swift_build_works, [
AS_MKDIR_P(["$ax_tmpdir_swift/swift_package/Sources"])
cat << EOF > "$ax_tmpdir_swift/swift_package/Package.swift"
/* [#]line __oline__ "configure" */
import PackageDescription
let package = Package(name: "test")
EOF
cat << EOF > "$ax_tmpdir_swift/swift_package/Sources/test.swift"
/* [#]line __oline__ "configure" */
public func test() {
test1()
}
fileprivate func test1() {}
EOF
ac_cv_prog_swift_build_works=no
SWIFTBUILDFLAGS=
for flag in $SWIFTCFLAGS; do
AS_VAR_APPEND([SWIFTBUILDFLAGS], [" -Xswiftc $flag"])
done
AS_IF([AC_TRY_COMMAND(cd "$ax_tmpdir_swift/swift_package" && $SWIFT_BUILD $SWIFTBUILDFLAGS) >/dev/null 2>&1], [
AS_IF([test -e "$ax_tmpdir_swift/swift_package/.build/debug/test.swiftmodule"], [
ac_cv_prog_swift_build_works=yes
])
])
AS_IF([test "x$ac_cv_prog_swift_build_works" != xyes], [
echo "Package.swift:" >&AS_MESSAGE_LOG_FD
cat "$ax_tmpdir_swift/swift_package/Package.swift" >&AS_MESSAGE_LOG_FD
echo "failed program was:" >&AS_MESSAGE_LOG_FD
cat "$ax_tmpdir_swift/swift_package/Sources/test.swift" >&AS_MESSAGE_LOG_FD
])
])
AS_IF([test "x$ac_cv_prog_swift_build_works" != xyes], [
AS_UNSET([SWIFT_BUILD])
])
AC_PROVIDE([$0])dnl
])