* lisp/progmodes/project.el: Depend on xref. Bump the version.
* lisp/progmodes/xref.el: Remove 'project' from the list of
dependencies. Depending on Emacs 26.3 already ensures that some
version is available. Bump the version.
(xref--process-file-region): Move from project.el with a rename.
Update the sole caller.
(xref-backend-references): Make compatible with old project.el.
Update the docstring.
* lisp/progmodes/xref.el (xref-backend-apropos): Rename this
generic's second arg to PATTERN, to clarify that it should be
handled entirely in the backend, with no pre-processing by the
command.
(xref-find-apropos): Update accordingly, but keep compatibility
with backends in older Emacs versions.
(xref-apropos-regexp): Extract from xref-find-apropos.
* lisp/progmodes/etags.el (xref-backend-apropos): Use it here.
* lisp/progmodes/elisp-mode.el (xref-backend-apropos): And here.
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(project-compile): Simplify, remove outdated comment.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.
Hopefully this aids in getting the package correctly listed in GNU
ELPA.
* lisp/progmodes/xref.el (Version): Bump to 1.0.1
(Package-Requires): Require project 0.1.1.
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--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.
* etc/NEWS: New entry.
* lisp/progmodes/etags.el (tags-case-fold-search):
Mark as safe-local.
(find-tag--completion-ignore-case):
Extract from tags-completion-at-point-function, find-tag-tag and
etags--xref-find-definitions.
(xref-backend-identifier-completion-ignore-case):
New method. Use it here as well.
* lisp/progmodes/xref.el
(xref-backend-identifier-completion-ignore-case): New generic.
(xref--read-identifier): Use it here.
* 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/xref.el (xref-references-in-directory): Rename
from xref-collect-references. Update the sole caller.
(xref-matches-in-directory): Rename from xref-collect-matches.
Update all callers (all of them are in the /tests/ dir).
* test/lisp/progmodes/xref-tests.el (xref-tests-data-dir):
Don't use the EMACS_TEST_DIRECTORY env var. It doesn't work when
running interactively.
* lisp/progmodes/xref.el (xref--last-file-buffer):
Rename from xref--last-visiting-buffer. Update users.
(xref--find-file-buffer): Rename from xref--find-buffer-visiting
to match the standard function that gets called inside. Ditto.
* lisp/progmodes/xref.el (xref--imenu-prev-index-position)
(xref--imenu-extract-index-name): Add functions to get imenu support.
(xref--xref-buffer-mode): Set imenu variables to the new functions.
* etc/NEWS: Add corresponding entry (bug#36974).
* lisp/progmodes/xref.el (xref-show-xrefs-function): Make into a
defcustome (bug#29206).
* lisp/progmodes/xref.el (xref-show-definitions-function): Ditto.
Copyright-paperwork-exempt: yes
* lisp/progmodes/xref.el:
(xref--display-buffer-in-other-window)
(xref--display-buffer-in-window): New functions.
(xref--show-pos-in-buf): Use them (bug#33870)
* lisp/progmodes/xref.el (xref--show-xref-buffer)
(xref--show-defs-buffer-at-bottom): Move major mode calls earlier.
So that local variable values are not lost.
* lisp/progmodes/xref.el (xref-pop-to-location):
Rename from xref-pop-to-location. So that third-party
xref-show-definitions-function implementations can use it safely
(bug#36144). Update all callers.
* lisp/progmodes/xref.el (xref--transient-buffer-mode-map):
New variable.
(xref--transient-buffer-mode): New major mode.
(xref--button-map): Remove the RET binding (it was unnecessary in
the first place).
(xref--show-common-initialize):
Extract from xref--show-xref-buffer.
(xref--show-defs-buffer-at-bottom): New function.
* lisp/progmodes/xref.el (xref--show-xref-buffer): Expect the
first argument to always be a function (bug#35702). Handle a
FETCHED-XREFS entry in ALIST.
(xref--show-defs-buffer): Update accordingly.
(xref--create-fetcher): Extract from xref--find-xrefs.
(xref--find-definitions): Use it.
* 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.
* lisp/progmodes/xref.el (xref--show-defs-buffer): New function.
Move a bit of logic from xref--show-defs to make it more
customizable.
(xref--push-markers): New function, extracted from
xref--show-xrefs.
(xref-show-definitions-function): Set to the new function.
* lisp/progmodes/xref.el (xref-show-definitions-function):
New variable.
(xref--show-defs): Split off from xref--show-xrefs.
(xref--find-definitions): Use it.
(xref--not-found-error): New function.
(xref--show-xrefs): Simplify. Show the list buffer even when
there is just one item in the list. Remove the last argument.
* lisp/dired-aux.el (dired-do-find-regexp): Update accordingly.
