first commit

.gitignore

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+.env
+sync/accounts.txt
+sync/failures.txt

compose.yml

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+services:
+  imapsync:
+    image: gilleslamiral/imapsync
+    restart: "no"
+    # command: imapsync --host1 $HOST1 --user1 $USR1 --password1 $IMAPSYNC_PASSWORD1 --host2 $HOST2 --user2 $USR2 --password2 $IMAPSYNC_PASSWORD2 --delete2duplicates --automap
+    command: bash /sync/sync_loop_unix.sh
+    volumes:
+      - "./sync:/sync"

sync/accounts.txt.sample

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+host001_1;user001_1;password001_1;host001_2;user001_2;password001_2;;

sync/sync_loop_unix.sh

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+#!/bin/sh
+#
+# $Id: sync_loop_unix.sh,v 1.14 2024/12/25 21:17:38 gilles Exp gilles $
+
+# Example for imapsync massive migration on Unix systems.
+# See also http://imapsync.lamiral.info/FAQ.d/FAQ.Massive.txt
+#
+# Data is supposed to be in accounts.txt in the following format:
+# host001_1;user001_1;password001_1;host001_2;user001_2;password001_2;;
+# ...
+# The separator is the character semi-colon ";"
+# this separator character can be changed to any character
+# by changing IFS=';' in the while loop below.
+#
+# Each line contains 7 columns. These columns are the 6 parameter values
+# for the imapsync command options
+# --host1 --user1 --password1 --host2 --user2 --password2
+# plus an extra column for extra parameters and a trailing fake column
+# to avoid CR LF part going in the 7th parameter extra.
+# So don't forget the last semicolon, especially on MacOS systems.
+#
+# You can also add extra options in this script after the variable "$@"
+# Those options will be applied in every imapsync run, for every line.
+
+# The imapsync command below is written in two lines to avoid a long line.
+# The character backslash \ at the end of the first line is means
+# "the command continues on the next line".
+#
+# Use character backslash \ at the end of each supplementary line,
+# except for the last line.
+#
+
+# You can also pass extra options via the parameters of this script since
+# they will be in "$@". Shell knowledge is your friend.
+
+# The credentials filename "accounts.txt" used for the loop can be renamed
+# by changing "accounts.txt" below.
+
+# The file file_failures.txt will contain the lines from accounts.txt that ended
+# up in error, for whatever reason. It's there to notice and replay easily
+# the failed imapsync runs. Is is emptied at the beginning of the loop run.
+# I let you junggle with it.
+
+SRC_FILE=/sync/accounts.txt
+FAIL_FILE=/sync/failures.txt
+GLOBAL_FLAGS="--noreleasecheck"
+
+echo Looping on accounts credentials found in $SRC_FILE
+echo
+line_counter=0
+# Empty the error listing
+> "$FAIL_FILE"
+{ while IFS=';' read h1 u1 p1 h2 u2 p2 extra fake
+    do
+        line_counter=$(expr 1 + $line_counter)
+        { echo "$h1" | tr -d '\r' | grep -E '^#|^ *$' ; } > /dev/null && continue # this skip commented lines in accounts.txt
+        echo "==== Starting imapsync with --host1 $h1 --user1 $u1 --host2 $h2 --user2 $u2 $extra $GLOBAL_FLAGS $@ ===="
+        echo Got those values from $SRC_FILE presented inside brackets: [$h1] [$u1] [$h2] [$u2] [$extra] [$fake]
+        if eval imapsync --host1 "$h1" --user1 "$u1" --password1 "$p1" \
+                    --host2 "$h2" --user2 "$u2" --password2 "$p2" $extra $GLOBAL_FLAGS "$@"
+        then
+                echo "success sync for line $line_counter "
+        else
+                echo "$h1;$u1;$p1;$h2;$u2;$p2;$extra;" | tee -a $FAIL_FILE
+        fi
+        echo "==== Ended imapsync with --host1 $h1 --user1 $u1 --host2 $h2 --user2 $u2 $extra $GLOBAL_FLAGS $@ ===="
+        echo
+    done
+} < $SRC_FILE