Add FreeBSD Support

.github/workflows/build.yml

@@ -54,6 +54,35 @@ jobs:
         run: |
           make format || true
           make test
+  test-freebsd-amd64:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - name: Read Go version
+        run: sed -En 's/^go (.*)$/GO_VERSION=\1/p' go.mod >> $GITHUB_OUTPUT
+        id: version
+      - name: Test
+        uses: vmactions/freebsd-vm@v1
+        with:
+          usesh: true
+          prepare: |
+            pkg install -y wget gmake curl jq git bash
+            GOARCHIVE_BASENAME=$(curl -sSL 'https://go.dev/dl/?mode=json' | \
+            jq -r '.[0].files[] | select(.os == "freebsd") | select(.arch == "amd64") | select(.kind == "archive") | .filename')
+            GOARCHIVE_URL="https://go.dev/dl/$GOARCHIVE_BASENAME"
+            echo "downloading go from $GOARCHIVE_URL"
+            wget -q "$GOARCHIVE_URL"
+            ls -la "$GOARCHIVE_BASENAME"
+            tar -C /usr/local -xzf "$GOARCHIVE_BASENAME"
+          run: |
+            git config --global --add safe.directory '*'
+            export GOROOT=/usr/local/go
+            export GOPATH=/usr/local/gopath
+            export PATH=$PATH:$GOROOT/bin:$GOPATH/bin
+            gmake format || true
+            gmake test
   test-windows:
     runs-on: windows-2019
     steps:
@@ -109,6 +138,7 @@ jobs:
     needs:
       - test-linux-amd64
       - test-linux-arm64
+      - test-freebsd-amd64
       - test-windows
     runs-on: ubuntu-latest
     permissions:
@@ -167,6 +197,14 @@ jobs:
         with:
           name: lifecycle-linux-s390x-sha256
           path: out/lifecycle-v*+linux.s390x.tgz.sha256
+      - uses: actions/upload-artifact@v3
+        with:
+          name: lifecycle-freebsd-x86-64
+          path: out/lifecycle-v*+freebsd.x86-64.tgz
+      - uses: actions/upload-artifact@v3
+        with:
+          name: lifecycle-freebsd-x86-64-sha256
+          path: out/lifecycle-v*+freebsd.x86-64.tgz.sha256
       - uses: actions/upload-artifact@v3
         with:
           name: lifecycle-windows-x86-64
@@ -217,13 +255,17 @@ jobs:
           LINUX_S390X_SHA=$(go run ./tools/image/main.go -lifecyclePath ./out/lifecycle-v*+linux.s390x.tgz -tag buildpacksio/lifecycle:${LIFECYCLE_IMAGE_TAG}-linux-s390x -arch s390x | awk '{print $NF}')
           echo "LINUX_S390X_SHA: $LINUX_S390X_SHA"
 
+          FREEBSD_AMD64_SHA=$(go run ./tools/image/main.go -lifecyclePath ./out/lifecycle-v*+freebsd.x86-64.tgz -tag buildpacksio/lifecycle:${LIFECYCLE_IMAGE_TAG}-freebsd-x86-64 -os freebsd | awk '{print $NF}')
+          echo "FREEBSD_AMD64_SHA: $FREEBSD_AMD64_SHA"
+
           WINDOWS_AMD64_SHA=$(go run ./tools/image/main.go -lifecyclePath ./out/lifecycle-v*+windows.x86-64.tgz -tag buildpacksio/lifecycle:${LIFECYCLE_IMAGE_TAG}-windows -os windows | awk '{print $NF}')
           echo "WINDOWS_AMD64_SHA: $WINDOWS_AMD64_SHA"
 
           docker manifest create buildpacksio/lifecycle:${LIFECYCLE_IMAGE_TAG} \
               buildpacksio/lifecycle:${LIFECYCLE_IMAGE_TAG}-linux-x86-64@${LINUX_AMD64_SHA} \
               buildpacksio/lifecycle:${LIFECYCLE_IMAGE_TAG}-linux-arm64@${LINUX_ARM64_SHA} \
               buildpacksio/lifecycle:${LIFECYCLE_IMAGE_TAG}-linux-s390x@${LINUX_S390X_SHA} \
+              buildpacksio/lifecycle:${LIFECYCLE_IMAGE_TAG}-freebsd-x86-64@${FREEBSD_AMD64_SHA} \
               buildpacksio/lifecycle:${LIFECYCLE_IMAGE_TAG}-windows@${WINDOWS_AMD64_SHA}
 
           MANIFEST_SHA=$(docker manifest push buildpacksio/lifecycle:${LIFECYCLE_IMAGE_TAG})
@@ -278,6 +320,42 @@ jobs:
           LIFECYCLE_PATH="../lifecycle-v${{ env.LIFECYCLE_VERSION }}+linux.x86-64.tgz" \
           LIFECYCLE_IMAGE="buildpacksio/lifecycle:${{ env.LIFECYCLE_IMAGE_TAG }}" \
           make acceptance
+  pack-acceptance-freebsd:
+    if: github.event_name == 'push'
+    needs: build-and-publish
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          repository: 'buildpacks/pack'
+          path: 'pack'
+          ref: 'main'
+          fetch-depth: 0 # fetch all history for all branches and tags
+      - name: Set up go
+        uses: actions/setup-go@v5
+        with:
+          go-version-file: 'pack/go.mod'
+      - uses: actions/download-artifact@v3
+        with:
+          name: version
+      - uses: actions/download-artifact@v3
+        with:
+          name: tag
+      - name: Set env
+        run: |
+          cat version.txt >> $GITHUB_ENV
+          cat tag.txt >> $GITHUB_ENV
+      - uses: actions/download-artifact@v3
+        with:
+          name: lifecycle-freebsd-x86-64
+          path: pack
+      - name: Run pack acceptance
+        run: |
+          cd pack
+          git checkout $(git describe --abbrev=0 --tags) # check out the latest tag
+          LIFECYCLE_PATH="../lifecycle-v${{ env.LIFECYCLE_VERSION }}+freebsd.x86-64.tgz" \
+          LIFECYCLE_IMAGE="buildpacksio/lifecycle:${{ env.LIFECYCLE_IMAGE_TAG }}" \
+          make acceptance
   pack-acceptance-windows:
     if: github.event_name == 'push'
     needs: build-and-publish

.github/workflows/draft-release.yml

@@ -24,7 +24,7 @@ jobs:
             exit 1
           fi
           echo "LIFECYCLE_VERSION=$version" >> $GITHUB_ENV
-      - name: Determine download urls for linux-x86-64, linux-arm64, linux-s390x, and windows
+      - name: Determine download urls for linux-x86-64, linux-arm64, linux-s390x, freebsd-x86-64, and windows
         id: artifact-urls
         # FIXME: this script should be updated to work with actions/github-script@v6
         uses: actions/github-script@v3

.github/workflows/post-release.yml

@@ -44,6 +44,10 @@ jobs:
           echo "LINUX_S390X_SHA: $LINUX_S390X_SHA"
           echo "LINUX_S390X_SHA=$LINUX_S390X_SHA" >> $GITHUB_ENV
 
+          FREEBSD_AMD64_SHA=$(cosign verify -key cosign.pub buildpacksio/lifecycle:${{ env.LIFECYCLE_IMAGE_TAG }}-freebsd-x86-64 | jq -r .[0].critical.image.\"docker-manifest-digest\")
+          echo "FREEBSD_AMD64_SHA: $FREEBSD_AMD64_SHA"
+          echo "FREEBSD_AMD64_SHA=$FREEBSD_AMD64_SHA" >> $GITHUB_ENV
+
           WINDOWS_AMD64_SHA=$(cosign verify --certificate-identity-regexp "https://github.com/${{ github.repository_owner }}/lifecycle/.github/workflows/build.yml" --certificate-oidc-issuer https://token.actions.githubusercontent.com buildpacksio/lifecycle:${{ env.LIFECYCLE_IMAGE_TAG }}-windows | jq -r .[0].critical.image.\"docker-manifest-digest\")
           echo "WINDOWS_AMD64_SHA: $WINDOWS_AMD64_SHA"
           echo "WINDOWS_AMD64_SHA=$WINDOWS_AMD64_SHA" >> $GITHUB_ENV
@@ -59,12 +63,14 @@ jobs:
           crane tag buildpacksio/lifecycle:${{ env.LIFECYCLE_IMAGE_TAG }}-linux-x86-64@${{ env.LINUX_AMD64_SHA }} ${{ env.LIFECYCLE_VERSION }}-linux-x86-64
           crane tag buildpacksio/lifecycle:${{ env.LIFECYCLE_IMAGE_TAG }}-linux-arm64@${{ env.LINUX_ARM64_SHA }} ${{ env.LIFECYCLE_VERSION }}-linux-arm64
           crane tag buildpacksio/lifecycle:${{ env.LIFECYCLE_IMAGE_TAG }}-linux-s390x@${{ env.LINUX_S390X_SHA }} ${{ env.LIFECYCLE_VERSION }}-linux-s390x
+          crane tag buildpacksio/lifecycle:${{ env.LIFECYCLE_IMAGE_TAG }}-freebsd-x86-64@${{ env.FREEBSD_AMD64_SHA }} ${{ env.LIFECYCLE_VERSION }}-freebsd-x86-64
           crane tag buildpacksio/lifecycle:${{ env.LIFECYCLE_IMAGE_TAG }}-windows@${{ env.WINDOWS_AMD64_SHA }} ${{ env.LIFECYCLE_VERSION }}-windows
 
           docker manifest create buildpacksio/lifecycle:${{ env.LIFECYCLE_VERSION }} \
             buildpacksio/lifecycle:${{ env.LIFECYCLE_VERSION }}-linux-x86-64@${{ env.LINUX_AMD64_SHA }} \
             buildpacksio/lifecycle:${{ env.LIFECYCLE_VERSION }}-linux-arm64@${{ env.LINUX_ARM64_SHA }} \
             buildpacksio/lifecycle:${{ env.LIFECYCLE_VERSION }}-linux-s390x@${{ env.LINUX_S390X_SHA }} \
+            buildpacksio/lifecycle:${{ env.LIFECYCLE_VERSION }}-freebsd-x86-64@${{ env.FREEBSD_AMD64_SHA }} \
             buildpacksio/lifecycle:${{ env.LIFECYCLE_VERSION }}-windows@${{ env.WINDOWS_AMD64_SHA }}
 
           MANIFEST_SHA=$(docker manifest push buildpacksio/lifecycle:${{ env.LIFECYCLE_VERSION }})
@@ -96,6 +102,7 @@ jobs:
           crane tag buildpacksio/lifecycle:${{ env.LIFECYCLE_IMAGE_TAG }}-linux-x86-64@${{ env.LINUX_AMD64_SHA }} latest-linux-x86-64
           crane tag buildpacksio/lifecycle:${{ env.LIFECYCLE_IMAGE_TAG }}-linux-arm64@${{ env.LINUX_ARM64_SHA }} latest-linux-arm64
           crane tag buildpacksio/lifecycle:${{ env.LIFECYCLE_IMAGE_TAG }}-linux-s390x@${{ env.LINUX_S390X_SHA }} latest-linux-s390x
+          crane tag buildpacksio/lifecycle:${{ env.LIFECYCLE_IMAGE_TAG }}-freebsd-x86-64@${{ env.FREEBSD_AMD64_SHA }} latest-freebsd-x86-64
           crane tag buildpacksio/lifecycle:${{ env.LIFECYCLE_IMAGE_TAG }}-windows@${{ env.WINDOWS_AMD64_SHA }} latest-windows
 
           docker manifest create buildpacksio/lifecycle:latest \

Makefile

@@ -45,6 +45,7 @@ build-linux-amd64: build-linux-amd64-lifecycle build-linux-amd64-symlinks build-
 build-linux-arm64: build-linux-arm64-lifecycle build-linux-arm64-symlinks build-linux-arm64-launcher
 build-windows-amd64: build-windows-amd64-lifecycle build-windows-amd64-symlinks build-windows-amd64-launcher
 build-linux-s390x: build-linux-s390x-lifecycle build-linux-s390x-symlinks build-linux-s390x-launcher
+build-freebsd-amd64: build-freebsd-amd64-lifecycle build-freebsd-amd64-symlinks build-freebsd-amd64-launcher
 
 build-image-linux-amd64: build-linux-amd64 package-linux-amd64
 build-image-linux-amd64: ARCHIVE_PATH=$(BUILD_DIR)/lifecycle-v$(LIFECYCLE_VERSION)+linux.x86-64.tgz
@@ -66,12 +67,19 @@ build-image-linux-s390x: ARCHIVE_PATH=$(BUILD_DIR)/lifecycle-v$(LIFECYCLE_VERSIO
 build-image-linux-s390x:
 	$(GOCMD) run ./tools/image/main.go -daemon -lifecyclePath $(ARCHIVE_PATH) -os linux -arch s390x -tag lifecycle:$(LIFECYCLE_IMAGE_TAG)
 
+build-image-freebsd-amd64: build-freebsd-amd64 package-freebsd-amd64
+build-image-freebsd-amd64: ARCHIVE_PATH=$(BUILD_DIR)/lifecycle-v$(LIFECYCLE_VERSION)+freebsd.x86-64.tgz
+build-image-freebsd-amd64:
+	$(GOCMD) run ./tools/image/main.go -daemon -lifecyclePath $(ARCHIVE_PATH) -os freebsd -arch amd64 -tag lifecycle:$(LIFECYCLE_IMAGE_TAG)
+
 build-linux-amd64-lifecycle: $(BUILD_DIR)/linux-amd64/lifecycle/lifecycle
 
 build-linux-arm64-lifecycle: $(BUILD_DIR)/linux-arm64/lifecycle/lifecycle
 
 build-linux-s390x-lifecycle: $(BUILD_DIR)/linux-s390x/lifecycle/lifecycle
 
+build-freebsd-amd64-lifecycle: $(BUILD_DIR)/freebsd-amd64/lifecycle/lifecycle
+
 $(BUILD_DIR)/linux-amd64/lifecycle/lifecycle: export GOOS:=linux
 $(BUILD_DIR)/linux-amd64/lifecycle/lifecycle: export GOARCH:=amd64
 $(BUILD_DIR)/linux-amd64/lifecycle/lifecycle: OUT_DIR?=$(BUILD_DIR)/$(GOOS)-$(GOARCH)/lifecycle
@@ -99,6 +107,15 @@ $(BUILD_DIR)/linux-s390x/lifecycle/lifecycle:
 	mkdir -p $(OUT_DIR)
 	$(GOENV) $(GOBUILD) -o $(OUT_DIR)/lifecycle -a ./cmd/lifecycle
 
+$(BUILD_DIR)/freebsd-amd64/lifecycle/lifecycle: export GOOS:=freebsd
+$(BUILD_DIR)/freebsd-amd64/lifecycle/lifecycle: export GOARCH:=amd64
+$(BUILD_DIR)/freebsd-amd64/lifecycle/lifecycle: OUT_DIR?=$(BUILD_DIR)/$(GOOS)-$(GOARCH)/lifecycle
+$(BUILD_DIR)/freebsd-amd64/lifecycle/lifecycle: $(GOFILES)
+$(BUILD_DIR)/freebsd-amd64/lifecycle/lifecycle:
+	@echo "> Building lifecycle/lifecycle for $(GOOS)/$(GOARCH)..."
+	mkdir -p $(OUT_DIR)
+	$(GOENV) $(GOBUILD) -o $(OUT_DIR)/lifecycle -a ./cmd/lifecycle
+
 build-linux-amd64-launcher: $(BUILD_DIR)/linux-amd64/lifecycle/launcher
 
 $(BUILD_DIR)/linux-amd64/lifecycle/launcher: export GOOS:=linux
@@ -135,6 +152,18 @@ $(BUILD_DIR)/linux-s390x/lifecycle/launcher:
 	$(GOENV) $(GOBUILD) -o $(OUT_DIR)/launcher -a ./cmd/launcher
 	test $$(du -m $(OUT_DIR)/launcher|cut -f 1) -le 3
 
+build-freebsd-amd64-launcher: $(BUILD_DIR)/freebsd-amd64/lifecycle/launcher
+
+$(BUILD_DIR)/freebsd-amd64/lifecycle/launcher: export GOOS:=freebsd
+$(BUILD_DIR)/freebsd-amd64/lifecycle/launcher: export GOARCH:=amd64
+$(BUILD_DIR)/freebsd-amd64/lifecycle/launcher: OUT_DIR?=$(BUILD_DIR)/$(GOOS)-$(GOARCH)/lifecycle
+$(BUILD_DIR)/freebsd-amd64/lifecycle/launcher: $(GOFILES)
+$(BUILD_DIR)/freebsd-amd64/lifecycle/launcher:
+	@echo "> Building lifecycle/launcher for $(GOOS)/$(GOARCH)..."
+	mkdir -p $(OUT_DIR)
+	$(GOENV) $(GOBUILD) -o $(OUT_DIR)/launcher -a ./cmd/launcher
+	test $$(du -m $(OUT_DIR)/launcher|cut -f 1) -le 3
+
 build-linux-amd64-symlinks: export GOOS:=linux
 build-linux-amd64-symlinks: export GOARCH:=amd64
 build-linux-amd64-symlinks: OUT_DIR?=$(BUILD_DIR)/$(GOOS)-$(GOARCH)/lifecycle
@@ -177,6 +206,20 @@ build-linux-s390x-symlinks:
 	ln -sf lifecycle $(OUT_DIR)/creator
 	ln -sf lifecycle $(OUT_DIR)/extender
 
+build-freebsd-amd64-symlinks: export GOOS:=freebsd
+build-freebsd-amd64-symlinks: export GOARCH:=amd64
+build-freebsd-amd64-symlinks: OUT_DIR?=$(BUILD_DIR)/$(GOOS)-$(GOARCH)/lifecycle
+build-freebsd-amd64-symlinks:
+	@echo "> Creating phase symlinks for $(GOOS)/$(GOARCH)..."
+	ln -sf lifecycle $(OUT_DIR)/detector
+	ln -sf lifecycle $(OUT_DIR)/analyzer
+	ln -sf lifecycle $(OUT_DIR)/restorer
+	ln -sf lifecycle $(OUT_DIR)/builder
+	ln -sf lifecycle $(OUT_DIR)/exporter
+	ln -sf lifecycle $(OUT_DIR)/rebaser
+	ln -sf lifecycle $(OUT_DIR)/creator
+	ln -sf lifecycle $(OUT_DIR)/extender
+
 build-windows-amd64-lifecycle: $(BUILD_DIR)/windows-amd64/lifecycle/lifecycle.exe
 
 $(BUILD_DIR)/windows-amd64/lifecycle/lifecycle.exe: export GOOS:=windows
@@ -288,6 +331,14 @@ run-syft-linux-s390x:
 	syft $(BUILD_DIR)/$(GOOS)-$(GOARCH)/lifecycle/lifecycle -o json=$(BUILD_DIR)/$(GOOS)-$(GOARCH)/lifecycle/lifecycle.sbom.syft.json -o spdx-json=$(BUILD_DIR)/$(GOOS)-$(GOARCH)/lifecycle/lifecycle.sbom.spdx.json -o cyclonedx-json=$(BUILD_DIR)/$(GOOS)-$(GOARCH)/lifecycle/lifecycle.sbom.cdx.json
 	syft $(BUILD_DIR)/$(GOOS)-$(GOARCH)/lifecycle/launcher -o json=$(BUILD_DIR)/$(GOOS)-$(GOARCH)/lifecycle/launcher.sbom.syft.json -o spdx-json=$(BUILD_DIR)/$(GOOS)-$(GOARCH)/lifecycle/launcher.sbom.spdx.json -o cyclonedx-json=$(BUILD_DIR)/$(GOOS)-$(GOARCH)/lifecycle/launcher.sbom.cdx.json
 
+run-syft-freebsd-amd64: install-syft
+run-syft-freebsd-amd64: export GOOS:=freebsd
+run-syft-freebsd-amd64: export GOARCH:=amd64
+run-syft-freebsd-amd64:
+	@echo "> Running syft..."
+	syft $(BUILD_DIR)/$(GOOS)-$(GOARCH)/lifecycle/lifecycle -o json=$(BUILD_DIR)/$(GOOS)-$(GOARCH)/lifecycle/lifecycle.sbom.syft.json -o spdx-json=$(BUILD_DIR)/$(GOOS)-$(GOARCH)/lifecycle/lifecycle.sbom.spdx.json -o cyclonedx-json=$(BUILD_DIR)/$(GOOS)-$(GOARCH)/lifecycle/lifecycle.sbom.cdx.json
+	syft $(BUILD_DIR)/$(GOOS)-$(GOARCH)/lifecycle/launcher -o json=$(BUILD_DIR)/$(GOOS)-$(GOARCH)/lifecycle/launcher.sbom.syft.json -o spdx-json=$(BUILD_DIR)/$(GOOS)-$(GOARCH)/lifecycle/launcher.sbom.spdx.json -o cyclonedx-json=$(BUILD_DIR)/$(GOOS)-$(GOARCH)/lifecycle/launcher.sbom.cdx.json
+
 install-syft:
 	@echo "> Installing syft..."
 	curl -sSfL https://raw.githubusercontent.com/anchore/syft/main/install.sh | sh -s -- -b /usr/local/bin
@@ -335,7 +386,7 @@ unit: out
 unit: UNIT_PACKAGES=$(shell $(GOCMD) list ./... | grep -v acceptance)
 unit: format lint tidy install-yj
 	@echo "> Running unit tests..."
-	$(GOTEST) $(GOTESTFLAGS) -v -count=1 $(UNIT_PACKAGES)
+	$(GOTEST) $(GOTESTFLAGS) -count=1 $(UNIT_PACKAGES) -v
 
 out:
 	@mkdir out || (exit 0)
@@ -349,7 +400,7 @@ clean:
 	@echo "> Cleaning workspace..."
 	rm -rf $(BUILD_DIR)
 
-package:  generate-sbom package-linux-amd64 package-linux-arm64 package-windows-amd64 package-linux-s390x
+package:  generate-sbom package-linux-amd64 package-linux-arm64 package-windows-amd64 package-linux-s390x package-freebsd-amd64
 
 package-linux-amd64: GOOS:=linux
 package-linux-amd64: GOARCH:=amd64
@@ -378,6 +429,15 @@ package-linux-s390x:
 	@echo "> Packaging lifecycle for $(GOOS)/$(GOARCH)..."
 	$(GOCMD) run $(PACKAGER) --inputDir $(INPUT_DIR) -archivePath $(ARCHIVE_PATH) -descriptorPath $(LIFECYCLE_DESCRIPTOR_PATH) -version $(LIFECYCLE_VERSION)
 
+package-freebsd-amd64: GOOS:=freebsd
+package-freebsd-amd64: GOARCH:=amd64
+package-freebsd-amd64: INPUT_DIR:=$(BUILD_DIR)$/$(GOOS)-$(GOARCH)$/lifecycle
+package-freebsd-amd64: ARCHIVE_PATH=$(BUILD_DIR)$/lifecycle-v$(LIFECYCLE_VERSION)+$(GOOS).x86-64.tgz
+package-freebsd-amd64: PACKAGER=.$/tools$/packager$/main.go
+package-freebsd-amd64:
+	@echo "> Packaging lifecycle for $(GOOS)/$(GOARCH)..."
+	$(GOCMD) run $(PACKAGER) --inputDir $(INPUT_DIR) -archivePath $(ARCHIVE_PATH) -descriptorPath $(LIFECYCLE_DESCRIPTOR_PATH) -version $(LIFECYCLE_VERSION)
+
 package-windows-amd64: GOOS:=windows
 package-windows-amd64: GOARCH:=amd64
 package-windows-amd64: INPUT_DIR:=$(BUILD_DIR)$/$(GOOS)-$(GOARCH)$/lifecycle

acceptance/testdata/extender/container/cnb/buildpacks/samples_hello-extensions/0.0.1/bin/build

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 echo "Hello Extensions buildpack"
 

acceptance/testdata/launcher/exec.d/fd_unix.go

@@ -1,5 +1,5 @@
-//go:build linux || darwin
-// +build linux darwin
+//go:build linux || darwin || freebsd
+// +build linux darwin freebsd
 
 package main
 

acceptance/variables_unix.go

@@ -1,5 +1,5 @@
-//go:build linux || darwin
-// +build linux darwin
+//go:build linux || darwin || freebsd
+// +build linux darwin freebsd
 
 package acceptance
 

archive/tar_unix.go

@@ -1,5 +1,5 @@
-//go:build linux || darwin
-// +build linux darwin
+//go:build linux || darwin || freebsd
+// +build linux darwin freebsd
 
 package archive
 

buildpack/testdata/buildpack/bin/build

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 set -euo pipefail
 

buildpack/testdata/buildpack/bin/detect

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 set -euo pipefail
 

buildpack/testdata/extension/bin/detect

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 set -euo pipefail
 

buildpack/testdata/extension/bin/generate

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 set -euo pipefail
 

internal/extend/kaniko/dockerfile_applier_darwin.go → internal/extend/kaniko/dockerfile_applier_unix.go

@@ -1,4 +1,4 @@
-//go:build darwin
+//go:build darwin || freebsd
 
 package kaniko
 

internal/fsutil/os_detection_linux_test.go → internal/fsutil/os_detection_linuxbsd_test.go

@@ -1,5 +1,5 @@
-//go:build linux
-// +build linux
+//go:build linux || freebsd
+// +build linux freebsd
 
 package fsutil_test
 

internal/path/defaults_unix.go

@@ -1,5 +1,5 @@
-//go:build linux || darwin
-// +build linux darwin
+//go:build linux || darwin || freebsd
+// +build linux darwin freebsd
 
 package path
 

launch/bash.go

@@ -3,6 +3,8 @@ package launch
 import (
 	"fmt"
 
+	"runtime"
+
 	"github.com/pkg/errors"
 )
 
@@ -32,7 +34,11 @@ func (b *BashShell) Launch(proc ShellProcess) error {
 		bashCommand = bashCommandWithTokens(len(proc.Args) + 1)
 	}
 	launcher += bashCommand
-	if err := b.Exec("/bin/bash", append([]string{
+	bashPath := "/bin/bash"
+	if runtime.GOOS == "freebsd" {
+		bashPath = "/usr/local/bin/bash"
+	}
+	if err := b.Exec(bashPath, append([]string{
 		"bash", "-c",
 		launcher, proc.Caller, proc.Command,
 	}, proc.Args...), proc.Env); err != nil {