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More robustly unspoof HOME in Eglot tests (bug#61637)

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A fair number of LSP servers allow user-local installations instead of
system wide installations.  Emacs's technique of spoofing the HOME env
var to some non-existent or non-home directory during 'make check'
breaks these tests.  That's because the executables are still found by
executable-find, but their invocation will rarely be successful as
HOME isn't what they expect it to be.

Eglot tests already had a technique for dealing with this,
"unspoffing" HOME just for the invocations of LSP server but it
stopped working a while back.  So make it more robust.

Eventually, we'll want to decide wether these local servers should be
considered in 'make check' runs at all, or whether there is a way to
use them with a spoofed HOME.

* test/lisp/progmodes/eglot-tests.el (eglot--call-with-fixture):
More robustly unspoof HOME.
This commit is contained in:
João Távora 2023-03-04 19:14:48 +00:00
parent 6c66dbd02c
commit a7cd125d49
1 changed files with 8 additions and 9 deletions
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17
test/lisp/progmodes/eglot-tests.el
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@ -103,22 +103,21 @@ then restored."
(set (car spec) (cadr spec)))
((stringp (car spec)) (push spec file-specs))))
(unwind-protect
(let* ((home (getenv "HOME"))
(process-environment
(let* ((process-environment
(append
`(;; Set XDF_CONFIG_HOME to /dev/null to prevent
;; user-configuration to have an influence on
;; language servers. (See github#441)
"XDG_CONFIG_HOME=/dev/null"
;; ... on the flip-side, a similar technique by
;; Emacs's test makefiles means that HOME is set to
;; /nonexistent. This breaks some common
;; installations for LSP servers like pylsp, making
;; these tests mostly useless, so we hack around it
;; here with a great big hack.
;; Emacs's test makefiles means that HOME is
;; spoofed to /nonexistent, or sometimes /tmp.
;; This breaks some common installations for LSP
;; servers like pylsp, rust-analyzer making these
;; tests mostly useless, so we hack around it here
;; with a great big hack.
,(format "HOME=%s"
(if (file-exists-p home) home
(format "/home/%s" (getenv "USER")))))
(expand-file-name (format "~%s" (user-login-name)))))
process-environment))
;; Prevent "Can't guess python-indent-offset ..." messages.
(python-indent-guess-indent-offset-verbose . nil)