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From a9ce8e635ebac7e3924757c93a84619943862167 Mon Sep 17 00:00:00 2001
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From: Pino Toscano <ptoscano@redhat.com>
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Date: Tue, 22 Mar 2016 15:48:53 +0100
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Subject: [PATCH] appliance: use bash features for string matching in files
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Read the content of /proc/cmdline using bash features, and use its
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[[ ... ]] expression to find texts in a variable.
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This shaves off 5 grep invocations.
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(cherry picked from commit bb5d30ab2af5720775c63179afdec3ad9efd510d)
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---
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appliance/init | 12 +++++++-----
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1 file changed, 7 insertions(+), 5 deletions(-)
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diff --git a/appliance/init b/appliance/init
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index 3b76486..fd56033 100755
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--- a/appliance/init
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+++ b/appliance/init
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@@ -77,7 +77,9 @@ $UDEVD --daemon #--debug
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udevadm trigger
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udevadm settle --timeout=600
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-if grep -sq selinux=1 /proc/cmdline; then
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+cmdline=$(
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+
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+if [[ $cmdline == *selinux=1* ]]; then
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mount -t selinuxfs none /sys/fs/selinux
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fi
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@@ -93,16 +95,16 @@ shopt -u nullglob
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hwclock -u -s
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# Parse the kernel command line.
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-if grep -sq guestfs_verbose=1 /proc/cmdline; then
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+if [[ $cmdline == *guestfs_verbose=1* ]]; then
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guestfs_verbose=1
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fi
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-if grep -sq guestfs_network=1 /proc/cmdline; then
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+if [[ $cmdline == *guestfs_network=1* ]]; then
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guestfs_network=1
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fi
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-if grep -sq guestfs_rescue=1 /proc/cmdline; then
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+if [[ $cmdline == *guestfs_rescue=1* ]]; then
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guestfs_rescue=1
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fi
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-if grep -sq guestfs_noreboot=1 /proc/cmdline; then
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+if [[ $cmdline == *guestfs_noreboot=1* ]]; then
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guestfs_noreboot=1
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fi
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eval `grep -Eo 'guestfs_channel=[^[:space:]]+' /proc/cmdline`
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--
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7af31e |
1.8.3.1
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