cmake: add and use install_binary_component

Add a separate component for each binary for fine-grained installation options.

Also install the man pages for only for the targets enabled.

cmake/module/InstallBinaryComponent.cmake

@@ -0,0 +1,26 @@
+# Copyright (c) 2025-present The Bitcoin Core developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or https://opensource.org/license/mit/.
+
+include_guard(GLOBAL)
+include(GNUInstallDirs)
+
+function(install_binary_component component)
+  cmake_parse_arguments(PARSE_ARGV 1
+    IC                # prefix
+    "HAS_MANPAGE"     # options
+    ""                # one_value_keywords
+    ""                # multi_value_keywords
+  )
+  set(target_name ${component})
+  install(TARGETS ${target_name}
+    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
+    COMPONENT ${component}
+  )
+  if(INSTALL_MAN AND IC_HAS_MANPAGE)
+    install(FILES ${PROJECT_SOURCE_DIR}/doc/man/${target_name}.1
+      DESTINATION ${CMAKE_INSTALL_MANDIR}/man1
+      COMPONENT ${component}
+    )
+  endif()
+endfunction()

src/CMakeLists.txt

@@ -2,7 +2,6 @@
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or https://opensource.org/license/mit/.
 
-include(GNUInstallDirs)
 include(AddWindowsResources)
 
 configure_file(${PROJECT_SOURCE_DIR}/cmake/bitcoin-build-config.h.in bitcoin-build-config.h USE_SOURCE_PERMISSIONS @ONLY)
@@ -170,8 +169,8 @@ target_link_libraries(bitcoin_common
     $<$<PLATFORM_ID:Windows>:ws2_32>
 )
 
+include(InstallBinaryComponent)
 
-set(installable_targets)
 if(ENABLE_WALLET)
   add_subdirectory(wallet)
 
@@ -189,7 +188,7 @@ if(ENABLE_WALLET)
       bitcoin_util
       Boost::headers
     )
-    list(APPEND installable_targets bitcoin-wallet)
+    install_binary_component(bitcoin-wallet HAS_MANPAGE)
   endif()
 endif()
 
@@ -318,7 +317,7 @@ if(BUILD_DAEMON)
     bitcoin_node
     $<TARGET_NAME_IF_EXISTS:bitcoin_wallet>
   )
-  list(APPEND installable_targets bitcoind)
+  install_binary_component(bitcoind HAS_MANPAGE)
 endif()
 if(WITH_MULTIPROCESS AND BUILD_DAEMON)
   add_executable(bitcoin-node
@@ -331,7 +330,7 @@ if(WITH_MULTIPROCESS AND BUILD_DAEMON)
     bitcoin_ipc
     $<TARGET_NAME_IF_EXISTS:bitcoin_wallet>
   )
-  list(APPEND installable_targets bitcoin-node)
+  install_binary_component(bitcoin-node)
 endif()
 
 if(WITH_MULTIPROCESS AND BUILD_TESTS)
@@ -374,7 +373,7 @@ if(BUILD_CLI)
     libevent::core
     libevent::extra
   )
-  list(APPEND installable_targets bitcoin-cli)
+  install_binary_component(bitcoin-cli HAS_MANPAGE)
 endif()
 
 
@@ -387,7 +386,7 @@ if(BUILD_TX)
     bitcoin_util
     univalue
   )
-  list(APPEND installable_targets bitcoin-tx)
+  install_binary_component(bitcoin-tx HAS_MANPAGE)
 endif()
 
 
@@ -399,7 +398,7 @@ if(BUILD_UTIL)
     bitcoin_common
     bitcoin_util
   )
-  list(APPEND installable_targets bitcoin-util)
+  install_binary_component(bitcoin-util HAS_MANPAGE)
 endif()
 
 
@@ -445,17 +444,3 @@ endif()
 if(BUILD_FUZZ_BINARY)
   add_subdirectory(test/fuzz)
 endif()
-
-
-install(TARGETS ${installable_targets}
-  RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
-)
-unset(installable_targets)
-
-if(INSTALL_MAN)
-  # TODO: these stubs are no longer needed. man pages should be generated at install time.
-  install(DIRECTORY ../doc/man/
-    DESTINATION ${CMAKE_INSTALL_MANDIR}/man1
-    FILES_MATCHING PATTERN *.1
-  )
-endif()

src/bench/CMakeLists.txt

@@ -81,6 +81,4 @@ add_test(NAME bench_sanity_check_high_priority
   COMMAND bench_bitcoin -sanity-check -priority-level=high
 )
 
-install(TARGETS bench_bitcoin
+install_binary_component(bench_bitcoin)
-  RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
-)

src/kernel/CMakeLists.txt

@@ -2,6 +2,8 @@
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or https://opensource.org/license/mit/.
 
+include(GNUInstallDirs)
+
 # TODO: libbitcoinkernel is a work in progress consensus engine
 #       library, as more and more modules are decoupled from the
 #       consensus engine, this list will shrink to only those
@@ -130,7 +132,6 @@ endif()
 configure_file(${PROJECT_SOURCE_DIR}/libbitcoinkernel.pc.in ${PROJECT_BINARY_DIR}/libbitcoinkernel.pc @ONLY)
 install(FILES ${PROJECT_BINARY_DIR}/libbitcoinkernel.pc DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig" COMPONENT Kernel)
 
-include(GNUInstallDirs)
 install(TARGETS bitcoinkernel
   RUNTIME
     DESTINATION ${CMAKE_INSTALL_BINDIR}

src/qt/CMakeLists.txt

@@ -236,10 +236,7 @@ target_link_libraries(bitcoin-qt
 )
 
 import_plugins(bitcoin-qt)
-install(TARGETS bitcoin-qt
+install_binary_component(bitcoin-qt HAS_MANPAGE)
-  RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
-  COMPONENT bitcoin-qt
-)
 if(WIN32)
   set_target_properties(bitcoin-qt PROPERTIES WIN32_EXECUTABLE TRUE)
 endif()
@@ -256,10 +253,7 @@ if(WITH_MULTIPROCESS)
     bitcoin_ipc
   )
   import_plugins(bitcoin-gui)
-  install(TARGETS bitcoin-gui
+  install_binary_component(bitcoin-gui)
-    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
-    COMPONENT bitcoin-gui
-  )
   if(WIN32)
     set_target_properties(bitcoin-gui PROPERTIES WIN32_EXECUTABLE TRUE)
   endif()

src/qt/test/CMakeLists.txt

@@ -45,6 +45,4 @@ if(WIN32 AND VCPKG_TARGET_TRIPLET)
   )
 endif()
 
-install(TARGETS test_bitcoin-qt
+install_binary_component(test_bitcoin-qt)
-  RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
-)

src/test/CMakeLists.txt

@@ -213,6 +213,4 @@ endfunction()
 
 add_all_test_targets()
 
-install(TARGETS test_bitcoin
+install_binary_component(test_bitcoin)
-  RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
-)