In Windows 10 (cmd) I'm trying to copy a file from a subfolder containing a space character in its name.
First I tried to use quotation marks:
FROM jfloff/alpine-python:2.7
COPY "Folder 1/File.txt" "Dir 1"
Error message:
failed to process "\"Folder": unexpected end of statement while looking for matching double-quote
"JSON" format (skipped the first line):
COPY ["Folder 1/File.txt" "Dir 1"]
Error message:
failed to process "[\"Folder": unexpected end of statement while looking for matching double-quote
Trying to escape with a single backslash:
COPY "Folder\ 1/File.txt" "Dir\ 1"
Error message:
failed to process "\"Folder\\": unexpected end of statement while looking for matching double-quote
Trying to escape with a double backslash:
COPY "Folder\\ 1/File.txt" "Dir\\ 1"
Error message:
failed to process "\"Folder\\\\": unexpected end of statement while looking for matching double-quote
Also tried a suggestion to use %20 instead of space:
COPY ["Folder%201/File.txt" "Dir%201"]
Error message:
COPY failed: no source File
Escape character replacement:
# escape=`
COPY "Folder` 1/File.txt" "Dir 1"
Error message:
failed to process "\"Folder`": unexpected end of statement while looking for matching double-quote
The same, but without quotes:
#escape=`
COPY Folder` 1/File.txt Dir` 1
Error message:
COPY failed: stat /var/lib/docker/tmp/docker-builder082039614/Folder: no such file or directory
Method with packing / unpacking using a tar archive (I'm not happy with that idea).
It should be possible, shouldn't it?
Maybe you can use ARG to help you, like this:
Dockerfile:
FROM jfloff/alpine-python:2.7
ARG src="Folder 1/File.txt"
ARG target="Dir 1/"
COPY ${src} ${target}
BTW, a / has to be add at the end of Dir 1 if you treat really want to treat it as a folder.
And, JSON format is also ok, just you miss ,, it should be:
FROM jfloff/alpine-python:2.7
COPY ["Folder 1/File.txt", "Dir 1/"]
Update for your comments:
In official guide, it said:
When copying files or directories that contain special characters (such as [ and ]), you need to escape those paths following the Golang rules to prevent them from being treated as a matching pattern.
So, for your case, it should be:
FROM jfloff/alpine-python:2.7
ARG src="[[]Folder 1]/__SLIM_TEMPLATE.mm"
ARG target="[Folder 1]/"
COPY ${src} ${target}
Or:
FROM jfloff/alpine-python:2.7
COPY ["[[]Folder 1]/__SLIM_TEMPLATE.mm", "[Folder 1]/"]
agree it's annoying to get files from docker that have special characters, had similar experience and after hours of try and errors, I came up with this simple solution that I now use since then.
tar/zip the files and then "docker cp" them easily without having to worry about dozens of []'"..
tar files in your container machine:
zipped
or unzipped
Then copy them to local directories in your windows machine.
open cmd in windows run
check if files have been transferred in d:/TARGETDIR/