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-rwxr-xr-xreorder-maildir57
1 files changed, 57 insertions, 0 deletions
diff --git a/reorder-maildir b/reorder-maildir
new file mode 100755
index 0000000..d0801f8
--- /dev/null
+++ b/reorder-maildir
@@ -0,0 +1,57 @@
+#!/bin/bash
+
+if [ $# -ne 1 ] || [ -n "${1##*/courierimapuiddb}" ]; then
+ >&2 printf 'usage: %s dir/courierimapuiddb' "$0"
+ exit 1
+fi
+
+dir="${1%/courierimapuiddb}"
+
+>&2 printf 'reordering %s ...\n' "$dir"
+
+cd "${dir}/cur"
+
+tmp_dir=$(mktemp -d)
+trap 'rm -rf --one-file-system "${tmp_dir}"' EXIT
+
+while read -r n i; do
+ is_ok=true
+ if f=$(ls "${i}"*) \
+ && d=$(
+ sed -n '
+ /^$/q
+ s/^[Dd]ate: //
+ T
+ p
+ ' "$f" \
+ |head -n1
+ ) \
+ && [ -n "$d" ] \
+ && d=$(date +%s -d"$d"); then
+ printf '%s %s\n' "$d" "$i" \
+ >>"${tmp_dir}/to-sort"
+ else
+ printf '%s %s\n' "${i%%.*}" "$i"
+ fi
+done \
+< <(sed 1d ../courierimapuiddb)
+
+{
+ sed -n 1p ../courierimapuiddb
+ sort -k1n,1 "${tmp_dir}/to-sort" \
+ |cat -n \
+ |sed '
+ s/^\s*\(\S\+\)\s\+\S\+\s\+\(\S.*\)$/\1 \2/
+ '
+} \
+>"${tmp_dir}/sorted"
+
+if diff -u --color <(
+ sed 's/^\S\+ //' ../courierimapuiddb | sort
+) <(
+ sed 's/^\S\+ //' "${tmp_dir}/sorted" | sort
+); then
+ mv "${tmp_dir}/sorted" ../courierimapuiddb
+fi
+
+>&2 printf '... done\n'