From ca4e8ebdbda73956585039e297c7ce078b9842fb Mon Sep 17 00:00:00 2001
From: Sebastiaan van Stijn <github@gone.nl>
Date: Thu, 14 Dec 2023 13:51:57 +0100
Subject: [PATCH] add //go:build directives to prevent downgrading to go1.16
 language

This is a follow-up to 0e73168b7e6d1d029d76d05b843b1aaec46739a8

This repository is not yet a module (i.e., does not have a `go.mod`). This
is not problematic when building the code in GOPATH or "vendor" mode, but
when using the code as a module-dependency (in module-mode), different semantics
are applied since Go1.21, which switches Go _language versions_ on a per-module,
per-package, or even per-file base.

A condensed summary of that logic [is as follows][1]:

- For modules that have a go.mod containing a go version directive; that
  version is considered a minimum _required_ version (starting with the
  go1.19.13 and go1.20.8 patch releases: before those, it was only a
  recommendation).
- For dependencies that don't have a go.mod (not a module), go language
  version go1.16 is assumed.
- Likewise, for modules that have a go.mod, but the file does not have a
  go version directive, go language version go1.16 is assumed.
- If a go.work file is present, but does not have a go version directive,
  language version go1.17 is assumed.

When switching language versions, Go _downgrades_ the language version,
which means that language features (such as generics, and `any`) are not
available, and compilation fails. For example:

    # github.com/docker/cli/cli/context/store
    /go/pkg/mod/github.com/docker/cli@v25.0.0-beta.2+incompatible/cli/context/store/storeconfig.go:6:24: predeclared any requires go1.18 or later (-lang was set to go1.16; check go.mod)
    /go/pkg/mod/github.com/docker/cli@v25.0.0-beta.2+incompatible/cli/context/store/store.go:74:12: predeclared any requires go1.18 or later (-lang was set to go1.16; check go.mod)

Note that these fallbacks are per-module, per-package, and can even be
per-file, so _(indirect) dependencies_ can still use modern language
features, as long as their respective go.mod has a version specified.

Unfortunately, these failures do not occur when building locally (using
vendor / GOPATH mode), but will affect consumers of the module.

Obviously, this situation is not ideal, and the ultimate solution is to
move to go modules (add a go.mod), but this comes with a non-insignificant
risk in other areas (due to our complex dependency tree).

We can revert to using go1.16 language features only, but this may be
limiting, and may still be problematic when (e.g.) matching signatures
of dependencies.

There is an escape hatch: adding a `//go:build` directive to files that
make use of go language features. From the [go toolchain docs][2]:

> The go line for each module sets the language version the compiler enforces
> when compiling packages in that module. The language version can be changed
> on a per-file basis by using a build constraint.
>
> For example, a module containing code that uses the Go 1.21 language version
> should have a `go.mod` file with a go line such as `go 1.21` or `go 1.21.3`.
> If a specific source file should be compiled only when using a newer Go
> toolchain, adding `//go:build go1.22` to that source file both ensures that
> only Go 1.22 and newer toolchains will compile the file and also changes
> the language version in that file to Go 1.22.

This patch adds `//go:build` directives to those files using recent additions
to the language. It's currently using go1.19 as version to match the version
in our "vendor.mod", but we can consider being more permissive ("any" requires
go1.18 or up), or more "optimistic" (force go1.21, which is the version we
currently use to build).

For completeness sake, note that any file _without_ a `//go:build` directive
will continue to use go1.16 language version when used as a module.

[1]: https://github.com/golang/go/blob/58c28ba286dd0e98fe4cca80f5d64bbcb824a685/src/cmd/go/internal/gover/version.go#L9-L56
[2]; https://go.dev/doc/toolchain#:~:text=The%20go%20line%20for,file%20to%20Go%201.22

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit 70216b662dc440faaebab531deb35f0f0c633d17)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
---
 cli-plugins/manager/error.go                    | 3 +++
 cli/command/cli.go                              | 3 +++
 cli/command/config/inspect.go                   | 3 +++
 cli/command/container/inspect.go                | 3 +++
 cli/command/context.go                          | 3 +++
 cli/command/context/create.go                   | 3 +++
 cli/command/context/create_test.go              | 3 +++
 cli/command/context/inspect.go                  | 3 +++
 cli/command/context_test.go                     | 3 +++
 cli/command/defaultcontextstore.go              | 3 +++
 cli/command/defaultcontextstore_test.go         | 3 +++
 cli/command/formatter/container.go              | 3 +++
 cli/command/formatter/container_test.go         | 3 +++
 cli/command/formatter/custom.go                 | 3 +++
 cli/command/formatter/formatter.go              | 3 +++
 cli/command/formatter/formatter_test.go         | 3 +++
 cli/command/formatter/reflect.go                | 3 +++
 cli/command/formatter/reflect_test.go           | 3 +++
 cli/command/formatter/volume_test.go            | 3 +++
 cli/command/idresolver/idresolver.go            | 3 +++
 cli/command/image/inspect.go                    | 3 +++
 cli/command/inspect/inspector.go                | 3 +++
 cli/command/network/formatter_test.go           | 3 +++
 cli/command/network/inspect.go                  | 3 +++
 cli/command/node/formatter_test.go              | 3 +++
 cli/command/node/inspect.go                     | 3 +++
 cli/command/plugin/formatter_test.go            | 3 +++
 cli/command/plugin/inspect.go                   | 3 +++
 cli/command/secret/inspect.go                   | 3 +++
 cli/command/service/formatter_test.go           | 3 +++
 cli/command/service/inspect.go                  | 3 +++
 cli/command/service/inspect_test.go             | 3 +++
 cli/command/service/opts.go                     | 3 +++
 cli/command/stack/loader/loader.go              | 3 +++
 cli/command/system/info.go                      | 3 +++
 cli/command/system/inspect.go                   | 3 +++
 cli/command/trust/inspect.go                    | 3 +++
 cli/command/utils.go                            | 3 +++
 cli/command/volume/inspect.go                   | 3 +++
 cli/compose/interpolation/interpolation.go      | 3 +++
 cli/compose/interpolation/interpolation_test.go | 3 +++
 cli/compose/loader/full-struct_test.go          | 3 +++
 cli/compose/loader/interpolate.go               | 3 +++
 cli/compose/loader/loader.go                    | 3 +++
 cli/compose/loader/loader_test.go               | 3 +++
 cli/compose/loader/merge.go                     | 3 +++
 cli/compose/loader/merge_test.go                | 3 +++
 cli/compose/schema/schema.go                    | 3 +++
 cli/compose/schema/schema_test.go               | 3 +++
 cli/compose/template/template.go                | 3 +++
 cli/compose/template/template_test.go           | 3 +++
 cli/compose/types/types.go                      | 3 +++
 cli/context/store/metadata_test.go              | 3 +++
 cli/context/store/metadatastore.go              | 3 +++
 cli/context/store/store.go                      | 3 +++
 cli/context/store/store_test.go                 | 3 +++
 cli/context/store/storeconfig.go                | 3 +++
 cli/context/store/storeconfig_test.go           | 3 +++
 cmd/docker/builder_test.go                      | 3 +++
 templates/templates.go                          | 3 +++
 60 files changed, 180 insertions(+)

diff --git a/cli-plugins/manager/error.go b/cli-plugins/manager/error.go
index 11822d660c0f..d1fbb391d542 100644
--- a/cli-plugins/manager/error.go
+++ b/cli-plugins/manager/error.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package manager
 
 import (
diff --git a/cli/command/cli.go b/cli/command/cli.go
index 1551c14da85b..1fdb5bedd75a 100644
--- a/cli/command/cli.go
+++ b/cli/command/cli.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package command
 
 import (
diff --git a/cli/command/config/inspect.go b/cli/command/config/inspect.go
index 64773419adde..baab76161a3d 100644
--- a/cli/command/config/inspect.go
+++ b/cli/command/config/inspect.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package config
 
 import (
diff --git a/cli/command/container/inspect.go b/cli/command/container/inspect.go
index b9e320b82718..0fedd293a4b5 100644
--- a/cli/command/container/inspect.go
+++ b/cli/command/container/inspect.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package container
 
 import (
diff --git a/cli/command/context.go b/cli/command/context.go
index 29a2be860fc5..5c4e0bc24394 100644
--- a/cli/command/context.go
+++ b/cli/command/context.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package command
 
 import (
diff --git a/cli/command/context/create.go b/cli/command/context/create.go
index 757d40adef04..62d18a646997 100644
--- a/cli/command/context/create.go
+++ b/cli/command/context/create.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package context
 
 import (
diff --git a/cli/command/context/create_test.go b/cli/command/context/create_test.go
index e962f5a680cd..603b95b765e5 100644
--- a/cli/command/context/create_test.go
+++ b/cli/command/context/create_test.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package context
 
 import (
diff --git a/cli/command/context/inspect.go b/cli/command/context/inspect.go
index ddd0f926398d..4d6d5d589fc2 100644
--- a/cli/command/context/inspect.go
+++ b/cli/command/context/inspect.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package context
 
 import (
diff --git a/cli/command/context_test.go b/cli/command/context_test.go
index 7ef2157942ac..5b5bb7072557 100644
--- a/cli/command/context_test.go
+++ b/cli/command/context_test.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package command
 
 import (
diff --git a/cli/command/defaultcontextstore.go b/cli/command/defaultcontextstore.go
index 95f89fc6ff0a..302d3869d4a6 100644
--- a/cli/command/defaultcontextstore.go
+++ b/cli/command/defaultcontextstore.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package command
 
 import (
diff --git a/cli/command/defaultcontextstore_test.go b/cli/command/defaultcontextstore_test.go
index a368135ff7fc..a9f40d3c7bc7 100644
--- a/cli/command/defaultcontextstore_test.go
+++ b/cli/command/defaultcontextstore_test.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package command
 
 import (
diff --git a/cli/command/formatter/container.go b/cli/command/formatter/container.go
index 60ad2fa40b50..be231cc9b36c 100644
--- a/cli/command/formatter/container.go
+++ b/cli/command/formatter/container.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package formatter
 
 import (
diff --git a/cli/command/formatter/container_test.go b/cli/command/formatter/container_test.go
index 1c09a57791a9..8dfb2a39b324 100644
--- a/cli/command/formatter/container_test.go
+++ b/cli/command/formatter/container_test.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package formatter
 
 import (
diff --git a/cli/command/formatter/custom.go b/cli/command/formatter/custom.go
index 2d6c979c32f0..1002c218b5a2 100644
--- a/cli/command/formatter/custom.go
+++ b/cli/command/formatter/custom.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package formatter
 
 import "strings"
diff --git a/cli/command/formatter/formatter.go b/cli/command/formatter/formatter.go
index 55c5ea6e0277..92bd45ba573a 100644
--- a/cli/command/formatter/formatter.go
+++ b/cli/command/formatter/formatter.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package formatter
 
 import (
diff --git a/cli/command/formatter/formatter_test.go b/cli/command/formatter/formatter_test.go
index 0f7ca9344240..572d1f9b6d93 100644
--- a/cli/command/formatter/formatter_test.go
+++ b/cli/command/formatter/formatter_test.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package formatter
 
 import (
diff --git a/cli/command/formatter/reflect.go b/cli/command/formatter/reflect.go
index 9d153bc988fb..267d95292314 100644
--- a/cli/command/formatter/reflect.go
+++ b/cli/command/formatter/reflect.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package formatter
 
 import (
diff --git a/cli/command/formatter/reflect_test.go b/cli/command/formatter/reflect_test.go
index c4e2383f03fa..3f17aaa28851 100644
--- a/cli/command/formatter/reflect_test.go
+++ b/cli/command/formatter/reflect_test.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package formatter
 
 import (
diff --git a/cli/command/formatter/volume_test.go b/cli/command/formatter/volume_test.go
index 64997a2d8191..2e7b5a520966 100644
--- a/cli/command/formatter/volume_test.go
+++ b/cli/command/formatter/volume_test.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package formatter
 
 import (
diff --git a/cli/command/idresolver/idresolver.go b/cli/command/idresolver/idresolver.go
index 4bc2e4acabc5..73268d4657e7 100644
--- a/cli/command/idresolver/idresolver.go
+++ b/cli/command/idresolver/idresolver.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package idresolver
 
 import (
diff --git a/cli/command/image/inspect.go b/cli/command/image/inspect.go
index 2e3d5bf0862c..56a9cca3a78e 100644
--- a/cli/command/image/inspect.go
+++ b/cli/command/image/inspect.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package image
 
 import (
diff --git a/cli/command/inspect/inspector.go b/cli/command/inspect/inspector.go
index 4a6f21080740..76695788eb51 100644
--- a/cli/command/inspect/inspector.go
+++ b/cli/command/inspect/inspector.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package inspect
 
 import (
diff --git a/cli/command/network/formatter_test.go b/cli/command/network/formatter_test.go
index b7807cd53646..090d6b290037 100644
--- a/cli/command/network/formatter_test.go
+++ b/cli/command/network/formatter_test.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package network
 
 import (
diff --git a/cli/command/network/inspect.go b/cli/command/network/inspect.go
index 33dba10df7c0..5751bb2f3425 100644
--- a/cli/command/network/inspect.go
+++ b/cli/command/network/inspect.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package network
 
 import (
diff --git a/cli/command/node/formatter_test.go b/cli/command/node/formatter_test.go
index afa44981ae03..17f095cc96a5 100644
--- a/cli/command/node/formatter_test.go
+++ b/cli/command/node/formatter_test.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package node
 
 import (
diff --git a/cli/command/node/inspect.go b/cli/command/node/inspect.go
index 96abfd192755..79a5f3e07e1f 100644
--- a/cli/command/node/inspect.go
+++ b/cli/command/node/inspect.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package node
 
 import (
diff --git a/cli/command/plugin/formatter_test.go b/cli/command/plugin/formatter_test.go
index a5e1a4b1f7b6..8013df45af1b 100644
--- a/cli/command/plugin/formatter_test.go
+++ b/cli/command/plugin/formatter_test.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package plugin
 
 import (
diff --git a/cli/command/plugin/inspect.go b/cli/command/plugin/inspect.go
index c84711af2bbf..7696c1d0f256 100644
--- a/cli/command/plugin/inspect.go
+++ b/cli/command/plugin/inspect.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package plugin
 
 import (
diff --git a/cli/command/secret/inspect.go b/cli/command/secret/inspect.go
index 2b63ecc4b258..e0960151407d 100644
--- a/cli/command/secret/inspect.go
+++ b/cli/command/secret/inspect.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package secret
 
 import (
diff --git a/cli/command/service/formatter_test.go b/cli/command/service/formatter_test.go
index 574f57e30d9a..205b072b1e08 100644
--- a/cli/command/service/formatter_test.go
+++ b/cli/command/service/formatter_test.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package service
 
 import (
diff --git a/cli/command/service/inspect.go b/cli/command/service/inspect.go
index 16df0c100318..fe1da86b424e 100644
--- a/cli/command/service/inspect.go
+++ b/cli/command/service/inspect.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package service
 
 import (
diff --git a/cli/command/service/inspect_test.go b/cli/command/service/inspect_test.go
index 15f920927869..8b631f249c37 100644
--- a/cli/command/service/inspect_test.go
+++ b/cli/command/service/inspect_test.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package service
 
 import (
diff --git a/cli/command/service/opts.go b/cli/command/service/opts.go
index 2149241af26b..7a88e6213c68 100644
--- a/cli/command/service/opts.go
+++ b/cli/command/service/opts.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package service
 
 import (
diff --git a/cli/command/stack/loader/loader.go b/cli/command/stack/loader/loader.go
index 39810d883285..a876adab8b51 100644
--- a/cli/command/stack/loader/loader.go
+++ b/cli/command/stack/loader/loader.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package loader
 
 import (
diff --git a/cli/command/system/info.go b/cli/command/system/info.go
index cef7dc9856cb..b9a11751b463 100644
--- a/cli/command/system/info.go
+++ b/cli/command/system/info.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package system
 
 import (
diff --git a/cli/command/system/inspect.go b/cli/command/system/inspect.go
index bccc7dde44a5..e6d4ea2aae27 100644
--- a/cli/command/system/inspect.go
+++ b/cli/command/system/inspect.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package system
 
 import (
diff --git a/cli/command/trust/inspect.go b/cli/command/trust/inspect.go
index d7370bd09dcb..9b39a5a9b353 100644
--- a/cli/command/trust/inspect.go
+++ b/cli/command/trust/inspect.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package trust
 
 import (
diff --git a/cli/command/utils.go b/cli/command/utils.go
index 753f428aa089..b9da9bc4a6ad 100644
--- a/cli/command/utils.go
+++ b/cli/command/utils.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package command
 
 import (
diff --git a/cli/command/volume/inspect.go b/cli/command/volume/inspect.go
index 4bf35b26b84f..fa76857d89f5 100644
--- a/cli/command/volume/inspect.go
+++ b/cli/command/volume/inspect.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package volume
 
 import (
diff --git a/cli/compose/interpolation/interpolation.go b/cli/compose/interpolation/interpolation.go
index e84756dba68a..07d505872a8e 100644
--- a/cli/compose/interpolation/interpolation.go
+++ b/cli/compose/interpolation/interpolation.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package interpolation
 
 import (
diff --git a/cli/compose/interpolation/interpolation_test.go b/cli/compose/interpolation/interpolation_test.go
index 069d8d25491c..10bf19f77039 100644
--- a/cli/compose/interpolation/interpolation_test.go
+++ b/cli/compose/interpolation/interpolation_test.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package interpolation
 
 import (
diff --git a/cli/compose/loader/full-struct_test.go b/cli/compose/loader/full-struct_test.go
index 17536816df89..d44d84c11cb2 100644
--- a/cli/compose/loader/full-struct_test.go
+++ b/cli/compose/loader/full-struct_test.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package loader
 
 import (
diff --git a/cli/compose/loader/interpolate.go b/cli/compose/loader/interpolate.go
index d25936be869d..551e0c90e6ae 100644
--- a/cli/compose/loader/interpolate.go
+++ b/cli/compose/loader/interpolate.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package loader
 
 import (
diff --git a/cli/compose/loader/loader.go b/cli/compose/loader/loader.go
index a9b8f1f1f9cf..a3bd73fb71bc 100644
--- a/cli/compose/loader/loader.go
+++ b/cli/compose/loader/loader.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package loader
 
 import (
diff --git a/cli/compose/loader/loader_test.go b/cli/compose/loader/loader_test.go
index 0be15d2fa4af..039564e109bf 100644
--- a/cli/compose/loader/loader_test.go
+++ b/cli/compose/loader/loader_test.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package loader
 
 import (
diff --git a/cli/compose/loader/merge.go b/cli/compose/loader/merge.go
index 57bc2296b7c7..b4751d570f18 100644
--- a/cli/compose/loader/merge.go
+++ b/cli/compose/loader/merge.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package loader
 
 import (
diff --git a/cli/compose/loader/merge_test.go b/cli/compose/loader/merge_test.go
index e5aa3eab1387..5fda852e91c3 100644
--- a/cli/compose/loader/merge_test.go
+++ b/cli/compose/loader/merge_test.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package loader
 
 import (
diff --git a/cli/compose/schema/schema.go b/cli/compose/schema/schema.go
index 3481780c98dc..e7266399d4bf 100644
--- a/cli/compose/schema/schema.go
+++ b/cli/compose/schema/schema.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package schema
 
 import (
diff --git a/cli/compose/schema/schema_test.go b/cli/compose/schema/schema_test.go
index a8aebfe26550..27a10f5cc9f5 100644
--- a/cli/compose/schema/schema_test.go
+++ b/cli/compose/schema/schema_test.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package schema
 
 import (
diff --git a/cli/compose/template/template.go b/cli/compose/template/template.go
index f8e507a90b1d..dd884903e973 100644
--- a/cli/compose/template/template.go
+++ b/cli/compose/template/template.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package template
 
 import (
diff --git a/cli/compose/template/template_test.go b/cli/compose/template/template_test.go
index 040696990095..c741a6281355 100644
--- a/cli/compose/template/template_test.go
+++ b/cli/compose/template/template_test.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package template
 
 import (
diff --git a/cli/compose/types/types.go b/cli/compose/types/types.go
index ed2e10e85b77..69961850e078 100644
--- a/cli/compose/types/types.go
+++ b/cli/compose/types/types.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package types
 
 import (
diff --git a/cli/context/store/metadata_test.go b/cli/context/store/metadata_test.go
index fcb46c54f567..1e12364e719d 100644
--- a/cli/context/store/metadata_test.go
+++ b/cli/context/store/metadata_test.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package store
 
 import (
diff --git a/cli/context/store/metadatastore.go b/cli/context/store/metadatastore.go
index 62c3f82a6a45..9b45ea9250c2 100644
--- a/cli/context/store/metadatastore.go
+++ b/cli/context/store/metadatastore.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package store
 
 import (
diff --git a/cli/context/store/store.go b/cli/context/store/store.go
index 7101252303b5..192787b91308 100644
--- a/cli/context/store/store.go
+++ b/cli/context/store/store.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package store
 
 import (
diff --git a/cli/context/store/store_test.go b/cli/context/store/store_test.go
index 235870a95421..0b6b2d544e15 100644
--- a/cli/context/store/store_test.go
+++ b/cli/context/store/store_test.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package store
 
 import (
diff --git a/cli/context/store/storeconfig.go b/cli/context/store/storeconfig.go
index 9c93ecbab2b1..482a4ef70fe2 100644
--- a/cli/context/store/storeconfig.go
+++ b/cli/context/store/storeconfig.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package store
 
 // TypeGetter is a func used to determine the concrete type of a context or
diff --git a/cli/context/store/storeconfig_test.go b/cli/context/store/storeconfig_test.go
index e5b8c75686e5..efb4587c880d 100644
--- a/cli/context/store/storeconfig_test.go
+++ b/cli/context/store/storeconfig_test.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package store
 
 import (
diff --git a/cmd/docker/builder_test.go b/cmd/docker/builder_test.go
index 0ef79a65dde6..5941759babd7 100644
--- a/cmd/docker/builder_test.go
+++ b/cmd/docker/builder_test.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package main
 
 import (
diff --git a/templates/templates.go b/templates/templates.go
index deb043299dbe..e00dae4c08b7 100644
--- a/templates/templates.go
+++ b/templates/templates.go
@@ -1,3 +1,6 @@
+// FIXME(thaJeztah): remove once we are a module; the go:build directive prevents go from downgrading language version to go1.16:
+//go:build go1.19
+
 package templates
 
 import (