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Create setter with marker as name for subst

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This commit is contained in:
Phani Teja Marupaka
2020-04-26 18:06:13 -07:00
parent 3e6b5918a2
commit a2f2cc6a85
3 changed files with 56 additions and 51 deletions
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37
cmd/config/internal/commands/cmdcreatesubstitution.go
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@@ -4,6 +4,7 @@
package commands
import (
"regexp"
"strings"
"github.com/spf13/cobra"
@@ -17,20 +18,19 @@ import (
func NewCreateSubstitutionRunner(parent string) *CreateSubstitutionRunner {
r := &CreateSubstitutionRunner{}
cs := &cobra.Command{
Use: "create-subst DIR NAME VALUE",
Args: cobra.ExactArgs(3),
Use: "create-subst DIR NAME",
Args: cobra.ExactArgs(2),
PreRunE: r.preRunE,
RunE: r.runE,
}
cs.Flags().StringVar(&r.CreateSubstitution.FieldName, "field", "",
"name of the field to set -- e.g. --field port")
"name of the field to set -- e.g. --field image")
cs.Flags().StringVar(&r.CreateSubstitution.FieldValue, "field-value", "",
"value of the field to create substitution for -- e.g. --field-value nginx:0.1.0")
cs.Flags().StringVar(&r.CreateSubstitution.Pattern, "pattern", "",
"substitution pattern")
cs.Flags().StringSliceVar(&r.Values, "value", []string{""},
"substitution values for the pattern. format is PATTERN_MARKER=SETTER_NAME"+
"where PATTERN_MARKER is the pattern substring to replace, and SETTER_NAME is the"+
"setter from which to take the replacement value.")
`substitution pattern -- e.g. --pattern \${my-image-setter}:\${my-tag-setter}`)
_ = cs.MarkFlagRequired("pattern")
_ = cs.MarkFlagRequired("field-value")
fixDocs(parent, cs)
r.Command = cs
return r
@@ -54,7 +54,6 @@ func (r *CreateSubstitutionRunner) runE(c *cobra.Command, args []string) error {
func (r *CreateSubstitutionRunner) preRunE(c *cobra.Command, args []string) error {
var err error
r.CreateSubstitution.Name = args[1]
r.CreateSubstitution.FieldValue = args[2]
if err != nil {
return err
}
@@ -64,16 +63,20 @@ func (r *CreateSubstitutionRunner) preRunE(c *cobra.Command, args []string) erro
return err
}
// parse the marker values
for i := range r.Values {
parts := strings.SplitN(r.Values[i], "=", 2)
if len(parts) < 2 {
return errors.Errorf("values must be specified as PATTERN_MARKER=SETTER_NAME")
}
ref := setters2.DefinitionsPrefix + setters2.SetterDefinitionPrefix + parts[1]
// extract setter name tokens from pattern enclosed in ${}
re := regexp.MustCompile(`\$\{([^}]*)\}`)
markers := re.FindAll([]byte(r.CreateSubstitution.Pattern), -1)
if len(markers) == 0 {
return errors.Errorf("unable to find setter names in pattern, " +
"setter names must be enclosed in ${}")
}
for _, marker := range markers {
ref := setters2.DefinitionsPrefix + setters2.SetterDefinitionPrefix +
strings.TrimSuffix(strings.TrimPrefix(string(marker), "${"), "}")
r.CreateSubstitution.Values = append(
r.CreateSubstitution.Values,
setters2.Value{Marker: parts[0], Ref: ref},
setters2.Value{Marker: string(marker), Ref: ref},
)
}