m-vim_plugins/vim-gitgutter
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Handle file which does not exist in diff base

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If g:gitgutter_diff_base has been set and the file being processed does
not exist in that branch/commit, ensure that every line is marked as
added - this is how git-diff behaves.

Fixes #855.
This commit is contained in:
Andy Stewart
2023-04-27 16:16:54 +01:00
parent 3475e974d6
commit 2ee95686c5
3 changed files with 37 additions and 0 deletions
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2
autoload/gitgutter.vim
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@@ -46,6 +46,8 @@ function! gitgutter#process_buffer(bufnr, force) abort
call gitgutter#debug#log('Not tracked: '.gitgutter#utility#file(a:bufnr))
catch /gitgutter assume unchanged/
call gitgutter#debug#log('Assume unchanged: '.gitgutter#utility#file(a:bufnr))
catch /gitgutter file unknown in base/
let diff = gitgutter#diff#hunk_header_showing_every_line_added(a:bufnr)
catch /gitgutter diff failed/
call gitgutter#debug#log('Diff failed: '.gitgutter#utility#file(a:bufnr))
call gitgutter#hunk#reset(a:bufnr)

20
autoload/gitgutter/diff.vim
View File

@@ -81,6 +81,20 @@ function! gitgutter#diff#run_diff(bufnr, from, preserve_full_diff) abort
throw 'gitgutter assume unchanged'
endif
" If we are diffing against a specific branch/commit, handle the case
" where a file exists on the current branch but not in/at the diff base.
" We have to handle it here because the approach below (using git-show)
" doesn't work for this case.
if !empty(g:gitgutter_diff_base)
let index_name = gitgutter#utility#get_diff_base(a:bufnr).':'.gitgutter#utility#repo_path(a:bufnr, 1)
let cmd = g:gitgutter_git_executable.' '.g:gitgutter_git_args.' --no-pager show '.index_name
let cmd = gitgutter#utility#cd_cmd(a:bufnr, cmd)
call gitgutter#utility#system(cmd)
if v:shell_error
throw 'gitgutter file unknown in base'
endif
endif
" Wrap compound commands in parentheses to make Windows happy.
" bash doesn't mind the parentheses.
let cmd = '('
@@ -376,6 +390,12 @@ function! gitgutter#diff#hunk_diff(bufnr, full_diff, ...)
endfunction
function! gitgutter#diff#hunk_header_showing_every_line_added(bufnr)
let buf_line_count = getbufinfo(a:bufnr)[0].linecount
return '@@ -0,0 +1,'.buf_line_count.' @@'
endfunction
function! s:write_buffer(bufnr, file)
let bufcontents = getbufline(a:bufnr, 1, '$')