/
environment.go
97 lines (85 loc) · 2.22 KB
/
environment.go
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package resolvers
import (
"context"
"fmt"
"strings"
. "github.com/deref/exo/internal/scalars"
"golang.org/x/exp/slices"
)
type EnvironmentSource interface {
Environment(ctx context.Context) (*EnvironmentResolver, error)
}
type EnvironmentResolver struct {
Parent *EnvironmentResolver
Source EnvironmentSource
Locals []*EnvironmentVariableResolver
}
type EnvironmentVariableResolver struct {
Name string
Value *string
Source EnvironmentSource
Sensitive bool
}
func sortEnvironmentVariables(variables []*EnvironmentVariableResolver) {
slices.SortFunc(variables, func(a, b *EnvironmentVariableResolver) bool {
return strings.Compare(a.Name, b.Name) < 0
})
}
func (r *EnvironmentResolver) initLocalsFromJSONObject(obj JSONObject) {
r.Locals = make([]*EnvironmentVariableResolver, 0, len(obj))
for k, v := range obj {
local := &EnvironmentVariableResolver{
Name: k,
Source: r.Source,
}
switch v := v.(type) {
case nil:
local.Value = nil
case string:
local.Value = &v
default:
panic(fmt.Errorf("variable %q has invalid value type: %T", k, v))
}
r.Locals = append(r.Locals, local)
}
sortEnvironmentVariables(r.Locals)
}
func (r *EnvironmentResolver) Variables() []*EnvironmentVariableResolver {
m := r.variablesMap()
res := make([]*EnvironmentVariableResolver, len(m))
for _, v := range m {
if v.Value == nil {
continue
}
res = append(res, v)
}
sortEnvironmentVariables(res)
return res
}
func (r *EnvironmentResolver) variablesMap() map[string]*EnvironmentVariableResolver {
variables := make(map[string]*EnvironmentVariableResolver)
r.gatherVariables(variables)
return variables
}
func (r *EnvironmentResolver) gatherVariables(variables map[string]*EnvironmentVariableResolver) {
if r.Parent != nil {
r.Parent.gatherVariables(variables)
}
for _, local := range r.Locals {
variables[local.Name] = local
}
}
func (r *EnvironmentResolver) AsMap() JSONObject {
obj := make(JSONObject)
for _, variable := range r.variablesMap() {
obj[variable.Name] = variable.Value
}
return obj
}
func (r *EnvironmentResolver) asMap() map[string]string {
obj := make(map[string]string)
for _, variable := range r.variablesMap() {
obj[variable.Name] = *variable.Value
}
return obj
}