The parser silently turns every keep entry into a directory via file-name-as-directory, which means a user-typed +*.json or +/foo.txt becomes "*.json/" or "foo.txt/" and quietly never matches anything. Spot the obvious misuses (anything containing *, ?, or [) at parse time and emit a warning so the user can correct the file or move the pattern to an ignore/ensure rule.
The existing parser tests stub insert-file-contents; nothing exercises the full IO path. Add three sandbox-based tests: a mixed +/-/!/no-prefix file, a non-ASCII round-trip, and a file with no trailing newline. These guard against IO-layer regressions that the stubbed tests can't see.
Under alien indexing the dirconfig file is silently ignored, which is the most common confusion in the issue tracker (#1322, #1075, #1534, #1941). Show a one-shot display-warning the first time we index a project where alien mode meets a non-empty .projectile. The new projectile-warn-when-dirconfig-is-ignored option lets users who already understand the trade-off silence the warning.
The parser docstring only described + and - prefixes even though the function returns a 3-tuple including the ! ensure bucket. Fill that in, and pull the path-vs-glob distinction out of the prose in projects.adoc into a subsection of its own — that ambiguity is at the root of recurring confusion (#740, #1109, #680, #1941).
The mtime-keyed cache around projectile-parse-dirconfig-file had no direct coverage. Cover the four invariants that matter: a cache hit on repeat calls, a re-parse when mtime advances, no caching of a nil result for a missing file, and entry removal via projectile-invalidate-cache (the path that previously crashed in #1854).
A user accidentally typing " -path/" or " # comment" in .projectile would have the line silently routed to the ignore bucket with the prefix character left intact, because the parser dispatched on the first character of the line without trimming. Skip leading spaces and tabs before the pcase so the +/-/! and comment-prefix markers are matched regardless of indentation. Reported in #1508.
Fixes #1815 Fixes #1715 When two projects share the same name (e.g. both named "src"), projectile-generate-process-name now detects the collision and falls back to using the abbreviated project path in the buffer name instead of just the project name.
Fixes #1959 projectile-ignored-file-p now checks projectile-globally-ignored-file-suffixes in addition to projectile-globally-ignored-files and file patterns. Previously the suffix check only happened in projectile-remove-ignored which is used by hybrid indexing but not native indexing.
Closes #1684 With a prefix argument, projectile-dired, projectile-dired-other-window, and projectile-dired-other-frame now prompt for a known project to open in dired, rather than always using the current project.
Closes #1227 projectile-replace now intersects the files found by rg/ag/grep with the project's file list from projectile-dir-files, ensuring that files ignored via .projectile or other ignore rules are excluded from replacement. Previously the external search tool's results were used directly, which could include backup files and other ignored entries.