Soft-deprecate prefix-less dirconfig entriesdirconfig-refactor

The implicit "any unprefixed line is an ignore pattern" rule is the
last source of subtle parser surprises — it's the reason why a
single leading space silently changes a +-keep into a literal ignore
pattern, and it makes typo'd comments slip through as ignores.

Mark these lines as :legacy-ignore in the classifier, record them
in a new prefixless-ignore slot on the dirconfig struct, and emit a
one-time warning per project listing the offending entries. The
behavior is unchanged — the lines still go into the ignore list —
but users now get a nudge to write them as -entry. The warning can
be silenced via projectile-warn-on-prefixless-dirconfig-lines.

1 files changed, 2 insertions, 1 deletions

diff --git a/CHANGELOG.md b/CHANGELOG.md
index e4e33a2..24b0cd1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,7 +4,8 @@
 
 ### Changes
 
-* `projectile-parse-dirconfig-file' now returns a `projectile-dirconfig' struct (with `keep', `ignore', and `ensure' slots) instead of a positional 3-tuple. External callers should use the accessors (`projectile-dirconfig-keep' etc.) rather than `car'/`cadr'/`caddr'.
+* `projectile-parse-dirconfig-file' now returns a `projectile-dirconfig' struct (with `keep', `ignore', `ensure', and `prefixless-ignore' slots) instead of a positional 3-tuple. External callers should use the accessors (`projectile-dirconfig-keep' etc.) rather than `car'/`cadr'/`caddr'.
+* Soft-deprecate prefix-less ignore entries in `.projectile'. Lines without a `+'/`-'/`!' prefix are still treated as ignore patterns for backward compatibility, but a one-time warning is now shown for each project that uses them. Set `projectile-warn-on-prefixless-dirconfig-lines' to nil to silence.
 
 ### New features