vundle mangles paths on Windows 10, and fails to install plugins

[WaterSibilantFalling]

When running PluginUpdates or 'PluginInstall` I get:

[2018-12-19 12:08:43] Plugin godlygeek/tabular
[2018-12-19 12:08:43] $ git clone --recursive "https://github.com/godlygeek/tabular.git" "C:\Users\stephenm\.vim\bundle\tabular"
[2018-12-19 12:08:43] > Cloning into 'C:Usersstephenm.vimbundletabular'...
[2018-12-19 12:08:43] > fatal: Invalid path 'C:/Usersstephenm.vimbundletabular' No such file or directory
[2018-12-19 12:08:43] > 
[2018-12-19 12:08:45] 
[2018-12-19 12:08:45] Plugin gabrielelana/vim-markdown
[2018-12-19 12:08:45] $ git clone --recursive "https://github.com/gabrielelana/vim-markdown.git" "C:\Users\stephenm\.vim\bundle\vim-markdown"
[2018-12-19 12:08:45] > Cloning into 'C:Usersstephenm.vimbundlevim-markdown' ...
[2018-12-19 12:08:45] > fatal: Invalid path **'C:/Usersstephenm.vimbundlevim-markdown'** : No such file or directory
[2018-12-19 12:08:45] > 
[2018-12-19 12:08:46] 

C:Usersstephenm.vimbundletabular' should be C:\Users\stephenm.vim\bundle\tabular'
C:Usersstephenm.vimbundlevim-markdown should be C:\Users\stephenm.vim\bundle\vim-markdown

C:\Users\stephenm.vim\bundle\ exists and is writeable

I now see that it may be an error with using the MSYS64 linux-like (i.e. sh) shell on windows, as messages gives errors about

E484: Can't open file C:/msys64/tmp/VIoE70.tmp

which is incorrect as the directory is writeable. The MSYS64 terminal also takes that form of file path (with forward slashes rather than back slashes)

same error during PluginInstall

[2018-12-19 13:04:03] Plugin python-mode/python-mode
[2018-12-19 13:04:03] $ git clone --recursive "https://github.com/python-mode/python-mode.git" "C:\Users\stephenm\.vim\bundle\python-mode"
[2018-12-19 13:04:03] > Cloning into 'C:Usersstephenm.vimbundlepython-mode'...  [<-- here]
[2018-12-19 13:04:03] > Submodule 'submodules/astroid' (https://github.com/PyCQA/astroid) registered for path 'submodules/astroid'
[2018-12-19 13:04:03] > Submodule 'submodules/autopep8' (https://github.com/hhatto/autopep8) registered for path 'submodules/autopep8'
[2018-12-19 13:04:03] > Submodule 'submodules/mccabe' (https://github.com/PyCQA/mccabe) registered for path 'submodules/mccabe'
[2018-12-19 13:04:03] > Submodule 'submodules/pycodestyle' (https://github.com/PyCQA/pycodestyle) registered for path 'submodules/pycodestyle'
[2018-12-19 13:04:03] > Submodule 'submodules/pydocstyle' (https://github.com/PyCQA/pydocstyle) registered for path 'submodules/pydocstyle'
[2018-12-19 13:04:03] > Submodule 'submodules/pyflakes' (https://github.com/PyCQA/pyflakes) registered for path 'submodules/pyflakes'
[2018-12-19 13:04:03] > Submodule 'submodules/pylama' (https://github.com/klen/pylama) registered for path 'submodules/pylama'
[2018-12-19 13:04:03] > Submodule 'submodules/pylint' (https://github.com/PyCQA/pylint) registered for path 'submodules/pylint'
[2018-12-19 13:04:03] > Submodule 'submodules/rope' (https://github.com/python-rope/rope) registered for path 'submodules/rope'
[2018-12-19 13:04:03] > Submodule 'submodules/six' (https://github.com/benjaminp/six.git) registered for path 'submodules/six'
[2018-12-19 13:04:03] > Submodule 'submodules/snowball_py' (https://github.com/diraol/snowball_py) registered for path 'submodules/snowball_py'
[2018-12-19 13:04:03] > Cloning into 'C:/Usersstephenm.vimbundlepython-mode/submodules/astroid'...
[2018-12-19 13:04:03] > Cloning into 'C:/Usersstephenm.vimbundlepython-mode/submodules/autopep8'...
[2018-12-19 13:04:03] > Cloning into 'C:/Usersstephenm.vimbundlepython-mode/submodules/mccabe'...
[2018-12-19 13:04:03] > Cloning into 'C:/Usersstephenm.vimbundlepython-mode/submodules/pycodestyle'...
[2018-12-19 13:04:03] > Cloning into 'C:/Usersstephenm.vimbundlepython-mode/submodules/pydocstyle'...
[2018-12-19 13:04:03] > Cloning into 'C:/Usersstephenm.vimbundlepython-mode/submodules/pyflakes'...
[2018-12-19 13:04:03] > Cloning into 'C:/Usersstephenm.vimbundlepython-mode/submodules/pylama'...    [<-- here]
[2018-12-19 13:04:03] > Cloning into 'C:/Usersstephenm.vimbundlepython-mode/submodules/pylint'...    [<-- here]
[2018-12-19 13:04:03] > Cloning into 'C:/Usersstephenm.vimbundlepython-mode/submodules/rope'...   [<-- here]
[2018-12-19 13:04:03] > Cloning into 'C:/Usersstephenm.vimbundlepython-mode/submodules/six'...   [<-- here]
[2018-12-19 13:04:03] > Cloning into 'C:/Usersstephenm.vimbundlepython-mode/submodules/snowball_py'...   [<-- here]
[2018-12-19 13:04:03] > Submodule path 'submodules/astroid': checked out '5b5cd7acbecaa9b587b07de27a3334a2ec4f2a79'
[2018-12-19 13:04:03] > Submodule path 'submodules/autopep8': checked out '159bb88843e298534e46914da242e680a1c8c47d'
[2018-12-19 13:04:03] > Submodule path 'submodules/mccabe': checked out 'c2f5b386458cfda0aa4239f4d11b4e5e75027bda'
[2018-12-19 13:04:03] > Submodule path 'submodules/pycodestyle': checked out '566cdc0cb22e5530902e456d0b315403ebab980c'
[2018-12-19 13:04:03] > Submodule path 'submodules/pydocstyle': checked out 'eea4ca179553189a7b8a62d6085f15b50bb98e35'
[2018-12-19 13:04:03] > Submodule path 'submodules/pyflakes': checked out '45fc732466056fe35c85936ff25491df7905c597'
[2018-12-19 13:04:03] > Submodule path 'submodules/pylama': checked out '837ecd3d7a8597ab5f28bc83072de68e16470f1e'
[2018-12-19 13:04:03] > Submodule path 'submodules/pylint': checked out '66cb32187c040f82dd067bc0d226b2f105bf6c38'
[2018-12-19 13:04:03] > Submodule path 'submodules/rope': checked out '95aa2749f978d579fda03478dece4d611c2323f9'
[2018-12-19 13:04:03] > Submodule path 'submodules/six': checked out '84d07dd19523a3a41385f23a744a126d00a72c79'
[2018-12-19 13:04:03] > Submodule path 'submodules/snowball_py': checked out '404cab3e069cd5c2c891c19404fbd85bd285c021'
[2018-12-19 13:04:03] > 
[2018-12-19 13:04:45] 
[2018-12-19 13:04:45] Helptags:
[2018-12-19 13:04:45] :helptags C:\Users\stephenm\.vim\bundle\Vundle.vim/doc/
[2018-12-19 13:04:45] :helptags C:\Users\stephenm\.vim\bundle\syntastic/doc/
[2018-12-19 13:04:45] :helptags C:\Users\stephenm\.vim\bundle\tcomment_vim/doc/
[2018-12-19 13:04:45] :helptags C:\Users\stephenm\.vim\bundle\vim-lion/doc/
[2018-12-19 13:04:45] :helptags C:\Users\stephenm\.vim\bundle\tabular/doc/

[WaterSibilantFalling]

Partial solution:

When I run the git clone in a terminal, it works fine

git clone --recursive "https://github.com/gabrielelana/vim-markdown.git" "C:\Users\stephenm\.vim\bundle\vim-markdown"

Then I can do PluginUpdate from within Vim.

... ah, no, the plugin will not work: still mangled paths.

[gucoi]

i have the same problem-can't open uio39a.tmp file

[WaterSibilantFalling]

Came here to post this bug . . . and realized that I had already done so last year.

[gucoi]

whatever thanks,i uninstall the vim because i can't solve the bug,i use the vscode now! it's really good.

[jmfranck]

You need to add set shellslash to the top of your ~/_vimrc fix the mangling. I have updated the Windows instructions on the wiki here.

I believe the install instructions were outdated. Because the problems were with the install instructions and not with the code, I think this issue can be closed.