buildx/bake/hclparser/stdlib.go
Justin Chadwell 691723f9f9 bake: add timestamp function
Terraform includes a timestamp function to get the current time. go-cty
has imported a number of the timestamp functions to it's standard
library, however, this was one was not included.

This patch simply pulls in the TimestampFunc from Terraform's
internal/lang/funcs/datetime.go to allow easily fetching the current
time in bake.

Signed-off-by: Justin Chadwell <me@jedevc.com>
2022-07-18 11:29:35 +01:00

127 lines
5.4 KiB
Go

package hclparser
import (
"time"
"github.com/hashicorp/go-cty-funcs/cidr"
"github.com/hashicorp/go-cty-funcs/crypto"
"github.com/hashicorp/go-cty-funcs/encoding"
"github.com/hashicorp/go-cty-funcs/uuid"
"github.com/hashicorp/hcl/v2/ext/tryfunc"
"github.com/hashicorp/hcl/v2/ext/typeexpr"
"github.com/zclconf/go-cty/cty"
"github.com/zclconf/go-cty/cty/function"
"github.com/zclconf/go-cty/cty/function/stdlib"
)
var stdlibFunctions = map[string]function.Function{
"absolute": stdlib.AbsoluteFunc,
"add": stdlib.AddFunc,
"and": stdlib.AndFunc,
"base64decode": encoding.Base64DecodeFunc,
"base64encode": encoding.Base64EncodeFunc,
"bcrypt": crypto.BcryptFunc,
"byteslen": stdlib.BytesLenFunc,
"bytesslice": stdlib.BytesSliceFunc,
"can": tryfunc.CanFunc,
"ceil": stdlib.CeilFunc,
"chomp": stdlib.ChompFunc,
"chunklist": stdlib.ChunklistFunc,
"cidrhost": cidr.HostFunc,
"cidrnetmask": cidr.NetmaskFunc,
"cidrsubnet": cidr.SubnetFunc,
"cidrsubnets": cidr.SubnetsFunc,
"csvdecode": stdlib.CSVDecodeFunc,
"coalesce": stdlib.CoalesceFunc,
"coalescelist": stdlib.CoalesceListFunc,
"compact": stdlib.CompactFunc,
"concat": stdlib.ConcatFunc,
"contains": stdlib.ContainsFunc,
"convert": typeexpr.ConvertFunc,
"distinct": stdlib.DistinctFunc,
"divide": stdlib.DivideFunc,
"element": stdlib.ElementFunc,
"equal": stdlib.EqualFunc,
"flatten": stdlib.FlattenFunc,
"floor": stdlib.FloorFunc,
"formatdate": stdlib.FormatDateFunc,
"format": stdlib.FormatFunc,
"formatlist": stdlib.FormatListFunc,
"greaterthan": stdlib.GreaterThanFunc,
"greaterthanorequalto": stdlib.GreaterThanOrEqualToFunc,
"hasindex": stdlib.HasIndexFunc,
"indent": stdlib.IndentFunc,
"index": stdlib.IndexFunc,
"int": stdlib.IntFunc,
"jsondecode": stdlib.JSONDecodeFunc,
"jsonencode": stdlib.JSONEncodeFunc,
"keys": stdlib.KeysFunc,
"join": stdlib.JoinFunc,
"length": stdlib.LengthFunc,
"lessthan": stdlib.LessThanFunc,
"lessthanorequalto": stdlib.LessThanOrEqualToFunc,
"log": stdlib.LogFunc,
"lookup": stdlib.LookupFunc,
"lower": stdlib.LowerFunc,
"max": stdlib.MaxFunc,
"md5": crypto.Md5Func,
"merge": stdlib.MergeFunc,
"min": stdlib.MinFunc,
"modulo": stdlib.ModuloFunc,
"multiply": stdlib.MultiplyFunc,
"negate": stdlib.NegateFunc,
"notequal": stdlib.NotEqualFunc,
"not": stdlib.NotFunc,
"or": stdlib.OrFunc,
"parseint": stdlib.ParseIntFunc,
"pow": stdlib.PowFunc,
"range": stdlib.RangeFunc,
"regexall": stdlib.RegexAllFunc,
"regex": stdlib.RegexFunc,
"regex_replace": stdlib.RegexReplaceFunc,
"reverse": stdlib.ReverseFunc,
"reverselist": stdlib.ReverseListFunc,
"rsadecrypt": crypto.RsaDecryptFunc,
"sethaselement": stdlib.SetHasElementFunc,
"setintersection": stdlib.SetIntersectionFunc,
"setproduct": stdlib.SetProductFunc,
"setsubtract": stdlib.SetSubtractFunc,
"setsymmetricdifference": stdlib.SetSymmetricDifferenceFunc,
"setunion": stdlib.SetUnionFunc,
"sha1": crypto.Sha1Func,
"sha256": crypto.Sha256Func,
"sha512": crypto.Sha512Func,
"signum": stdlib.SignumFunc,
"slice": stdlib.SliceFunc,
"sort": stdlib.SortFunc,
"split": stdlib.SplitFunc,
"strlen": stdlib.StrlenFunc,
"substr": stdlib.SubstrFunc,
"subtract": stdlib.SubtractFunc,
"timeadd": stdlib.TimeAddFunc,
"timestamp": timestampFunc,
"title": stdlib.TitleFunc,
"trim": stdlib.TrimFunc,
"trimprefix": stdlib.TrimPrefixFunc,
"trimspace": stdlib.TrimSpaceFunc,
"trimsuffix": stdlib.TrimSuffixFunc,
"try": tryfunc.TryFunc,
"upper": stdlib.UpperFunc,
"urlencode": encoding.URLEncodeFunc,
"uuidv4": uuid.V4Func,
"uuidv5": uuid.V5Func,
"values": stdlib.ValuesFunc,
"zipmap": stdlib.ZipmapFunc,
}
// timestampFunc constructs a function that returns a string representation of the current date and time.
//
// This function was imported from terraform's datetime utilities.
var timestampFunc = function.New(&function.Spec{
Params: []function.Parameter{},
Type: function.StaticReturnType(cty.String),
Impl: func(args []cty.Value, retType cty.Type) (cty.Value, error) {
return cty.StringVal(time.Now().UTC().Format(time.RFC3339)), nil
},
})