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base-files: Add /etc/shinit for non-login shell init

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Because /etc/profile (and ~/.profile) are read by login shells only,
aliases and functions defined there are not available to non-login
shells, e.g. when using screen or tmux.

If the ENV environment variable exists (exported by /etc/profile or
~/.profile) and references an existing file, then all interactive shells
(login or non-login) will read that file as well.

This sets the ENV environment variable in /etc/profile, pointing to
/etc/shinit.

This also adds /etc/shinit, which:

* Contains alias and function definitions originally in /etc/profile

* Sources /etc/mkshrc if the user is using mksh (also originally in
  /etc/profile), as /etc/mkshrc is meant for all interactive shells

* Sources ~/.mkshrc if the user is using mksh, to compensate for the
  fact that mksh will not read ~/.mkshrc if ENV is set

* Sources ~/.shinit if the user is not using mksh

This also removes the shebang from /etc/profile, as the file is sourced,
not executed.

Signed-off-by: Jeffery To <jeffery.to@gmail.com>
This commit is contained in:
Jeffery To 2019-05-03 02:24:27 +08:00 committed by Petr Štetiar
parent 2c3c83e40b
commit 12020f8a95
4 changed files with 24 additions and 20 deletions
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1
package/base-files/Makefile
View File

@ -72,6 +72,7 @@ define Package/base-files/conffiles
/etc/services
/etc/shadow
/etc/shells
/etc/shinit
/etc/sysctl.conf
/etc/sysupgrade.conf
$(call $(TARGET)/conffiles)

21
package/base-files/files/etc/profile
View File

@ -1,4 +1,3 @@
#!/bin/sh
[ -e /tmp/.failsafe ] && export FAILSAFE=1
[ -f /etc/banner ] && cat /etc/banner
@ -13,6 +12,7 @@ export PATH="%PATH%"
export HOME=$(grep -e "^${USER:-root}:" /etc/passwd | cut -d ":" -f 6)
export HOME=${HOME:-/root}
export PS1='\u@\h:\w\$ '
export ENV=/etc/shinit
case "$TERM" in
xterm*|rxvt*)
@ -20,16 +20,6 @@ case "$TERM" in
;;
esac
[ -x /bin/more ] || alias more=less
[ -x /usr/bin/vim ] && alias vi=vim || alias vim=vi
alias ll='ls -alF --color=auto'
[ -z "$KSH_VERSION" -o \! -s /etc/mkshrc ] || . /etc/mkshrc
[ -x /usr/bin/arp -o -x /sbin/arp ] || arp() { cat /proc/net/arp; }
[ -x /usr/bin/ldd ] || ldd() { LD_TRACE_LOADED_OBJECTS=1 $*; }
[ -n "$FAILSAFE" ] || {
for FILE in /etc/profile.d/*.sh; do
[ -e "$FILE" ] && . "$FILE"
@ -48,12 +38,3 @@ in order to prevent unauthorized SSH logins.
--------------------------------------------------
EOF
fi
service() {
[ -f "/etc/init.d/$1" ] || {
echo "service "'"'"$1"'"'" not found, the following services are available:"
ls "/etc/init.d"
return 1
}
/etc/init.d/$@
}

21
package/base-files/files/etc/shinit Normal file
View File

@ -0,0 +1,21 @@
[ -x /bin/more ] || alias more=less
[ -x /usr/bin/vim ] && alias vi=vim || alias vim=vi
alias ll='ls -alF --color=auto'
[ -z "$KSH_VERSION" -o \! -s /etc/mkshrc ] || . /etc/mkshrc
[ -x /usr/bin/arp -o -x /sbin/arp ] || arp() { cat /proc/net/arp; }
[ -x /usr/bin/ldd ] || ldd() { LD_TRACE_LOADED_OBJECTS=1 $*; }
service() {
[ -f "/etc/init.d/$1" ] || {
echo "service "'"'"$1"'"'" not found, the following services are available:"
ls "/etc/init.d"
return 1
}
/etc/init.d/$@
}
[ -n "$KSH_VERSION" -o \! -s "$HOME/.shinit" ] || . "$HOME/.shinit"
[ -z "$KSH_VERSION" -o \! -s "$HOME/.mkshrc" ] || . "$HOME/.mkshrc"

1
package/base-files/files/lib/upgrade/keep.d/base-files-essential
View File

@ -6,5 +6,6 @@
/etc/profile
/etc/shadow
/etc/shells
/etc/shinit
/etc/sysctl.conf
/etc/rc.local