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import ( "database/sql" "fmt" "strings"
"tangled.org/core/appview/db" "tangled.org/core/appview/models" "tangled.org/core/orm" "tangled.org/core/patchutil")
func (v *Validator) ValidatePull(pull *models.Pull) error { if len(pull.Submissions) == 0 { return fmt.Errorf("pull must have at least one submission") }
latestSubmission := pull.LatestSubmission() if latestSubmission == nil { return fmt.Errorf("pull must have a valid latest submission") }
isFormatPatch := patchutil.IsFormatPatch(latestSubmission.Patch)
// title and body can only be empty if the patch is a format-patch if !isFormatPatch { if pull.Title == "" { return fmt.Errorf("pull title is empty (required for non-format-patch pulls)") }
if pull.Body == "" { return fmt.Errorf("pull body is empty (required for non-format-patch pulls)") }
if st := strings.TrimSpace(v.sanitizer.SanitizeDescription(pull.Title)); st == "" { return fmt.Errorf("title is empty after HTML sanitization") }
if sb := strings.TrimSpace(v.sanitizer.SanitizeDefault(pull.Body)); sb == "" { return fmt.Errorf("body is empty after HTML sanitization") } }
// the dependent_on should not form a DAG, aka, two PRs should not have the same dependent if pull.DependentOn != nil { dependentPull, err := db.GetPull( v.db, orm.FilterEq("dependent_on", pull.DependentOn.String()), )
if err == sql.ErrNoRows { return nil }
if err != nil { return fmt.Errorf("failed to fetch pulls with same dependency: %w", err) }
if dependentPull.AtUri() == pull.AtUri() { return nil }
return fmt.Errorf("another pull already depends on %s, which would form a DAG, this is presently disallowed", pull.DependentOn.String()) }
return nil}