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runtime(filetype): make shell filetype detection more robust

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closes: #17063

Signed-off-by: Aliaksei Budavei <0x000c70@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
This commit is contained in:
Aliaksei Budavei
2025-04-10 21:52:14 +02:00
committed by Christian Brabandt
parent ec032de646
commit 5c84d12df1
2 changed files with 16 additions and 10 deletions
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15
runtime/autoload/dist/ft.vim vendored
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@ -3,7 +3,7 @@ vim9script
# Vim functions for file type detection
#
# Maintainer: The Vim Project <https://github.com/vim/vim>
# Last Change: 2025 Jan 25
# Last Change: 2025 Apr 10
# Former Maintainer: Bram Moolenaar <Bram@vim.org>
# These functions are moved here from runtime/filetype.vim to make startup
@ -875,16 +875,16 @@ export def SetFileTypeSH(name: string, setft = true): string
if setft && expand("<amatch>") =~ g:ft_ignore_pat
return ''
endif
if name =~ '\<csh\>'
if name =~ '^csh$' || name =~ '^#!.\{-2,}\<csh\>'
# Some .sh scripts contain #!/bin/csh.
return SetFileTypeShell("csh", setft)
elseif name =~ '\<tcsh\>'
elseif name =~ '^tcsh$' || name =~ '^#!.\{-2,}\<tcsh\>'
# Some .sh scripts contain #!/bin/tcsh.
return SetFileTypeShell("tcsh", setft)
elseif name =~ '\<zsh\>'
elseif name =~ '^zsh$' || name =~ '^#!.\{-2,}\<zsh\>'
# Some .sh scripts contain #!/bin/zsh.
return SetFileTypeShell("zsh", setft)
elseif name =~ '\<ksh\>'
elseif name =~ '^ksh$' || name =~ '^#!.\{-2,}\<ksh\>'
b:is_kornshell = 1
if exists("b:is_bash")
unlet b:is_bash
@ -892,7 +892,8 @@ export def SetFileTypeSH(name: string, setft = true): string
if exists("b:is_sh")
unlet b:is_sh
endif
elseif exists("g:bash_is_sh") || name =~ '\<bash\>' || name =~ '\<bash2\>'
elseif exists("g:bash_is_sh") || name =~ '^bash2\=$' ||
\ name =~ '^#!.\{-2,}\<bash2\=\>'
b:is_bash = 1
if exists("b:is_kornshell")
unlet b:is_kornshell
@ -900,7 +901,7 @@ export def SetFileTypeSH(name: string, setft = true): string
if exists("b:is_sh")
unlet b:is_sh
endif
elseif name =~ '\<sh\>' || name =~ '\<dash\>'
elseif name =~ '^\%(da\)\=sh$' || name =~ '^#!.\{-2,}\<\%(da\)\=sh\>'
# Ubuntu links "sh" to "dash", thus it is expected to work the same way
b:is_sh = 1
if exists("b:is_kornshell")