271 lines
8.7 KiB
Plaintext
271 lines
8.7 KiB
Plaintext
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#!/usr/bin/env bash
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### Variables
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# log files
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LOGFILE="./jicofo.log"
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ROTATED_LOGFILE="./jicofo.log.1"
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# SQLite database file
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DB="./jitsi-stats.db"
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###
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# SQLite queries
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db_get_state="SELECT filename, filetime, filesize, position, inode FROM state WHERE jitsi_component = 'JICOFO';"
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db_set_state_template="UPDATE state SET time=datetime('now'), filename='%s', filetime='%s', filesize='%s', position='%s', inode='%s' WHERE jitsi_component = 'JICOFO';"
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db_insert_template="INSERT INTO conferences (conference_name, conference_id, start, end) VALUES ('%s', '%s', '%s', '%s');"
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db_create="
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DROP TABLE IF EXISTS conferences;
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CREATE TABLE conferences (
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id INTEGER PRIMARY_KEY,
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conference_name TEXT,
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conference_id TEXT,
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start TEXT,
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end TEXT
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);
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DROP TABLE IF EXISTS state;
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CREATE TABLE state (
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id INTEGER PRIMARY_KEY,
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jitsi_component TEXT,
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time TEXT,
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filename TEXT,
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filetime INTEGER,
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filesize INTEGER,
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position INTEGER CHECK(typeof(position)='integer'),
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inode INTEGER
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);
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INSERT OR REPLACE INTO state (id, jitsi_component, time, filename, filetime, filesize, position, inode) VALUES (1, 'JICOFO', '1970-01-01 00:00:00.000', '', 0, 0, 0, 0);"
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db_flush="
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DELETE FROM conferences;
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DELETE FROM state;
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INSERT OR REPLACE INTO state (id, jitsi_component, time, filename, filetime, filesize, position, inode) VALUES (1, 'JICOFO', '1970-01-01 00:00:00.000', '', 0, 0, 0, 0);"
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help="Usage:\n\t$0 [OPTION]\nOptions:\n\t--create-db|-d - create the database\n\t--flush|-f - flush the tables\n\t--check|-c - check for new data\n\t--parse|-p [-v] - parse the logs [verbosely]"
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###
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# First we check for requirements
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check_requirements() {
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# required programs, anything non-bash - edit as needed
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# deb packages - sqlite3, coreutils(stat,dd)
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local required_programs=("sqlite3" "stat" "dd")
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local requirements_missing=''
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for program in "${required_programs[@]}"; do
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if ! command -v "$program" &> /dev/null; then
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requirements_missing+="$program, "
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fi
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done
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if [[ "$requirements_missing" != '' ]]; then
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requirements_missing=${requirements_missing::-2}
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echo "Error: $requirements_missing - not found. Please install to proceed."
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fi
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}
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check_requirements
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###
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# DB functions
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# Get the last processed state from the database
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get_state() {
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sqlite3 "$DB" "$db_get_state"
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}
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# Update the state database
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set_state() {
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local filename=$1
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local filetime=$2
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local filesize=$3
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local position=${4:-0}
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local inode=$5
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db_set_state=$(printf "$db_set_state_template" "$filename" "$filetime" "$filesize" "$position" "$inode")
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sqlite3 "$DB" "$db_set_state"
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}
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###
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# Main parsing funstion
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jvb_log_parse() {
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local file=$1
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local start_pos=$2
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new_last_pos="$start_pos"
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# Local assoc array for conference events tracking
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declare -A start_times
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# Get size and position for progress tracking
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local total_size=$(stat -c '%s' "$file")
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local processed_lines=0
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local procesed_bytes=0
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# We open the file and start reading from $start_pos bytes
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exec 3<"$file"
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while IFS= read -r line; do
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# save new position (previous plus bytes in current line plus 1 for the new line)
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new_last_pos=$((new_last_pos + ${#line} + 1))
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# increment progress stats
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processed_lines=$((processed_lines + 1))
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processed_bytes=$((processed_bytes + ${#line} + 1))
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# show progress if in verbose mode
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if [[ "$verbose" == true ]]; then
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local percent=$((100 * processed_bytes / total_size))
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echo -ne "Processing: $percent% ($processed_lines lines, $processed_bytes bytes) \r"
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fi
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# locate conference starting event
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# if [[ "$line" =~ ([0-9-]+\ [0-9:.]+)\ [A-Z]+:.*\ Videobridge\.createConference#[0-9]+:\ create_conf,\ id=([a-zA-Z0-9]+) ]]; then
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if [[ "$line" =~ ([0-9-]+\ [0-9:.]+)\ [A-Z]+:.*\[room=([^ ]+)@.*\]\ JitsiMeetConferenceImpl\.joinTheRoom ]]; then
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timestamp="${BASH_REMATCH[1]}"
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conferenceName="${BASH_REMATCH[2]}"
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start_times["$conferenceName"]="$timestamp"
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# locate the corresponding conference ending event
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# elif [[ "$line" =~ ([0-9-]+\ [0-9:.]+)\ [A-Z]+:.*\[confId=([a-zA-Z0-9]+)\ .*conf_name=([^ ]+)@.*\]\ Conference\.expire ]]; then
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elif [[ "$line" =~ ([0-9-]+\ [0-9:.]+)\ [A-Z]+:.*\[room=([^ ]+)@.*\ meeting_id=([a-zA-Z0-9-]+)\]\ JitsiMeetConferenceImpl\.stop ]]; then
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end_time="${BASH_REMATCH[1]}"
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conferenceName="${BASH_REMATCH[2]}"
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conferenceId="${BASH_REMATCH[3]}"
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start_time="${start_times["$conferenceName"]}"
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if [[ -n "$start_time" ]]; then
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db_insert=$(printf "$db_insert_template" "$conferenceName" "$conferenceId" "$start_time" "$end_time")
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sqlite3 "$DB" "$db_insert"
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unset start_times["$conferenceName"]
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fi
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fi
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# We don't use pipe, but process substitution '<(dd...)' to avoid running while loop in subshell and lose the 'new_last_pos' value
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done < <(dd bs=1 skip="$start_pos" <&3 2>/dev/null)
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# Close the file descriptor
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exec 3<&-
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}
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###
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# commandline options
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while getopts ":dfcpv" opt; do
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case $opt in
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d)
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cmd="--create-db"
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;;
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f)
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cmd="--flush"
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;;
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c)
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cmd="--check"
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;;
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p)
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cmd="--parse"
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;;
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v)
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verbose=true
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;;
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\?)
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echo "Invalid option: -$OPTARG" >&2
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echo -e "$help"
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exit 1
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;;
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esac
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done
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shift $((OPTIND -1))
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case "$cmd" in
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--create-db)
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sqlite3 "$DB" "$db_create"
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echo "Database created."
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exit 0
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;;
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--flush)
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sqlite3 "$DB" "$db_flush"
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echo "Tables flushed."
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exit 0
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;;
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--check)
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# Retrieve last log file and position inside it
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IFS='|' read -r last_file last_filetime last_size last_pos last_inode <<< $(get_state)
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# Initialize logfile vars
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current_inode=$(stat -c '%i' "$LOGFILE")
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current_filetime=$(stat -c '%Y' "$LOGFILE")
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current_size=$(stat -c '%s' "$LOGFILE")
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if [[ "$last_file" == '' || "$last_inode" == 0 ]]; then
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echo "It looks like a fresh install. You can now run log parsing."
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exit 0
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fi
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# report
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echo "Last file: $last_file"
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echo "Last filetime: $last_filetime"
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echo "Last inode: $last_inode"
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echo "Last size: $last_size"
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echo "Last processed position: $last_pos"
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echo "Current filetime: $current_filetime"
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echo "Current inode: $current_inode"
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echo "Current size: $current_size"
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if [[ "$last_inode" == "$current_inode" && "$current_size" -lt "$last_pos" && -f "$ROTATED_LOGFILE" ]]; then
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echo "Log file has rotated."
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else
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echo "Log file has not rotated."
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fi
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if [[ "$current_filetime" -ne "$last_filetime" || "$current_size" -ne "$last_size" ]]; then
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echo "New lines have been added to the log."
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else
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echo "No new lines in the log."
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fi
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exit 0
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;;
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--parse)
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# Retrieve last log file and position inside it
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IFS='|' read -r last_file last_filetime last_size last_pos last_inode <<< $(get_state)
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# Initialize logfile vars
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last_pos=${last_pos:-0}
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current_inode=$(stat -c '%i' "$LOGFILE")
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current_filetime=$(stat -c '%Y' "$LOGFILE")
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current_size=$(stat -c '%s' "$LOGFILE")
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# Detect if the logfile was rotated (same inode, smaller size - copytruncate in logrotate)
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# parse the rotated log file
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if [[ "$last_inode" == "$current_inode" && "$current_size" -lt "$last_pos" && -f "$ROTATED_LOGFILE" ]]; then
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echo "Logfile was rotated. Processing the rotated log file: $ROTATED_LOGFILE"
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jvb_log_parse "$ROTATED_LOGFILE" 0 "$verbose"
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last_file="$ROTATED_LOGFILE"
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last_inode=$(stat -c '%i' "$ROTATED_LOGFILE")
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last_filetime=$(stat -c '%Y' "$ROTATED_LOGFILE")
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set_state "$last_file" "$last_filetime" "$last_size" "$last_pos" "$last_inode"
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fi
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# parse the current log file
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echo "Processing the current log file: $LOGFILE"
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jvb_log_parse "$LOGFILE" "$last_pos" "$verbose"
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if [[ "$verbose" == true ]]; then
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echo -e "\nNew last position after parsing: $new_last_pos"
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fi
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# update the state in db
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set_state "$LOGFILE" "$current_filetime" "$current_size" "$new_last_pos" "$current_inode"
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echo "Data import finished."
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exit 0
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;;
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*)
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echo -e "$help"
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exit 1
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;;
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esac
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