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Merge pull request #8 from skip77/main
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6e2ed2eb23
@ -855,9 +855,9 @@ func processRPMTagless(pd *data.ProcessData) (*srpmprocpb.ProcessResponse, error
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// get name-version-release of tagless repo, only if we're not a module repo:
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if !pd.ModuleMode {
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nvrString := getVersionFromSpec(md.Name, localPath, pd.Version)
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if nvrString == "" {
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return nil, fmt.Errorf("Error using rpm or rpmbuild to build SRPM and determine version info! (tagless mode)")
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nvrString, err := getVersionFromSpec(localPath, pd.Version)
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if err != nil {
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return nil, err
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}
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// Set version and release fields we extracted (name|version|release are separated by pipes)
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@ -1176,112 +1176,47 @@ func convertMetaData(pkgName string, localRepo string) bool {
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// - create a "dummy" SRPM (using dummy sources files we use to populate tarballs from lookaside)
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// - extract RPM version info from that SRPM, and return it
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// If we are in tagless mode, we need to get a package version somehow!
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func getVersionFromSpec(pkgName string, localRepo string, majorVersion int) string {
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func getVersionFromSpec(localRepo string, majorVersion int) (string, error) {
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// Make sure we have "rpm" and "rpmbuild" and "cp" available in our PATH. Otherwise, this won't work:
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_, err := exec.LookPath("rpm")
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_, err := exec.LookPath("rpmspec")
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if err != nil {
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return ""
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return "", fmt.Errorf("Could not find rpmspec program in PATH")
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}
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_, err = exec.LookPath("rpmbuild")
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// Read the first file from SPECS/ to get our spec file
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// (there should only be one file - we check that it ends in ".spec" just to be sure!)
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lsTmp, err := ioutil.ReadDir(fmt.Sprintf("%s/SPECS/", localRepo))
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if err != nil {
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return ""
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return "", err
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}
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specFile := lsTmp[0].Name()
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if !strings.HasSuffix(specFile, ".spec") {
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return "", fmt.Errorf("First file found in SPECS/ is not a .spec file! Check the SPECS/ directory in the repo?")
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}
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_, err = exec.LookPath("cp")
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if err != nil {
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return ""
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// Call the rpmspec binary to extract the version-release info out of it, and tack on ".el<VERSION>" at the end:
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cmdArgs := []string{
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"--srpm",
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fmt.Sprintf(`--define=dist .el%d`, majorVersion),
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"-q",
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"--queryformat",
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`%{NAME}|%{VERSION}|%{RELEASE}\n`,
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fmt.Sprintf("%s/SPECS/%s", localRepo, specFile),
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}
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// create separate temp folder space to do our RPM work - we don't want to accidentally contaminate the main Git area:
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rpmBuildPath := fmt.Sprintf("%s_rpm", localRepo)
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os.Mkdir(rpmBuildPath, 0o755)
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// Copy SOURCES/ and SPECS/ into the temp rpmbuild directory recursively
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// Yes, we could create or import an elaborate Go-native way to do this, but damnit this is easier:
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cmdArgs := strings.Fields(fmt.Sprintf("cp -rp %s/SOURCES %s/SPECS %s/", localRepo, localRepo, rpmBuildPath))
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if err := exec.Command(cmdArgs[0], cmdArgs[1:]...).Run(); err != nil {
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log.Println(err)
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return ""
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}
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// Loop through .<package>.metadata and get the file names we need to make our SRPM:
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lookAside, err := os.Open(fmt.Sprintf("%s/.%s.metadata", localRepo, pkgName))
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if err != nil {
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log.Println(err)
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return ""
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}
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// Split file into lines and start processing:
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scanner := bufio.NewScanner(lookAside)
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scanner.Split(bufio.ScanLines)
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// loop through each line, and:
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// - isolate the SOURCES/filename entry
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// - write out a dummy file of the same name to rpmBuildPath/SOURCES
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for scanner.Scan() {
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// lookaside source is always the 2nd part of the line (after the long SHA sum)
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srcFile := strings.Fields(scanner.Text())[1]
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// write a dummy file of the same name into the rpmbuild SOURCES/ directory:
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dummyFile, err := os.OpenFile(fmt.Sprintf("%s/%s", rpmBuildPath, srcFile), os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0o644)
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if err != nil {
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return ""
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}
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writer := bufio.NewWriter(dummyFile)
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_, _ = writer.WriteString("This is a dummy lookaside file generated by srpmproc. It is only needed to get a working SRPM and extract version information. Please disregard\n")
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writer.Flush()
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dummyFile.Close()
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}
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lookAside.Close()
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// Now, call rpmbuild to produce the dummy src file:
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// Example: rpmbuild --define "_topdir /tmp/srpmproctmp_httpd1988142783_rpm" -bs /tmp/srpmproctmp_httpd1988142783_rpm/SPECS/*.spec
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cmd := exec.Command("rpmbuild", fmt.Sprintf(`--define=_topdir %s`, rpmBuildPath), fmt.Sprintf(`--define=dist .el%d`, majorVersion), "-bs", fmt.Sprintf("%s/SPECS/%s.spec", rpmBuildPath, pkgName))
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if err := cmd.Run(); err != nil {
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log.Println(err)
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return ""
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}
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// Read the first file from the SRPMS/ folder in rpmBuildPath. It should be the SRPM that rpmbuild produced above
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// (there should only be one file - we check that it ends in ".rpm" just to be sure!)
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lsTmp, err := ioutil.ReadDir(fmt.Sprintf("%s/SRPMS/", rpmBuildPath))
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if err != nil {
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log.Println(err)
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return ""
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}
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srpmFile := lsTmp[0].Name()
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if !strings.HasSuffix(srpmFile, ".rpm") {
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log.Println("Error, file found in dummy SRPMS directory did not have an .rpm extension! Perhaps rpmbuild didn't produce a proper source RPM?")
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return ""
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}
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// Call the rpm binary to extract the version-release info out of it, and tack on ".el<VERSION>" at the end:
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cmd = exec.Command("rpm", "-qp", "--qf", `%{NAME}|%{VERSION}|%{RELEASE}\n`, fmt.Sprintf("%s/SRPMS/%s", rpmBuildPath, srpmFile))
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cmd := exec.Command("rpmspec", cmdArgs...)
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nvrTmp, err := cmd.CombinedOutput()
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if err != nil {
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log.Println("Error running rpm command to extract temporary SRPM name-version-release identifiers.")
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log.Println("rpmbuild output: ", string(nvrTmp))
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log.Println("rpmbuild command: ", cmd.String())
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return ""
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return "", fmt.Errorf("Error running rpmspec command to determine RPM name-version-release identifier. \nCommand attempted: %s \nCommand output: %s", cmd.String(), string(nvrTmp))
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}
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// Pull first line of the rpm command's output to get the name-version-release number (there should only be 1 line)
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// Pull first line of the version output to get the name-version-release number (there should only be 1 line)
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nvr := string(nvrTmp)
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nvr = strings.Fields(nvr)[0]
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// Clean up: delete the temporary directory
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if err := os.RemoveAll(rpmBuildPath); err != nil {
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log.Printf("Error cleaning up temporary RPM directory %s . Non-fatal, continuing anyway...\n", rpmBuildPath)
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}
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// return name-version-release string we derived:
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log.Printf("Derived NVR %s from tagless repo via temporary SRPM build\n", nvr)
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return nvr
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log.Printf("Derived NVR %s from tagless repo via rpmspec command\n", nvr)
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return nvr, nil
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}
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// We need to loop through the lookaside blob files ("SourcesToIgnore"),
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