mirror of
https://https.git.savannah.gnu.org/git/guix.git/
synced 2025-07-13 18:40:57 +02:00
2e25cd62cb
* gnu/packages/patches/emacs-bash-completion-preserve-exit-code.patch: New patch. * gnu/packages/patches/emacs-bash-completion-preserve-ps1.patch: Likewise. * gnu/local.mk (dist_patch_DATA): Register them. * gnu/packages/emacs-xyz.scm (emacs-bash-completion) [source]: Apply them. Change-Id: Id179f4ee976efdbe52f05dcb0919ad586dc8bcad
131 lines
5.4 KiB
Diff
131 lines
5.4 KiB
Diff
From a96525afd9077c06d781c59e78bfc6620e41be8f Mon Sep 17 00:00:00 2001
|
|
From: Stephane Zermatten <szermatt@gmx.net>
|
|
Date: Fri, 25 Apr 2025 18:08:01 +0300
|
|
Subject: [PATCH] fix: Recover $? after completion.
|
|
|
|
Before this change, the value of $? was lost when doing a completion as
|
|
it required running a command, so $? became the status code of the
|
|
completion command.
|
|
|
|
So if you typed:
|
|
|
|
> false
|
|
> ech<TAB> $?
|
|
|
|
You would get 0 instead of 1, set by false.
|
|
|
|
This change stores the value of $? first thing before executing any
|
|
command, then have __ebcret restore it. The status code that bash
|
|
completion, the one that's embedded in the next prompt, remains the
|
|
status code of the completion command, but $? is the status code of the
|
|
last user command, before completion was run.
|
|
|
|
issue #77
|
|
---
|
|
bash-completion.el | 22 +++++++--------
|
|
test/bash-completion-integration-test.el | 34 ++++++++++++++++++++++++
|
|
2 files changed, 45 insertions(+), 11 deletions(-)
|
|
|
|
diff --git a/bash-completion.el b/bash-completion.el
|
|
index 130152f..5a7d9ff 100644
|
|
--- a/bash-completion.el
|
|
+++ b/bash-completion.el
|
|
@@ -294,7 +294,7 @@ Bash processes.")
|
|
(defconst bash-completion-special-chars "[ -$&-*,:-<>?[-^`{-}]"
|
|
"Regexp of characters that must be escaped or quoted.")
|
|
|
|
-(defconst bash-completion--ps1 "'==emacs==ret=$?==.'"
|
|
+(defconst bash-completion--ps1 "'==emacs==ret=${__ebcret:-$?}==.'"
|
|
"Value for the special PS1 prompt set for completions, quoted.")
|
|
|
|
(eval-when-compile
|
|
@@ -1532,12 +1532,12 @@ Return the status code of the command, as a number."
|
|
;; single process, assume __ebcpre is already defined
|
|
((not define-functions)
|
|
(concat
|
|
- "if type __ebcpre &>/dev/null; then "
|
|
+ "__ebcor=$?; if type __ebcpre &>/dev/null; then "
|
|
" __ebcpre; %s; __ebcret $?; "
|
|
"else "
|
|
" echo ==emacs==nopre=${BASH_VERSION}==.; "
|
|
- " __ebcp=(\"$PS1\" \"$PROMPT_COMMAND\");"
|
|
- " unset PS1 PROMPT_COMMAND;"
|
|
+ " __ebcp=(\"$PS1\" \"$PROMPT_COMMAND\" $__ebcor);"
|
|
+ " unset PS1 PROMPT_COMMAND __ebcor;"
|
|
"fi;\n"))
|
|
;; single process, define __ebcpre
|
|
(t
|
|
@@ -1549,23 +1549,23 @@ Return the status code of the command, as a number."
|
|
" fi;"
|
|
" history -d $c &>/dev/null || true;"
|
|
"} ; function __ebcret {"
|
|
- " __ebcret=t;"
|
|
- " return $1;"
|
|
+ " __ebcret=$1;"
|
|
+ " return ${__ebcp[2]};"
|
|
"} ; function __ebctrap {"
|
|
- " if [[ \"$__ebcret\" = \"t\" && ${#__ebcp[@]} -gt 0 ]]; then"
|
|
+ " if [[ -n \"$__ebcret\" && ${#__ebcp[@]} -gt 0 ]]; then"
|
|
" PS1=\"${__ebcp[0]}\";"
|
|
" PROMPT_COMMAND=\"${__ebcp[1]}\";"
|
|
- " unset __ebcp;"
|
|
- " unset __ebcret;"
|
|
+ " unset __ebcp __ebcret;"
|
|
" fi;"
|
|
"} ; trap __ebctrap DEBUG ; function __ebcpre {"
|
|
+ " __ebcor=${__ebcor:-$?}; "
|
|
" set +x; set +o emacs; set +o vi;"
|
|
" echo \"==emacs==bash=${BASH_VERSION}==.\";"
|
|
" if [[ ${#__ebcp[@]} = 0 ]]; then "
|
|
- " __ebcp=(\"$PS1\" \"$PROMPT_COMMAND\");"
|
|
+ " __ebcp=(\"$PS1\" \"$PROMPT_COMMAND\" $__ebcor);"
|
|
" fi;"
|
|
" PS1=" bash-completion--ps1 ";"
|
|
- " unset PROMPT_COMMAND;"
|
|
+ " unset PROMPT_COMMAND __ebcor;"
|
|
" __ebcnohistory 1;"
|
|
"} ; { __ebcpre; %s; __ebcret $?; }\n")))
|
|
commandline)))
|
|
diff --git a/test/bash-completion-integration-test.el b/test/bash-completion-integration-test.el
|
|
index f57ddc7..02c24ec 100644
|
|
--- a/test/bash-completion-integration-test.el
|
|
+++ b/test/bash-completion-integration-test.el
|
|
@@ -926,4 +926,38 @@ $ ")))))
|
|
(should (equal (bash-completion_test-buffer-string)
|
|
"$ dummy dummy\n--$ --\n$ dummy dummy\n--$ --\n$ "))))
|
|
|
|
+(ert-deftest bash-completion-integration-recover-status-code ()
|
|
+ (bash-completion_test-with-shell-harness
|
|
+ (concat ; .bashrc
|
|
+ "function failwith { return $1; }\n"
|
|
+ "function dummy { echo $?; }\n"
|
|
+ "function _dummy {\n"
|
|
+ " COMPREPLY=( dummy )\n"
|
|
+ "}\n"
|
|
+ "complete -F _dummy dummy\n"
|
|
+ "PS1='\$ '")
|
|
+ nil
|
|
+ ;; The first time initializes completion, the second time executes
|
|
+ ;; an already initialized completion. The two cases behave very
|
|
+ ;; differently, so we test both.
|
|
+ (dotimes (i 2)
|
|
+ (bash-completion_test-send (format "failwith %s" (+ 100 i)))
|
|
+ (should (equal
|
|
+ "dummy dummy "
|
|
+ (bash-completion_test-complete "dummy dum")))
|
|
+ (let ((start (line-beginning-position)))
|
|
+ (comint-send-input)
|
|
+ (bash-completion_test-wait-for-prompt start)))
|
|
+ ;; The status code printed by the dummy function should be the one
|
|
+ ;; from testfail, so 123, and not the one from the completion
|
|
+ ;; command executed to do completion for the dummy function.
|
|
+ (should (equal (bash-completion_test-buffer-string)
|
|
+ (concat "$ failwith 100\n"
|
|
+ "$ dummy dummy\n"
|
|
+ "100\n"
|
|
+ "$ failwith 101\n"
|
|
+ "$ dummy dummy\n"
|
|
+ "101\n"
|
|
+ "$ ")))))
|
|
+
|
|
;;; bash-completion-integration-test.el ends here
|