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helpers.go
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/
helpers.go
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package command
import (
"fmt"
"os"
"path"
"time"
"github.com/fatih/color"
"github.com/simplesurance/baur"
"github.com/simplesurance/baur/format"
"github.com/simplesurance/baur/log"
"github.com/simplesurance/baur/storage"
"github.com/simplesurance/baur/storage/postgres"
)
// envVarPSQLURL contains the name of an environment variable in that the
// postgresql URI can be stored
const envVarPSQLURL = "BAUR_POSTGRESQL_URL"
var (
greenHighlight = color.New(color.FgGreen).SprintFunc()
redHighlight = color.New(color.FgRed).SprintFunc()
yellowHighlight = color.New(color.FgYellow).SprintFunc()
underline = color.New(color.Underline).SprintFunc()
// highlight is a function that highlights parts of strings in the cli output
highlight = greenHighlight
)
func findRepository() (*baur.Repository, error) {
log.Debugln("searching for repository root...")
repo, err := baur.FindRepositoryCwd()
if err != nil {
return nil, err
}
log.Debugf("repository root found: %s", repo.Path)
return repo, nil
}
// MustFindRepository must find repo
func MustFindRepository() *baur.Repository {
repo, err := findRepository()
if err != nil {
if os.IsNotExist(err) {
log.Fatalf("could not find repository root config file "+
"ensure the file '%s' exist in the root",
baur.RepositoryCfgFile)
}
log.Fatalln(err)
}
return repo
}
func isAppDir(arg string) bool {
cfgPath := path.Join(arg, baur.AppCfgFile)
_, err := os.Stat(cfgPath)
return err == nil
}
func mustArgToApp(repo *baur.Repository, arg string) *baur.App {
if isAppDir(arg) {
app, err := repo.AppByDir(arg)
if err != nil {
log.Fatalf("could not find application in dir '%s': %s", arg, err)
}
return app
}
app, err := repo.AppByName(arg)
if err != nil {
if os.IsNotExist(err) {
log.Fatalf("could not find application with name '%s'", arg)
}
log.Fatalln(err)
}
return app
}
// getPostgresCltWithEnv returns a new postresql storage client,
// if the environment variable BAUR_PSQL_URI is set, this uri is used instead of
// the configuration specified in the baur.Repository object
func getPostgresCltWithEnv(psqlURI string) (*postgres.Client, error) {
uri := psqlURI
if envURI := os.Getenv(envVarPSQLURL); len(envURI) != 0 {
log.Debugf("using postgresql connection URL from $%s environment variable",
envVarPSQLURL)
uri = envURI
} else {
log.Debugf("environment variable $%s not set", envVarPSQLURL)
}
return postgres.New(uri)
}
//mustHavePSQLURI calls log.Fatalf if neither envVarPSQLURL nor the postgres_url
//in the repository config is set
func mustHavePSQLURI(r *baur.Repository) {
if len(r.PSQLURL) != 0 {
return
}
if len(os.Getenv(envVarPSQLURL)) == 0 {
log.Fatalf("PostgreSQL connection information is missing.\n"+
"- set postgres_url in your repository config or\n"+
"- set the $%s environment variable", envVarPSQLURL)
}
}
// MustGetPostgresClt must return the PG client
func MustGetPostgresClt(r *baur.Repository) *postgres.Client {
mustHavePSQLURI(r)
clt, err := getPostgresCltWithEnv(r.PSQLURL)
if err != nil {
log.Fatalf("could not establish connection to postgreSQL db: %s", err)
}
return clt
}
func mustGetCommitID(r *baur.Repository) string {
commitID, err := r.GitCommitID()
if err != nil {
log.Fatalln(err)
}
return commitID
}
func mustGetGitWorktreeIsDirty(r *baur.Repository) bool {
isDirty, err := r.GitWorkTreeIsDirty()
if err != nil {
log.Fatalln(err)
}
return isDirty
}
func vcsStr(v *storage.VCSState) string {
if len(v.CommitID) == 0 {
return ""
}
if v.IsDirty {
return fmt.Sprintf("%s-dirty", v.CommitID)
}
return v.CommitID
}
func mustArgToApps(repo *baur.Repository, args []string) []*baur.App {
if len(args) == 0 {
apps, err := repo.FindApps()
if err != nil {
log.Fatalln(err)
}
if len(apps) == 0 {
log.Fatalf("could not find any applications\n"+
"- ensure the [Discover] section is correct in %s\n"+
"- ensure that you have >1 application dirs "+
"containing a %s file",
repo.CfgPath, baur.AppCfgFile)
}
return apps
}
dedupMap := make(map[string]struct{}, len(args))
apps := make([]*baur.App, 0, len(args))
for _, arg := range args {
app := mustArgToApp(repo, arg)
if _, exist := dedupMap[app.Path]; exist {
continue
}
dedupMap[app.Path] = struct{}{}
apps = append(apps, mustArgToApp(repo, arg))
}
return apps
}
func mustWriteRow(fmt format.Formatter, row []interface{}) {
err := fmt.WriteRow(row)
if err != nil {
log.Fatalln(err)
}
}
func coloredBuildStatus(status baur.BuildStatus) string {
switch status {
case baur.BuildStatusInputsUndefined:
return yellowHighlight(status.String())
case baur.BuildStatusBuildCommandUndefined:
return yellowHighlight(status.String())
case baur.BuildStatusExist:
return greenHighlight(status.String())
case baur.BuildStatusPending:
return redHighlight(status.String())
default:
return status.String()
}
}
func bytesToMib(bytes int) string {
return fmt.Sprintf("%.3f", float64(bytes)/1024/1024)
}
func durationToStrSeconds(duration time.Duration) string {
return fmt.Sprintf("%.3f", duration.Seconds())
}