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|
load(
"@rules_erlang//:util.bzl",
"path_join",
)
load(
"@rules_erlang//private:util.bzl",
"additional_file_dest_relative_path",
)
load(
"//bazel/elixir:elixir_toolchain.bzl",
"elixir_dirs",
"erlang_dirs",
"maybe_install_erlang",
)
def _impl(ctx):
(erlang_home, _, erlang_runfiles) = erlang_dirs(ctx)
(elixir_home, elixir_runfiles) = elixir_dirs(ctx)
out = ctx.actions.declare_file(ctx.attr.out.name)
mix_invocation_dir = ctx.actions.declare_directory("{}_mix".format(ctx.label.name))
package_dir = path_join(
ctx.label.workspace_root,
ctx.label.package,
)
copy_srcs_commands = []
for src in ctx.files.srcs:
dest = additional_file_dest_relative_path(ctx.label, src)
copy_srcs_commands.extend([
'mkdir -p "$(dirname ${{MIX_INVOCATION_DIR}}/{dest})"'.format(
dest = dest,
),
'cp {flags}"{src}" "${{MIX_INVOCATION_DIR}}/{dest}"'.format(
flags = "-r " if src.is_directory else "",
src = src.path,
dest = dest,
),
])
script = """set -euo pipefail
{maybe_install_erlang}
if [[ "{elixir_home}" == /* ]]; then
ABS_ELIXIR_HOME="{elixir_home}"
else
ABS_ELIXIR_HOME=$PWD/{elixir_home}
fi
ABS_OUT_PATH="$PWD/{out}"
export PATH="$ABS_ELIXIR_HOME"/bin:"{erlang_home}"/bin:${{PATH}}
export LANG="en_US.UTF-8"
export LC_ALL="en_US.UTF-8"
MIX_INVOCATION_DIR="{mix_invocation_dir}"
{copy_srcs_commands}
cd "${{MIX_INVOCATION_DIR}}"
export HOME="${{PWD}}"
export MIX_ENV=prod
export ERL_COMPILER_OPTIONS=deterministic
"${{ABS_ELIXIR_HOME}}"/bin/mix archive.build -o "${{ABS_OUT_PATH}}"
# remove symlinks from the _build directory since it
# is an unused output, and bazel does not allow them
find . -type l -delete
""".format(
maybe_install_erlang = maybe_install_erlang(ctx),
erlang_home = erlang_home,
elixir_home = elixir_home,
mix_invocation_dir = mix_invocation_dir.path,
copy_srcs_commands = "\n".join(copy_srcs_commands),
package_dir = package_dir,
out = out.path,
)
inputs = depset(
direct = ctx.files.srcs,
transitive = [
erlang_runfiles.files,
elixir_runfiles.files,
],
)
ctx.actions.run_shell(
inputs = inputs,
outputs = [
out,
mix_invocation_dir,
],
command = script,
mnemonic = "MIX",
)
return [
DefaultInfo(
files = depset([out]),
),
]
mix_archive_build = rule(
implementation = _impl,
attrs = {
"srcs": attr.label_list(
mandatory = True,
allow_files = True,
),
"out": attr.output(),
},
toolchains = [
":toolchain_type",
],
)
|
