Dave Williams <d...@opensourcesolutions.co.uk> writes:
> check-ignore currently shows how .gitignore rules would treat untracked
> paths. Tracked paths do not generate useful output. This prevents
> debugging of why a path became tracked unexpectedly unless that path is
> first removed from the index with git rm --cached <path>
>
> This option (-i, --ignore-index) simply by-passes the check for the path
> being in the index and hence allows tracked path to be checked too.
>
> Whilst this behaviour deviates from the characteristics of git add and
> git status its use case is unlikely to cause any user confusion.
>
> Signed-off-by: Dave Williams <d...@opensourcesolutions.co.uk>
> ---
> Documentation/git-check-ignore.txt | 6 ++++++
> builtin/check-ignore.c | 10 +++++++---
> 2 files changed, 13 insertions(+), 3 deletions(-)
>
> diff --git a/Documentation/git-check-ignore.txt
> b/Documentation/git-check-ignore.txt
> index d2df487..bb878ff 100644
> --- a/Documentation/git-check-ignore.txt
> +++ b/Documentation/git-check-ignore.txt
> @@ -45,6 +45,12 @@ OPTIONS
> not be possible to distinguish between paths which match a
> pattern and those which don't.
>
> +-i, --ignore-index::
> + Don't look in the index when undertaking the checks. This means
> + the results deviate from those seen by git add and git status
> + but is useful when understanding why a path became tracked by
> + e.g. git add . and was not ignored as expected by the rules.
Please think twice after you write "This means", "What this means
is", etc. to see if you can get rid of sentence before that, which
needed such clarification. If the sentence can stand on its own,
and what follows "This means" is also useful information, then it is
a sign that "What this means is" is better rephrased as "Note that".
Also, I think `git add .` should be quoted to make it clear where
the sample command begins and ends. Using a pair of `` would be the
most appropriate here.
> OUTPUT
> ------
>
> diff --git a/builtin/check-ignore.c b/builtin/check-ignore.c
> index 4a8fc70..c8f6ae1 100644
> --- a/builtin/check-ignore.c
> +++ b/builtin/check-ignore.c
> @@ -5,7 +5,7 @@
> #include "pathspec.h"
> #include "parse-options.h"
>
> -static int quiet, verbose, stdin_paths, show_non_matching;
> +static int quiet, verbose, stdin_paths, show_non_matching, ignore_index;
> static const char * const check_ignore_usage[] = {
> "git check-ignore [options] pathname...",
> "git check-ignore [options] --stdin < <list-of-paths>",
> @@ -24,6 +24,8 @@ static const struct option check_ignore_options[] = {
> N_("input paths are terminated by a null character")),
> OPT_BOOLEAN('n', "non-matching", &show_non_matching,
> N_("show non-matching input paths")),
> + OPT_BOOLEAN('i', "ignore-index", &ignore_index,
> + N_("ignore index when checking")),
> OPT_END()
> };
>
> @@ -82,7 +84,9 @@ static int check_ignore(struct dir_struct *dir,
> * should not be ignored, in order to be consistent with
> * 'git status', 'git add' etc.
> */
> - seen = find_pathspecs_matching_against_index(pathspec);
> + if (!ignore_index) {
> + seen = find_pathspecs_matching_against_index(pathspec);
> + }
> for (i = 0; pathspec[i]; i++) {
> path = pathspec[i];
> full_path = prefix_path(prefix, prefix
> @@ -90,7 +94,7 @@ static int check_ignore(struct dir_struct *dir,
> full_path = check_path_for_gitlink(full_path);
> die_if_path_beyond_symlink(full_path, prefix);
> exclude = NULL;
> - if (!seen[i]) {
> + if (ignore_index || !seen[i]) {
> exclude = last_exclude_matching(dir, full_path, &dtype);
> }
> if (!quiet && (exclude || show_non_matching))
Hmph, if ignoring what is in the index is what the new feature wants
to do, why does it even need to touch check_ignore() function at all
and add a global variable ignore_index to keep track of that state?
Isn't it sufficient to skip the call to read_cache() when that
option is given?
You would need to add tests for this, too.
Thanks.
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