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How to use String method of vcs Package

Best Syzkaller code snippet using vcs.String

vcs.go

Source:vcs.go

...161		return "", err162	}163	out := strings.TrimSpace(string(outb))164	var repoURL *url.URL165	if m := scpSyntaxRe.FindStringSubmatch(out); m != nil {166		// Match SCP-like syntax and convert it to a URL.167		// Eg, "git@github.com:user/repo" becomes168		// "ssh://git@github.com/user/repo".169		repoURL = &url.URL{170			Scheme: "ssh",171			User:   url.User(m[1]),172			Host:   m[2],173			Path:   m[3],174		}175	} else {176		repoURL, err = url.Parse(out)177		if err != nil {178			return "", err179		}180	}181	// Iterate over insecure schemes too, because this function simply182	// reports the state of the repo. If we can't see insecure schemes then183	// we can't report the actual repo URL.184	for _, s := range vcsGit.scheme {185		if repoURL.Scheme == s {186			return repoURL.String(), nil187		}188	}189	return "", errParse190}191// vcsBzr describes how to use Bazaar.192var vcsBzr = &vcsCmd{193	name: "Bazaar",194	cmd:  "bzr",195	createCmd: []string{"branch {repo} {dir}"},196	// Without --overwrite bzr will not pull tags that changed.197	// Replace by --overwrite-tags after http://pad.lv/681792 goes in.198	downloadCmd: []string{"pull --overwrite"},199	tagCmd:         []tagCmd{{"tags", `^(\S+)`}},200	tagSyncCmd:     []string{"update -r {tag}"},201	tagSyncDefault: []string{"update -r revno:-1"},202	scheme:      []string{"https", "http", "bzr", "bzr+ssh"},203	pingCmd:     "info {scheme}://{repo}",204	remoteRepo:  bzrRemoteRepo,205	resolveRepo: bzrResolveRepo,206}207func bzrRemoteRepo(vcsBzr *vcsCmd, rootDir string) (remoteRepo string, err error) {208	outb, err := vcsBzr.runOutput(rootDir, "config parent_location")209	if err != nil {210		return "", err211	}212	return strings.TrimSpace(string(outb)), nil213}214func bzrResolveRepo(vcsBzr *vcsCmd, rootDir, remoteRepo string) (realRepo string, err error) {215	outb, err := vcsBzr.runOutput(rootDir, "info "+remoteRepo)216	if err != nil {217		return "", err218	}219	out := string(outb)220	// Expect:221	// ...222	//   (branch root|repository branch): <URL>223	// ...224	found := false225	for _, prefix := range []string{"\n  branch root: ", "\n  repository branch: "} {226		i := strings.Index(out, prefix)227		if i >= 0 {228			out = out[i+len(prefix):]229			found = true230			break231		}232	}233	if !found {234		return "", fmt.Errorf("unable to parse output of bzr info")235	}236	i := strings.Index(out, "\n")237	if i < 0 {238		return "", fmt.Errorf("unable to parse output of bzr info")239	}240	out = out[:i]241	return strings.TrimSpace(out), nil242}243// vcsSvn describes how to use Subversion.244var vcsSvn = &vcsCmd{245	name: "Subversion",246	cmd:  "svn",247	createCmd:   []string{"checkout {repo} {dir}"},248	downloadCmd: []string{"update"},249	// There is no tag command in subversion.250	// The branch information is all in the path names.251	scheme:     []string{"https", "http", "svn", "svn+ssh"},252	pingCmd:    "info {scheme}://{repo}",253	remoteRepo: svnRemoteRepo,254}255func svnRemoteRepo(vcsSvn *vcsCmd, rootDir string) (remoteRepo string, err error) {256	outb, err := vcsSvn.runOutput(rootDir, "info")257	if err != nil {258		return "", err259	}260	out := string(outb)261	// Expect:262	//263	//	 ...264	// 	URL: <URL>265	// 	...266	//267	// Note that we're not using the Repository Root line,268	// because svn allows checking out subtrees.269	// The URL will be the URL of the subtree (what we used with 'svn co')270	// while the Repository Root may be a much higher parent.271	i := strings.Index(out, "\nURL: ")272	if i < 0 {273		return "", fmt.Errorf("unable to parse output of svn info")274	}275	out = out[i+len("\nURL: "):]276	i = strings.Index(out, "\n")277	if i < 0 {278		return "", fmt.Errorf("unable to parse output of svn info")279	}280	out = out[:i]281	return strings.TrimSpace(out), nil282}283// fossilRepoName is the name go get associates with a fossil repository. In the284// real world the file can be named anything.285const fossilRepoName = ".fossil"286// vcsFossil describes how to use Fossil (fossil-scm.org)287var vcsFossil = &vcsCmd{288	name: "Fossil",289	cmd:  "fossil",290	createCmd:   []string{"-go-internal-mkdir {dir} clone {repo} " + filepath.Join("{dir}", fossilRepoName), "-go-internal-cd {dir} open .fossil"},291	downloadCmd: []string{"up"},292	tagCmd:         []tagCmd{{"tag ls", `(.*)`}},293	tagSyncCmd:     []string{"up tag:{tag}"},294	tagSyncDefault: []string{"up trunk"},295	scheme:     []string{"https", "http"},296	remoteRepo: fossilRemoteRepo,297}298func fossilRemoteRepo(vcsFossil *vcsCmd, rootDir string) (remoteRepo string, err error) {299	out, err := vcsFossil.runOutput(rootDir, "remote-url")300	if err != nil {301		return "", err302	}303	return strings.TrimSpace(string(out)), nil304}305func (v *vcsCmd) String() string {306	return v.name307}308// run runs the command line cmd in the given directory.309// keyval is a list of key, value pairs. run expands310// instances of {key} in cmd into value, but only after311// splitting cmd into individual arguments.312// If an error occurs, run prints the command line and the313// command's combined stdout+stderr to standard error.314// Otherwise run discards the command's output.315func (v *vcsCmd) run(dir string, cmd string, keyval ...string) error {316	_, err := v.run1(dir, cmd, keyval, true)317	return err318}319// runVerboseOnly is like run but only generates error output to standard error in verbose mode.320func (v *vcsCmd) runVerboseOnly(dir string, cmd string, keyval ...string) error {321	_, err := v.run1(dir, cmd, keyval, false)322	return err323}324// runOutput is like run but returns the output of the command.325func (v *vcsCmd) runOutput(dir string, cmd string, keyval ...string) ([]byte, error) {326	return v.run1(dir, cmd, keyval, true)327}328// run1 is the generalized implementation of run and runOutput.329func (v *vcsCmd) run1(dir string, cmdline string, keyval []string, verbose bool) ([]byte, error) {330	m := make(map[string]string)331	for i := 0; i < len(keyval); i += 2 {332		m[keyval[i]] = keyval[i+1]333	}334	args := strings.Fields(cmdline)335	for i, arg := range args {336		args[i] = expand(m, arg)337	}338	if len(args) >= 2 && args[0] == "-go-internal-mkdir" {339		var err error340		if filepath.IsAbs(args[1]) {341			err = os.Mkdir(args[1], os.ModePerm)342		} else {343			err = os.Mkdir(filepath.Join(dir, args[1]), os.ModePerm)344		}345		if err != nil {346			return nil, err347		}348		args = args[2:]349	}350	if len(args) >= 2 && args[0] == "-go-internal-cd" {351		if filepath.IsAbs(args[1]) {352			dir = args[1]353		} else {354			dir = filepath.Join(dir, args[1])355		}356		args = args[2:]357	}358	_, err := exec.LookPath(v.cmd)359	if err != nil {360		fmt.Fprintf(os.Stderr,361			"go: missing %s command. See https://golang.org/s/gogetcmd\n",362			v.name)363		return nil, err364	}365	cmd := exec.Command(v.cmd, args...)366	cmd.Dir = dir367	cmd.Env = base.EnvForDir(cmd.Dir, os.Environ())368	if cfg.BuildX {369		fmt.Fprintf(os.Stderr, "cd %s\n", dir)370		fmt.Fprintf(os.Stderr, "%s %s\n", v.cmd, strings.Join(args, " "))371	}372	out, err := cmd.Output()373	if err != nil {374		if verbose || cfg.BuildV {375			fmt.Fprintf(os.Stderr, "# cd %s; %s %s\n", dir, v.cmd, strings.Join(args, " "))376			if ee, ok := err.(*exec.ExitError); ok && len(ee.Stderr) > 0 {377				os.Stderr.Write(ee.Stderr)378			} else {379				fmt.Fprintf(os.Stderr, err.Error())380			}381		}382	}383	return out, err384}385// ping pings to determine scheme to use.386func (v *vcsCmd) ping(scheme, repo string) error {387	return v.runVerboseOnly(".", v.pingCmd, "scheme", scheme, "repo", repo)388}389// create creates a new copy of repo in dir.390// The parent of dir must exist; dir must not.391func (v *vcsCmd) create(dir, repo string) error {392	for _, cmd := range v.createCmd {393		if err := v.run(".", cmd, "dir", dir, "repo", repo); err != nil {394			return err395		}396	}397	return nil398}399// download downloads any new changes for the repo in dir.400func (v *vcsCmd) download(dir string) error {401	for _, cmd := range v.downloadCmd {402		if err := v.run(dir, cmd); err != nil {403			return err404		}405	}406	return nil407}408// tags returns the list of available tags for the repo in dir.409func (v *vcsCmd) tags(dir string) ([]string, error) {410	var tags []string411	for _, tc := range v.tagCmd {412		out, err := v.runOutput(dir, tc.cmd)413		if err != nil {414			return nil, err415		}416		re := regexp.MustCompile(`(?m-s)` + tc.pattern)417		for _, m := range re.FindAllStringSubmatch(string(out), -1) {418			tags = append(tags, m[1])419		}420	}421	return tags, nil422}423// tagSync syncs the repo in dir to the named tag,424// which either is a tag returned by tags or is v.tagDefault.425func (v *vcsCmd) tagSync(dir, tag string) error {426	if v.tagSyncCmd == nil {427		return nil428	}429	if tag != "" {430		for _, tc := range v.tagLookupCmd {431			out, err := v.runOutput(dir, tc.cmd, "tag", tag)432			if err != nil {433				return err434			}435			re := regexp.MustCompile(`(?m-s)` + tc.pattern)436			m := re.FindStringSubmatch(string(out))437			if len(m) > 1 {438				tag = m[1]439				break440			}441		}442	}443	if tag == "" && v.tagSyncDefault != nil {444		for _, cmd := range v.tagSyncDefault {445			if err := v.run(dir, cmd); err != nil {446				return err447			}448		}449		return nil450	}451	for _, cmd := range v.tagSyncCmd {452		if err := v.run(dir, cmd, "tag", tag); err != nil {453			return err454		}455	}456	return nil457}458// A vcsPath describes how to convert an import path into a459// version control system and repository name.460type vcsPath struct {461	prefix string                              // prefix this description applies to462	re     string                              // pattern for import path463	repo   string                              // repository to use (expand with match of re)464	vcs    string                              // version control system to use (expand with match of re)465	check  func(match map[string]string) error // additional checks466	ping   bool                                // ping for scheme to use to download repo467	regexp *regexp.Regexp // cached compiled form of re468}469// vcsFromDir inspects dir and its parents to determine the470// version control system and code repository to use.471// On return, root is the import path472// corresponding to the root of the repository.473func vcsFromDir(dir, srcRoot string) (vcs *vcsCmd, root string, err error) {474	// Clean and double-check that dir is in (a subdirectory of) srcRoot.475	dir = filepath.Clean(dir)476	srcRoot = filepath.Clean(srcRoot)477	if len(dir) <= len(srcRoot) || dir[len(srcRoot)] != filepath.Separator {478		return nil, "", fmt.Errorf("directory %q is outside source root %q", dir, srcRoot)479	}480	var vcsRet *vcsCmd481	var rootRet string482	origDir := dir483	for len(dir) > len(srcRoot) {484		for _, vcs := range vcsList {485			if _, err := os.Stat(filepath.Join(dir, "."+vcs.cmd)); err == nil {486				root := filepath.ToSlash(dir[len(srcRoot)+1:])487				// Record first VCS we find, but keep looking,488				// to detect mistakes like one kind of VCS inside another.489				if vcsRet == nil {490					vcsRet = vcs491					rootRet = root492					continue493				}494				// Allow .git inside .git, which can arise due to submodules.495				if vcsRet == vcs && vcs.cmd == "git" {496					continue497				}498				// Otherwise, we have one VCS inside a different VCS.499				return nil, "", fmt.Errorf("directory %q uses %s, but parent %q uses %s",500					filepath.Join(srcRoot, rootRet), vcsRet.cmd, filepath.Join(srcRoot, root), vcs.cmd)501			}502		}503		// Move to parent.504		ndir := filepath.Dir(dir)505		if len(ndir) >= len(dir) {506			// Shouldn't happen, but just in case, stop.507			break508		}509		dir = ndir510	}511	if vcsRet != nil {512		return vcsRet, rootRet, nil513	}514	return nil, "", fmt.Errorf("directory %q is not using a known version control system", origDir)515}516// checkNestedVCS checks for an incorrectly-nested VCS-inside-VCS517// situation for dir, checking parents up until srcRoot.518func checkNestedVCS(vcs *vcsCmd, dir, srcRoot string) error {519	if len(dir) <= len(srcRoot) || dir[len(srcRoot)] != filepath.Separator {520		return fmt.Errorf("directory %q is outside source root %q", dir, srcRoot)521	}522	otherDir := dir523	for len(otherDir) > len(srcRoot) {524		for _, otherVCS := range vcsList {525			if _, err := os.Stat(filepath.Join(otherDir, "."+otherVCS.cmd)); err == nil {526				// Allow expected vcs in original dir.527				if otherDir == dir && otherVCS == vcs {528					continue529				}530				// Allow .git inside .git, which can arise due to submodules.531				if otherVCS == vcs && vcs.cmd == "git" {532					continue533				}534				// Otherwise, we have one VCS inside a different VCS.535				return fmt.Errorf("directory %q uses %s, but parent %q uses %s", dir, vcs.cmd, otherDir, otherVCS.cmd)536			}537		}538		// Move to parent.539		newDir := filepath.Dir(otherDir)540		if len(newDir) >= len(otherDir) {541			// Shouldn't happen, but just in case, stop.542			break543		}544		otherDir = newDir545	}546	return nil547}548// RepoRoot describes the repository root for a tree of source code.549type RepoRoot struct {550	Repo     string // repository URL, including scheme551	Root     string // import path corresponding to root of repo552	IsCustom bool   // defined by served <meta> tags (as opposed to hard-coded pattern)553	VCS      string // vcs type ("mod", "git", ...)554	vcs *vcsCmd // internal: vcs command access555}556var httpPrefixRE = regexp.MustCompile(`^https?:`)557// ModuleMode specifies whether to prefer modules when looking up code sources.558type ModuleMode int559const (560	IgnoreMod ModuleMode = iota561	PreferMod562)563// RepoRootForImportPath analyzes importPath to determine the564// version control system, and code repository to use.565func RepoRootForImportPath(importPath string, mod ModuleMode, security web.SecurityMode) (*RepoRoot, error) {566	rr, err := repoRootFromVCSPaths(importPath, "", security, vcsPaths)567	if err == errUnknownSite {568		rr, err = repoRootForImportDynamic(importPath, mod, security)569		if err != nil {570			err = fmt.Errorf("unrecognized import path %q (%v)", importPath, err)571		}572	}573	if err != nil {574		rr1, err1 := repoRootFromVCSPaths(importPath, "", security, vcsPathsAfterDynamic)575		if err1 == nil {576			rr = rr1577			err = nil578		}579	}580	// Should have been taken care of above, but make sure.581	if err == nil && strings.Contains(importPath, "...") && strings.Contains(rr.Root, "...") {582		// Do not allow wildcards in the repo root.583		rr = nil584		err = fmt.Errorf("cannot expand ... in %q", importPath)585	}586	return rr, err587}588var errUnknownSite = errors.New("dynamic lookup required to find mapping")589// repoRootFromVCSPaths attempts to map importPath to a repoRoot590// using the mappings defined in vcsPaths.591// If scheme is non-empty, that scheme is forced.592func repoRootFromVCSPaths(importPath, scheme string, security web.SecurityMode, vcsPaths []*vcsPath) (*RepoRoot, error) {593	// A common error is to use https://packagepath because that's what594	// hg and git require. Diagnose this helpfully.595	if loc := httpPrefixRE.FindStringIndex(importPath); loc != nil {596		// The importPath has been cleaned, so has only one slash. The pattern597		// ignores the slashes; the error message puts them back on the RHS at least.598		return nil, fmt.Errorf("%q not allowed in import path", importPath[loc[0]:loc[1]]+"//")599	}600	for _, srv := range vcsPaths {601		if !strings.HasPrefix(importPath, srv.prefix) {602			continue603		}604		m := srv.regexp.FindStringSubmatch(importPath)605		if m == nil {606			if srv.prefix != "" {607				return nil, fmt.Errorf("invalid %s import path %q", srv.prefix, importPath)608			}609			continue610		}611		// Build map of named subexpression matches for expand.612		match := map[string]string{613			"prefix": srv.prefix,614			"import": importPath,615		}616		for i, name := range srv.regexp.SubexpNames() {617			if name != "" && match[name] == "" {618				match[name] = m[i]619			}620		}621		if srv.vcs != "" {622			match["vcs"] = expand(match, srv.vcs)623		}624		if srv.repo != "" {625			match["repo"] = expand(match, srv.repo)626		}627		if srv.check != nil {628			if err := srv.check(match); err != nil {629				return nil, err630			}631		}632		vcs := vcsByCmd(match["vcs"])633		if vcs == nil {634			return nil, fmt.Errorf("unknown version control system %q", match["vcs"])635		}636		if srv.ping {637			if scheme != "" {638				match["repo"] = scheme + "://" + match["repo"]639			} else {640				for _, scheme := range vcs.scheme {641					if security == web.Secure && !vcs.isSecureScheme(scheme) {642						continue643					}644					if vcs.pingCmd != "" && vcs.ping(scheme, match["repo"]) == nil {645						match["repo"] = scheme + "://" + match["repo"]646						goto Found647					}648				}649				// No scheme found. Fall back to the first one.650				match["repo"] = vcs.scheme[0] + "://" + match["repo"]651			Found:652			}653		}654		rr := &RepoRoot{655			Repo: match["repo"],656			Root: match["root"],657			VCS:  vcs.cmd,658			vcs:  vcs,659		}660		return rr, nil661	}662	return nil, errUnknownSite663}664// repoRootForImportDynamic finds a *RepoRoot for a custom domain that's not665// statically known by repoRootForImportPathStatic.666//667// This handles custom import paths like "name.tld/pkg/foo" or just "name.tld".668func repoRootForImportDynamic(importPath string, mod ModuleMode, security web.SecurityMode) (*RepoRoot, error) {669	slash := strings.Index(importPath, "/")670	if slash < 0 {671		slash = len(importPath)672	}673	host := importPath[:slash]674	if !strings.Contains(host, ".") {675		return nil, errors.New("import path does not begin with hostname")676	}677	urlStr, body, err := web.GetMaybeInsecure(importPath, security)678	if err != nil {679		msg := "https fetch: %v"680		if security == web.Insecure {681			msg = "http/" + msg682		}683		return nil, fmt.Errorf(msg, err)684	}685	defer body.Close()686	imports, err := parseMetaGoImports(body, mod)687	if err != nil {688		return nil, fmt.Errorf("parsing %s: %v", importPath, err)689	}690	// Find the matched meta import.691	mmi, err := matchGoImport(imports, importPath)692	if err != nil {693		if _, ok := err.(ImportMismatchError); !ok {694			return nil, fmt.Errorf("parse %s: %v", urlStr, err)695		}696		return nil, fmt.Errorf("parse %s: no go-import meta tags (%s)", urlStr, err)697	}698	if cfg.BuildV {699		log.Printf("get %q: found meta tag %#v at %s", importPath, mmi, urlStr)700	}701	// If the import was "uni.edu/bob/project", which said the702	// prefix was "uni.edu" and the RepoRoot was "evilroot.com",703	// make sure we don't trust Bob and check out evilroot.com to704	// "uni.edu" yet (possibly overwriting/preempting another705	// non-evil student). Instead, first verify the root and see706	// if it matches Bob's claim.707	if mmi.Prefix != importPath {708		if cfg.BuildV {709			log.Printf("get %q: verifying non-authoritative meta tag", importPath)710		}711		urlStr0 := urlStr712		var imports []metaImport713		urlStr, imports, err = metaImportsForPrefix(mmi.Prefix, mod, security)714		if err != nil {715			return nil, err716		}717		metaImport2, err := matchGoImport(imports, importPath)718		if err != nil || mmi != metaImport2 {719			return nil, fmt.Errorf("%s and %s disagree about go-import for %s", urlStr0, urlStr, mmi.Prefix)720		}721	}722	if err := validateRepoRoot(mmi.RepoRoot); err != nil {723		return nil, fmt.Errorf("%s: invalid repo root %q: %v", urlStr, mmi.RepoRoot, err)724	}725	vcs := vcsByCmd(mmi.VCS)726	if vcs == nil && mmi.VCS != "mod" {727		return nil, fmt.Errorf("%s: unknown vcs %q", urlStr, mmi.VCS)728	}729	rr := &RepoRoot{730		Repo:     mmi.RepoRoot,731		Root:     mmi.Prefix,732		IsCustom: true,733		VCS:      mmi.VCS,734		vcs:      vcs,735	}736	return rr, nil737}738// validateRepoRoot returns an error if repoRoot does not seem to be739// a valid URL with scheme.740func validateRepoRoot(repoRoot string) error {741	url, err := url.Parse(repoRoot)742	if err != nil {743		return err744	}745	if url.Scheme == "" {746		return errors.New("no scheme")747	}748	return nil749}750var fetchGroup singleflight.Group751var (752	fetchCacheMu sync.Mutex753	fetchCache   = map[string]fetchResult{} // key is metaImportsForPrefix's importPrefix754)755// metaImportsForPrefix takes a package's root import path as declared in a <meta> tag756// and returns its HTML discovery URL and the parsed metaImport lines757// found on the page.758//759// The importPath is of the form "golang.org/x/tools".760// It is an error if no imports are found.761// urlStr will still be valid if err != nil.762// The returned urlStr will be of the form "https://golang.org/x/tools?go-get=1"763func metaImportsForPrefix(importPrefix string, mod ModuleMode, security web.SecurityMode) (urlStr string, imports []metaImport, err error) {764	setCache := func(res fetchResult) (fetchResult, error) {765		fetchCacheMu.Lock()766		defer fetchCacheMu.Unlock()767		fetchCache[importPrefix] = res768		return res, nil769	}770	resi, _, _ := fetchGroup.Do(importPrefix, func() (resi interface{}, err error) {771		fetchCacheMu.Lock()772		if res, ok := fetchCache[importPrefix]; ok {773			fetchCacheMu.Unlock()774			return res, nil775		}776		fetchCacheMu.Unlock()777		urlStr, body, err := web.GetMaybeInsecure(importPrefix, security)778		if err != nil {779			return setCache(fetchResult{urlStr: urlStr, err: fmt.Errorf("fetch %s: %v", urlStr, err)})780		}781		imports, err := parseMetaGoImports(body, mod)782		if err != nil {783			return setCache(fetchResult{urlStr: urlStr, err: fmt.Errorf("parsing %s: %v", urlStr, err)})784		}785		if len(imports) == 0 {786			err = fmt.Errorf("fetch %s: no go-import meta tag", urlStr)787		}788		return setCache(fetchResult{urlStr: urlStr, imports: imports, err: err})789	})790	res := resi.(fetchResult)791	return res.urlStr, res.imports, res.err792}793type fetchResult struct {794	urlStr  string // e.g. "https://foo.com/x/bar?go-get=1"795	imports []metaImport796	err     error797}798// metaImport represents the parsed <meta name="go-import"799// content="prefix vcs reporoot" /> tags from HTML files.800type metaImport struct {801	Prefix, VCS, RepoRoot string802}803// pathPrefix reports whether sub is a prefix of s,804// only considering entire path components.805func pathPrefix(s, sub string) bool {806	// strings.HasPrefix is necessary but not sufficient.807	if !strings.HasPrefix(s, sub) {808		return false809	}810	// The remainder after the prefix must either be empty or start with a slash.811	rem := s[len(sub):]812	return rem == "" || rem[0] == '/'813}814// A ImportMismatchError is returned where metaImport/s are present815// but none match our import path.816type ImportMismatchError struct {817	importPath string818	mismatches []string // the meta imports that were discarded for not matching our importPath819}820func (m ImportMismatchError) Error() string {821	formattedStrings := make([]string, len(m.mismatches))822	for i, pre := range m.mismatches {823		formattedStrings[i] = fmt.Sprintf("meta tag %s did not match import path %s", pre, m.importPath)824	}825	return strings.Join(formattedStrings, ", ")826}827// matchGoImport returns the metaImport from imports matching importPath.828// An error is returned if there are multiple matches.829// errNoMatch is returned if none match.830func matchGoImport(imports []metaImport, importPath string) (metaImport, error) {831	match := -1832	errImportMismatch := ImportMismatchError{importPath: importPath}833	for i, im := range imports {834		if !pathPrefix(importPath, im.Prefix) {835			errImportMismatch.mismatches = append(errImportMismatch.mismatches, im.Prefix)836			continue837		}838		if match >= 0 {839			if imports[match].VCS == "mod" && im.VCS != "mod" {...

String

Using AI Code Generation

1import (2func main() {3	golenv.Load()4	vcs_obj := vcs.VCS{5		Repo: golstring.Env("GOPATH", "/src/github.com/abhishekkr/gol/vcs"),6	}7	fmt.Println(vcs_obj.String())8}

String

Using AI Code Generation

1import (2func main() {3 fmt.Println(vcs.String())4}5import (6func String() string {7}

String

Using AI Code Generation

1import (2func main() {3 fmt.Println(v)4}5import (6func main() {7 fmt.Printf("%+v", v)8}

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.