Backport #3629: expand_path doesn't expand "~a"

• Status: Closed
• Assignee: yugui (Yuki Sonoda)

[tmat (Tomas Matousek)]

=begin
ENV["HOME"] = 'C:/xxx'
Dir.chdir 'C:/temp' do
p File.expand_path("a")
p File.expand_path("~/a")
p File.expand_path("~a")
end

Prints:

"C:/temp/a"
"C:/xxx/a"
"~a"

I'd expect it to print:
"C:/temp/a"
"C:/xxx/a"
"c:/temp/~a"

"~a" should be considered a regular file name and as such should be prefixed with the current directory path like any other file name.
=end

[luislavena (Luis Lavena)]

=begin
I believe this is related to [ruby-core:18319]

http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-core/18319

=end

[darix (Marcus Rückert)]

=begin
On 2010-07-30 06:57:25 +0900, Tomas Matousek wrote:

"~a" should be considered a regular file name and as such should be prefixed with the current directory path like any other file name.

it shouldnt "a" means "home directory of user 'a'". '/' is just a
shorthand for '~/'

on linux you get:

File.expand_path('~a')
ArgumentError: user a doesn't exist

maybe that user check is skipped on windows?

 darix

--
openSUSE - SUSE Linux is my linux
openSUSE is good for you
www.opensuse.org

=end

[tmat (Tomas Matousek)]

=begin
I see. Then on Windows it might check for existence of directory ENV[HOME]/../a. I guess that might be a good approximation.
=end

[luislavena (Luis Lavena)]

=begin
Well, no.

Normally HOME is not defined in Windows, instead things like USERPROFILE points to your local profile folder (Document and Settings or Users).

Other times, in case of corporate environment where you have a Roaming profile, you have setup HOMEDRIVE and HOMEPATH.

HOMEDRIVE+HOMEPATH might point to a particular folder that warrants is yours, but there is no granted that ../ will be the common location for other users.

=end

[nobu (Nobuyoshi Nakada)]

=begin
Fixed at r28796.

BTW, please avoid filing Bug issues to 1.9.1, unless it is particular to 1.9.1.
In general, 1.9.1 should accept Backport issues only.
=end

[nobu (Nobuyoshi Nakada)]

• Status changed from Open to Closed

=begin

=end

[nobu (Nobuyoshi Nakada)]

• Category set to core

=begin
Sorry, it was r28795.
=end

[nobu (Nobuyoshi Nakada)]

• Category set to core
• Status changed from Closed to Assigned
• Assignee set to yugui (Yuki Sonoda)
• Priority changed from Normal to 3

=begin

=end

[tmat (Tomas Matousek)]

=begin
So how do you detect whether a user dir exists or not or Windows then? Or do you throw on Windows for any user other than the current one?
=end

[kosaki (Motohiro KOSAKI)]

I don't understand why we have to backport low priority issue. Can anyone explain it?

[nobu (Nobuyoshi Nakada)]

I'm not sure if it's worth backporting to 1.9.2, so had left the decision to yugui.

[nobu (Nobuyoshi Nakada)]

Sorry, 1.9.2 already has it.
And I don't think this can be backported to 1.9.1.

[nobu (Nobuyoshi Nakada)]

• Status changed from Assigned to Closed