diff options
Diffstat (limited to 'app-shells/bash/files')
| -rw-r--r-- | app-shells/bash/files/bashrc.d/10-gentoo-title.bash | 49 |
1 files changed, 29 insertions, 20 deletions
diff --git a/app-shells/bash/files/bashrc.d/10-gentoo-title.bash b/app-shells/bash/files/bashrc.d/10-gentoo-title.bash index 1fbf17c26327..0246d4fa36f0 100644 --- a/app-shells/bash/files/bashrc.d/10-gentoo-title.bash +++ b/app-shells/bash/files/bashrc.d/10-gentoo-title.bash @@ -1,5 +1,31 @@ # /etc/bash/bashrc.d/10-gentoo-title.bash +genfun_set_win_title() { + # Assigns the basename of the current working directory, having + # sanitised it with @Q parameter expansion. Useful for paths containing + # newlines and such. As a special case, names consisting entirely of + # graphemes shall not undergo the expansion, for reasons of cleanliness. + genfun_sanitise_cwd() { + _cwd=${PWD##*/} + if [[ ! ${_cwd} ]]; then + _cwd=${PWD} + elif [[ ${_cwd} == *[![:graph:]]* ]]; then + _cwd=${_cwd@Q} + fi + } + + # Sets the window title with the Set Text Parameters sequence. For + # screen, the sequence defines the hardstatus (%h) and for tmux, the + # window_name (#W). For graphical terminal emulators, it is normal for + # the title bar be affected. + genfun_set_win_title() { + genfun_sanitise_cwd + printf '\033]2;%s@%s - %s\007' "${USER}" "${HOSTNAME%%.*}" "${_cwd}" + } + + genfun_set_win_title +} + # Set window title with the Title Definition String sequence. For screen, the # sequence defines the window title (%t) and for tmux, the pane_title (#T). # For tmux to be affected requires that its allow-rename option be enabled. @@ -15,27 +41,14 @@ case ${TERM} in # If the TTY is that of sshd(8) then proceed no further. Alas, # there exist many operating environments in which the window # title would otherwise not be restored upon ssh(1) exiting. + # Users wishing to coerce the historical behaviour have the + # option of setting PROMPT_COMMAND=(genfun_set_win_title). if [[ ${SSH_TTY} && ${SSH_TTY} == "$(tty)" ]]; then return fi esac -# Assigns the basename of the current working directory, having sanitised it -# with @Q parameter expansion. Useful for paths containing newlines and such. -# As a special case, names consisting entirely of graphemes shall not undergo -# the parameter expansion, for reasons of cleanliness. -genfun_sanitise_cwd() { - _cwd=${PWD##*/} - if [[ ! ${_cwd} ]]; then - _cwd=${PWD} - elif [[ ${_cwd} == *[![:graph:]]* ]]; then - _cwd=${_cwd@Q} - fi -} - -# Set window title with the Set Text Parameters sequence. For screen, the -# sequence defines the hardstatus (%h) and for tmux, the window_name (#W). -# For graphical terminal emulators, it is normal for the title bar be affected. +# Determine whether the terminal can handle the Set Text Parameters sequence. # The only terminals permitted here are those for which there is empirical # evidence that the sequence is supported and that the UTF-8 character encoding # is handled correctly. Quite rightly, this precludes many vintage terminals. @@ -48,9 +61,5 @@ case ${TERM} in st-256color |\ tmux* |\ xterm* ) - genfun_set_win_title() { - genfun_sanitise_cwd - printf '\033]2;%s@%s - %s\007' "${USER}" "${HOSTNAME%%.*}" "${_cwd}" - } PROMPT_COMMAND+=('genfun_set_win_title') esac |