refactor include system

private_includes/base/all.ily

@@ -0,0 +1,49 @@
+#(define include_dir_not_added? (if (defined? 'include_dir_not_added?) include_dir_not_added? #t))
+#(if include_dir_not_added?
+   (let* ((common-include-dir (dirname (dirname (dirname (current-filename))))))
+      (ly:parser-append-to-include-path common-include-dir)
+      (set! include_dir_not_added? #f)))
+
+#(define noStandaloneOutput (if (defined? 'noStandaloneOutput) noStandaloneOutput #f))
+
+#(define windows? (string-prefix-ci? "windows" (utsname:sysname (uname))))
+
+#(if (defined? 'LAYOUT) #f
+  (let ((scm-load (lambda (filename) (load (
+    string-append
+      ; on windows the detection of absolute pathes is broken (cause they start with a drive letter and not with a /)
+      ; so we have to use relative pathes for load. That works in frescobaldi, but not if you call lilypond from command line,
+      ; with a relative path to the .ly file, so we use absolute pathes on posix systems, where it works.
+      (if windows?
+        ""
+        (string-append (dirname (current-filename)) file-name-separator-string))
+      "scm" file-name-separator-string filename
+    )))))
+    (scm-load "json_parser.scm")
+    (scm-load "resolve_inherits.scm")
+    (scm-load "yaml_parser.scm")))
+#(define AUTHOR_DATA (if (defined? 'AUTHOR_DATA) AUTHOR_DATA (parse-yml-file "../../lilypond-song-includes/data/authors.yml")))
+#(define SONG_DATA (if (defined? 'SONG_DATA) SONG_DATA (parse-yml-file "../../lilypond-song-includes/data/songs.yml")))
+
+\include "basic_format_and_style_settings.ily"
+\include "eps_file_from_song_dir.ily"
+\include "title_with_category_images.ily"
+\include "chord_settings.ily"
+\include "transposition.ily"
+\include "verses_with_chords.ily"
+\include "arrows_in_scores.ily"
+\include "swing_style.ily"
+\include "inline_score.ily"
+\include "custom_indentation.ily"
+\include "include_from_song.ily"
+
+% reset important variables
+LAYOUT = \layout { \generalLayout }
+HEADER = {}
+MUSIC = {}
+TEXT = \markuplist {}
+TEXT_PAGES = #f
+
+verseChords = {}
+firstVoice = {}
+global = {}