macOS doesn't ship with the GNU version of `date`, which
causes the command to fail if the `--rfc-3339 ns` format option
is used.
Given that we don't need the build-time with nanosecond precision,
this patch changes the format used, so that the CLI binary can be
built on the host (outside of a container);
Before this change, `make binary` would fail:
DISABLE_WARN_OUTSIDE_CONTAINER=1 make binary
WARNING: binary creates a Linux executable. Use cross for macOS or Windows.
./scripts/build/binary
make: *** [binary] Error 1
With this change, the binary can be built on the host:
DISABLE_WARN_OUTSIDE_CONTAINER=1 make binary
WARNING: binary creates a Linux executable. Use cross for macOS or Windows.
./scripts/build/binary
Building statically linked build/docker-darwin-amd64
While the previous version formatted (and parsed) the date with nanoseconds precision,
that level of precision is not actually used;
```go
func reformatDate(buildTime string) string {
t, errTime := time.Parse(time.RFC3339Nano, buildTime)
if errTime == nil {
return t.Format(time.ANSIC)
}
return buildTime
}
```
Both the old, and new input will yield the same output:
```go
fmt.Println(reformatDate("2019-12-31T13:41:44.846741804+00:00"))
// Tue Dec 31 13:41:44 2019
fmt.Println(reformatDate("2019-12-31T13:41:44Z"))
// Tue Dec 31 13:41:44 2019
```
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
docker/cli
This repository is the home of the cli used in the Docker CE and Docker EE products.
Development
docker/cli is developed using Docker.
Build a linux binary:
$ make -f docker.Makefile binary
Build binaries for all supported platforms:
$ make -f docker.Makefile cross
Run all linting:
$ make -f docker.Makefile lint
List all the available targets:
$ make help
In-container development environment
Start an interactive development environment:
$ make -f docker.Makefile shell
In the development environment you can run many tasks, including build binaries:
$ make binary
Legal
Brought to you courtesy of our legal counsel. For more context, please see the NOTICE document in this repo.
Use and transfer of Docker may be subject to certain restrictions by the United States and other governments.
It is your responsibility to ensure that your use and/or transfer does not violate applicable laws.
For more information, please see https://www.bis.doc.gov
Licensing
docker/cli is licensed under the Apache License, Version 2.0. See LICENSE for the full license text.