diff options
Diffstat (limited to 'sfeed_update')
| -rwxr-xr-x | sfeed_update | 68 |
1 files changed, 33 insertions, 35 deletions
diff --git a/sfeed_update b/sfeed_update index 5a8044a..7ce2d69 100755 --- a/sfeed_update +++ b/sfeed_update @@ -4,9 +4,7 @@ # defaults sfeedpath="$HOME/.sfeed" -sfeedfile="$sfeedpath/feeds" -# temporary file for new feeds (for merging). -sfeedfilenew="$sfeedfile.new" +sfeeddir="${sfeedpath}/feeds" # load config (evaluate shellscript). # loadconfig(configfile) @@ -22,10 +20,10 @@ loadconfig() { # load config: config is loaded here to be able to override above variables # (sfeedpath, sfeedfile, etc). - if [ -r "$config" ]; then - . "$config" + if [ -r "${config}" ]; then + . "${config}" else - echo "Configuration file \"$config\" does not exist or is not readable." >&2 + echo "Configuration file \"${config}\" does not exist or is not readable." >&2 echo "See sfeedrc.example for an example." >&2 exit 1 fi @@ -36,15 +34,14 @@ loadconfig() { merge() { # unique sort by id, link, title. # order by feedname (asc), timestamp (desc). - (cat "$1" "$2" 2> /dev/null) | - sort -t ' ' -u -k7,7 -k4,4 -k3,3 | - sort -t ' ' -k10,10 -k1r,1 + (sort -t ' ' -u -k7,7 -k4,4 -k3,3 "$1" "$2" 2>/dev/null) | + sort -t ' ' -k10,10 -k1r,1 } # fetch a feed via HTTP/HTTPS etc. -# fetchfeed(url, name) +# fetchfeed(url, name, feedfile) fetchfeed() { - if curl -f -s -S -L --max-time 15 -z "$sfeedfile" "$1"; then + if curl -f -s -S -L --max-time 15 -z "$3" "$1"; then printf " OK %s %s\n" "`date +'%H:%M:%S'`" "$2" >&2 else printf "FAIL %s %s\n" "`date +'%H:%M:%S'`" "$2" >&2 @@ -66,18 +63,27 @@ convertencoding() { # fetch and parse feed. # feed(name, feedurl, [basesiteurl], [encoding]) feed() { - (tmpfeedfile=$(mktemp -p "$TMPDIR") + (tmpfeedfile=$(mktemp -p "${sfeedtmpdir}") + name="$1" tmpencfile="" encoding="$4" - if [ ! "$encoding" = "" ]; then - fetchfeed "$2" "$1" | convertencoding "$encoding" "utf-8" + sfeedfile="${sfeeddir}/$1" + if [ ! "${encoding}" = "" ]; then + fetchfeed "$2" "$1" "${sfeedfile}" | convertencoding "${encoding}" "utf-8" else # detect encoding. - tmpencfile=$(mktemp -p "$TMPDIR") - fetchfeed "$2" "$1" > "$tmpencfile" - detectenc=$(sfeed_xmlenc < "$tmpencfile") - convertencoding "$detectenc" "utf-8" < "$tmpencfile" - rm -f "$tmpencfile" - fi | sfeed "$1 $2 $3" > "$tmpfeedfile") & + tmpencfile=$(mktemp -p "${sfeedtmpdir}") + fetchfeed "$2" "$1" "${sfeedfile}" > "${tmpencfile}" + detectenc=$(sfeed_xmlenc < "${tmpencfile}") + convertencoding "${detectenc}" "utf-8" < "${tmpencfile}" + rm -f "${tmpencfile}" + fi | sfeed "$3" > "${tmpfeedfile}" + + # get new data and merge with old. + sfeedfilenew="${sfeeddir}/${name}.new" + touch "${sfeedfile}" + merge "${sfeedfile}" "${tmpfeedfile}" > "${sfeedfilenew}" + # overwrite old file with updated file + mv "${sfeedfilenew}" "${sfeedfile}") & } terminated() { @@ -86,39 +92,31 @@ terminated() { cleanup() { # remove temporary files - rm -rf "$tmpfile" "$TMPDIR" + rm -rf "${sfeedtmpdir}" } feeds() { - echo "Configuration file \"$config\" is invalid or does not contain a \"feeds\" function." >&2 + echo "Configuration file \"${config}\" is invalid or does not contain a \"feeds\" function." >&2 echo "See sfeedrc.example for an example." >&2 } # load config file. loadconfig "$1" # fetch feeds and store in temporary file. -TMPDIR=$(mktemp -d "/tmp/sfeed_XXXXXX") +sfeedtmpdir="$(mktemp -d '/tmp/sfeed_XXXXXX')" # kill whole current process group on ^C. isrunning="1" # SIGTERM: signal to terminate parent. trap -- "terminated" "15" # SIGINT: kill all running childs >:D trap -- "kill -TERM -$$" "2" +# make sure path exists. +mkdir -p "${sfeeddir}" # fetch feeds specified in config file. feeds -# make sure path exists. -mkdir -p "$sfeedpath" # wait till all feeds are fetched (allows running in parallel). wait -# if terminated cleanup. -[ "$isrunning" = "0" ] && cleanup && exit 1 -# concat all individual feed files to a single file. -# NOTE: mktemp uses $TMPDIR for temporary directory. -tmpfile=$(mktemp "sfeed_XXXXXX") -find "$TMPDIR" -type f -exec cat {} \; > "$tmpfile" -# get new data and merge with old. -merge "$sfeedfile" "$tmpfile" > "$sfeedfilenew" -# overwrite old file with updated file -mv "$sfeedfilenew" "$sfeedfile" # cleanup temporary files etc. cleanup +# if terminated. +[ "${isrunning}" = "0" ] && exit 1 |