image path: Use new MSYS2 environment variable #668
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1) Issue background
a) on 'mingw32' terminal
b) executable 'vim' in /usr/bin
c) executable 'node' in /mingw32/bin.
d) plugin 'markdow-preview.nvim' in ~/.vim/plugged
e) app/route.js:68 fileDir is a unix path
f) image missing in browser preview
2) Issue fixing
add code to app/route.js:
a) extract info from environment variable MINGW_HOME
b) prefixing imgPath with sth. like "E:\msys64\"
3) No issue alternative
a) on 'ucrt64' terminal
b) executable 'nvim' in /ucrt64/bin
c) executable 'node' in /ucrt64/bin
d) plugin 'markdown-preview.nvim' in ~/.vim/plugged
e) app/route.js:68 fileDir is a win path
f) image ok in browser preview
1) Based on info from MINGW_HOME is error-prone. Maybe the document is located on a windisk other than that of msys2 installation. 2) use 'cygpath.exe' to convert unix-like 'fileDir' to win-like one. 3) the conversion operation must follow the first assignment of 'fileDir'.
After a full upgrade of MSYS2 system, there is no environment variable MINGW_HOME any more. It is replaced by MSYSTEM in this revision.
Manually update the reference to environment MSYS2 variable
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The original MSYS2 environment variable MINGW_HOME is missing after a full upgrade of MSYS2. Use MSYSTEM instead.