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util.go
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util.go
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package main
import (
"fmt"
"io"
"net/url"
"os"
"path/filepath"
"strings"
ini "git.sr.ht/~spc/go-ini"
"git.sr.ht/~spc/go-log"
"github.com/urfave/cli/v2"
"golang.org/x/sys/unix"
)
// isTerminal returns true if the file descriptor is terminal.
func isTerminal(fd uintptr) bool {
_, err := unix.IoctlGetTermios(int(fd), unix.TCGETS)
return err == nil
}
// BashCompleteCommand prints all visible flag options for the given command,
// and then recursively calls itself on each subcommand.
func BashCompleteCommand(cmd *cli.Command, w io.Writer) {
for _, name := range cmd.Names() {
fmt.Fprintf(w, "%v\n", name)
}
PrintFlagNames(cmd.VisibleFlags(), w)
for _, command := range cmd.Subcommands {
BashCompleteCommand(command, w)
}
}
// PrintFlagNames prints the long and short names of each flag in the slice.
func PrintFlagNames(flags []cli.Flag, w io.Writer) {
for _, flag := range flags {
for _, name := range flag.Names() {
if len(name) > 1 {
fmt.Fprintf(w, "--%v\n", name)
} else {
fmt.Fprintf(w, "-%v\n", name)
}
}
}
}
// BashComplete prints all commands, subcommands and flags to the application
// writer.
func BashComplete(c *cli.Context) {
for _, command := range c.App.VisibleCommands() {
BashCompleteCommand(command, c.App.Writer)
// global flags
PrintFlagNames(c.App.VisibleFlags(), c.App.Writer)
}
}
func ConfigPath() (string, error) {
// default config file path in `/etc/rhc/config.toml`
filePath := filepath.Join("/etc", LongName, "config.toml")
if _, err := os.Stat(filePath); os.IsNotExist(err) {
return "", nil
}
return filePath, nil
}
// Get the API server URL based on, insights-client.conf and rhsm.conf
// This URL may differ from prod, stage and Satellite
func GuessAPIURL() (string, error) {
var uString string
var baseURL *url.URL
// Check if the server api is set in insights conf
// Create the structs needed to read the config file
opts := ini.Options{
AllowNumberSignComments: true,
}
type InsightsClientConf struct {
BaseUrl string `ini:"base_url"`
}
type InsightsConf struct {
InsightsClient InsightsClientConf `ini:"insights-client"`
}
var cfg InsightsConf
// Read the config file
data, err := os.ReadFile("/etc/insights-client/insights-client.conf")
if err != nil {
return "", fmt.Errorf("fail to read file: %v", err)
}
// Get the config into the struct
if err := ini.UnmarshalWithOptions(data, &cfg, opts); err != nil {
return "", fmt.Errorf("fail to read configuration: %v", err)
}
APIServer := cfg.InsightsClient.BaseUrl
if APIServer != "" {
base, err := url.Parse("https://" + APIServer)
if err != nil {
return "", fmt.Errorf("cannot get base URL: %w", err)
}
p, _ := url.Parse("api/config-manager/v2/profiles/current")
uString = base.ResolveReference(p).String()
} else {
// Get the server hostname where this host is connected
var serverHost string
err = getRHSMConfigOption("server.hostname", &serverHost)
if err != nil {
return "", fmt.Errorf("cannot get server hostname: %w", err)
}
// Get the final api server url to make the call
// Check if it is the default api server
if strings.Contains(serverHost, "subscription.rhsm.redhat.com") {
baseURL, _ = url.Parse("https://cert.console.redhat.com")
p, _ := url.Parse("api/config-manager/v2/profiles/current")
uString = baseURL.ResolveReference(p).String()
} else {
// Otherwise it is connected to Satellite
// Generate the base URL
base, err := url.Parse("https://" + serverHost)
if err != nil {
return "", fmt.Errorf("cannot get base URL: %w", err)
}
p, _ := url.Parse("redhat_access/r/insights/platform/config-manager/v2/profiles/current")
uString = base.ResolveReference(p).String()
}
}
return uString, nil
}
// hasPriorityErrors checks if the errorMessage map has any error
// with a higher priority than the logLevel configure.
func hasPriorityErrors(errorMessages map[string]LogMessage, level log.Level) bool {
for _, logMsg := range errorMessages {
if logMsg.level <= level {
return true
}
}
return false
}