Use Buck2 for generating codes and building all

.buckconfig

@@ -0,0 +1,17 @@
+[cells]
+root = .
+prelude = prelude
+toolchains = toolchains
+none = none
+
+[cell_aliases]
+config = prelude
+ovr_config = prelude
+fbcode = none
+fbsource = none
+fbcode_macros = none
+buck = none
+
+[parser]
+target_platform_detector_spec = \
+    target:root//...->prelude//platforms:default

.buckconfig.d/01-default-platform

@@ -0,0 +1,5 @@
+[build]
+execution_platforms = prelude//platforms:default
+
+[test]
+re_profile = default

BUCK

@@ -0,0 +1,259 @@
+### imgui
+
+genrule(
+    name = "imgui_gen",
+    srcs = [
+        "imgui-gen/Gen.hs",
+    ],
+    out = "imgui_gen",
+    cmd = "$(exe_target @toolchains//:ghc) imgui-gen/Gen.hs -o ${OUT}",
+)
+
+genrule(
+    name = "generate_imgui",
+    srcs = glob(
+        ["imgui-gen/template/*"],
+    ),
+    out = "imgui",
+    cmd = "$(location :imgui_gen) gen --template=imgui-gen/template --output=$OUT",
+)
+
+genrule(
+    name = "build_imgui",
+    srcs = [
+        ":generate_imgui",
+    ],
+    out = "imgui",
+    cmd = '''
+       pushd imgui
+       $(exe_target @toolchains//:cabal) build --builddir=dist-newstyle --ghc-options="-framework OpenGL"
+       popd
+       cp -a imgui/dist-newstyle $OUT
+    ''',
+)
+
+### implot
+
+genrule(
+    name = "implot_gen",
+    srcs = [
+        "implot-gen/Gen.hs",
+    ],
+    out = "implot_gen",
+    cmd = "$(exe_target @toolchains//:ghc) implot-gen/Gen.hs -o ${OUT}",
+)
+
+genrule(
+    name = "generate_implot",
+    srcs = glob(
+        ["implot-gen/template/*"],
+    ),
+    out = "implot",
+    cmd = "$(location :implot_gen) gen --template=implot-gen/template --output=$OUT",
+)
+
+genrule(
+    name = "build_implot",
+    srcs = [
+        ":generate_implot",
+    ],
+    out = "implot",
+    cmd = '''
+       pushd implot
+       $(exe_target @toolchains//:cabal) build --builddir=dist-newstyle \
+         --package-db=../$(location :build_imgui)/packagedb/ghc-9.6.7/
+       popd
+       cp -a implot/dist-newstyle $OUT
+    ''',
+)
+
+### implot3d
+
+genrule(
+    name = "implot3d_gen",
+    srcs = [
+        "implot3d-gen/Gen.hs",
+    ],
+    out = "implot3d_gen",
+    cmd = "$(exe_target @toolchains//:ghc) implot3d-gen/Gen.hs -o ${OUT}",
+)
+
+genrule(
+    name = "generate_implot3d",
+    srcs = glob(
+        ["implot3d-gen/template/*"],
+    ),
+    out = "implot3d",
+    cmd = "$(location :implot3d_gen) gen --template=implot3d-gen/template --output=$OUT",
+)
+
+genrule(
+    name = "build_implot3d",
+    srcs = [
+        ":generate_implot3d",
+    ],
+    out = "implot3d",
+    cmd = '''
+       pushd implot3d
+       $(exe_target @toolchains//:cabal) build --builddir=dist-newstyle \
+         --package-db=../$(location :build_imgui)/packagedb/ghc-9.6.7/ \
+         --package-db=../$(location :build_implot)/packagedb/ghc-9.6.7/
+       popd
+       cp -a implot3d/dist-newstyle $OUT
+    ''',
+)
+
+### DEMO
+
+# imgui-splitter-demo
+
+genrule(
+    name = "build_imgui_splitter_demo",
+    srcs = glob(
+        ["examples/imgui-splitter-demo/**/*"],
+    ),
+    out = "imgui_splitter_demo",
+    cmd = '''
+       pushd examples/imgui-splitter-demo
+       $(exe_target @toolchains//:cabal) build --builddir=dist-newstyle \
+         --ghc-options="-framework OpenGL" \
+         --package-db=../../$(location :build_imgui)/packagedb/ghc-9.6.7/ \
+         --package-db=../../$(location :build_implot)/packagedb/ghc-9.6.7/
+       popd
+       cp -a examples/imgui-splitter-demo/dist-newstyle $OUT
+    ''',
+)
+
+genrule(
+    name = "imgui_splitter_demo_sh",
+    out = "imgui_splitter_demo.sh",
+    cmd = '''
+cat > $OUT <<EOF
+#!$BASH
+set -e
+cd \\`dirname "\\$0"\\`
+$(location :build_imgui_splitter_demo)/build/aarch64-osx/ghc-9.6.7/imgui-splitter-demo-0.1.0.0/x/imgui-splitter-demo/build/imgui-splitter-demo/imgui-splitter-demo
+EOF
+chmod +x $OUT
+    ''',
+)
+
+sh_binary(
+    name = "run_imgui_splitter_demo",
+    main = ":imgui_splitter_demo_sh",
+)
+
+# draw-demo
+
+genrule(
+    name = "build_draw_demo",
+    srcs = glob(
+        ["examples/draw-demo/**/*"],
+    ),
+    out = "draw_demo",
+    cmd = '''
+       pushd examples/draw-demo
+       $(exe_target @toolchains//:cabal) build --builddir=dist-newstyle \
+         --ghc-options="-framework OpenGL" \
+         --package-db=../../$(location :build_imgui)/packagedb/ghc-9.6.7/ \
+         --package-db=../../$(location :build_implot)/packagedb/ghc-9.6.7/
+       popd
+       cp -a examples/draw-demo/dist-newstyle $OUT
+    ''',
+)
+
+genrule(
+    name = "draw_demo_sh",
+    out = "draw_demo.sh",
+    cmd = '''
+cat > $OUT <<EOF
+#!$BASH
+set -e
+cd \\`dirname "\\$0"\\`
+$(location :build_draw_demo)/build/aarch64-osx/ghc-9.6.7/draw-demo-0.1.0.0/x/draw-demo/build/draw-demo/draw-demo
+EOF
+chmod +x $OUT
+    ''',
+)
+
+sh_binary(
+    name = "run_draw_demo",
+    main = ":draw_demo_sh",
+)
+
+# plot-demo
+
+genrule(
+    name = "build_plot_demo",
+    srcs = glob(
+        ["examples/plot-demo/**/*"],
+    ),
+    out = "plot_demo",
+    cmd = '''
+       pushd examples/plot-demo
+       $(exe_target @toolchains//:cabal) build --builddir=dist-newstyle \
+         --ghc-options="-framework OpenGL" \
+         --package-db=../../$(location :build_imgui)/packagedb/ghc-9.6.7/ \
+         --package-db=../../$(location :build_implot)/packagedb/ghc-9.6.7/
+       popd
+       cp -a examples/plot-demo/dist-newstyle $OUT
+    ''',
+)
+
+genrule(
+    name = "plot_demo_sh",
+    out = "plot_demo.sh",
+    cmd = '''
+cat > $OUT <<EOF
+#!$BASH
+set -e
+cd \\`dirname "\\$0"\\`
+$(location :build_plot_demo)/build/aarch64-osx/ghc-9.6.7/plot-demo-0.1.0.0/x/plot-demo/build/plot-demo/plot-demo
+EOF
+chmod +x $OUT
+    ''',
+)
+
+sh_binary(
+    name = "run_plot_demo",
+    main = ":plot_demo_sh",
+)
+
+# plot3d-demo
+
+genrule(
+    name = "build_plot3d_demo",
+    srcs = glob(
+        ["examples/plot3d-demo/**/*"],
+    ),
+    out = "plot3d_demo",
+    cmd = '''
+       pushd examples/plot3d-demo
+       $(exe_target @toolchains//:cabal) build --builddir=dist-newstyle \
+         --ghc-options="-framework OpenGL" \
+         --package-db=../../$(location :build_imgui)/packagedb/ghc-9.6.7/ \
+         --package-db=../../$(location :build_implot)/packagedb/ghc-9.6.7/ \
+         --package-db=../../$(location :build_implot3d)/packagedb/ghc-9.6.7/
+       popd
+       cp -a examples/plot3d-demo/dist-newstyle $OUT
+    ''',
+)
+
+genrule(
+    name = "plot3d_demo_sh",
+    out = "plot3d_demo.sh",
+    cmd = '''
+cat > $OUT <<EOF
+#!$BASH
+set -e
+cd \\`dirname "\\$0"\\`
+$(location :build_plot3d_demo)/build/aarch64-osx/ghc-9.6.7/plot3d-demo-0.1.0.0/x/plot3d-demo/build/plot3d-demo/plot3d-demo
+EOF
+chmod +x $OUT
+    ''',
+)
+
+sh_binary(
+    name = "run_plot3d_demo",
+    main = ":plot3d_demo_sh",
+)