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Diffstat (limited to 'fish/functions/_fzf_preview_changed_file.fish')
| -rw-r--r-- | fish/functions/_fzf_preview_changed_file.fish | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/fish/functions/_fzf_preview_changed_file.fish b/fish/functions/_fzf_preview_changed_file.fish new file mode 100644 index 000000000..78dd5611f --- /dev/null +++ b/fish/functions/_fzf_preview_changed_file.fish @@ -0,0 +1,49 @@ +# helper for _fzf_search_git_status +# arg should be a line from git status --short, e.g. +# MM functions/_fzf_preview_changed_file.fish +# D README.md +# R LICENSE -> "New License" +function _fzf_preview_changed_file --argument-names path_status --description "Show the git diff of the given file." + # remove quotes because they'll be interpreted literally by git diff + # no need to requote when referencing $path because fish does not perform word splitting + # https://fishshell.com/docs/current/fish_for_bash_users.html + set -f path (string unescape (string sub --start 4 $path_status)) + # first letter of short format shows index, second letter shows working tree + # https://git-scm.com/docs/git-status/2.35.0#_short_format + set -f index_status (string sub --length 1 $path_status) + set -f working_tree_status (string sub --start 2 --length 1 $path_status) + + set -f diff_opts --color=always + + if test $index_status = '?' + _fzf_report_diff_type Untracked + _fzf_preview_file $path + else if contains {$index_status}$working_tree_status DD AU UD UA DU AA UU + # Unmerged statuses taken directly from git status help's short format table + # Unmerged statuses are mutually exclusive with other statuses, so if we see + # these, then safe to assume the path is unmerged + _fzf_report_diff_type Unmerged + git diff $diff_opts -- $path + else + if test $index_status != ' ' + _fzf_report_diff_type Staged + + # renames are only detected in the index, never working tree, so only need to test for it here + # https://stackoverflow.com/questions/73954214 + if test $index_status = R + # diff the post-rename path with the original path, otherwise the diff will show the entire file as being added + set -f orig_and_new_path (string split --max 1 -- ' -> ' $path) + git diff --staged $diff_opts -- $orig_and_new_path[1] $orig_and_new_path[2] + # path currently has the form of "original -> current", so we need to correct it before it's used below + set path $orig_and_new_path[2] + else + git diff --staged $diff_opts -- $path + end + end + + if test $working_tree_status != ' ' + _fzf_report_diff_type Unstaged + git diff $diff_opts -- $path + end + end +end |