Use uv_fs_realpath() instead.
It seems that uv_fs_realpath() has some problems on non-Linux platforms:
- macOS and other BSDs: this function will fail with UV_ELOOP if more
than 32 symlinks are found while resolving the given path. This limit
is hardcoded and cannot be sidestepped.
- Windows: while this function works in the common case, there are a
number of corner cases where it doesn't:
- Paths in ramdisk volumes created by tools which sidestep the Volume
Manager (such as ImDisk) cannot be resolved.
- Inconsistent casing when using drive letters.
- Resolved path bypasses subst'd drives.
Ref: https://docs.libuv.org/en/v1.x/fs.html#c.uv_fs_realpath
I don't know if the old implementation that uses uv_chdir() and uv_cwd()
also suffers from the same problems.
- For the ELOOP case, chdir() seems to have the same limitations.
- On Windows, Vim doesn't use anything like chdir() either. It uses
_wfullpath(), while libuv uses GetFinalPathNameByHandleW().
If the filename passed to vim_FullName() is a relative directory, and
does not exist, it is appended to the current working directory. Since
the return value of append_path() was ignored, and if the buffer length
was too small to fit getcwd() + dirname(filename), it would still try to
append the basename(filename).
This was manifesting as a failure in test/unit/path_spec.lua in:
itp('fails and uses filename if given filename contains non-existing directory', ..
This failure occurs when running the tests from directory with a short
path such as: /work/src/nv
test/unit/path_spec.lua:420: Expected objects to be the same.
Passed in:
(string) '/work/src/nv/test.file'
Expected:
(string) 'non_existing_dir/test.file'
This return value for the second call to append_path() to append
basename(filename) was checked, and this is where it would fail for
normal / longer getcwd()s.
Problem:
Not all Lua code is checked by stylua. Automating code-style is an
important mechanism for reducing time spent on accidental
(non-essential) complexity.
Solution:
- Enable lintlua for `test/unit/` directory.
- TODO: only `test/functional/` remains unchecked.
previous: 45fe4d11ad
previous: 517f0cc634
- Move vimoption_T to option.h
- option_defs.h is for option-related types
- option_vars.h corresponds to Vim's option.h
- option_defs.h and option_vars.h don't include each other
Before Vim patch 8.2.3468 relative_directory is never used in the
resulting path name, so whether it has a trailing slash didn't matter.
Now path_full_dir_name() appends a non-existing relative directory to
the current directory name, so the trailing slash needs to be kept.
Problem: Problem with :cd when editing file in non-existent directory. (Yee
Cheng Chin)
Solution: Prepend the current directory to get the full path. (closesvim/vim#8903)
c6376c7984
Problem: Cannot recover from a swap file.
Solution: Do not expand environment variables in the swap file name.
Do not check the extension when we already know a file is a swap
file. (Ken Takata, closes 4415, closesvim/vim#4369)
99499b1c05
Used
sed -r -i -e '/ helpers =/ s/$/\nlocal itp = helpers.gen_itp(it)/; s/^(\s*)it\(/\1itp(/' test/unit/**/*_spec.lua
to alter all tests. Locally they all run fine now.
Reasoning:
1. General: state from one test should not affect other tests.
2. Local: travis build is failing with something which may be an output of
garbage collector. This should prevent state of the garbage collector from
interferring as well.
A call to lfs.mkdir instead of lfs.rmdir left a temp directory hanging
around. Changed to do proper setup/teardown using {before,after}_each.
Helped-by: Scott Prager <splinterofchaos@gmail.com>
Suggested-by: Scott Prager <splinterofchaos@gmail.com>
