don't build html docs unless we have to

.github/workflows/build-linux.yml

@@ -29,6 +29,9 @@ on:
       docs:
         type: boolean
         default: false
+      html:
+        type: boolean
+        default: true
       stonesense:
         type: boolean
         default: false
@@ -118,6 +121,7 @@ jobs:
             -DBUILD_SIZECHECK:BOOL=${{ inputs.extras }} \
             -DBUILD_SKELETON:BOOL=${{ inputs.extras }} \
             -DBUILD_DOCS:BOOL=${{ inputs.docs }} \
+            -DBUILD_DOCS_NO_HTML:BOOL=${{ !inputs.html }} \
             -DBUILD_TESTS:BOOL=${{ inputs.tests }} \
             -DBUILD_XMLDUMP:BOOL=${{ inputs.xml-dump-type-sizes }} \
             -DINSTALL_DATA_FILES:BOOL=${{ inputs.common-files }} \

.github/workflows/build-windows.yml

@@ -29,6 +29,9 @@ on:
       docs:
         type: boolean
         default: false
+      html:
+        type: boolean
+        default: true
       stonesense:
         type: boolean
         default: false
@@ -91,7 +94,7 @@ jobs:
             win-msvc
       - name: Cross-compile
         env:
-          CMAKE_EXTRA_ARGS: '-DBUILD_LIBRARY=${{ inputs.platform-files }} -DBUILD_STONESENSE:BOOL=${{ inputs.stonesense }} -DBUILD_DOCS:BOOL=${{ inputs.docs }} -DINSTALL_DATA_FILES:BOOL=${{ inputs.common-files }} -DINSTALL_SCRIPTS:BOOL=${{ inputs.common-files }} -DBUILD_DFLAUNCH:BOOL=${{ inputs.launchdf }} -DBUILD_TESTS:BOOL=${{ inputs.tests }} -DBUILD_XMLDUMP:BOOL=${{ inputs.xml-dump-type-sizes }}'
+          CMAKE_EXTRA_ARGS: '-DBUILD_LIBRARY=${{ inputs.platform-files }} -DBUILD_STONESENSE:BOOL=${{ inputs.stonesense }} -DBUILD_DOCS:BOOL=${{ inputs.docs }} -DBUILD_DOCS_NO_HTML:BOOL=${{ !inputs.html }} -DINSTALL_DATA_FILES:BOOL=${{ inputs.common-files }} -DINSTALL_SCRIPTS:BOOL=${{ inputs.common-files }} -DBUILD_DFLAUNCH:BOOL=${{ inputs.launchdf }} -DBUILD_TESTS:BOOL=${{ inputs.tests }} -DBUILD_XMLDUMP:BOOL=${{ inputs.xml-dump-type-sizes }}'
         run: |
           cd build
           bash -x build-win64-from-linux.sh

.github/workflows/test.yml

@@ -21,6 +21,7 @@ jobs:
       artifact-name: test-msvc
       cache-id: test
       docs: true
+      html: false
       tests: true
 
   build-linux:
@@ -35,6 +36,7 @@ jobs:
       stonesense: ${{ matrix.plugins == 'all' }}
       extras: ${{ matrix.plugins == 'all' }}
       docs: true
+      html: false
       tests: true
       gcc-ver: ${{ matrix.gcc }}
     secrets: inherit

CMakeLists.txt

@@ -30,6 +30,7 @@ else(CMAKE_CONFIGURATION_TYPES)
 endif(CMAKE_CONFIGURATION_TYPES)
 
 option(BUILD_DOCS "Choose whether to build the documentation (requires python and Sphinx)." OFF)
+option(BUILD_DOCS_NO_HTML "Don't build the HTML docs, only the in-game docs." OFF)
 option(REMOVE_SYMBOLS_FROM_DF_STUBS "Remove debug symbols from DF stubs. (Reduces libdfhack size to about half but removes a few useful symbols)" ON)
 
 macro(CHECK_GCC compiler_path)
@@ -468,7 +469,14 @@ if(BUILD_DOCS)
         "${CMAKE_CURRENT_SOURCE_DIR}/conf.py"
     )
 
+    if(BUILD_DOCS_NO_HTML)
+        set(SPHINX_OUTPUT "${CMAKE_CURRENT_SOURCE_DIR}/docs/text/index.txt")
+        set(SPHINX_BUILD_TARGETS text)
+    else()
         set(SPHINX_OUTPUT "${CMAKE_CURRENT_SOURCE_DIR}/docs/html/.buildinfo")
+        set(SPHINX_BUILD_TARGETS html text)
+    endif()
+
     set_property(
         DIRECTORY PROPERTY ADDITIONAL_CLEAN_FILES TRUE
         "${CMAKE_CURRENT_SOURCE_DIR}/docs/changelogs"
@@ -485,9 +493,10 @@ if(BUILD_DOCS)
         "${CMAKE_BINARY_DIR}/docs/text"
         "${CMAKE_BINARY_DIR}/docs/xml"
     )
+
     add_custom_command(OUTPUT ${SPHINX_OUTPUT}
         COMMAND "${Python3_EXECUTABLE}" "${CMAKE_CURRENT_SOURCE_DIR}/docs/build.py"
-            html text --sphinx="${SPHINX_EXECUTABLE}" -- -q -W
+        ${SPHINX_BUILD_TARGETS} --sphinx="${SPHINX_EXECUTABLE}" -- -q -W
         DEPENDS ${SPHINX_DEPS}
         COMMENT "Building documentation with Sphinx"
     )
@@ -500,10 +509,12 @@ if(BUILD_DOCS)
     add_custom_command(TARGET dfhack_docs POST_BUILD
         COMMAND ${CMAKE_COMMAND} -E touch ${SPHINX_OUTPUT})
 
+    if(NOT BUILD_DOCS_NO_HTML)
         install(DIRECTORY ${dfhack_SOURCE_DIR}/docs/html/
             DESTINATION ${DFHACK_USERDOC_DESTINATION}/docs
             FILES_MATCHING PATTERN "*"
                            PATTERN html/_sources EXCLUDE)
+    endif()
     install(DIRECTORY ${dfhack_SOURCE_DIR}/docs/text/
         DESTINATION ${DFHACK_USERDOC_DESTINATION}/docs)
     install(FILES docs/changelogs/news.rst docs/changelogs/news-dev.rst DESTINATION ${DFHACK_USERDOC_DESTINATION})