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From: Philipp Stephani
Newsgroups: gmane.emacs.bugs
Subject: bug#40109: 27.0.90;
simple-delete-trailing-whitespace--bug-21766 fails if Git isn't
installed
Date: Tue, 17 Mar 2020 18:35:33 +0100
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Am Di., 17. M=C3=A4rz 2020 um 18:15 Uhr schrieb Philipp Stephani
:
>
>
> Make sure that git isn't installed, e.g. by running 'apt remove git' on
> a Debian system. Then, in the Emacs source test directory:
>
> $ make lisp/simple-tests SELECTOR=3Dsimple-delete-trailing-whitespace--bu=
g-21766
> make[1]: Entering directory '/emacs/test'
> GEN lisp/simple-tests.log
> Running 1 tests (2020-03-17 18:07:31+0100, selector `simple-delete-traili=
ng-whitespace--bug-21766')
> Test simple-delete-trailing-whitespace--bug-21766 backtrace:
> call-process("git" nil (t nil) nil "rev-parse" "--abbrev-ref" "HEAD"
> emacs-repository-branch-git("/emacs/")
> emacs-repository-get-branch("/emacs/")
> byte-code("\3021$\0\303\304\305\306!\307\"\206\17\0\10\1\31\211;\205
> (defconst tramp-repository-branch (byte-code "\3021$\0\303\304\305\3
> require(trampver)
> byte-code("\300\301!\210\300\302!\210\300\303!\210\300\304!\210\305\
> require(tramp)
> require(tramp-sh)
> byte-code("\300\301!\210\300\302!\210\300\303!\210\300\304!\210\300\
> (python-mode)
> (progn (python-mode) (insert (concat "query =3D \"\"\"WITH filtered AS
> (unwind-protect (progn (python-mode) (insert (concat "query =3D \"\"\"
> (save-current-buffer (set-buffer temp-buffer) (unwind-protect (progn
> (let ((temp-buffer (generate-new-buffer " *temp*"))) (save-current-b
> (unwind-protect (let ((temp-buffer (generate-new-buffer " *temp*")))
> (let ((python (featurep 'python)) (python-indent-guess-indent-offset
> (closure (t) nil (defvar python-indent-guess-indent-offset) (let ((p
> ert--run-test-internal(#s(ert--test-execution-info :test #s(ert-test
> ert-run-test(#s(ert-test :name simple-delete-trailing-whitespace--bu
> ert-run-or-rerun-test(#s(ert--stats :selector simple-delete-trailing
> ert-run-tests(simple-delete-trailing-whitespace--bug-21766 #f(compil
> ert-run-tests-batch(simple-delete-trailing-whitespace--bug-21766)
> ert-run-tests-batch-and-exit(simple-delete-trailing-whitespace--bug-
> eval((ert-run-tests-batch-and-exit 'simple-delete-trailing-whitespac
> command-line-1(("-L" ":." "-l" "ert" "-l" "lisp/simple-tests.el" "--
> command-line()
> normal-top-level()
> Test simple-delete-trailing-whitespace--bug-21766 condition:
> (file-missing "Searching for program" "No such file or directory" "gi=
t")
> FAILED 1/1 simple-delete-trailing-whitespace--bug-21766 (0.267653 se=
c)
>
> Ran 1 tests, 0 results as expected, 1 unexpected (2020-03-17 18:07:32+010=
0, 1.093014 sec)
>
> 1 unexpected results:
> FAILED simple-delete-trailing-whitespace--bug-21766
>
> make[1]: *** [Makefile:183: lisp/simple-tests.log] Error 1
> make[1]: Leaving directory '/emacs/test'
> make: *** [Makefile:249: lisp/simple-tests] Error 2
>
>
> This is weird because trampver.el properly uses ignore-errors, so this
> error shouldn't bubble up.
Ah, the problem is that with-demoted-errors uses
condition-case-unless-debug. More minimal example:
$ emacs -Q -batch -eval '(let ((debug-on-error t)) (ignore-errors
(with-demoted-errors "%S" (error "foo"))))'
Debugger entered--Lisp error: (error "foo")
[=E2=80=A6]
I think this behavior is very confusing. Both version.el and
trampver.el try to do the right thing, but that breaks in such a
situation.