[ANN] my tool to compare kernel config file

Question

I'm trying to use lxc(see aur).
The requirement of kernel config is listing in http://lxc.teegra.net/
# name this as lxc.config
CONFIG_GROUP_SCHED=y
CONFIG_FAIR_GROUP_SCHED=y
CONFIG_RT_GROUP_SCHED=y
CONFIG_CGROUP_SCHED=y
CONFIG_CGROUPS=y
CONFIG_CGROUP_NS=y
CONFIG_CGROUP_FREEZER=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CPUSETS=y
CONFIG_PROC_PID_CPUSET=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_RESOURCE_COUNTERS=y
CONFIG_CGROUP_MEM_RES_CTLR=y
CONFIG_CGROUP_MEM_RES_CTLR_SWAP=y
CONFIG_MM_OWNER=y
CONFIG_NAMESPACES=y
CONFIG_UTS_NS=y
CONFIG_IPC_NS=y
CONFIG_USER_NS=y
CONFIG_PID_NS=y
CONFIG_NET_NS=y
CONFIG_NET_CLS_CGROUP=y
CONFIG_SECURITY_FILE_CAPABILITIES=y
CONFIG_DEVPTS_MULTIPLE_INSTANCES=y
I'm using prebuild linux_pf, guess its config file is in aur's config.x86_64.
So, I write a utility name as kernel_config_diff.go
http://pastebin.com/YxqEECBE
and run this command will show which config lines which I should append into config.
# yaourt -S gorun
kernel_config_diff.go req.config linux_pf.config
BTW, I don't know is there better solution.  I wrote this utility by Google Go because I like it and try to familiar to it.

Answer 1

Well, lxc.config is describe some config file should modify.
But, original config is a long listing.
So, use vimdiff will let you must view long lines of different.
By this script, I could get a quick view.
And even just append the output of this script into kernel config patch.
Here is my sample output compare to different variant kernel config
$ kernel_config_diff.go lxc.config /var/abs/local/linux/config.x86_64
CONFIG_SECURITY_FILE_CAPABILITIES=y
CONFIG_GROUP_SCHED=y
CONFIG_CGROUP_NS=y
# return exit code as 3
$ kernel_config_diff.go lxc.config /var/abs/local/linux-pf/config.x86_64
CONFIG_RT_GROUP_SCHED=y
CONFIG_FAIR_GROUP_SCHED=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_SECURITY_FILE_CAPABILITIES=y
CONFIG_GROUP_SCHED=y
CONFIG_CGROUP_NS=y
CONFIG_CGROUP_SCHED=y
# return exit code as 7
$ kernel_config_diff.go lxc.config /var/abs/local/linux-ck/config.x86_64
CONFIG_CGROUP_SCHED=y
CONFIG_RT_GROUP_SCHED=y
CONFIG_FAIR_GROUP_SCHED=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_SECURITY_FILE_CAPABILITIES=y
CONFIG_GROUP_SCHED=y
CONFIG_CGROUP_NS=y
# return exit code as 7
Last edited by dlin (2012-05-06 23:39:32)