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Add automatic ELF binary stripping

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EnumDev
2025-10-27 22:11:02 +02:00
parent 70ba64ca6b
commit 444b2032e2
2 changed files with 80 additions and 6 deletions
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src/bpmlib/compilation.go
+78 -6
View File
@@ -6,9 +6,11 @@ import (
"errors"
"fmt"
"io"
"io/fs"
"os"
"os/exec"
"path"
"path/filepath"
"slices"
"strconv"
"strings"
@@ -143,8 +145,8 @@ func CompileSourcePackage(archiveFilename, outputDirectory string, skipChecks, k
"set -a\n"+ // Source and export functions and variables in source.sh script
". \"${BPM_WORKDIR}\"/source.sh\n"+
"set +a\n"+
"[[ $(type -t prepare) == \"function\" ]] && { echo \"Running prepare() function\"; bash -e -c 'cd \"$BPM_WORKDIR\" && prepare' || exit 1; }\n"+ // Run prepare() function if it exists
"[[ $(type -t build) == \"function\" ]] && { echo \"Running build() function\"; bash -e -c 'cd \"$BPM_SOURCE\" && build' || exit 1; }\n"+ // Run build() function if it exists
"[[ $(type -t prepare) == \"function\" ]] && { echo \"Running prepare() function...\"; bash -e -c 'cd \"$BPM_WORKDIR\" && prepare' || exit 1; }\n"+ // Run prepare() function if it exists
"[[ $(type -t build) == \"function\" ]] && { echo \"Running build() function...\"; bash -e -c 'cd \"$BPM_SOURCE\" && build' || exit 1; }\n"+ // Run build() function if it exists
"exit 0")
cmd.Dir = tempDirectory
cmd.Stdout = os.Stdout
@@ -165,7 +167,7 @@ func CompileSourcePackage(archiveFilename, outputDirectory string, skipChecks, k
"set -a\n"+ // Source and export functions and variables in source.sh script
". \"${BPM_WORKDIR}\"/source.sh\n"+
"set +a\n"+
"[[ $(type -t check) == \"function\" ]] && { echo \"Running check() function\"; bash -e -c 'cd \"$BPM_SOURCE\" && check' || exit 1; }\n"+ // Run check() function if it exists
"[[ $(type -t check) == \"function\" ]] && { echo \"Running check() function...\"; bash -e -c 'cd \"$BPM_SOURCE\" && check' || exit 1; }\n"+ // Run check() function if it exists
"exit 0")
cmd.Dir = tempDirectory
cmd.Stdout = os.Stdout
@@ -215,9 +217,8 @@ func CompileSourcePackage(archiveFilename, outputDirectory string, skipChecks, k
"set -a\n"+ // Source and export functions and variables in source.sh script
". \"${BPM_WORKDIR}\"/source.sh\n"+
"set +a\n"+
"echo \"Running "+packageFunctionName+"() function\"\n"+
"( cd \"$BPM_SOURCE\" && fakeroot -s \"$BPM_WORKDIR\"/fakeroot_file bash -e -c '"+packageFunctionName+"' ) || exit 1\n"+ // Run package() function
"fakeroot -i \"$BPM_WORKDIR\"/fakeroot_file find \"$BPM_OUTPUT\" -mindepth 1 -printf \"%P %#m %U %G %s\\n\" > \"$BPM_WORKDIR\"/pkg.files") // Create package file list
"echo \"Running "+packageFunctionName+"() function...\"\n"+
"( cd \"$BPM_SOURCE\" && fakeroot -s \"$BPM_WORKDIR\"/fakeroot_file bash -e -c '"+packageFunctionName+"' ) || exit 1\n") // Run package() function
cmd.Dir = tempDirectory
cmd.Stdout = os.Stdout
@@ -232,7 +233,77 @@ func CompileSourcePackage(archiveFilename, outputDirectory string, skipChecks, k
return nil, err
}
// Strip all ELF binaries
if !slices.Contains(pkg.Options, "nostrip") {
fmt.Println("Stripping ELF binaries...")
err = filepath.WalkDir(path.Join(tempDirectory, "output_"+pkg.Name), func(path string, d fs.DirEntry, err error) error {
cmd = exec.Command("file", "-bi", path)
cmd.Stderr = os.Stderr
output, err := cmd.Output()
if err != nil {
return err
}
mimetype := strings.Split(string(output), ";")[0]
if strings.HasPrefix(mimetype, "application/x-executable") {
cmd := exec.Command("strip", path)
cmd.Stderr = os.Stderr
err = cmd.Run()
if err != nil {
return err
}
if verbose {
fmt.Printf("Stripped %s (%s)\n", path, mimetype)
}
} else if strings.HasPrefix(mimetype, "application/x-pie-executable") || strings.HasPrefix(mimetype, "application/x-sharedlib") {
cmd := exec.Command("strip", "--strip-unneeded", path)
cmd.Stderr = os.Stderr
err = cmd.Run()
if err != nil {
return err
}
if verbose {
fmt.Printf("Stripped %s (%s)\n", path, mimetype)
}
} else if strings.HasPrefix(mimetype, "application/x-archive") {
cmd := exec.Command("strip", "--strip-debug", path)
cmd.Stderr = os.Stderr
err = cmd.Run()
if err != nil {
return err
}
if verbose {
fmt.Printf("Stripped %s (%s)\n", path, mimetype)
}
}
return nil
})
if err != nil {
return nil, err
}
}
// Generate package file list
fmt.Println("Generating package file list...")
cmd = exec.Command("bash", "-c", "fakeroot -i \"$BPM_WORKDIR\"/fakeroot_file find \"$BPM_OUTPUT\" -mindepth 1 -printf \"%P %#m %U %G %s\\n\" > \"$BPM_WORKDIR\"/pkg.files")
cmd.Dir = tempDirectory
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
cmd.Env = append(env, "BPM_OUTPUT="+path.Join(tempDirectory, "output_"+pkg.Name))
if os.Getuid() == 0 {
cmd.SysProcAttr = &syscall.SysProcAttr{}
cmd.SysProcAttr.Credential = &syscall.Credential{Uid: uint32(uid), Gid: uint32(gid)}
}
err = cmd.Run()
if err != nil {
return nil, err
}
// Create gzip-compressed archive for the package files
fmt.Println("Generating compressed file archive...")
cmd = exec.Command("bash", "-c", fmt.Sprintf("find %s -printf \"%%P\\n\" | fakeroot -i %s/fakeroot_file tar -czf files.tar.gz --no-recursion -C %s -T -", "output_"+pkg.Name, tempDirectory, "output_"+pkg.Name))
cmd.Dir = tempDirectory
cmd.Stdout = os.Stdout
@@ -286,6 +357,7 @@ func CompileSourcePackage(archiveFilename, outputDirectory string, skipChecks, k
bpmArchiveFiles = append(bpmArchiveFiles, packageScripts...) // Package scripts
// Create final BPM archive
fmt.Println("Generating final BPM archive...")
cmd = exec.Command("bash", "-c", "tar -cf final-archive.bpm --owner=0 --group=0 -C \"$BPM_WORKDIR\" "+strings.Join(bpmArchiveFiles, " "))
cmd.Dir = tempDirectory
cmd.Stdout = os.Stdout
src/bpmlib/packages.go
+2
View File
@@ -43,6 +43,7 @@ type PackageInfo struct {
Conflicts []string `yaml:"conflicts,omitempty"`
Replaces []string `yaml:"replaces,omitempty"`
Provides []string `yaml:"provides,omitempty"`
Options []string `yaml:"options,omitempty"`
Downloads []PackageDownload `yaml:"downloads,omitempty"`
SplitPackages []*PackageInfo `yaml:"split_packages,omitempty"`
}
@@ -434,6 +435,7 @@ func ReadPackageInfo(contents string) (*PackageInfo, error) {
Conflicts: make([]string, 0),
Replaces: make([]string, 0),
Provides: make([]string, 0),
Options: make([]string, 0),
Downloads: make([]PackageDownload, 0),
SplitPackages: make([]*PackageInfo, 0),
}