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git-sync
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Merge pull request #273 from thockin/5-flag-input-checking 

Improve flag input checking and errors
This commit is contained in:
Kubernetes Prow Robot 2020-09-05 10:33:41 -07:00 committed by GitHub
parent f67c13654e 9cef5f8ced
commit c210398e92
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 81 additions and 12 deletions
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93
cmd/git-sync/main.go
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@ -233,7 +233,27 @@ func main() {
}
if *flRepo == "" {
fmt.Fprintf(os.Stderr, "ERROR: --repo must be provided\n")
fmt.Fprintf(os.Stderr, "ERROR: --repo must be specified\n")
flag.Usage()
os.Exit(1)
}
if *flDepth < 0 { // 0 means "no limit"
fmt.Fprintf(os.Stderr, "ERROR: --depth must be greater than or equal to 0\n")
flag.Usage()
os.Exit(1)
}
switch *flSubmodules {
case submodulesRecursive, submodulesShallow, submodulesOff:
default:
fmt.Fprintf(os.Stderr, "ERROR: --submodules must be one of %q, %q, or %q", submodulesRecursive, submodulesShallow, submodulesOff)
flag.Usage()
os.Exit(1)
}
if *flRoot == "" {
fmt.Fprintf(os.Stderr, "ERROR: --root must be specified\n")
flag.Usage()
os.Exit(1)
}
@ -244,19 +264,75 @@ func main() {
}
if strings.Contains(*flDest, "/") {
fmt.Fprintf(os.Stderr, "ERROR: --dest must be a bare name\n")
fmt.Fprintf(os.Stderr, "ERROR: --dest must be a leaf name, not a path\n")
flag.Usage()
os.Exit(1)
}
if *flWait < 0 {
fmt.Fprintf(os.Stderr, "ERROR: --wait must be greater than or equal to 0\n")
flag.Usage()
os.Exit(1)
}
if *flSyncTimeout < 0 {
fmt.Fprintf(os.Stderr, "ERROR: --timeout must be greater than 0\n")
flag.Usage()
os.Exit(1)
}
if *flWebhookURL != "" {
if *flWebhookStatusSuccess <= 0 {
fmt.Fprintf(os.Stderr, "ERROR: --webhook-success-status must be greater than 0\n")
flag.Usage()
os.Exit(1)
}
if *flWebhookTimeout < time.Second {
fmt.Fprintf(os.Stderr, "ERROR: --webhook-timeout must be at least 1s\n")
flag.Usage()
os.Exit(1)
}
if *flWebhookBackoff < time.Second {
fmt.Fprintf(os.Stderr, "ERROR: --webhook-backoff must be at least 1s\n")
flag.Usage()
os.Exit(1)
}
}
if _, err := exec.LookPath(*flGitCmd); err != nil {
fmt.Fprintf(os.Stderr, "ERROR: git executable %q not found: %v\n", *flGitCmd, err)
os.Exit(1)
}
if (*flUsername != "" || *flPassword != "" || *flCookieFile || *flAskPassURL != "") && *flSSH {
fmt.Fprintf(os.Stderr, "ERROR: --ssh is set but --username, --password, --askpass-url, or --cookie-file were provided\n")
os.Exit(1)
if *flSSH {
if *flUsername != "" {
fmt.Fprintf(os.Stderr, "ERROR: only one of --ssh and --username may be specified\n")
os.Exit(1)
}
if *flPassword != "" {
fmt.Fprintf(os.Stderr, "ERROR: only one of --ssh and --password may be specified\n")
os.Exit(1)
}
if *flAskPassURL != "" {
fmt.Fprintf(os.Stderr, "ERROR: only one of --ssh and --askpass-url may be specified\n")
os.Exit(1)
}
if *flCookieFile {
fmt.Fprintf(os.Stderr, "ERROR: only one of --ssh and --cookie-file may be specified\n")
os.Exit(1)
}
if *flSSHKeyFile == "" {
fmt.Fprintf(os.Stderr, "ERROR: --ssh-key-file must be specified when --ssh is specified\n")
flag.Usage()
os.Exit(1)
}
if *flSSHKnownHosts {
if *flSSHKnownHostsFile == "" {
fmt.Fprintf(os.Stderr, "ERROR: --ssh-known-hosts-file must be specified when --ssh-known-hosts is specified\n")
flag.Usage()
os.Exit(1)
}
}
}
if *flAddUser {
@ -266,13 +342,6 @@ func main() {
}
}
switch *flSubmodules {
case submodulesRecursive, submodulesShallow, submodulesOff:
default:
fmt.Fprintf(os.Stderr, "ERROR: --submodules must be one of %q, %q, or %q", submodulesRecursive, submodulesShallow, submodulesOff)
os.Exit(1)
}
// This context is used only for git credentials initialization. There are no long-running operations like
// `git clone`, so initTimeout set to 30 seconds should be enough.
ctx, cancel := context.WithTimeout(context.Background(), initTimeout)