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Support both bzlmod and nix in start script (Fixes #2204) #2205

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Support both bzlmod and nix in start script (Fixes #2204) #2205

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194 changes: 159 additions & 35 deletions start
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Original file line number Diff line number Diff line change
Expand Up @@ -65,11 +65,6 @@ parse_args () {
*) usage 1 ;;
esac
done

if $BZLMOD && [ $MODE != bindists ]; then
stderr "error: --with-bzlmod is only supported with --use-bindists"
exit 1
fi
}

check_dir () {
Expand Down Expand Up @@ -376,25 +371,105 @@ if $BZLMOD; then
cat >MODULE.bazel <<EOF
module(name = "your_project_name_here", version = "0.1")

bazel_dep(name = "rules_haskell", version = "0.19")
bazel_dep(name = "rules_cc", version = "0.0.9")

haskell_toolchains = use_extension(
"@rules_haskell//extensions:haskell_toolchains.bzl",
"haskell_toolchains",
)

haskell_toolchains.bindists(version = "$GHC_VERSION")
EOF

non_module_deps = use_extension(
"//:non_module_deps.bzl",
"non_module_deps",
)
case "${MODE}" in
"bindists") cat <<-EOF
bazel_dep(name = "rules_haskell", version = "0.19")
bazel_dep(name = "rules_cc", version = "0.0.9")

haskell_toolchains = use_extension(
"@rules_haskell//extensions:haskell_toolchains.bzl",
"haskell_toolchains",
)

haskell_toolchains.bindists(version = "$GHC_VERSION")

non_module_deps = use_extension(
"//:non_module_deps.bzl",
"non_module_deps",
)
EOF
;;
"nix") cat <<-EOF
# Archive overrides
###################

archive_override(
module_name = "rules_nixpkgs_posix",
integrity = "sha256-mA7fzu8uWeESLZvmxSQTvCmENfCj1FJTK4pI11Yv/Wc=",
strip_prefix = "rules_nixpkgs-0.10.0/toolchains/posix",
urls = ["https://github.com/tweag/rules_nixpkgs/releases/download/v0.10.0/rules_nixpkgs-0.10.0.tar.gz"],
)

archive_override(
module_name = "rules_nixpkgs_cc",
integrity = "sha256-KlVTSNf4WT/KK/P8bOU8XWKSnegbbCkuI/FsVXwK5Fo=",
strip_prefix = "rules_nixpkgs-0.11.1/toolchains/cc",
urls = ["https://github.com/tweag/rules_nixpkgs/releases/download/v0.11.1/rules_nixpkgs-0.11.1.tar.gz"],
)

archive_override(
module_name = "rules_nixpkgs_python",
integrity = "sha256-KlVTSNf4WT/KK/P8bOU8XWKSnegbbCkuI/FsVXwK5Fo=",
strip_prefix = "rules_nixpkgs-0.11.1/toolchains/python",
urls = ["https://github.com/tweag/rules_nixpkgs/releases/download/v0.11.1/rules_nixpkgs-0.11.1.tar.gz"],
)

archive_override(
module_name = "rules_haskell_nix",
integrity = "sha256-J88OdrV8P6lWf1nVxzwcpzcQMKohoakdze0K3SFzwzU=",
strip_prefix = "rules_haskell-0.19/rules_haskell_nix/",
urls = ["https://github.com/tweag/rules_haskell/archive/refs/tags/v0.19.tar.gz"],
)


# Dependencies
##############

bazel_dep(name = "platforms", version = "0.0.10")
bazel_dep(name = "rules_nixpkgs_posix", version = "0.10.0")
bazel_dep(name = "rules_cc", version = "0.0.9")
bazel_dep(name = "rules_nixpkgs_core", version = "0.11.1")
bazel_dep(name = "rules_nixpkgs_cc", version = "0.11.1")
bazel_dep(name = "rules_nixpkgs_python", version = "0.11.1")

# Important! rules_haskell_nix must be loaded BEFORE rules_haskell
bazel_dep(name = "rules_haskell_nix", version = "0.19")
bazel_dep(name = "rules_haskell", version = "0.19")

# Toolchains
############

non_module_deps = use_extension(
"//:non_module_deps.bzl",
"non_module_deps"
)
use_repo(
non_module_deps,
"nixpkgs",
"local_config_cc_info",
"local_config_cc_toolchains",
"nixpkgs_python_toolchain",
)
register_toolchains("@local_config_cc_toolchains//:all")
register_toolchains("@nixpkgs_python_toolchain//:toolchain")

nix_haskell_toolchains = use_extension(
"@rules_haskell_nix//extensions:nix_haskell_toolchains.bzl",
"nix_haskell_toolchains",
)
nix_haskell_toolchains.new(
attribute_path = "",
nix_file_content = """with import <nixpkgs> {}; haskell.packages.ghc$( echo "$GHC_VERSION" | tr -d . ).ghc""",
repository = "@nixpkgs",
version = "${GHC_VERSION}",
)
EOF
;;
esac >>MODULE.bazel

use_repo(
non_module_deps,
"zlib.dev",
)
cat >>MODULE.bazel <<EOF

stack = use_extension(
"@rules_haskell//extensions:stack_snapshot.bzl",
Expand All @@ -408,6 +483,11 @@ use_repo(
"stackage-unpinned",
)

use_repo(
non_module_deps,
"zlib.dev",
)

stack.package(
name = "zlib",
extra_deps = ["@zlib.dev//:zlib"],
Expand All @@ -425,20 +505,64 @@ EOF

stderr "Creating non_module_deps.bzl"

cat >non_module_deps.bzl <<-EOF
load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")

def _non_module_deps_impl(_mctx):
http_archive(
name = "zlib.dev",
build_file = "//:${ZLIB_BUILD_FILE}",
sha256 = "b5b06d60ce49c8ba700e0ba517fa07de80b5d4628a037f4be8ad16955be7a7c0",
strip_prefix = "zlib-1.3",
urls = ["https://github.com/madler/zlib/archive/v1.3.tar.gz"],
)

non_module_deps = module_extension(implementation = _non_module_deps_impl)
case "${MODE}" in
"bindists") cat <<-EOF
load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
def _non_module_deps_impl(_mctx):
http_archive(
name = "zlib.dev",
build_file = "//:${ZLIB_BUILD_FILE}",
sha256 = "b5b06d60ce49c8ba700e0ba517fa07de80b5d4628a037f4be8ad16955be7a7c0",
strip_prefix = "zlib-1.3",
urls = ["https://github.com/madler/zlib/archive/v1.3.tar.gz"],
)
non_module_deps = module_extension(implementation = _non_module_deps_impl)
EOF
;;
"nix") cat <<-EOF
# Load nixpkgs_git_repository from rules_nixpkgs,
# which was already initialized by rules_haskell_dependencies above.
load("@rules_nixpkgs_cc//:cc.bzl", "nixpkgs_cc_configure")
load(
"@rules_nixpkgs_core//:nixpkgs.bzl",
"nixpkgs_git_repository",
"nixpkgs_package",
)
load("@rules_nixpkgs_python//:python.bzl", "nixpkgs_python_configure")
def _non_module_deps_impl(_mctx):
# Fetch a version of nixpkgs from GitHub.
# For more information see the documentation of rules_nixpkgs at
# https://github.com/tweag/rules_nixpkgs/blob/master/README.md
nixpkgs_git_repository(
name = "nixpkgs",
revision = "nixos-23.11",
)
nixpkgs_cc_configure(
name = "local_config_cc",
repository = "@nixpkgs",
register = False,
)
nixpkgs_python_configure(
name = "nixpkgs_python_toolchain",
repository = "@nixpkgs",
register = False,
)
# For zlib.BUILD.bazel
nixpkgs_package(
name = "nixpkgs_zlib",
attribute_path = "zlib",
repository = "@nixpkgs",
)
nixpkgs_package(
name = "zlib.dev",
build_file = "//:zlib.BUILD.bazel",
repository = "@nixpkgs",
)
non_module_deps = module_extension(implementation = _non_module_deps_impl)
EOF
;;
esac >non_module_deps.bzl

fi

## Write .bazelrc File #################################################
Expand Down