-*- mode: org -*-
#+TITLE:       sisudoc spine (doc_reform) compile time info
#+DESCRIPTION: documents - structuring, publishing in multiple formats & search
#+FILETAGS:    :spine:compile:
#+AUTHOR:      Ralph Amissah
#+EMAIL:       [[mailto:ralph.amissah@gmail.com][ralph.amissah@gmail.com]]
#+COPYRIGHT:   Copyright (C) 2015 - 2024 Ralph Amissah
#+LANGUAGE:    en
#+STARTUP:     content hideblocks hidestars noindent entitiespretty
#+PROPERTY:    header-args  :exports code
#+PROPERTY:    header-args+ :noweb yes
#+PROPERTY:    header-args+ :results no
#+PROPERTY:    header-args+ :cache no
#+PROPERTY:    header-args+ :padline no
#+PROPERTY:    header-args+ :mkdirp yes
#+OPTIONS:     H:3 num:nil toc:t \n:t ::t |:t ^:nil -:t f:t *:t

- [[./doc-reform.org][doc-reform.org]]  [[./][org/]]

* compilation info

- [[./spine_build_scaffold.org][make/build]]
- [[./doc-reform.org][doc-reform.org]]  [[./][org/]]

e.g. do on linux bsd osx not windows:
version(Windows) {} else { ... }

** _module template_ :module:compile_time_info:

#+HEADER: :tangle "../src/sisudoc/conf/compile_time_info.d"
#+HEADER: :noweb yes
#+BEGIN_SRC d
<<doc_header_including_copyright_and_license>>
/++
  compile_time_info
+/
module sisudoc.conf.compile_time_info;
@safe:
template CompileTimeInfo() {
  <<spine_compile_time_info_0>>
  <<spine_compile_time_info_1>>
}
#+END_SRC

*** document header including copyright & license

#+NAME: doc_header_including_copyright_and_license
#+HEADER: :noweb yes
#+BEGIN_SRC emacs-lisp
<<./sisudoc_spine_version_info_and_doc_header_including_copyright_and_license.org:spine_doc_header_including_copyright_and_license()>>
#+END_SRC

** complile time os
OS type shows during compilation

*** set os flags

#+NAME: spine_compile_time_info_0
#+BEGIN_SRC d
version(Windows) {
  pragma(msg, "[ Windows compilation ]");
  enum os = "Windows";
} else version(OSX) {
  pragma(msg, "[ Mac OS X POSIX System compilation ]");
  enum os = "OSX";
} else version(linux) {
  pragma(msg, "[ Linux POSIX System compilation ]");
  enum os = "Linux";
} else version(FreeBSD) {
  pragma(msg, "[ FreeBSD POSIX System compilation ]");
  enum os = "FreeBSD";
} else version(OpenBSD) {
  pragma(msg, "[ OpenBSD POSIX System compilation ]");
  enum os = "OpenBSD";
} else version(NetBSD) {
  pragma(msg, "[ NetBSD POSIX System compilation ]");
  enum os = "NetBSD";
} else version(DragonFlyBSD) {
  pragma(msg, "[ DragonFlyBSD POSIX System compilation ]");
  enum os = "DragonFlyBSD";
} else version(POSIX) {
  pragma(msg, "[ POSIX System compilation ]");
  enum os = "POSIX";
} else {
  static assert(0, "OS not listed");
}
#+END_SRC

** complile time static if os
OS type compiled in and shows during program run

*** report os flag (set) (not used here)

#+BEGIN_SRC d
static if(sysWindows) {
  writeln("Windows");
} else static if(sysOSX) {
  writeln("OSX");
} else static if(sysLinux) {
  writeln("Linux");
} else static if(sysFreeBSD) {
  writeln("FreeBSD");
} else static if(sysOpenBSD) {
  writeln("OpenBSD");
} else static if(sysNetBSD) {
  writeln("NetBSD");
} else static if(sysDragonFlyBSD) {
  writeln("DragonFlyBSD");
} else {
  writeln("other");
}
#+END_SRC

** 64 bit compilation?

#+NAME: spine_compile_time_info_1
#+BEGIN_SRC d
version(D_LP64) {
  enum bits = "64 bit";
} else {
  enum bits = "32 bit";
}
#+END_SRC

* __END__