cmake: rename testbins target to tt, restore internal option

To make it easy to type. The internal option is used in CI.

Follow-up to aae361242f #20708

Closes #20768

RELEASE-NOTES

@@ -63,7 +63,7 @@ This release includes the following bugfixes:
  o cmake: normalize uppercase hex winver (for display) [191]
  o cmake: omit `curl.rc` from curltool lib [209]
  o cmake: reference OpenSSL and ZLIB imported targets only when enabled [41]
- o cmake: replace internal option with a new `testbins` target [220]
+ o cmake: replace internal option with a new `tt` (test tools) target [220]
  o cmake: silence potential unused var warnings in C++ test snippet [201]
  o cmake: silence silly Apple clang warnings in C89 mode, test in CI [14]
  o cmake: silence useless compiler warnings triggered by the FASTBuild generator [43]

docs/INSTALL-CMAKE.md

@@ -552,12 +552,12 @@ Note: These variables are internal and subject to change.
 
 ## Useful build targets
 
-- `testbins`:               Build test binaries (servers, tools).
-                            Individual targets: `curlinfo`, `libtests`, `servers`, `tunits`, `units`
 - `testdeps`:               Build test dependencies (test binaries, test certificates).
                             Test certificates: `build-certs` (clean with `clean-certs`)
 - `tests`:                  Run tests (`runtests.pl`). Customize via the `TFLAGS` environment variable, e.g. `TFLAGS=1621`.
                             Other flavors: `test-am`, `test-ci`, `test-event`, `test-full`, `test-nonflaky`, `test-quiet`, `test-torture`
+- `tt`:                     Build test binaries (servers, tools).
+                            Individual targets: `curlinfo`, `libtests`, `servers`, `tunits`, `units`
 - `curl-pytest`:            Run tests (pytest).
                             Other flavor: `curl-test-ci`
 - `curl-examples`:          Build examples

tests/CMakeLists.txt

@@ -29,21 +29,21 @@ mark_as_advanced(TEST_NGHTTPX)
 # Consumed variables: TEST_NGHTTPX
 configure_file("config.in" "${CMAKE_CURRENT_BINARY_DIR}/config" @ONLY)
 
-add_custom_target(testbins)
+add_custom_target(tt)
 if(BUILD_CURL_EXE)
-  add_dependencies(testbins "curlinfo")
+  add_dependencies(tt "curlinfo")
 endif()
 if(CURL_BUILD_EVERYTHING)
-  set_target_properties(testbins PROPERTIES EXCLUDE_FROM_ALL FALSE)
+  set_target_properties(tt PROPERTIES EXCLUDE_FROM_ALL FALSE)
 endif()
 
 if(CURL_CLANG_TIDY)
   add_custom_target(tests-clang-tidy)
-  add_dependencies(testbins tests-clang-tidy)
+  add_dependencies(tt tests-clang-tidy)
 endif()
 
 add_custom_target(testdeps)
-add_dependencies(testdeps "testbins")
+add_dependencies(testdeps "tt")
 
 add_subdirectory(http)
 add_subdirectory(server)

tests/certs/CMakeLists.txt

@@ -31,7 +31,11 @@ add_custom_command(OUTPUT ${GENERATEDCERTS}
   VERBATIM
 )
 add_custom_target(build-certs DEPENDS ${GENERATEDCERTS})
-add_dependencies(testdeps build-certs)
+
+option(_CURL_SKIP_BUILD_CERTS "Skip building certs with testdeps" OFF)  # Internal option to increase perf for build tests
+if(NOT _CURL_SKIP_BUILD_CERTS)
+  add_dependencies(testdeps build-certs)
+endif()
 
 add_custom_target(clean-certs
   COMMAND ${CMAKE_COMMAND} -E remove ${GENERATEDCERTS}

tests/libtest/CMakeLists.txt

@@ -52,7 +52,7 @@ add_custom_command(OUTPUT "${BUNDLE}.c"
   VERBATIM)
 
 add_executable(${BUNDLE} EXCLUDE_FROM_ALL "${BUNDLE}.c")
-add_dependencies(testbins ${BUNDLE})
+add_dependencies(tt ${BUNDLE})
 target_link_libraries(${BUNDLE} ${LIB_SELECTED} ${CURL_LIBS})
 target_include_directories(${BUNDLE} PRIVATE
   "${PROJECT_BINARY_DIR}/lib"            # for "curl_config.h"

tests/server/CMakeLists.txt

@@ -39,7 +39,7 @@ add_custom_command(OUTPUT "${BUNDLE}.c"
   VERBATIM)
 
 add_executable(${BUNDLE} EXCLUDE_FROM_ALL "${BUNDLE}.c")
-add_dependencies(testbins ${BUNDLE})
+add_dependencies(tt ${BUNDLE})
 target_link_libraries(${BUNDLE} ${CURL_NETWORK_AND_TIME_LIBS})
 target_include_directories(${BUNDLE} PRIVATE
   "${PROJECT_BINARY_DIR}/lib"            # for "curl_config.h"

tests/tunit/CMakeLists.txt

@@ -39,7 +39,7 @@ add_custom_command(OUTPUT "${BUNDLE}.c"
   VERBATIM)
 
 add_executable(${BUNDLE} EXCLUDE_FROM_ALL "${BUNDLE}.c")
-add_dependencies(testbins ${BUNDLE})
+add_dependencies(tt ${BUNDLE})
 target_link_libraries(${BUNDLE} curltool ${LIB_SELECTED})
 target_include_directories(${BUNDLE} PRIVATE
   "${PROJECT_BINARY_DIR}/lib"            # for "curl_config.h"

tests/unit/CMakeLists.txt

@@ -40,7 +40,7 @@ add_custom_command(OUTPUT "${BUNDLE}.c"
 
 add_executable(${BUNDLE} EXCLUDE_FROM_ALL "${BUNDLE}.c")
 add_dependencies(${BUNDLE} curlu-unitprotos)
-add_dependencies(testbins ${BUNDLE})
+add_dependencies(tt ${BUNDLE})
 target_link_libraries(${BUNDLE} curlu)
 target_include_directories(${BUNDLE} PRIVATE
   "${PROJECT_BINARY_DIR}/lib"            # for "curl_config.h", "unitprotos.h"