Merge pull request #5 from amp-buildpacks/feat/issue-3

issue(#3): Rewrite using Go

.gitignore

@@ -0,0 +1,18 @@
+# Copyright (c) The Amphitheatre Authors. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+bin/
+dependencies/
+package/
+scratch/

buildpack.toml

@@ -1,21 +1,57 @@
-api = "0.10"
+# Copyright (c) The Amphitheatre Authors. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+api = "0.8"
 
 [buildpack]
-  description = "A Cloud Native Buildpack with an order definition suitable for solc applications"
+  description = "A Cloud Native Buildpack with an order definition suitable for Solc applications"
   homepage = "https://github.com/amp-buildpacks/solc"
   id = "amp-buildpacks/solc"
-  keywords = ["solc", "composite"]
-  name = "Solc Build Pack"
+  keywords = ["solc", "Solidity"]
+  sbom-formats = ["application/vnd.cyclonedx+json", "application/vnd.syft+json"]
+  name = "Paketo Buildpack for Solc"
   version = "0.1.0"
 
   [[buildpack.licenses]]
     type = "Apache-2.0"
     uri = "https://github.com/amp-buildpacks/solc/blob/main/LICENSE"
 
-# Targets the buildpack will work with
-[[targets]]
-os = "linux"
+[metadata]
+  include-files = ["LICENSE", "README.md", "bin/build", "bin/detect", "bin/main", "buildpack.toml"]
+  pre-package = "scripts/build.sh"
+
+  [[metadata.configurations]]
+    build = true
+    default = "false"
+    description = "enable the Solidity run process"
+    name = "BP_ENABLE_SOLC_PROCESS"
+
+  # from https://github.com/paketo-buildpacks/node-engine/blob/main/buildpack.toml
+  [[metadata.dependencies]]
+    checksum = "sha256:3fe4ec5d70c8b4ffc1461dec83ab23fc70124e137c4cbbe1ccc9d6ae6ec04a7d"
+    cpe = "cpe:2.3:a:nodejs:node.js:20.10.0:*:*:*:*:*:*:*"
+    deprecation_date = "2026-04-30T00:00:00Z"
+    id = "node"
+    licenses = ["0BSD", "Apache-2.0", "Artistic-2.0", "BSD-2-Clause", "BSD-3-Clause", "BSD-4-Clause", "BSD-Source-Code", "CC0-1.0", "ECL-2.0", "ICU", "MIT", "MIT-0", "SHL-0.5", "SHL-0.51", "Unicode-TOU"]
+    name = "Node Engine"
+    purl = "pkg:generic/node@v20.10.0?checksum=3fe4ec5d70c8b4ffc1461dec83ab23fc70124e137c4cbbe1ccc9d6ae6ec04a7d&download_url=https://nodejs.org/dist/v20.10.0/node-v20.10.0-linux-x64.tar.xz"
+    source = "https://nodejs.org/dist/v20.10.0/node-v20.10.0-linux-x64.tar.xz"
+    source-checksum = "sha256:3fe4ec5d70c8b4ffc1461dec83ab23fc70124e137c4cbbe1ccc9d6ae6ec04a7d"
+    stacks = ["io.buildpacks.stacks.jammy", "*"]
+    strip-components = 1
+    uri = "https://nodejs.org/dist/v20.10.0/node-v20.10.0-linux-x64.tar.xz"
+    version = "20.10.0"
 
-# Stacks (deprecated) the buildpack will work with
 [[stacks]]
-  id = "io.buildpacks.samples.stacks.jammy"
+  id = "*"

cmd/main/main.go

@@ -0,0 +1,30 @@
+// Copyright (c) The Amphitheatre Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package main
+
+import (
+	"os"
+
+	solc "github.com/amp-buildpacks/solc/solc"
+	"github.com/buildpacks/libcnb"
+	"github.com/paketo-buildpacks/libpak/bard"
+)
+
+func main() {
+	libcnb.Main(
+		solc.Detect{},
+		solc.Build{Logger: bard.NewLogger(os.Stdout)},
+	)
+}

go.mod

@@ -0,0 +1,23 @@
+module github.com/amp-buildpacks/solc
+
+go 1.20
+
+require (
+	github.com/buildpacks/libcnb v1.30.1
+	github.com/paketo-buildpacks/libpak v1.68.0
+)
+
+require (
+	github.com/BurntSushi/toml v1.3.2 // indirect
+	github.com/Masterminds/semver/v3 v3.2.1 // indirect
+	github.com/creack/pty v1.1.20 // indirect
+	github.com/h2non/filetype v1.1.3 // indirect
+	github.com/heroku/color v0.0.6 // indirect
+	github.com/imdario/mergo v0.3.16 // indirect
+	github.com/mattn/go-colorable v0.1.13 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/mitchellh/hashstructure/v2 v2.0.2 // indirect
+	github.com/onsi/gomega v1.30.0 // indirect
+	github.com/xi2/xz v0.0.0-20171230120015-48954b6210f8 // indirect
+	golang.org/x/sys v0.14.0 // indirect
+)

go.sum

@@ -0,0 +1,47 @@
+github.com/BurntSushi/toml v1.3.2 h1:o7IhLm0Msx3BaB+n3Ag7L8EVlByGnpq14C4YWiu/gL8=
+github.com/BurntSushi/toml v1.3.2/go.mod h1:CxXYINrC8qIiEnFrOxCa7Jy5BFHlXnUU2pbicEuybxQ=
+github.com/Masterminds/semver/v3 v3.2.1 h1:RN9w6+7QoMeJVGyfmbcgs28Br8cvmnucEXnY0rYXWg0=
+github.com/Masterminds/semver/v3 v3.2.1/go.mod h1:qvl/7zhW3nngYb5+80sSMF+FG2BjYrf8m9wsX0PNOMQ=
+github.com/buildpacks/libcnb v1.30.1 h1:airpkZzh8Mlt+SQEMTj0B1r5agDHZvgfpwzpKVMEgZQ=
+github.com/buildpacks/libcnb v1.30.1/go.mod h1:JU2fam/ECXw6I5iRnZbfKgjWsrZbzbgvZHR6WBSVHRc=
+github.com/creack/pty v1.1.20 h1:VIPb/a2s17qNeQgDnkfZC35RScx+blkKF8GV68n80J4=
+github.com/creack/pty v1.1.20/go.mod h1:MOBLtS5ELjhRRrroQr9kyvTxUAFNvYEK993ew/Vr4O4=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/golang/protobuf v1.5.3 h1:KhyjKVUg7Usr/dYsdSqoFveMYd5ko72D+zANwlG1mmg=
+github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
+github.com/h2non/filetype v1.1.3 h1:FKkx9QbD7HR/zjK1Ia5XiBsq9zdLi5Kf3zGyFTAFkGg=
+github.com/h2non/filetype v1.1.3/go.mod h1:319b3zT68BvV+WRj7cwy856M2ehB3HqNOt6sy1HndBY=
+github.com/heroku/color v0.0.6 h1:UTFFMrmMLFcL3OweqP1lAdp8i1y/9oHqkeHjQ/b/Ny0=
+github.com/heroku/color v0.0.6/go.mod h1:ZBvOcx7cTF2QKOv4LbmoBtNl5uB17qWxGuzZrsi1wLU=
+github.com/imdario/mergo v0.3.16 h1:wwQJbIsHYGMUyLSPrEq1CT16AhnhNJQ51+4fdHUnCl4=
+github.com/imdario/mergo v0.3.16/go.mod h1:WBLT9ZmE3lPoWsEzCh9LPo3TiwVN+ZKEjmz+hD27ysY=
+github.com/mattn/go-colorable v0.1.2/go.mod h1:U0ppj6V5qS13XJ6of8GYAs25YV2eR4EVcfRqFIhoBtE=
+github.com/mattn/go-colorable v0.1.13 h1:fFA4WZxdEF4tXPZVKMLwD8oUnCTTo08duU7wxecdEvA=
+github.com/mattn/go-colorable v0.1.13/go.mod h1:7S9/ev0klgBDR4GtXTXX8a3vIGJpMovkB8vQcUbaXHg=
+github.com/mattn/go-isatty v0.0.8/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s=
+github.com/mattn/go-isatty v0.0.16/go.mod h1:kYGgaQfpe5nmfYZH+SKPsOc2e4SrIfOl2e/yFXSvRLM=
+github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
+github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
+github.com/mitchellh/hashstructure/v2 v2.0.2 h1:vGKWl0YJqUNxE8d+h8f6NJLcCJrgbhC4NcD46KavDd4=
+github.com/mitchellh/hashstructure/v2 v2.0.2/go.mod h1:MG3aRVU/N29oo/V/IhBX8GR/zz4kQkprJgF2EVszyDE=
+github.com/onsi/gomega v1.30.0 h1:hvMK7xYz4D3HapigLTeGdId/NcfQx1VHMJc60ew99+8=
+github.com/onsi/gomega v1.30.0/go.mod h1:9sxs+SwGrKI0+PWe4Fxa9tFQQBG5xSsSbMXOI8PPpoQ=
+github.com/paketo-buildpacks/libpak v1.68.0 h1:unfJscVujFT8WZgUONMh4vp64x+LvAz6kwpPdagYibM=
+github.com/paketo-buildpacks/libpak v1.68.0/go.mod h1:Np94HbeUNYcMmaJEnaP5VgqGgaz86RhWA9nONRCN96U=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/sclevine/spec v1.4.0 h1:z/Q9idDcay5m5irkZ28M7PtQM4aOISzOpj4bUPkDee8=
+github.com/stretchr/objx v0.5.1 h1:4VhoImhV/Bm0ToFkXFi8hXNXwpDRZ/ynw3amt82mzq0=
+github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcUk=
+github.com/xi2/xz v0.0.0-20171230120015-48954b6210f8 h1:nIPpBwaJSVYIxUFsDv3M8ofmx9yWTog9BfvIu0q41lo=
+github.com/xi2/xz v0.0.0-20171230120015-48954b6210f8/go.mod h1:HUYIGzjTL3rfEspMxjDjgmT5uz5wzYJKVo23qUhYTos=
+golang.org/x/net v0.18.0 h1:mIYleuAkSbHh0tCv7RvjL3F6ZVbLjq4+R7zbOn3Kokg=
+golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.14.0 h1:Vz7Qs629MkJkGyHxUlRHizWJRG2j8fbQKjELVSNhy7Q=
+golang.org/x/sys v0.14.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/text v0.14.0 h1:ScX5w1eTa3QqT8oi6+ziP7dTV1S2+ALU0bI+0zXKWiQ=
+google.golang.org/protobuf v1.31.0 h1:g0LDEJHgrBl9N9r17Ru3sqWhkIx2NB67okBHPwC7hs8=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

scripts/build.sh

@@ -0,0 +1,16 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+GOOS="linux" go build -ldflags='-s -w' -o bin/main github.com/amp-buildpacks/solc/cmd/main
+
+if [ "${STRIP:-false}" != "false" ]; then
+  strip bin/main
+fi
+
+if [ "${COMPRESS:-none}" != "none" ]; then
+  $COMPRESS bin/main
+fi
+
+ln -fs main bin/build
+ln -fs main bin/detect

solc/build.go

@@ -0,0 +1,66 @@
+// Copyright (c) The Amphitheatre Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package solc
+
+import (
+	"fmt"
+
+	"github.com/buildpacks/libcnb"
+	"github.com/paketo-buildpacks/libpak"
+	"github.com/paketo-buildpacks/libpak/bard"
+)
+
+type Build struct {
+	Logger bard.Logger
+}
+
+func (b Build) Build(context libcnb.BuildContext) (libcnb.BuildResult, error) {
+	b.Logger.Title(context.Buildpack)
+	result := libcnb.NewBuildResult()
+
+	cr, err := libpak.NewConfigurationResolver(context.Buildpack, &b.Logger)
+	if err != nil {
+		return libcnb.BuildResult{}, fmt.Errorf("unable to create configuration resolver\n%w", err)
+	}
+
+	dc, err := libpak.NewDependencyCache(context)
+	if err != nil {
+		return libcnb.BuildResult{}, fmt.Errorf("unable to create dependency cache\n%w", err)
+	}
+	dc.Logger = b.Logger
+
+	dr, err := libpak.NewDependencyResolver(context)
+	if err != nil {
+		return libcnb.BuildResult{}, fmt.Errorf("unable to create dependency resolver\n%w", err)
+	}
+
+	// install solc
+	nodeDependency, err := dr.Resolve("node", "")
+	if err != nil {
+		return libcnb.BuildResult{}, fmt.Errorf("unable to find dependency\n%w", err)
+	}
+
+	solcLayer := NewSolc(nodeDependency, dc)
+	solcLayer.Logger = b.Logger
+
+	enableProcess, _ := cr.Resolve("BP_ENABLE_SOLC_PROCESS")
+	result.Processes, err = solcLayer.BuildProcessTypes(enableProcess)
+	if err != nil {
+		return libcnb.BuildResult{}, fmt.Errorf("unable to build list of process types\n%w", err)
+	}
+	result.Layers = append(result.Layers, solcLayer)
+
+	return result, nil
+}