David Kågedal <davidk@lysator.liu.se> writes:

quoted text
> Use prefix (C-u) to diff all marked files.
>
> Signed-off-by: David Kågedal <davidk@lysator.liu.se>
> ---
>  contrib/emacs/git.el |   62 +++++++++++++++++++++++++++++---------------------
>  1 files changed, 36 insertions(+), 26 deletions(-)
>
> Here is an updated patch that udpate the stage diff commands as
> well. It doesn't touch git-diff-file-merge-head since that already
> uses prefix arguments. Don't know if there is a solution to that.

Yeah, me neither.  But otherwise looks quite straightforward conversion to
me.  Alexandre?

quoted text
> diff --git a/contrib/emacs/git.el b/contrib/emacs/git.el
> index c1cf1cb..de9d0f4 100644
> --- a/contrib/emacs/git.el
> +++ b/contrib/emacs/git.el
> @@ -771,6 +771,11 @@ Return the list of files that haven't been handled."
>                (setq file (pop files))
>              (setq node (ewoc-next status node))))))))
>  
> +(defun git-current-file ()
> +  "Return the file at point."
> +  (unless git-status (error "Not in git-status buffer."))
> +  (ewoc-data (ewoc-locate git-status)))
> +
>  (defun git-marked-files ()
>    "Return a list of all marked files, or if none a list containing just the file at cursor position."
>    (unless git-status (error "Not in git-status buffer."))
> @@ -1137,10 +1142,11 @@ Return the list of files that haven't been handled."
>    (when (eq (window-buffer) (current-buffer))
>      (shrink-window-if-larger-than-buffer)))
>  
> -(defun git-diff-file ()
> -  "Diff the marked file(s) against HEAD."
> -  (interactive)
> -  (let ((files (git-marked-files)))
> +(defun git-diff-file (arg)
> +  "Diff the current file against HEAD.
> +With a prefix arg, diff the marked files instead."
> +  (interactive "P")
> +  (let ((files (if arg (git-marked-files) (list (git-current-file)))))
>      (git-setup-diff-buffer
>       (apply #'git-run-command-buffer "*git-diff*" "diff-index" "-p" "-M" "HEAD" "--" (git-get-filenames files)))))
>  
> @@ -1154,31 +1160,35 @@ Return the list of files that haven't been handled."
>       (apply #'git-run-command-buffer "*git-diff*" "diff-index" "-p" "-M"
>              (or (nth (1- arg) merge-heads) "HEAD") "--" (git-get-filenames files)))))
>  
> -(defun git-diff-unmerged-file (stage)
> -  "Diff the marked unmerged file(s) against the specified stage."
> -  (let ((files (git-marked-files)))
> +(defun git-diff-unmerged-file (stage arg)
> +  "Diff the files against the specified stage."
> +  (let ((files (if arg (git-marked-files) (list (git-current-file)))))
>      (git-setup-diff-buffer
>       (apply #'git-run-command-buffer "*git-diff*" "diff-files" "-p" stage "--" (git-get-filenames files)))))
>  
> -(defun git-diff-file-base ()
> -  "Diff the marked unmerged file(s) against the common base file."
> -  (interactive)
> -  (git-diff-unmerged-file "-1"))
> -
> -(defun git-diff-file-mine ()
> -  "Diff the marked unmerged file(s) against my pre-merge version."
> -  (interactive)
> -  (git-diff-unmerged-file "-2"))
> -
> -(defun git-diff-file-other ()
> -  "Diff the marked unmerged file(s) against the other's pre-merge version."
> -  (interactive)
> -  (git-diff-unmerged-file "-3"))
> -
> -(defun git-diff-file-combined ()
> -  "Do a combined diff of the marked unmerged file(s)."
> -  (interactive)
> -  (git-diff-unmerged-file "-c"))
> +(defun git-diff-file-base (arg)
> +  "Diff the current file against the common base file.
> +With a prefix arg, diff the marked files instead."
> +  (interactive "P")
> +  (git-diff-unmerged-file "-1" arg))
> +
> +(defun git-diff-file-mine (arg)
> +  "Diff the current file against my pre-merge version.
> +With a prefix arg, diff the marked files instead."
> +  (interactive "P")
> +  (git-diff-unmerged-file "-2" arg))
> +
> +(defun git-diff-file-other (arg)
> +  "Diff the current file against the other's pre-merge version.
> +With a prefix arg, diff the marked files instead."
> +  (interactive "P")
> +  (git-diff-unmerged-file "-3" arg))
> +
> +(defun git-diff-file-combined (arg)
> +  "Do a combined diff of the marked unmerged file(s).
> +With a prefix arg, diff the marked files instead."
> +  (interactive "P")
> +  (git-diff-unmerged-file "-c" arg))
>  
>  (defun git-diff-file-idiff ()
>    "Perform an interactive diff on the current file."
> -- 
> 1.6.0.rc2.7.gbf8a
>
>
> -- 
> David Kågedal
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