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authorTom Ryder <tom@sanctum.geek.nz>2017-11-04 22:41:15 +1300
committerTom Ryder <tom@sanctum.geek.nz>2017-11-04 22:41:15 +1300
commit1175a6d4338b43b8521617606f44a3c29a2ec0ff (patch)
tree2c15a1f3416f4c547fd1834e2991eb60c4cf18c9 /vim/plugin/copy_linebreak.vim
parentSimplify shell linting code with single vars (diff)
downloaddotfiles-1175a6d4338b43b8521617606f44a3c29a2ec0ff.tar.gz
dotfiles-1175a6d4338b43b8521617606f44a3c29a2ec0ff.zip
Add short-circuit boilerplate to plugins
Set a g:loaded_* flag to prevent repeated reloads, and refuse to load at all if &compatible is set or if required features are missing. Some more accommodating plugins avoid the problems 'compatible' causes by saving its value at startup into a script variable, setting the option to the Vim default, and then restoring it when the plugin is done, to prevent any of its flags from interfering in the plugin code: let s:save_cpo = &cpo set cpo&vim ... let &cpo = s:save_cpo unlet s:save_cpo I don't want this boilerplate, so I'm going to do what Tim Pope's modules seem to, and just have the plugin refuse to do a single thing if 'compatible' is set.
Diffstat (limited to 'vim/plugin/copy_linebreak.vim')
-rw-r--r--vim/plugin/copy_linebreak.vim50
1 files changed, 27 insertions, 23 deletions
diff --git a/vim/plugin/copy_linebreak.vim b/vim/plugin/copy_linebreak.vim
index 5c8d5f77..faeb1617 100644
--- a/vim/plugin/copy_linebreak.vim
+++ b/vim/plugin/copy_linebreak.vim
@@ -6,32 +6,36 @@
" Author: Tom Ryder <tom@sanctum.geek.nz>
" License: Same as Vim itself
"
-if has('eval')
+if exists('g:loaded_copy_linebreak')
+ \ || !has('linebreak')
+ \ || &compatible
+ finish
+endif
+let g:loaded_copy_linebreak = 1
- " Define function
- function! s:CopyLinebreak()
+" Define function
+function! s:CopyLinebreak()
- " If linebreak is on, turn it off
- if &l:linebreak
- setlocal nolinebreak linebreak?
- setlocal showbreak=
- if exists('&breakindent')
- setlocal nobreakindent
- endif
+ " If linebreak is on, turn it off
+ if &l:linebreak
+ setlocal nolinebreak linebreak?
+ setlocal showbreak=
+ if exists('&breakindent')
+ setlocal nobreakindent
+ endif
- " If it's off, turn it on
- else
- setlocal linebreak linebreak?
- setlocal showbreak<
- if exists('&breakindent')
- setlocal breakindent
- endif
+ " If it's off, turn it on
+ else
+ setlocal linebreak linebreak?
+ setlocal showbreak<
+ if exists('&breakindent')
+ setlocal breakindent
endif
+ endif
- endfunction
+endfunction
- " Provide mapping proxy to the function just defined
- noremap <silent> <unique>
- \ <Plug>CopyLinebreak
- \ :<C-U>call <SID>CopyLinebreak()<CR>
-endif
+" Provide mapping proxy to the function just defined
+noremap <silent> <unique>
+ \ <Plug>CopyLinebreak
+ \ :<C-U>call <SID>CopyLinebreak()<CR>