Make: Build just 1 target for VS Code debug

Author: ashvardanian

.vscode/build_current.cmake

@@ -0,0 +1,52 @@
+# build_current.cmake
+# Cross-platform script to build the current file's target
+#
+# Usage: cmake -DFILE=<file> -DBUILD_TYPE=<Debug|Release> -P build_current.cmake
+
+cmake_minimum_required(VERSION 3.14)
+
+if (NOT DEFINED FILE)
+    message(FATAL_ERROR "FILE not specified. Usage: cmake -DFILE=path/to/file.cpp -P build_current.cmake")
+endif ()
+
+if (NOT DEFINED BUILD_TYPE)
+    set(BUILD_TYPE "Debug")
+    message(STATUS "BUILD_TYPE not specified, defaulting to Debug")
+endif ()
+
+# Extract basename without extension
+get_filename_component(BASENAME "${FILE}" NAME_WE)
+
+# Map filename patterns to CMake targets
+if (BASENAME MATCHES "^bench_(.+)$")
+    # Benchmark files: bench_find.cpp -> stringzilla_bench_find_cpp20
+    set(TARGET "stringzilla_${BASENAME}_cpp20")
+else ()
+    message(FATAL_ERROR "Unknown file pattern: ${BASENAME}\nSupported patterns:\n  - bench_*.cpp\n  - test_stringzilla.cpp\n  - test_stringzillas.cpp")
+endif ()
+
+# Determine build directory
+string(TOLOWER "${BUILD_TYPE}" build_type_lower)
+set(BUILD_DIR "${CMAKE_CURRENT_LIST_DIR}/../build_${build_type_lower}")
+
+# Verify build directory exists
+if (NOT EXISTS "${BUILD_DIR}")
+    message(FATAL_ERROR "Build directory not found: ${BUILD_DIR}\nRun: cmake -DCMAKE_BUILD_TYPE=${BUILD_TYPE} -B ${BUILD_DIR}")
+endif ()
+
+message(STATUS "Building target: ${TARGET}")
+message(STATUS "Build directory: ${BUILD_DIR}")
+message(STATUS "Build type: ${BUILD_TYPE}")
+
+# Execute the build
+execute_process(
+    COMMAND cmake --build ${BUILD_DIR} --config ${BUILD_TYPE} --target ${TARGET}
+    RESULT_VARIABLE result
+    WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/..
+)
+
+if (result EQUAL 0)
+    message(STATUS "Build succeeded: ${TARGET}")
+else ()
+    message(FATAL_ERROR "Build failed with exit code: ${result}")
+endif ()

.vscode/launch.json

@@ -106,13 +106,17 @@
           "name": "ASAN_OPTIONS",
           "value": "detect_leaks=0:atexit=1:strict_init_order=1:strict_string_checks=1"
         },
+        {
+          "name": "STRINGWARS_TOKENS",
+          "value": "file"
+        },
         {
           "name": "STRINGWARS_DATASET",
           "value": "utf8.txt"
         }
       ],
       "stopAtEntry": false,
-      "preLaunchTask": "Build Benchmarks: Debug",
+      "preLaunchTask": "Build Current File: Debug",
       "linux": {
         "MIMode": "gdb",
         "setupCommands": [
@@ -149,7 +153,7 @@
         }
       ],
       "stopAtEntry": false,
-      "preLaunchTask": "Build Benchmarks: Debug",
+      "preLaunchTask": "Build Current File: Debug",
       "linux": {
         "MIMode": "gdb",
         "setupCommands": [
@@ -182,7 +186,7 @@
         }
       ],
       "stopAtEntry": false,
-      "preLaunchTask": "Build Benchmarks: Debug"
+      "preLaunchTask": "Build Current File: Debug"
     },
     {
       "name": "Current Python File",

.vscode/tasks.json

@@ -78,6 +78,41 @@
           }
         ]
       }
+    },
+    {
+      "label": "Build Current File: Debug",
+      "command": "cmake",
+      "args": [
+        "-DFILE=${file}",
+        "-DBUILD_TYPE=Debug",
+        "-P",
+        "${workspaceFolder}/.vscode/build_current.cmake"
+      ],
+      "type": "shell",
+      "group": {
+        "kind": "build",
+        "isDefault": true
+      },
+      "presentation": {
+        "reveal": "always",
+        "panel": "shared"
+      }
+    },
+    {
+      "label": "Build Current File: Release",
+      "command": "cmake",
+      "args": [
+        "-DFILE=${file}",
+        "-DBUILD_TYPE=Release",
+        "-P",
+        "${workspaceFolder}/.vscode/build_current.cmake"
+      ],
+      "type": "shell",
+      "group": "build",
+      "presentation": {
+        "reveal": "always",
+        "panel": "shared"
+      }
     }
   ]
 }