SmallThings/webdiff
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Fix shellcheck warnings

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This commit is contained in:
Martin Winkler
2022-03-25 23:36:56 +01:00
parent 525e1744cb
commit 74a5772d3d
1 changed files with 12 additions and 11 deletions
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23
webdiff.sh
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@@ -13,7 +13,7 @@ webdiff() {
local retval=0
local diffname="$1"
local diffurl="$2"
local diffline= # line count of current diff
local difflines= # line count of current diff
readonly _origin="$(cd "$(dirname -- "$(readlink -f "${BASH_SOURCE[0]}")")" && pwd)"
readonly newgrab="/tmp/webdiff/new_${diffname}"
@@ -23,7 +23,8 @@ webdiff() {
readonly wd_config="${_origin}/webdiff.conf"
# end if no configuration is found
. "${wd_config}" 2>/dev/null || { printf "No configuration found\n"; return 1; }
# shellcheck disable=SC1090
. "${wd_config}" 2>/dev/null || { printf 'No configuration found\n'; return 1; }
# check parameter
if [ $# -lt 2 ]; then
@@ -33,33 +34,33 @@ webdiff() {
shift 2
fi
mkdir -p "$(dirname "${newgrab}")" "$(dirname "${oldgrab}")"
mkdir -p "$(dirname "${newcurl}")" "$(dirname "${oldcurl}")"
# Save only the html <body> part for comparison
curl -sL "${diffurl}" | grep -v "script id=" \
| sed -n '/<body.*>/,/<\/body/p' > "${newgrab}" \
| sed -n '/<body.*>/,/<\/body/p' > "${newcurl}" \
|| { wd_callback_error "${diffname}" "${diffurl}" "curl"; return 1; }
# Apply custom sed command
if [[ "${1:-}" ]]; then
cat "${newgrab}" | sed "$@" > "${newgrab}.2"
mv "${newgrab}.2" "${newgrab}"
sed "$@" < "${newcurl}" > "${newcurl}.2"
mv "${newcurl}.2" "${newcurl}"
fi
# Initial diff shall not fail
[ ! -e "${oldgrab}" ] && cp "${newgrab}" "${oldgrab}"
[ ! -e "${oldcurl}" ] && cp "${newcurl}" "${oldcurl}"
# Write diff to file ${diffnow} and count lines
difflines=$(diff "${newgrab}" "${oldgrab}" 2>/dev/null | tee "${diffnow}" | wc -l 2>/dev/null)
difflines=$(diff "${newcurl}" "${oldcurl}" 2>/dev/null | tee "${diffnow}" | wc -l 2>/dev/null)
[ $? -gt 1 ] && { wd_callback_error "${diffname}" "${diffurl}" "diff"; return 1; }
if [ ${difflines} -ne 0 ]; then
if [ "${difflines}" -ne 0 ]; then
wd_callback_diff "${diffname}" "${diffurl}" "${difflines}" "${diffnow}"
install -b -S "_$(date +%Y%m%d_%H%M%S).bck" "${newgrab}" "${oldgrab}"
install -b -S "_$(date +%Y%m%d_%H%M%S).bck" "${newcurl}" "${oldcurl}"
retval=1
fi
rm -f "${newgrab}"
rm -f "${newcurl}"
return ${retval}
}