Bug fixes for deleting methods

backup.sh

@@ -1,4 +1,4 @@
-#!/bin/env bash
+#!/usr/bin/env bash
 
 # Minecraft server automatic backup management script
 # by Nicolas Chan
@@ -27,6 +27,7 @@ SUPPRESS_WARNINGS=false # Suppress warnings
 DATE_FORMAT="%F_%H-%M-%S"
 TIMESTAMP=$(date +$DATE_FORMAT)
 
+OPTIND=1
 while getopts 'a:bcd:e:f:ghi:l:m:o:p:qs:v' FLAG; do
   case $FLAG in
     a) COMPRESSION_ALGORITHM=$OPTARG ;;
@@ -68,7 +69,9 @@ done
 BASE_DIR=$(dirname "$(realpath "$0")")
 
 # shellcheck source=src/logging.sh
-source "$BASE_DIR/src/logging.sh"
+source "$BASE_DIR/src/logging.sh" \
+  -q "$SUPPRESS_WARNINGS" \
+  -v "$DEBUG"
 
 # Check for missing encouraged arguments
 if [[ $SCREEN_NAME == "" ]]; then

src/backup-methods/tar.sh

@@ -23,16 +23,14 @@ mkdir -p "$BACKUP_DIRECTORY"
 
 # Parse file timestamp to one readable by "date"
 parse-file-timestamp () {
-  local DATE_STRING
+  echo "$1" | awk -F_ '{gsub(/-/,":",$2); print $1" "$2}'
-  DATE_STRING=$(echo "$1" | awk -F_ '{gsub(/-/,":",$2); print $1" "$2}')
-  echo "$DATE_STRING"
 }
 
 # Delete a backup
 delete-backup () {
   local BACKUP=$1
   rm -f "$BACKUP_DIRECTORY/$BACKUP"
-  message-players "Deleted old backup" "$BACKUP"
+  echo "Deleted old backup" "$BACKUP"
 }
 
 # Sequential delete method
@@ -44,9 +42,9 @@ delete-sequentially () {
     BASENAME=$(basename "$BACKUP_NAME")
     BACKUPS_UNSORTED+=("$BASENAME")
   done
-  local BACKUPS=()
   # List oldest first
-  while IFS='' read -r line; do BACKUPS+=("$line"); done < <(IFS=$'\n' sort <<<"${BACKUPS_UNSORTED[*]}")
+  # shellcheck disable=SC2207
+  IFS=$'\n' BACKUPS=($(sort <<<"${BACKUPS_UNSORTED[*]}"))
 
   while [[ $MAX_BACKUPS -ge 0 && ${#BACKUPS[@]} -gt $MAX_BACKUPS ]]; do
     delete-backup "${BACKUPS[0]}"
@@ -57,9 +55,9 @@ delete-sequentially () {
       BASENAME=$(basename "$BACKUP_NAME")
       BACKUPS_UNSORTED+=("$BASENAME")
     done
-    local BACKUPS=()
     # List oldest first
-    while IFS='' read -r line; do BACKUPS+=("$line"); done < <(IFS=$'\n' sort <<<"${BACKUPS_UNSORTED[*]}")
+    # shellcheck disable=SC2207
+    IFS=$'\n' BACKUPS=($(sort <<<"${BACKUPS_UNSORTED[*]}"))
   done
 }
 
@@ -107,6 +105,7 @@ delete-thinning () {
   fi
 
   local CURRENT_INDEX=0
+
   local BACKUPS_UNSORTED_RAW=("$BACKUP_DIRECTORY"/*)
   local BACKUPS_UNSORTED=()
   for BACKUP_NAME in "${BACKUPS_UNSORTED_RAW[@]}"; do
@@ -114,9 +113,9 @@ delete-thinning () {
     BASENAME=$(basename "$BACKUP_NAME")
     BACKUPS_UNSORTED+=("$BASENAME")
   done
-  local BACKUPS=()
   # List newest first
-  while IFS='' read -r line; do BACKUPS+=("$line"); done < <(IFS=$'\n' sort -r <<<"${BACKUPS_UNSORTED[*]}")
+  # shellcheck disable=SC2207
+  IFS=$'\n' BACKUPS=($(sort -r <<<"${BACKUPS_UNSORTED[*]}"))
 
   for BLOCK_INDEX in "${!BLOCK_SIZES[@]}"; do
     local BLOCK_SIZE=${BLOCK_SIZES[BLOCK_INDEX]}
@@ -130,14 +129,8 @@ delete-thinning () {
 
     local OLDEST_BACKUP_TIMESTAMP
     OLDEST_BACKUP_TIMESTAMP=$(parse-file-timestamp "${OLDEST_BACKUP_IN_BLOCK:0:19}")
-    local BLOCK_COMMAND="$BLOCK_FUNCTION $OLDEST_BACKUP_TIMESTAMP"
 
-    if $BLOCK_COMMAND; then
+   if ! $BLOCK_FUNCTION "$OLDEST_BACKUP_TIMESTAMP"; then
-      # Oldest backup in this block satisfies the condition for placement in the next block
-      if $DEBUG; then
-        echo "$OLDEST_BACKUP_IN_BLOCK promoted to next block" 
-      fi
-    else
       # Oldest backup in this block does not satisfy the condition for placement in next block
       delete-backup "$OLDEST_BACKUP_IN_BLOCK"
       break

src/core.sh

@@ -1,12 +1,5 @@
 #!/usr/bin/env bash
 
-# Minecraft server automatic backup management script
-# by Nicolas Chan
-# https://github.com/nicolaschan/minecraft-backup
-# MIT License
-#
-# For most convenience, run automatically with cron.
-
 # This script implements the core functionality, and expects the following
 # functions to be defined by the method scripts:
 #
@@ -35,6 +28,7 @@ while [[ $1 != "--" ]]; do
 done
 shift
 
+OPTIND=1
 while getopts 'c:g:p:q:v:' FLAG; do
   case $FLAG in
     c) ENABLE_CHAT_MESSAGES=$OPTARG ;;
@@ -124,7 +118,7 @@ message-players-color () {
   local HOVER_MESSAGE=$3
   log-info "$MESSAGE ($HOVER_MESSAGE)"
   if $ENABLE_CHAT_MESSAGES; then
-  execute_command \
+  execute-command \
     "tellraw @a [\"\",{\"text\":\"[$PREFIX] \",\"color\":\"gray\",\"italic\":true},{\"text\":\"$MESSAGE\",\"color\":\"$COLOR\",\"italic\":true,\"hoverEvent\":{\"action\":\"show_text\",\"value\":{\"text\":\"\",\"extra\":[{\"text\":\"$HOVER_MESSAGE\"}]}}}]"
   fi
 }

src/logging.sh

@@ -3,6 +3,7 @@
 SUPPRESS_WARNINGS=false
 DEBUG=true
 
+OPTIND=1
 while getopts 'q:v:' FLAG; do
   case $FLAG in
     q) SUPPRESS_WARNINGS=$OPTARG ;;

test.sh

@@ -6,13 +6,18 @@ ITERATIONS=1000
 MINUTE_INTERVAL=30
 MINUTES_SINCE_START=0
 
+WORLD=test/world
+BACKUP_DIR=test/backups
+mkdir -p $WORLD
+echo "hello there" > "$WORLD/content.txt"
+
 if [[ $1 != "" ]]; then
   ITERATIONS=$1
 fi
 
-for (( c=1; c<=$ITERATIONS; c++ )); do
+for (( c=1; c<=ITERATIONS; c++ )); do
   TIMESTAMP=$(( START_TIMESTAMP + MINUTES_SINCE_START * 60 ))
   FILE_NAME=$(date -d "@$TIMESTAMP" +%F_%H-%M-%S)
-  ./backup.sh -q -i /home/nicolas/privatesurvival/world -o /home/nicolas/backups -f $FILE_NAME
+  ./backup.sh -q -s minecraft -i "$WORLD" -o "$BACKUP_DIR" -f "$FILE_NAME"
   (( MINUTES_SINCE_START += MINUTE_INTERVAL ))
 done