mynix/agenix
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exit of sub commands fail; don't re-encrypt if there is no diff; apply some shellcheck suggestions

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This commit is contained in:
Ryan Mulligan 2020-09-03 16:51:23 -07:00
parent b381af08ec
commit f38625001d
1 changed files with 18 additions and 9 deletions
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27
pkgs/agenix.nix
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@ -1,6 +1,6 @@
{writeShellScriptBin, runtimeShell, age} :
writeShellScriptBin "agenix" ''
set -euo pipefail
set -Eeuo pipefail
PACKAGE="agenix"
@ -84,7 +84,7 @@ trap "cleanup" 0 2 3 15
function edit {
FILE=$1
KEYS=$(nix-instantiate --eval -E "(let rules = import $RULES; in builtins.concatStringsSep \"\n\" rules.\"$FILE\".public_keys)" | sed 's/"//g' | sed 's/\\n/\n/g')
KEYS=$((nix-instantiate --eval -E "(let rules = import $RULES; in builtins.concatStringsSep \"\n\" rules.\"$FILE\".public_keys)" | sed 's/"//g' | sed 's/\\n/\n/g') || exit 1)
if [ -z "$KEYS" ]
then
@ -101,13 +101,21 @@ function edit {
while IFS= read -r key
do
DECRYPT+=(--identity "$key")
done <<<$(find ~/.ssh -maxdepth 1 -type f -not -name "*pub" -not -name "config" -not -name "authorized_keys" -not -name "known_hosts")
done <<<"$((find ~/.ssh -maxdepth 1 -type f -not -name "*pub" -not -name "config" -not -name "authorized_keys" -not -name "known_hosts") || exit 1)"
DECRYPT+=(-o "$CLEARTEXT_FILE" "$FILE")
${age}/bin/age "''${DECRYPT[@]}"
${age}/bin/age "''${DECRYPT[@]}" || exit 1
cp "$CLEARTEXT_FILE" "$CLEARTEXT_FILE.before"
fi
$EDITOR "$CLEARTEXT_FILE"
if [ ! -f "$CLEARTEXT_FILE" ]
then
echo "$FILE wasn't created."
return
fi
[ -f "$FILE" ] && [ "$EDITOR" != ":" ] && diff "$CLEARTEXT_FILE.before" "$CLEARTEXT_FILE" 1>/dev/null && echo "$FILE wasn't changed, skipping re-encryption." && return
ENCRYPT=()
while IFS= read -r key
do
@ -119,21 +127,22 @@ function edit {
ENCRYPT+=(-o "$REENCRYPTED_FILE")
cat "$CLEARTEXT_FILE" | ${age}/bin/age "''${ENCRYPT[@]}"
${age}/bin/age "''${ENCRYPT[@]}" <"$CLEARTEXT_FILE" || exit 1
mv -f "$REENCRYPTED_FILE" "$1"
}
function rekey {
echo "rekeying..."
FILES=$(nix-instantiate --eval -E "(let rules = import $RULES; in builtins.concatStringsSep \"\n\" (builtins.attrNames rules))" | sed 's/"//g' | sed 's/\\n/\n/g')
FILES=$((nix-instantiate --eval -E "(let rules = import $RULES; in builtins.concatStringsSep \"\n\" (builtins.attrNames rules))" | sed 's/"//g' | sed 's/\\n/\n/g') || exit 1)
for FILE in $FILES
do
EDITOR=: edit $FILE
echo "rekeying $FILE..."
EDITOR=: edit "$FILE"
cleanup
done
}
[ $REKEY -eq 1 ] && rekey && exit 0
edit $FILE && exit 0
edit "$FILE" && cleanup && exit 0
''