* lisp/progmodes/project.el:
(project-find-regexp): Add to the list of 'switch' commands.
(project-switch-project): Use call-interactively so that the
former can read its arguments.
* lisp/progmodes/project.el:
(project--transient-p) Remove, not needed.
(project-current): Move project-find based on the directory here.
(project--remove-from-project-list): Only write if the list changed.
(project-find-project): Rename to project-prompt-project-dir.
Simply return the directory selected by the user.
(project-switch-project-find-file): Remove.
(project-switch-project-dired): Rename to project-dired and make
it follow the convention of existing projec tcommands.
(project-switch-project-eshell): Ditto.
(project-switch-project): Instead of passing the project instance
to the command, just bind default-directory.
Practice shows that the vast majority of projects only use one main
root. The users of this API very often make this assumption as well.
The rest of the "roots" should be possible to express through
project-external-roots.
* lisp/progmodes/project.el: Update the commentary.
Only 4 non-obsolete generics now.
(project-root): Replacement for `project-roots'.
All callers updated. Implementations too.
(project-roots): Declare obsolete.
(project-external-roots): Simplify the docstring.
(project-ignores): Update the docstring.
(project-find-regexp): Omit the second arg to project-files.
(project--dir-ignores): Simplify.
(project-compile): Simplify, remove outdated comment.
* lisp/cedet/ede.el: Add a FIXME.
* lisp/progmodes/project.el (project-vc): Update the docstring.
(project-vc-merge-submodules): New user option.
(project-try-vc): Use it.
(project--submodule-p): Extract from project-try-vc.
The new packages state they require Emacs 26.3 to function, but a
small part of project.el breaks this "soft" rule: the two functions
requiring fileloop.el are incompatible with Emacs 26.3.
* lisp/jsonrpc.el: Tweak comment near Package-Requires.
* lisp/emacs-lisp/eldoc.el: Add Version and Package-Requires.
* lisp/progmodes/flymake.el: Add comment near Package-Requires.
* lisp/progmodes/project.el: Add Version and Package-Requires.
* lisp/progmodes/xref.el: Add Version and Package-Requires.
* lisp/progmodes/project.el (project--files-in-directory): Run
local DIR directory names through 'expand-file-name', so that "~/"
is expanded, in case the shell doesn't or the shell's notion of
the home directory is different from that of Emacs. (Bug#40940)
* lisp/progmodes/project.el (project--find-regexp-in-files):
Signal user-error when passed an empty list of files.
* lisp/progmodes/xref.el (xref-matches-in-files):
Make sure FILES is not empty.
* lisp/progmodes/project.el (project-find-regexp): Require 'grep'
to be able to call 'grep-read-files'.
(project-search, project-query-replace-regexp): Doc fixes.
* doc/emacs/maintaining.texi (Projects): New section.
* doc/emacs/emacs.texi (Top): Add "Projects" to the detailed menu.
* lisp/progmodes/project.el (project-files):
Remove (require 'xref).
(project--files-in-directory): Add it here instead.
(project-find-regexp, project-or-external-find-regexp): And here.
For 'xref--show-xrefs'.
* lisp/progmodes/xref.el (xref-matches-in-files): Extract from
project--find-regexp-in-files.
* lisp/dired-aux.el (dired-do-find-regexp): Also use it here.
* lisp/progmodes/project.el (project-try-vc): Do not treat a Git
submodule as a project root, go up to the parent repo.
(project--git-submodules): New function.
(project--vc-list-files): Use it. Recurse into submodules.
* lisp/progmodes/project.el (project-files): New method.
Implementation for VC projects that uses 'git ls-files' or 'hg
status --all' for listing. With gratitude to Tassilo Horn who has
done most of the legwork and wrote the first version of the code
(https://lists.gnu.org/archive/html/emacs-devel/2019-10/msg00069.html).
(project--vc-list-files): New function, to be used by the above.
(project--find-regexp-in-files):
Silence warnings about nonexistent files.
* lisp/progmodes/xref.el (xref--fetcher): New variable.
(xref--xref-buffer-mode-map): Add binding for 'g'.
(xref--revert-xref-buffer): New command.
(xref--show-xref-buffer): Accept a function as the first argument.
(xref--show-xrefs): Same.
(xref--find-xrefs): Pass the above a fetcher function.
* lisp/progmodes/project.el (project-find-regexp)
(project-or-external-find-regexp): Same.
* lisp/dired-aux.el (dired-do-find-regexp): Same.
To hopefully resolve a long-running discussion
(https://lists.gnu.org/archive/html/emacs-devel/2019-05/msg00162.html).
* lisp/progmodes/project.el (project-read-file-name-function):
New variable.
(project--read-file-absolute, project--read-file-cpd-relative):
New functions, possible values for the above.
(project-find-file-in): Use the introduced variable.
(project--completing-read-strict): Retain just the logic that fits
the name.
* lisp/progmodes/project.el (project-find-regexp): Don't pass
project's ignores to project--files-in-directory. The FILES glob
should be enough, and we don't want to prohibit searching inside
ignored directories this way (it can be counter-intuitive).
* lisp/progmodes/project.el (project--find-regexp-in-files):
Add an explicit '-e' before the pattern. Fixing the ability to
search for '--'. Reported by Juri Linkov <juri@linkov.net>.
