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Platon Pronko 5d8ba5dd9c Fix initialization hook in the PROMPT_COMMAND array on Bash 5.1+ 
If PROMPT_COMMAND contains unrelated commands before installing
bash-preexec, then these unrelated commands may trigger
`__bp_preexec_invoke_exec`, which causes interactive mode marker to be
unset.  This causes preexec to be missed for the first interactive
command, since bash-preexec assumes that we are still not interactive.

Example of what can trigger such behavior: on Arch Linux in a login
shell /etc/profile.d/80-systemd-osc-context.sh causes
`__systemd_osc_context_precmdline` to be added to PROMPT_COMMAND, and
`__systemd_osc_context_precmdline` trips
`__bp_preexec_interactive_mode`.

This patch avoids the issue by appending our initialization hook as
the last element of PROMPT_COMMAND in Bash >= 5.1, instead of
appending the hook to the first element of PROMPT_COMMAND.
2026-04-08 11:39:54 +09:00
..
bash-preexec.bats Fix initialization hook in the PROMPT_COMMAND array on Bash 5.1+ 2026-04-08 11:39:54 +09:00
include-test.bats Don't load if old version already present (Fixes rcaloras/bash-preexec#146) (#150) 2024-01-23 23:56:16 -05:00
README.md Change [[ to [ in tests where possible (#99) 2019-09-07 16:05:29 -04:00

README.md

Testing bash-preexec

Note on test conditions

When writing test conditions, use [ ... ] instead of [[ ... ]] since the former are supported by Bats on Bash versions before 4.1. In particular, macOS uses Bash 3.2, and [[ ... ]] tests always pass on macOS.

In some cases, you may want to use a feature unique to [[ ... ]] such as pattern matching ([[ $name = a* ]]) or regular expressions ([[ $(date) =~ ^Fri\ ...\ 13 ]]). In those cases, use the following pattern to replace “bare” [[ ... ]].

[[ ... ]] || return 1

References: