1 files changed, 105 insertions, 0 deletions
diff --git a/doc/CMakeLists.txt b/doc/CMakeLists.txt
index e69de29b..8ca83783 100644
--- a/doc/CMakeLists.txt
+++ b/doc/CMakeLists.txt
@@ -0,0 +1,105 @@
+# The following will be generated or updated when the 'doc' target is built:
+# • user guide and man pages: if BUILD_DOCS is set
+# • HTML versions of the above: if BUILD_DOCS and BUILD_WEB_DOCS are set
+# • Doxygen / reference documentation: if USE_DOXYGEN is set
+
+########################################################################
+
+if (USE_DOXYGEN)
+  find_package(Doxygen)
+  if(NOT DOXYGEN_FOUND)
+    message(FATAL_ERROR "Could not find doxygen. Reference documentation cannot be built.")
+  endif()
+
+  configure_file(Doxyfile.in Doxyfile @ONLY)
+
+  # see INPUT/FILE_PATTERNS in Doxyfile.in
+  file(GLOB doxygen_input_files ${CMAKE_SOURCE_DIR}/src/*.h)
+
+  add_custom_command(OUTPUT html/index.html
+    COMMAND ${DOXYGEN_EXECUTABLE} Doxyfile
+    DEPENDS Doxyfile ${doxygen_input_files}
+    COMMENT "Building doxygen documentation")
+  add_custom_target(doc.doxygen DEPENDS html/index.html)
+else()
+  add_custom_target(doc.doxygen)
+endif()
+
+########################################################################
+
+if(NOT BUILD_DOCS)
+  add_custom_target(doc DEPENDS doc.doxygen)
+  return()
+endif()
+
+set(info_files ledger.texi ledger3.texi)
+
+find_program(MAKEINFO makeinfo)
+find_program(TEXI2PDF texi2pdf)
+find_program(MAN2HTML man2html)
+
+########################################################################
+
+foreach(file ${info_files})
+  get_filename_component(file_base ${file} NAME_WE)
+  if(BUILD_WEB_DOCS)
+    if(NOT MAKEINFO)
+      message(FATAL_ERROR "Could not find makeinfo. HTML version of documentation cannot be built.")
+    endif()
+
+    add_custom_command(OUTPUT ${file_base}.html
+      COMMAND makeinfo --force --html --no-split -o ${file_base}.html ${CMAKE_CURRENT_SOURCE_DIR}/${file}
+      DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/${file}
+      VERBATIM)
+    list(APPEND ledger_doc_files ${file_base}.html)
+  endif(BUILD_WEB_DOCS)
+
+  if(NOT TEXI2PDF)
+    mesage(WARNING "Could not find texi2pdf. PDF version of documentation will not be built.")
+  else()
+    add_custom_command(OUTPUT ${file_base}.pdf
+      COMMAND texi2pdf -b -q -o ${file_base}.pdf ${CMAKE_CURRENT_SOURCE_DIR}/${file}
+      DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/${file}
+      VERBATIM)
+    list(APPEND ledger_doc_files ${file_base}.pdf)
+  endif()
+endforeach()
+
+########################################################################
+
+if(BUILD_WEB_DOCS)
+  include(FindUnixCommands)
+  if(NOT BASH)
+    message(FATAL_ERROR "Could not find bash. Unable to build documentation.")
+  endif()
+  if(NOT MAN2HTML)
+    message(FATAL_ERROR "Could not find man2html. HTML version of man page cannot be built.")
+  endif()
+
+  add_custom_command(OUTPUT ledger.1.html
+    COMMAND ${BASH} -c "man2html ${CMAKE_CURRENT_SOURCE_DIR}/ledger.1 | tail -n+3 > ledger.1.html"
+    DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/ledger.1
+    VERBATIM)
+  list(APPEND ledger_doc_files ledger.1.html)
+endif(BUILD_WEB_DOCS)
+
+########################################################################
+
+add_custom_target(doc DEPENDS ${ledger_doc_files} doc.doxygen)
+
+########################################################################
+
+include(GNUInstallDirs)
+
+if(CMAKE_INSTALL_MANDIR)
+  install(FILES ${CMAKE_CURRENT_SOURCE_DIR}/ledger.1
+    DESTINATION ${CMAKE_INSTALL_MANDIR}/man1 COMPONENT doc)
+endif(CMAKE_INSTALL_MANDIR)
+
+if(CMAKE_INSTALL_DOCDIR)
+  foreach(file ${info_files})
+    get_filename_component(file_base ${file} NAME_WE)
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${file_base}.pdf
+      DESTINATION ${CMAKE_INSTALL_DOCDIR} COMPONENT doc OPTIONAL)
+  endforeach()
+endif(CMAKE_INSTALL_DOCDIR)