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Fix handling of file renames

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Both `:file` and `:saveas` rename the current file.

`:file` does not write the newly named file to disk, and keeps the same
buffer.  It fires a single `BufFilePre` / `BufFilePost` pair of
autocommands:

    `BufFilePre`     buffer
    `BufFilePost`    buffer

`:saveas` does write the newly named file to disk, in a new buffer.  It
fires two pairs of `BufFilePre` / `BufFilePost` autocommands:

    `BufFilePre`     original buffer
    `BufFilePre`     new buffer
    `BufFilePost`    original buffer
    `BufFilePost`    new buffer

In both cases the cached path needs to be cleared.

See #860, #551.
Fixes #865.
This commit is contained in:
Andy Stewart
2023-07-31 13:37:11 +01:00
parent 458603713d
commit 68f16eb21f
2 changed files with 60 additions and 2 deletions
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33
plugin/gitgutter.vim
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@@ -265,6 +265,35 @@ function! s:next_tick(cmd)
call timer_start(1, {-> execute(a:cmd)})
endfunction
function! s:on_buffilepre(bufnr)
if !exists('s:renaming')
let s:renaming = []
let s:gitgutter_was_enabled = gitgutter#utility#getbufvar(a:bufnr, 'enabled')
endif
let s:renaming += [a:bufnr]
endfunction
function! s:on_buffilepost(bufnr)
if len(s:renaming) > 1
if s:renaming[0] != a:bufnr
throw 'gitgutter rename error' s:renaming[0] a:bufnr
endif
unlet s:renaming[0]
return
endif
" reset cached values
GitGutterBufferDisable
if s:gitgutter_was_enabled
GitGutterBufferEnable
endif
unlet s:renaming
unlet s:gitgutter_was_enabled
endfunction
" Autocommands {{{
augroup gitgutter
@@ -309,8 +338,8 @@ augroup gitgutter
autocmd ColorScheme * call gitgutter#highlight#define_highlights()
autocmd BufFilePre * let b:gitgutter_was_enabled = gitgutter#utility#getbufvar(expand('<abuf>'), 'enabled') | GitGutterBufferDisable
autocmd BufFilePost * if b:gitgutter_was_enabled | GitGutterBufferEnable | endif | unlet b:gitgutter_was_enabled
autocmd BufFilePre * call s:on_buffilepre(expand('<abuf>'))
autocmd BufFilePost * call s:on_buffilepost(expand('<abuf>'))
autocmd QuickFixCmdPre *vimgrep* let b:gitgutter_was_enabled = gitgutter#utility#getbufvar(expand('<abuf>'), 'enabled') | GitGutterBufferDisable
autocmd QuickFixCmdPost *vimgrep* if b:gitgutter_was_enabled | GitGutterBufferEnable | endif | unlet b:gitgutter_was_enabled