build: replace autotools with cmake

this patch removes all the autoconf/automake/libtool build
infrastructure and replaces it with cmake.

notable default behavior changes:
- man pages are not pre-built, and are not built by default, must be
  enabled with `-DBUILD_MANPAGES=ON`.

removed features:
- srpm packaging, to be reintroduced at some point.
- deb packaging, now handled externally via rafaelmartins/deb.rgm.io

more stuff must be missing, please report bugs!

1 files changed, 69 insertions, 0 deletions

diff --git a/man/CMakeLists.txt b/man/CMakeLists.txt
new file mode 100644
index 0000000..e5666cd
--- /dev/null
+++ b/man/CMakeLists.txt
@@ -0,0 +1,69 @@
+# SPDX-FileCopyrightText: 2024 Rafael G. Martins <rafael@rafaelmartins.eng.br>
+# SPDX-License-Identifier: BSD-3-Clause
+
+option(BUILD_MANPAGES "Build manpages." OFF)
+if(BUILD_MANPAGES)
+    find_program(RONN ronn REQUIRED)
+
+    set(man1
+        blogc.1
+        blogc-git-receiver.1
+        blogc-make.1
+        blogc-runserver.1
+    )
+
+    set(man5
+        blogcfile.5
+    )
+
+    set(man7
+        blogc-pagination.7
+        blogc-source.7
+        blogc-template.7
+        blogc-toctree.7
+    )
+
+    set(manpages
+        ${man1}
+        ${man5}
+        ${man7}
+    )
+
+    foreach(man ${manpages})
+        add_custom_command(
+            OUTPUT ${man}
+            COMMAND
+                ${RONN}
+                    --roff
+                    --organization "Rafael G. Martins"
+                    --manual "blogc Manual"
+                    --output-dir ${CMAKE_CURRENT_BINARY_DIR}
+                    ${CMAKE_CURRENT_SOURCE_DIR}/${man}.ronn
+            DEPENDS ${man}.ronn
+        )
+
+        add_custom_target(man-${man}
+            ALL
+            DEPENDS ${man}
+        )
+    endforeach()
+
+    foreach(man ${man1})
+        install(
+            FILES ${CMAKE_CURRENT_BINARY_DIR}/${man}
+            DESTINATION ${CMAKE_INSTALL_MANDIR}/man1
+        )
+    endforeach()
+    foreach(man ${man5})
+        install(
+            FILES ${CMAKE_CURRENT_BINARY_DIR}/${man}
+            DESTINATION ${CMAKE_INSTALL_MANDIR}/man5
+        )
+    endforeach()
+    foreach(man ${man7})
+        install(
+            FILES ${CMAKE_CURRENT_BINARY_DIR}/${man}
+            DESTINATION ${CMAKE_INSTALL_MANDIR}/man7
+        )
+    endforeach()
+endif()