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Author SHA1 Message Date
Paul Eggert
53da55b8cc Merge from origin/emacs-26
9226cf3254 Fix bug in recent styled_format change
fa92f0c447 Cleanup emacs-lisp-mode's use of Flymake
0d0265bf50 Fix @include directive in Flymake doc
295457ae52 Move read-multiple-choice to its own library
560dd9b573 * src/process.c (syms_of_process): Remove duplicated call ...
2017-10-06 10:35:07 -07:00
João Távora
fa92f0c447 Cleanup emacs-lisp-mode's use of Flymake
* lisp/progmodes/elisp-mode.el (elisp-flymake--checkdoc-1):
Delete.
(elisp-flymake-checkdoc): Incorporate old
elisp-flymake--checkdoc-1.
(elisp-flymake--byte-compile-done): Simplify.  Don't cleanup
here.
(elisp-flymake-byte-compile): Remove spurious interactive spec.
Simplify.  Cleanup on every possible exit.
2017-10-06 18:12:58 +01:00
Mark Oteiza
295457ae52 Move read-multiple-choice to its own library
* lisp/emacs-lisp/rmc.el: New file.
* lisp/emacs-lisp/subr-x.el (read-multiple-choice): Remove.
* lisp/gnus/message.el:
* lisp/net/nsm.el: Change required library.
2017-10-06 10:42:06 -04:00
Stefan Monnier
11f9cb522f Merge emacs-26 2017-10-06 09:50:54 -04:00
Lele Gaifax
9655937da4 Fix typos in Flymake documentation
* doc/misc/flymake.texi (Syntax check statuses)
(Adding support for a new syntax check tool)
(Implementation overview, Locating the buildfile): Fix typos.

* lisp/progmodes/flymake-proc.el (flymake-proc--report-fn)
(flymake-proc--find-possible-master-files):Fix typos.
(flymake-proc--panic)
(flymake-proc-legacy-flymake): Fix function reference in doc.

* lisp/progmodes/flymake.el (flymake-error)
(flymake-diagnostic-functions): Fix typos.
(flymake-diagnostic-types-alist): Rephrase and fix typos.
(flymake--backend-state): Fix typos and rephrase.
(flymake--handle-report): Delete empty line.
(flymake--disable-backend)
(flymake--run-backend): Fix typos.
(flymake-goto-next-error, flymake-goto-prev-error): Rephrase.
2017-10-06 14:09:49 +01:00
Eli Zaretskii
e5bff696bc Revert last change in 'shr-descend'
* lisp/net/shr.el (shr-descend): Revert the part of the last
change which introduced calls to shr-indirect-call into this
function.  Add a comment explaining the rationale for that.
(Bug#28402)
2017-10-06 15:42:22 +03:00
João Távora
6b88f78aa1 Don't error when turning on Flymake with no known backends
Leave it to the mode line indicator to inform the user that there
is still some configuration to do.

* lisp/progmodes/flymake.el (flymake-mode): Simplify.
2017-10-06 00:07:53 +01:00
João Távora
03eab7a05e Delete a Flymake obsolete alias that can't possibly work
The function `flymake-ler-make-ler' can't possibly work as an backward
compatible interface to existing extensinos (even purely hypothetical
ones, since none are known).  This is because every diagnostic
considered by Flymake has to passed to a report-fn function.

* lisp/progmodes/flymake.el (flymake-ler-make-ler): Delete.
2017-10-06 00:07:03 +01:00
Gemini Lasswell
9a10c8713b Fix dynamic binding wrapper in iter-lambda (bug#25965)
* lisp/emacs-lisp/generator.el (cps--make-dynamic-binding-wrapper):
Remove extra evaluation of form.
* test/lisp/emacs-lisp/generator-tests.el
(cps-iter-lambda-with-dynamic-binding): New test.
2017-10-05 12:43:15 -07:00
Rasmus
2a32ee1fbc Update Org to v9.1.2
Please note this is a bugfix release.  See etc/ORG-NEWS for details.
2017-10-05 21:30:05 +02:00
Alan Mackenzie
57ab49f7da Fix irregularities with CC Mode fontification, particularly with "known types"
* lisp/progmodes/cc-fonts.el (c-font-lock-declarators): Introduce a new
optional parameter, template-class.  In "class <X = Y>", fontify "Y" as a
type.
(c-font-lock-single-decl): New variable template-class, set to non-nil when we
have a construct like the above.  Pass this as argument to
c-font-lock-declarators.
(c-font-lock-cut-off-declarators): Check more rigorously that a declaration
being processed starts before the function's starting position.
(c-complex-decl-matchers): Remove the redundant clause which fontified "types
preceded by, e.g., "struct"".

* lisp/progmodes/cc-langs.el (c-template-typename-kwds)
(c-template-typename-key): New lang defconsts and defvar.
2017-10-05 17:16:10 +00:00
Eli Zaretskii
bd5326f879 Fix breakage due to recent change in tabulated-list-print-entry
* lisp/emacs-lisp/tabulated-list.el (tabulated-list-printer):
Update the doc string.
(tabulated-list-print-entry): Revert to using only 2 arguments.
Update the doc string.
(tabulated-list-entry-lnum-width): New defvar.
(tabulated-list-print): Compute the width of line-number display
once, then store that value in tabulated-list-entry-lnum-width,
for tabulated-list-printer to use.  (Bug#28704)
2017-10-05 17:57:58 +03:00
Gemini Lasswell
0c8f4e5ea1 * lisp/ses.el (ses-print-cell): Fix alignment of text cells. (Bug#27653) 2017-10-05 16:49:34 +03:00
Alexander Gramiak
c625fb645a Set xterm click count to 1 even with no last click
* lisp/xt-mouse.el (xterm-mouse-event): Move the check for
the last click so that click-count is initialized properly.
Handle the value of t for double-click-time.
(Bug#28658)
2017-10-05 13:50:02 +03:00
Vasilij Schneidermann
e3f4b71c9d Support indirection for all shr-tag-* calls
The 'shr-external-rendering-functions' variable was previously only
honored in the shr-descend function, now all direct calls to the
shr-tag-* functions have been replaced by a call to
'shr-indirect-call' which tries using an alternative rendering
function first.

* lisp/net/shr.el (shr-indirect-call): New helper function.
(shr-descend, shr-tag-object, shr-tag-video):
(shr-collect-extra-strings-in-table): Fix callers to call via
shr-indirect-call.  (Bug#28402)
2017-10-05 13:00:13 +03:00
Eli Zaretskii
3c4ff63bea Speed up list-packages when 'visual' line numbers are displayed
* lisp/emacs-lisp/tabulated-list.el (tabulated-list-printer):
Update the doc string.
(tabulated-list-print-entry): Accept an additional optional
argument INDENT.  Update the doc string.
(tabulated-list-print): Compute the width of line-number display
once, then call tabulated-list-printer with that value as 3rd
argument.  (Bug#28704)
2017-10-05 12:41:36 +03:00
João Távora
7a1133f1ff Misc. minor adjustments to Flymake
- Add a half-decent minor-mode menu;
- Fix "waiting for backends" mode line message;
- Adjust the flymake-diag-region API;
- Autoload the flymake-log macro;
- Auto-disable the legacy backend in more situations;
- Fix a couple of warnings in legacy backend.

* lisp/progmodes/flymake-proc.el
(flymake-proc--diagnostics-for-pattern): Use new
flymake-diag-region.

* lisp/progmodes/flymake-proc.el
(flymake-proc-legacy-flymake): Do error when no
buffer-file-name or not writable.
(flymake-proc-legacy-flymake)
(flymake-proc-simple-cleanup): Don't reference flymake-last-change-time

* lisp/progmodes/flymake.el (flymake-diag-region):
Autoload.  Take buffer as first argument.

* lisp/progmodes/flymake.el (flymake-switch-to-log-buffer):
New command.
(flymake-menu): Add a simple menu.
(flymake--mode-line-format): Use menu.  Fix message.  Switch to
log buffer when clicking exceptional warnings.
2017-10-05 03:09:12 +01:00
Alan Mackenzie
4e0b67ed27 Fontify untyped function declarations in C Mode correctly.
Also correct two bugs where deleting WS at a BOL could leave an untyped
function declaration unfontified.

* lisp/progmodes/cc-engine.el (c-find-decl-spots): Don't set the flag
"top-level" when we're in a macro.
(c-forward-decl-or-cast-1): Recognize top-level "foo(bar)" or "foo()" in C
Mode as a implicitly typed function declaration.
(c-just-after-func-arglist-p): Don't get confused by "defined (foo)" inside a
macro.  It's not a function plus arglist.

* lisp/progmodes/cc-langs.el (c-cpp-expr-functions-key): New defconst and
defvar.

* lisp/progmodes/cc-mode.el (c-fl-decl-end): After c-forward-declarator, move
over any following parenthesis expression (i.e. parameter list).
(c-change-expand-fl-region): When c-new-END is at a BOL, include that line in
the returned region, to cope with deletions at column 0.
2017-10-04 17:34:27 +00:00
Michael Albinus
0b558b4acb * lisp/net/tramp.el (tramp-tramp-file-p): Use `string-match-p'.
Reported by Clément Pit-Claudel <cpitclaudel@gmail.com>.
2017-10-04 11:48:37 +02:00
Paul Eggert
fdbaebde08 ; Spelling fixes 2017-10-03 16:05:05 -07:00
Michael Albinus
92045f4546 Add file name handler support for file-system-info
* doc/lispref/files.texi (Magic File Names): Add file-system-info.

* etc/NEWS: Mention get-free-disk-space working on remote systems.

* lisp/files.el (get-free-disk-space): Do not block on remote systems.

* src/w32fns.c (Ffile_system_info):
* src/fileio.c (Ffile_system_info): Call file name handler if exists.
(syms_of_fileio): Add Qfile_system_info.
2017-10-03 16:15:08 +02:00
Michael Albinus
4ac5ac50c9 Merge branch 'emacs-26' of git.sv.gnu.org:/srv/git/emacs into emacs-26 2017-10-03 16:08:04 +02:00
Michael Albinus
a9ac20c179 Add support for `file-system-info' in Tramp
* lisp/net/tramp.el (tramp-file-name-for-operation):
Add `file-system-info'.

* lisp/net/tramp-adb.el (tramp-adb-handle-file-system-info): New defun.
(tramp-adb-file-name-handler-alist): Use it.

* lisp/net/tramp-gvfs.el (tramp-gvfs-file-system-attributes)
(tramp-gvfs-file-system-attributes-regexp): New defconst.
(tramp-gvfs-handle-file-system-info): New defun.
(tramp-gvfs-file-name-handler-alist): Use it.
(tramp-gvfs-get-directory-attributes): Fix property name.
(tramp-gvfs-get-root-attributes): Support also file system attributes.

* lisp/net/tramp-sh.el (tramp-sh-handle-file-system-info): New defun.
(tramp-sh-file-name-handler-alist): Use it.
(tramp-sh-handle-insert-directory): Insert size information.
(tramp-get-remote-df): New defun.

* lisp/net/tramp-smb.el (tramp-smb-handle-file-system-info): New defun.
(tramp-smb-file-name-handler-alist): Use it.
(tramp-smb-handle-insert-directory): Insert size information.

* test/lisp/net/tramp-tests.el (tramp-test37-file-system-info):
New test.
(tramp-test38-asynchronous-requests)
(tramp-test39-recursive-load, tramp-test40-remote-load-path)
(tramp-test41-unload): Rename.
2017-10-03 16:07:32 +02:00
João Távora
f964aa9973 Minimal tweak as an attempt to future-proof Flymake API
Discussed with Stefan that this should allow Flymake to request more
from backends in the future, while also allowing backends to report
more accurately.

* lisp/progmodes/elisp-mode.el (elisp-flymake-checkdoc)
(elisp-flymake-byte-compile): Adjust to new API.

* lisp/progmodes/flymake-proc.el ()
(flymake-proc-legacy-flymake): Adjust to new API.

* lisp/progmodes/flymake.el (flymake-diagnostic-functions):
Review API again.
(flymake--handle-report): Allow other keys.  Change ACTION to
REPORT-ACTION.
2017-10-03 14:20:29 +01:00
João Távora
602d9376db Integrate Flymake elisp checkers into elisp-mode.el directly
* lisp/progmodes/elisp-mode.el (emacs-lisp-mode): Use
elisp-flymake-checkdoc and elisp-flymake-byte-compile.
(elisp-flymake--checkdoc-1, elisp-flymake-checkdoc)
(elisp-flymake--byte-compile-done)
(elisp-flymake--byte-compile-process)
(elisp-flymake-byte-compile): Rename from flymake-elisp
counterparts in deleted flymake-elisp.el
(elisp-flymake--batch-compile-for-flymake): New helper.
(checkdoc-create-error-function)
(checkdoc-autofix-flag)
(checkdoc-generate-compile-warnings-flag)
(checkdoc-diagnostic-buffer): Forward declare.

* lisp/progmodes/flymake-elisp.el: Delete.
2017-10-03 14:20:29 +01:00
João Távora
30ea272fe4 Hook Flymake onto proper checkdoc and byte-compile interfaces
The interfaces in bytecomp.el and checkdoc.el are mostly boilerplate,
with little knowledge of actual internals or thought given to the
usefulness of said interfaces in contexts other than Flymake's.

* lisp/emacs-lisp/bytecomp.el
(byte-compile-log-warning-function): New variable.
(byte-compile-log-warning): Use it.
(byte-compile--log-warning-for-byte-compile): New function.

* lisp/emacs-lisp/checkdoc.el
(checkdoc-create-error-function): New variable.
(checkdoc-create-error): Use it.
(checkdoc--create-error-for-checkdoc): New function.xo

* lisp/progmodes/flymake-elisp.el (flymake-elisp--checkdoc-1):
Use checkdoc-create-error-function.
(flymake-elisp--batch-byte-compile): Use
byte-compile-log-warning-function.
2017-10-03 14:18:55 +01:00
João Távora
2e84179a29 Tweak Flymake autoloads and dependencies
* lisp/progmodes/elisp-mode.el (emacs-lisp-mode): Add to
flymake-diagnostic-functions here.

* lisp/progmodes/flymake-elisp.el[top]: Don't add to
emacs-lisp-mode-hook.  Don't call flymake-elisp-setup-backends in
every buffer.  (flymake-elisp-checkdoc) (flymake-elisp-byte-compile):
Autoload.  (flymake-elisp-setup-backends): Remove.

* lisp/progmodes/flymake.el: Add some top-level comments.
(flymake-make-diagnostic)
(flymake-mode, flymake-mode-on, flymake-mode-off): Add autoloads

Where to fixup this shit?
2017-10-03 14:18:55 +01:00
João Távora
5d3f8a8b80 Capitalize "Flymake" in docstrings and comments
* lisp/progmodes/flymake-elisp.el (flymake-elisp-checkdoc)
(flymake-elisp-setup-backends): Capitalize "Flymake"

* lisp/progmodes/flymake-proc.el:
(flymake-proc-reformat-err-line-patterns-from-compile-el)
(flymake-proc--panic, flymake-proc-legacy-flymake)
(flymake-start-syntax-check, flymake-proc-compile)
(define-obsolete-variable-alias): Capitalize "Flymake"

* lisp/progmodes/flymake.el (flymake-fringe-indicator-position)
(flymake-make-diagnostic, flymake-delete-own-overlays)
(flymake-diagnostic-functions)
(flymake-diagnostic-types-alist, flymake-is-running)
(flymake-make-report-fn, flymake-mode-on, flymake-mode-off)
(flymake-goto-next-error, flymake-goto-prev-error): Capitalize "Flymake"
2017-10-03 14:18:55 +01:00
João Távora
f6e909b41e Flymake backends can report multiple times per check
Rewrote a significant part of the Flymake backend API.  Flymake now
ignores the return value of backend functions: a function can either
returns or errors.  If it doesn't error, a backend is no longer
constrained to call REPORT-FN exactly once.  It may do so any number
of times, cumulatively reporting diagnostics.  Flymake keeps track of
outdated REPORT-FN instances and disconsiders obsolete reports.
Backends should avoid reporting obsolete data by cancelling any
ongoing processing at every renewed call to the backend function.

Consolidated flymake.el internal data structures to require less
buffer-local variables.  Adjusted Flymake's mode-line indicator to the
new semantics.

Adapted and simplified the implementation of elisp and legacy
backends, fixing potential race conditions when calling backends in
rapid succession.

Added a new test for a backend that calls REPORT-FN multiple
times.  Simplify test infrastructure.

* lisp/progmodes/flymake-elisp.el (flymake-elisp-checkdoc)
(flymake-elisp-byte-compile): Error instead of returning nil
if not in emacs-lisp-mode.
(flymake-elisp--byte-compile-process): New buffer-local variable.
(flymake-elisp-byte-compile): Mark (and kill) previous process
obsolete process before starting a new one.  Don't report if
obsolete process.

* lisp/progmodes/flymake-proc.el
(flymake-proc--current-process): New buffer-local variable.
(flymake-proc--processes): Remove.
(flymake-proc--process-filter): Don't bind
flymake-proc--report-fn.
(flymake-proc--process-sentinel): Rewrite.  Don't report if
obsolete process.
(flymake-proc-legacy-flymake): Rewrite.  Mark (and kill)
previous process obsolete process before starting a new
one.  Integrate flymake-proc--start-syntax-check-process
helper.
(flymake-proc--start-syntax-check-process): Delete.
(flymake-proc-stop-all-syntax-checks): Don't use
flymake-proc--processes, iterate buffers.
(flymake-proc-compile):

* lisp/progmodes/flymake.el (subr-x): Require it
explicitly.
(flymake-diagnostic-functions): Reword docstring.
(flymake--running-backends, flymake--disabled-backends)
(flymake--diagnostics-table): Delete.
(flymake--backend-state): New buffer-local variable and new defstruct.
(flymake--with-backend-state, flymake--collect)
(flymake-running-backends, flymake-disabled-backends)
(flymake-reporting-backends): New helpers.
(flymake-is-running): Use flymake-running-backends.
(flymake--handle-report): Rewrite.
(flymake-make-report-fn): Ensure REPORT-FN runs in the correct
buffer or not at all.
(flymake--disable-backend, flymake--run-backend): Rewrite.
(flymake-start): Rewrite.
(flymake-mode): Set flymake--backend-state.
(flymake--mode-line-format): Rewrite.

* test/lisp/progmodes/flymake-tests.el
(flymake-tests--wait-for-backends): New helper.
(flymake-tests--call-with-fixture): Use it.
(included-c-header-files): Fix whitespace.
(flymake-tests--diagnose-words): New helper.
(dummy-backends): Rewrite for new semantics.  Use cl-letf.
(flymake-tests--assert-set): Use quote.
(recurrent-backend): New test.
2017-10-03 14:18:55 +01:00
João Távora
22a7372fab Flymake uses proper idle timers
Also, flymake-no-changes-timeout can be set to nil to disable
automatic periodic checks.  But even in that situation the idle timer
still runs at a reduced rate to detect changes in the variable and
revert that decision.

* lisp/progmodes/flymake.el (flymake-no-changes-timeout): Improve doc.
(flymake-last-change-time): Delete.
(flymake--schedule-timer-maybe): New helper.
(flymake-after-change-function): Use it.
(flymake-on-timer-event): Delete
(flymake-mode): Don't scheduler timer.
2017-10-03 14:18:55 +01:00
João Távora
91851c3ea0 Flymake variable flymake-diagnostic-functions now a special hook
* lisp/progmodes/flymake-proc.el: Use add-hook to affect
flymake-diagnostic-functions.

* lisp/progmodes/flymake-elisp.el
(flymake-elisp-setup-backends): Use add-hook.

* lisp/progmodes/flymake.el (flymake-diagnostic-functions):
Revise docstring.
(flymake-start): Use run-hook-wrapped.
2017-10-03 14:18:55 +01:00
João Távora
bd8ea8873d Batch of minor Flymake cleanup actions agreed to with Stefan
Discussed with Stefan, in no particular order

- Remove aliases for symbols thought to be internal to flymake-proc.el
- Don’t need :group in defcustom and defface in flymake.el
- Fix docstring of flymake-make-diagnostic
- Fix docstring of flymake-diagnostic-functions to clarify keywords.
- Mark overlays with just the property ’flymake, not ’flymake-overlay
- Tune flymake-overlays for performance
- Make flymake-mode-on and flymake-mode-off obsolete
- Don’t use hash-table-keys unless necessary.
- Copyright notice in flymake-elisp.

Added some more

- Clarify docstring of flymake-goto-next-error
- Clarify a comment in flymake--run-backend complaining about ert-deftest.
- Prevent compilation warnings in flymake-proc.el
- Remove doctring from obsolete aliases

Now the changelog:

* lisp/progmodes/flymake-elisp.el: Proper copyright notice.

* lisp/progmodes/flymake-proc.el (flymake-warning-re)
(flymake-proc-diagnostic-type-pred)
(flymake-proc-default-guess)
(flymake-proc--get-file-name-mode-and-masks): Move up to
beginning of file to shoosh compiler warnings
(define-obsolete-variable-alias): Delete many obsolete aliases.

* lisp/progmodes/flymake.el (flymake-error-bitmap)
(flymake-warning-bitmap, flymake-note-bitmap)
(flymake-fringe-indicator-position)
(flymake-start-syntax-check-on-newline)
(flymake-no-changes-timeout, flymake-gui-warnings-enabled)
(flymake-start-syntax-check-on-find-file, flymake-log-level)
(flymake-wrap-around, flymake-error, flymake-warning)
(flymake-note): Don't need :group in these defcustom and defface.
(flymake--run-backend): Clarify comment
(flymake-mode-map): Remove.
(flymake-make-diagnostic): Fix docstring.
(flymake--highlight-line, flymake--overlays): Identify flymake
overlays with just ’flymake.
(flymake--overlays): Reverse order of invocation for
cl-remove-if-not and cl-sort.
(flymake-mode-on)
(flymake-mode-off): Make obsolete.
(flymake-goto-next-error, flymake-goto-prev-error): Fix docstring.
(flymake-diagnostic-functions): Clarify keyword arguments in
docstring.

Maybe squash in that one where I remove many obsoletes
2017-10-03 14:18:55 +01:00
João Távora
87993cdcc6 Explicitly add a(n empty) keymap for Flymake
Too early to decide what will be in it, if anything.  Though "M-n" and
"M-p" would be great.

* lisp/progmodes/flymake-ui.el (flymake-mode-map): New variable
2017-10-03 14:18:55 +01:00
João Távora
1b271ad76e Flymake uses some new fringe bitmaps
Also fix behaviour whereby flymake wouldn't react to a change in the
variable.

* lisp/progmodes/flymake-ui.el (flymake-error-bitmap)
(flymake-warning-bitmap): Update bitmaps.
(flymake-note-bitmap): New defcustom.
(flymake-double-exclamation-mark): New bitmap.
(flymake-error, flymake-warning, flymake-note)
(flymake--highlight-line): 'bitmap property must be a symbol.
Also set default face to flymake-error.
(flymake--fringe-overlay-spec): Bitmap property can be a
variable symbol.
2017-10-03 14:18:55 +01:00
João Távora
cd39edb5d6 Remove old flymake-display-err-menu-for-current-line, it's useless
See https://lists.gnu.org/archive/html/emacs-devel/2017-09/msg00949.html

* lisp/progmodes/flymake-ui.el
(flymake-popup-current-error-menu): Remove.
2017-10-03 14:18:55 +01:00
João Távora
5235eaf781 Treat Flymake errors as just another type of diagnostic
* lisp/progmodes/flymake.el (flymake--diag-errorp): Remove.
(flymake--handle-report, flymake-popup-current-error-menu):
Don't use it.
2017-10-03 14:18:55 +01:00
João Távora
8118f0f95f Fix three Flymake bugs when checking C header files
The first of these problems is longstanding: if an error-less B.h is
included from error-ridden A.h, flymake's legacy parser will panic
(and disable itself) since it sees a non-zero exit for a clean file.
To fix this, recommend returning 'true' in the documentation for the
check-syntax target.

Another problem was introduced by the parser rewrite.  For error
patterns spanning more than one line, point may be left in the middle
of a line and thus render other patterns useless.  Those patterns were
written for the old line-by-line parser.  To make them useful again,
move to the beginning of line in those situations.

The third problem was also longstanding and happened on newer GCC's:
The "In file included from" prefix confused
flymake-proc-get-real-file-name.  Fix this.

Also updated flymake--diag-region to fallback to highlighting a full
line less often.

Add automatic tests to check this.

* lisp/progmodes/flymake-proc.el
(flymake-proc--diagnostics-for-pattern): Fix bug when patterns
accidentally spans more than one line.  Don't create
diagnostics without error messages.
(flymake-proc-real-file-name-considering-includes): New
helper.
(flymake-proc-allowed-file-name-masks): Use it.

* lisp/progmodes/flymake.el (flymake-diag-region): Make COL
argument explicitly optional.  Only fall back to full line in extreme
cases.

* test/lisp/progmodes/flymake-tests.el
(included-c-header-files): New test.
(different-diagnostic-types): Update.

* test/lisp/progmodes/flymake-resources/Makefile
(check-syntax): Always return success (0) error code.
(CC_OPTS): Add -Wextra

* test/lisp/progmodes/flymake-resources/errors-and-warnings.c
(main): Rewrite comments.

* test/lisp/progmodes/flymake-resources/errors-and-warnings.c:
Include some dummy header files.

* test/lisp/progmodes/flymake-resources/no-problems.h: New file.

* test/lisp/progmodes/flymake-resources/some-problems.h: New file.

* doc/misc/flymake.texi (Example---Configuring a tool called
via make): Recommend adding "|| true" to the check-syntax target.
2017-10-03 14:18:55 +01:00
João Távora
9a629a73e0 Add interactive flymake-start function
* lisp/progmodes/flymake.el (flymake-on-timer-event)
(flymake-after-change-function, flymake-mode): Call
flymake-start.
(flymake-start): Rename from flymake--start-syntax-check.
2017-10-03 14:18:54 +01:00
João Távora
483f1e834d A couple of Flymake backends for emacs-lisp-mode
Loading flymake-elisp.el doesn't setup flymake-mode to turn on
automatically, but it affects emacs-lisp-mode-hook so that
flymake-diagnostic-functions is setup with a suitable buffer-local
value.  The variable flymake-diagnostic-funtions in every live
emacs-lisp-mode buffer is also adjusted.

* lisp/progmodes/flymake.el (top): Require flymake-elisp.

* lisp/progmodes/flymake-elisp.el: New file.
2017-10-03 14:18:54 +01:00
João Távora
e0df7b9699 Fancy Flymake mode-line construct displays status
Imitates compilation-mode's mode-line a bit, and uses its faces.

* lisp/progmodes/flymake.el
(flymake-error, flymake-warning, flymake-note): Add
mode-line-face to these flymake error types.
(flymake-note): Notes don't need a noisy fringe bitmap.
(flymake-lighter): Delete.
(flymake--update-lighter): Delete.
(flymake--mode-line-format): New function and variable.
(flymake--diagnostics-table): New buffer-local variable.
(flymake--handle-report): Don't update "lighters".  Affect
flymake--diagnostics-table.
(flymake--run-backend): Init flymake--diagnostics-table for backend.
(flymake-mode): Use flymake--mode-line-format.
(flymake-mode): Don't update lighter.
(flymake--highlight-line): Be more careful when overriding a
nil default overlay property.
2017-10-03 14:18:54 +01:00
João Távora
73601787b4 Tweak Flymake commands flymake-goto-[next/prev]-error
Add filters, useful for backends like the upcoming
flymake-elisp-checkdoc backend, for example, which litters everything
with low-priority notes.

Also re-implement wraparound for flymake-goto-next-error. Manual
mentions this, so it's probably a good idea to keep it.  Added a new
customization variable flymake-wrap-around to control it.

* lisp/progmodes/flymake.el (flymake-goto-prev-error)
(flymake-goto-next-error): Accept FILTER argument.
(flymake-wrap-around): New variable.
(flymake-goto-next-error): Wrap around according to flymake-wrap-around.

* test/lisp/progmodes/flymake-tests.el
(different-diagnostic-types, dummy-backends): Pass FILTER to
flymake-goto-prev-error.
(different-diagnostic-types)
(dummy-backends): Use flymake-wrap-around.
2017-10-03 14:18:54 +01:00
João Távora
5ec7d73865 Flymake's flymake-proc.el backend slightly easier to debug
Misc cleanup in flymake-proc.el

Improve description of what this file contains.

Better name for the backend function.  Fix the case where it is run
interactively.

Keep the output buffer alive iff the external process panics.

* lisp/progmodes/flymake-proc.el
(flymake-proc-legacy-flymake): Rename from
flymake-proc-start-syntax-check.  Allow running interactively.
(flymake-start-syntax-check): Obsolete alias for
flymake-proc-legacy-flymake.
(flymake-proc-start-syntax-check): Delete.
(flymake-diagnostic-functions): Include flymake-proc-legacy-flymake
(flymake-proc--process-sentinel): Keep output buffer alive.
Clarify with comments.
(flymake-proc--diagnostics-for-pattern)
(flymake-proc--process-sentinel)
(flymake-proc--safe-delete-directory)
(flymake-proc--start-syntax-check-process): Use condition-case-unless-debug.
2017-10-03 14:18:54 +01:00
João Távora
f930963dd4 Simplify Flymake logging and erroring
Use display-warning and a dedicated *Flymake log* buffer.

To ease readability, flymake log messages are now prefixed with a
common prefix and the buffer that originated them.

Some situations of over-zealous logging are fixed.

Use byte-compiler info, if available, to determine whence the
flymake-related log message is coming.

* lisp/progmodes/flymake-proc.el
(flymake-proc--diagnostics-for-pattern): Improve log message.
(flymake-proc--panic): Always flymake-log an error
(flymake-proc--safe-delete-file)
(flymake-proc--safe-delete-directory):
Downgrade warning
(flymake-proc-start-syntax-check): Simplify slightly.
(flymake-proc--start-syntax-check-process): Simplify.
(flymake-proc--init-find-buildfile-dir)
(flymake-proc--init-create-temp-source-and-master-buffer-copy):
No need to warn twice.

* lisp/progmodes/flymake.el (flymake-log): Convert to macro.
(flymake--log-1): New helper.
(flymake-log-level): Deprecate.
(flymake-error): New helper.
(flymake-ler-make-ler, flymake--handle-report, flymake-mode):
Use flymake-error.
(flymake-on-timer-event)
(flymake--handle-report, flymake--disable-backend)
(flymake--run-backend, flymake-start, flymake-mode-on)
(flymake-mode-off, flymake-after-change-function)
(flymake-after-save-hook, flymake-find-file-hook): Adjust
flymake-log calls.

* test/lisp/progmodes/flymake-tests.el
(flymake-tests--call-with-fixture): Only log errors.
2017-10-03 14:18:54 +01:00
João Távora
94a88c1ae9 New Flymake API variable flymake-diagnostic-functions
Lay groundwork for multiple active backends in the same buffer.

Backends are lisp functions called when flymake-mode sees fit.  They
are responsible for examining the current buffer and telling
flymake.el, via return value, if they can syntax check it.
Backends should return quickly and inexpensively, but they are also
passed a REPORT-FN argument which they may or may not call
asynchronously after performing more expensive work.

REPORT-FN's calling convention stipulates that a backend calls it with
a list of diagnostics as argument, or, alternatively, with a symbol
denoting an exceptional situation, usually some panic resulting from a
misconfigured backend.  In keeping with legacy behaviour,
flymake.el's response to a panic is to disable the issuing backend.

The flymake--diag object representing a diagnostic now also keeps
information about its source backend.  Among other uses, this allows
flymake to selectively cleanup overlays based on which backend is
updating its diagnostics.

* lisp/progmodes/flymake-proc.el (flymake-proc--report-fn):
New dynamic variable.
(flymake-proc--process): New variable.
(flymake-can-syntax-check-buffer): Remove.
(flymake-proc--process-sentinel): Simplify.  Use
unwind-protect.  Affect flymake-proc--processes here.
Bind flymake-proc--report-fn.
(flymake-proc--process-filter): Bind flymake-proc--report-fn.
(flymake-proc--post-syntax-check): Delete
(flymake-proc-start-syntax-check): Take mandatory
report-fn.  Rewrite.  Bind flymake-proc--report-fn.
(flymake-proc--process-sentinel): Rewrite and simplify.
(flymake-proc--panic): New helper.
(flymake-proc--start-syntax-check-process): Record report-fn
in process.  Use flymake-proc--panic.
(flymake-proc-stop-all-syntax-checks): Use mapc.  Don't affect
flymake-proc--processes here.  Record interruption reason.
(flymake-proc--init-find-buildfile-dir)
(flymake-proc--init-create-temp-source-and-master-buffer-copy):
Use flymake-proc--panic.
(flymake-diagnostic-functions): Add
flymake-proc-start-syntax-check.
(flymake-proc-compile): Call
flymake-proc-stop-all-syntax-checks with a reason.

* lisp/progmodes/flymake.el (flymake-backends): Delete.
(flymake-check-was-interrupted): Delete.
(flymake--diag): Add backend slot.
(flymake-delete-own-overlays): Take optional filter arg.
(flymake-diagnostic-functions): New user-visible variable.
(flymake--running-backends, flymake--disabled-backends): New
buffer-local variables.
(flymake-is-running): Now a function, not a variable.
(flymake-mode-line, flymake-mode-line-e-w)
(flymake-mode-line-status): Delete.
(flymake-lighter):  flymake's minor-mode "lighter".
(flymake-report): Delete.
(flymake--backend): Delete.
(flymake--can-syntax-check-buffer): Delete.
(flymake--handle-report, flymake--disable-backend)
(flymake--run-backend, flymake--run-backend):  New helpers.
(flymake-make-report-fn): Make a lambda.
(flymake--start-syntax-check): Iterate
flymake-diagnostic-functions.
(flymake-mode): Use flymake-lighter.  Simplify.  Initialize
flymake--running-backends and flymake--disabled-backends.
(flymake-find-file-hook): Simplify.

* test/lisp/progmodes/flymake-tests.el
(flymake-tests--call-with-fixture): Use flymake-is-running the
function.  Check if flymake-mode already active before activating it.
Add a thorough test for flymake multiple backends

* lisp/progmodes/flymake.el (flymake--start-syntax-check):
Don't use condition-case-unless-debug, use condition-case

* test/lisp/progmodes/flymake-tests.el
(flymake-tests--assert-set): New helper macro.
(dummy-backends): New test.
2017-10-03 13:53:22 +01:00
João Távora
b2f8b8b47a More Flymake cleanup before advancing to backend redesign
Diagnostics are reported for buffers, not necessarily files.  It’s the
backend’s responsibility to compute the buffer where the diagnostic is
applicable.  For now, this has to match the buffer where flymake-mode
is active and which is at the origin of the backend call.

flymake.el knows nothing about line/column diagnostics (except for
backward-compatible flymake-ler-make-ler, which must yet be tested).
It’s also the backend’s reponsibility to compute a BEG and END
positions for the diagnostic in the relevant buffer.

* lisp/progmodes/flymake-proc.el
(flymake-proc--diagnostics-for-pattern): Convert LINE/COL to
region here.  Check file buffer here.
(flymake-proc--process-sentinel): Don’t kill output buffer if
high enough log level.

* lisp/progmodes/flymake.el (flymake-diag-region): Make this a utility
function.  (flymake--highlight-line): Diagnostic has region now.
(flymake-popup-current-error-menu): Don’t add file and line numbers to
already this silly menu.  (flymake--fix-line-numbers): Remove.
(flymake-report): No need to fix diagnostics here.
2017-10-03 13:52:24 +01:00
João Távora
b0bb181f93 Protect Flymake's eager checks against commands like fill-paragraph
If flymake-start-syntax-check-on-newline is t, check should start as
soon as a newline is seen by after-change-functions.  But don't rush
it: since the buffer state might not be final, we might end up with
invalid diagnostic regions after some commands silently insert and
delete newlines (looking at you, fill-paragraph).

* lisp/progmodes/flymake.el (flymake-after-change-function): Pass
`deferred' to flymake--start-syntax-check.
(flymake--start-syntax-check): Take optional `deferred' arg.
2017-10-03 13:52:24 +01:00
João Távora
54beebb4e0 Flymake highlights GCC info/notes as detected by flymake-proc.el
* lisp/progmodes/flymake-proc.el
(flymake-proc--diagnostics-for-pattern): Rewrite (using cl-loop) to
honour more sophisticated flymake-proc-diagnostic-type-pred.
(flymake-warning-re): Is now an obsolete alias for
flymake-proc-diagnostic-type-pred.
(flymake-proc-diagnostic-type-pred): Rename and augment from
flymake-proc-warning-predicate.  (flymake-proc-warning-predicate):
Delete.

* lisp/progmodes/flymake.el (flymake-note): New face.
(flymake-diagnostic-types-alist): Simplify.
(flymake-note): New overlay category.
(flymake--lookup-type-property): Only lookup single keys, not lists.
(flymake--diag-errorp): Rewrite.
(flymake--highlight-line): Use flymake--lookup-type-property.

* test/lisp/progmodes/flymake-tests.el
(different-diagnostic-types): Rename from errors-and-warnings.
Check notes.
(flymake-tests--call-with-fixture): Use
flymake-proc-diagnostic-type-pred.
2017-10-03 13:52:24 +01:00
João Távora
491cc4a1bd Flymake checks file names before considering diagnostics
The error patterns for gcc picked up errors for the Makefile itself,
for example.  These shouldn't count as actual errors.

* lisp/progmodes/flymake.el (flymake-report): Check
matching file names.
2017-10-03 13:52:24 +01:00
João Távora
8c85ab027e Echo Flymake error messages when navigating errors interactively
Perhaps binding M-n and M-p to flymake-goto-next-error and
flymake-goto-prev-error also wouldn't be a bad idea.

* lisp/progmodes/flymake.el (flymake-goto-next-error): Use
target overlay's help-echo.
2017-10-03 13:52:24 +01:00
João Távora
7787988587 Flymake warning face easier to distinguish
A orange wavy underline is very hard to tell from a red wavy
underline.

* lisp/progmodes/flymake.el (flymake-warning): Change color to
"deep sky blue"
2017-10-03 13:52:24 +01:00