Support all TF built-in functions

[pgavlin]

The complete list is here; function-by-function status is below.

• abs(float)
• basename(path)
• base64decode(string)
• base64encode(string)
• base64gzip(string)
• base64sha256(string)
• base64sha512(string)
• bcrypt(password, cost)
• ceil(float) tf2pulumi#263
• chomp(string)
• chunklist(list, size)
• cidrhost(iprange, hostnum)
• cidrnetmask(iprange)
• cidrsubnet(iprange, newbits, netnum)
• coalesce(string1, string2, ...)
• coalescelist(list1, list2, ...)
• compact(list)
• concat(list1, list2, ...)
• contains(list, element)
• dirname(path)
• distinct(list)
• element(list, index)
• file(path)
• floor(float)
• flatten(list of lists)
• format(format, args, ...)
• formatlist(format, args, ...)
• indent(numspaces, string)
• index(list, elem)
• join(delim, list)
• jsonencode(value)
• keys(map)
• length(list)
• list(items, ...)
• log(x, base)
• lookup(map, key, [default])
• lower(string)
• map(key, value, ...)
• matchkeys(values, keys, searchset)
• max(float1, float2, ...)
• merge(map1, map2, ...)
• min(float1, float2, ...)
• md5(string)
• pathexpand(string)
• pow(x, y)
• replace(string, search, replace)
• rsadecrypt(string, key)
• sha1(string)
• sha256(string)
• sha512(string)
• signum(integer)
• slice(list, from, to)
• sort(list)
• split(delim, string)
• substr(string, offset, length)
• timestamp()
• timeadd(time, duration)
• title(string)
• transpose(map)
• trimspace(string)
• upper(string)
• urlencode(string)
• uuid()
• values(map)
• zipmap(list, list)

[joeduffy]

Ideally we'd start using @jen20's new @pulumi/terraform package for all of these.

[markfickett]

I just installed pulumi (shell install) and tf2pulumi (binary for linux x64), and got an error in a Python project saying "unknown function 'base64decode'". I see its status is supported here, however. First time trying to use either Pulumi or tf2pulumi.

[pbarker]

Whats the status here? This makes it pretty hard to use Terraform modules

[Nezteb]

Whats the status here? This makes it pretty hard to use Terraform modules

@pbarker This issue and pulumi/tf2pulumi#239 are pretty tightly related. I made a comment on pulumi/tf2pulumi#239 suggesting some stopgap options for explaining these unsupported pieces of Terraform to new users who are trying to migrate to Pulumi.

[Frassle]

See https://github.com/pulumi/pulumi-terraform-bridge/blob/master/scripts/generate_builtins.py for an update to date tested list of supported functions.