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busybox: Save shell history into /tmp

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Enable the busybox feature to save shell command history.
(.apk size increase 0.5 kB)

To prevent flash wear,
* save history only at the exit from a shell session, and
* set /tmp as the default location for the history file. The history
  is kept on ramdisk until a reboot, when the history is then lost.

If the user wants to save history onto flash, he can change the location
definition in /etc/profile.d/busybox-history-file.sh

Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>
Link: https://github.com/openwrt/openwrt/pull/17179
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
This commit is contained in:
Hannu Nyman 2024-12-05 22:28:45 +02:00 committed by Hauke Mehrtens
parent 0826b224b5
commit e23b37b2d9
3 changed files with 7 additions and 3 deletions
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4
package/utils/busybox/Config-defaults.in
View File

@ -255,10 +255,10 @@ config BUSYBOX_DEFAULT_FEATURE_EDITING_HISTORY
default 256
config BUSYBOX_DEFAULT_FEATURE_EDITING_SAVEHISTORY
bool
default n
default y
config BUSYBOX_DEFAULT_FEATURE_EDITING_SAVE_ON_EXIT
bool
default n
default y
config BUSYBOX_DEFAULT_FEATURE_REVERSE_SEARCH
bool
default n

4
package/utils/busybox/Makefile
View File

@ -6,7 +6,7 @@ include $(TOPDIR)/rules.mk
PKG_NAME:=busybox
PKG_VERSION:=1.37.0
PKG_RELEASE:=2
PKG_RELEASE:=3
PKG_FLAGS:=essential
PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
@ -143,6 +143,8 @@ define Package/busybox/install
$(INSTALL_DIR) $(1)/etc/init.d
$(INSTALL_DIR) $(1)/usr/sbin
$(CP) $(PKG_INSTALL_DIR)/* $(1)/
$(INSTALL_DIR) $(1)/etc/profile.d
$(INSTALL_BIN) ./files/busybox-history-file.sh $(1)/etc/profile.d
ifneq ($(CONFIG_BUSYBOX_$(BUSYBOX_SYM)_FEATURE_SYSLOG)$(CONFIG_BUSYBOX_$(BUSYBOX_SYM)_FEATURE_SYSLOGD_CFG),)
touch $(1)/etc/syslog.conf
endif

2
package/utils/busybox/files/busybox-history-file.sh Normal file
View File

@ -0,0 +1,2 @@
export HISTFILE=/tmp/.busybox_ash_history