Commit Graph

17 Commits

Author SHA1 Message Date
Brian Goff 209e9c0c13 cp: Do not block transfer on writing to terminal
This moves all the terminal writing to a goroutine that updates the
terminal periodically.
In our MITM copier we just use an atomic to add to the total number of
bytes read/written, the goroutine reads the total and updates the
terminal as needed.

Signed-off-by: Brian Goff <cpuguy83@gmail.com>
(cherry picked from commit eb392ff4ce)
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
2023-04-03 22:31:41 +00:00
Brian Goff ce68ce7ae8 cp: Make gocyclo happy
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
(cherry picked from commit b9a1b0928a)
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
2023-04-03 22:31:34 +00:00
Brian Goff c28cb35c42 cp: Reduce number of progress updates
Only show progress updates after a time threshold has elapsed in order
to reduce the number of writes to the terminal.
This improves readability of the progress.

Also moves cursor show/hide into the progress printer to reduce chances
if messing up the user's terminal in case of cancellation.

Signed-off-by: Brian Goff <cpuguy83@gmail.com>
(cherry picked from commit 90b7bc36d4)
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
2023-04-03 22:31:23 +00:00
Brian Goff 948dfa91c9 cp: reduce branching in progress printer
This just makes it easier to reason about what is happening.

Signed-off-by: Brian Goff <cpuguy83@gmail.com>
(cherry picked from commit efd011b793)
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
2023-04-03 22:31:13 +00:00
Brian Goff f813c9639f cp: Improve tty flashing on progress updates
- Instead of rewriting the entire line every time only clear and write
the parts that changed.
- Hide the cursor while writing progress

Both these things make the progress updates significantly easier to
read.

Signed-off-by: Brian Goff <cpuguy83@gmail.com>
(cherry picked from commit ccae6e9299)
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
2023-04-03 22:31:06 +00:00
Brian Goff 97d91f13aa cp: do not emit progress if stderr is not a term
This fixes a case where a non-tty will have control characters + the log
line for every single read operation.

Signed-off-by: Brian Goff <cpuguy83@gmail.com>
(cherry picked from commit f27927d934)
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
2023-04-03 22:30:56 +00:00
Sebastiaan van Stijn 424401233f
cli/command/container: use strings.Cut
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2022-12-29 15:19:24 +01:00
Sebastiaan van Stijn 82427d1a07
format (GoDoc) comments with Go 1.19 to prepare for go updates
Older versions of Go do not format these comments, so we can already
reformat them ahead of time to prevent gofmt linting failing once
we update to Go 1.19 or up.

Result of:

    gofmt -s -w $(find . -type f -name '*.go' | grep -v "/vendor/")

With some manual adjusting.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2022-07-19 19:10:16 +02:00
Sebastiaan van Stijn 80b1285fec cli: use custom annotation for aliases
Cobra allows for aliases to be defined for a command, but only allows these
to be defined at the same level (for example, `docker image ls` as alias for
`docker image list`). Our CLI has some commands that are available both as a
top-level shorthand as well as `docker <object> <verb>` subcommands. For example,
`docker ps` is a shorthand for `docker container ps` / `docker container ls`.

This patch introduces a custom "aliases" annotation that can be used to print
all available aliases for a command. While this requires these aliases to be
defined manually, in practice the list of aliases rarely changes, so maintenance
should be minimal.

As a convention, we could consider the first command in this list to be the
canonical command, so that we can use this information to add redirects in
our documentation in future.

Before this patch:

    docker images --help

    Usage:  docker images [OPTIONS] [REPOSITORY[:TAG]]

    List images

    Options:
      -a, --all             Show all images (default hides intermediate images)
      ...

With this patch:

    docker images --help

    Usage:  docker images [OPTIONS] [REPOSITORY[:TAG]]

    List images

    Aliases:
      docker image ls, docker image list, docker images

    Options:
      -a, --all             Show all images (default hides intermediate images)
      ...

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2022-06-28 17:32:09 +02:00
Maximillian Fan Xavier 12370ad1f4
Add progress bar to copy into and from container
Co-authored-by: Sebastiaan van Stijn <github@gone.nl>
Signed-off-by: Maximillian Fan Xavier <maximillianfx@gmail.com>
2021-04-24 13:24:19 +02:00
Philipp Schmied 7632776b35 Prevent overwriting irregular files (cp, save, export commands)
Signed-off-by: Philipp Schmied <pschmied@schutzwerk.com>
2019-02-07 09:17:35 +01:00
Kir Kolyshkin 6f8070deb2 Switch from x/net/context to context
Since go 1.7, "context" is a standard package. Since go 1.9,
x/net/context merely provides some types aliased to those in
the standard context package.

The changes were performed by the following script:

for f in $(git ls-files \*.go | grep -v ^vendor/); do
	sed -i 's|golang.org/x/net/context|context|' $f
	goimports -w $f
	for i in 1 2; do
		awk '/^$/ {e=1; next;}
			/\t"context"$/ {e=0;}
			{if (e) {print ""; e=0}; print;}' < $f > $f.new && \
				mv $f.new $f
		goimports -w $f
	done
done

[v2: do awk/goimports fixup twice]
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
2018-05-11 16:49:43 -07:00
Daniel Nephin b7b62ca26a Adding unit tests for cp
Signed-off-by: Daniel Nephin <dnephin@docker.com>
2017-10-30 18:33:28 -04:00
Daniel Nephin c0d004f7cf Update gometalinter
and enable the new WarnUnmatchedDirective to warn if a nolint is unnecessary.
remove some unnecessary nolint

Signed-off-by: Daniel Nephin <dnephin@docker.com>
2017-10-26 12:21:02 -04:00
Sebastiaan van Stijn 0082310aa5
Fixes for updated dependencies
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2017-09-29 17:45:31 +02:00
Daniel Nephin 10641c2aae Update imports.
Signed-off-by: Daniel Nephin <dnephin@docker.com>
2017-04-17 18:07:56 -04:00
Daniel Nephin 1630fc40f8 Import docker/docker/cli
Signed-off-by: Daniel Nephin <dnephin@gmail.com>
2017-04-17 17:40:59 -04:00