mirror of https://github.com/ryantm/agenix.git
add flake and default .nix files; add agenix command
This commit is contained in:
Ryan Mulligan
parent
4c2fd23693
commit
79244b4fc3
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@ -1,6 +1,4 @@
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{ pkgs ? import <nixpkgs> {} }:
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rec {
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age-nix = pkgs.writeScriptBin "age-nix" ''
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exit 0
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'';
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{
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agenix = pkgs.callPackage ./pkgs/agenix.nix {};
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}
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@ -0,0 +1,25 @@
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{
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"nodes": {
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"nixpkgs": {
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"locked": {
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"lastModified": 1599148892,
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"narHash": "sha256-V76c6DlI0ZZffvbBpxGlpVSpXxZ14QpFHwAvEEujIsY=",
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"owner": "NixOS",
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"repo": "nixpkgs",
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"rev": "7ff50a7f7b9a701228f870813fe58f01950f870b",
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"type": "github"
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},
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"original": {
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"id": "nixpkgs",
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"type": "indirect"
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}
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},
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"root": {
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"inputs": {
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"nixpkgs": "nixpkgs"
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}
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}
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},
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"root": "root",
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"version": 7
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}
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@ -12,7 +12,7 @@
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forAllSystems = f: nixpkgs.lib.genAttrs systems (system: f system);
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in {
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nixosModules.age = import ./modules/age.nix;
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# packages = forAllSystems (system: nixpkgs.legacyPackages.${system}.callPackage ./default.nix {});
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# defaultPackage = forAllSystems (system: self.packages.${system}.age-nix); #
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packages = forAllSystems (system: nixpkgs.legacyPackages.${system}.callPackage ./default.nix {});
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defaultPackage = forAllSystems (system: self.packages.${system}.agenix);
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};
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}
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@ -13,7 +13,6 @@ let
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chmod ${secretType.mode} "$TMP_FILE"
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chown ${secretType.owner}:${secretType.group} "$TMP_FILE"
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mv -f "$TMP_FILE" '${secretType.path}'
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'';
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installAllSecrets = builtins.concatStringsSep "\n" (map installSecret (builtins.attrValues cfg.secrets));
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@ -27,15 +26,12 @@ let
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'';
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};
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file = mkOption {
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type = types.either types.str types.path;
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type = types.path;
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description = ''
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Age file the secret is loaded from.
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'';
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};
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path = assert assertMsg (builtins.pathExists config.file) ''
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Cannot find path '${config.file}' set in 'age.secrets."${config._module.args.name}".file'
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'';
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mkOption {
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path = mkOption {
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type = types.str;
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default = "/run/secrets/${config.name}";
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description = ''
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@ -81,20 +77,15 @@ in {
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map (e: e.path) (lib.filter (e: e.type == "rsa" || e.type == "ed25519") config.services.openssh.hostKeys)
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else [];
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description = ''
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Path to SSH keys to be used as identities in age file decryption.
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Path to SSH keys to be used as identities in age decryption.
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'';
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};
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};
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config = mkIf (cfg.secrets != {}) {
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assertions = [{
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assertion = cfg.sshKeyPaths != [];
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message = "Either age.sshKeyPaths must be set.";
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}] ++ map (name: let
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inherit (cfg.secrets.${name}) file;
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in {
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assertion = builtins.isPath file;
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message = "${file} is not in the nix store. Either add it to the nix store.";
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}) (builtins.attrNames cfg.secrets);
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message = "age.sshKeyPaths must be set.";
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}];
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system.activationScripts.setup-secrets = stringAfter [ "users" "groups" ] installAllSecrets;
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};
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@ -0,0 +1,122 @@
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{writeShellScriptBin, runtimeShell, age, yq-go} :
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writeShellScriptBin "agenix" ''
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set -euo pipefail
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PACKAGE="agenix"
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function show_help () {
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echo "$PACKAGE - edit and rekey age secret files"
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echo " "
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echo "$PACKAGE -e FILE"
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echo "$PACKAGE -r"
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echo ' '
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echo 'options:'
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echo '-h, --help show help'
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echo '-e, --edit FILE edits FILE using $EDITOR'
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echo '-r, --rekey re-encrypts all secrets with specified recipients'
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echo ' '
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echo 'FILE an age-encrypted file'
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echo ' '
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echo 'EDITOR environment variable of editor to use when editing FILE'
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echo ' '
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echo 'RULES environment variable with path to YAML file specifying recipient public keys.'
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echo "Defaults to 'secrets.yaml'"
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}
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test $# -eq 0 && (show_help && exit 1)
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REKEY=0
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while test $# -gt 0; do
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case "$1" in
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-h|--help)
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show_help
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exit 0
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;;
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-e|--edit)
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shift
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if test $# -gt 0; then
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export FILE=$1
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else
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echo "no file specified"
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exit 1
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fi
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shift
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;;
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-r|--rekey)
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shift
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REKEY=1
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;;
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*)
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show_help
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exit 1
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;;
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esac
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done
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RULES=''${RULES:-secrets.yaml}
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function cleanup {
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if [ ! -z ''${CLEARTEXT_DIR+x} ]
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then
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rm -rf "$CLEARTEXT_DIR"
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fi
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if [ ! -z ''${REENCRYPTED_DIR+x} ]
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then
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rm -rf "$REENCRYPTED_DIR"
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fi
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}
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trap "cleanup" 0 2 3 15
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function edit {
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FILE=$1
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KEYS=$(${yq-go}/bin/yq r "$RULES" "secrets.(name==$FILE).public_keys.**")
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if [ -z "$KEYS" ]
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then
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>&2 echo "There is no rule for $FILE in $RULES."
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exit 1
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fi
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CLEARTEXT_DIR=$(mktemp -d)
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CLEARTEXT_FILE="$CLEARTEXT_DIR/$(basename "$FILE")"
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if [ -f "$FILE" ]
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then
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DECRYPT=(--decrypt)
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while IFS= read -r key
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do
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DECRYPT+=(--identity "$key")
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done <<<$(find ~/.ssh -maxdepth 1 -type f -not -name "*pub" -not -name "config" -not -name "authorized_keys" -not -name "known_hosts")
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DECRYPT+=(-o "$CLEARTEXT_FILE" "$FILE")
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${age}/bin/age "''${DECRYPT[@]}"
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fi
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$EDITOR "$CLEARTEXT_FILE"
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ENCRYPT=()
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while IFS= read -r key
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do
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ENCRYPT+=(--recipient "$key")
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done <<< "$KEYS"
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REENCRYPTED_DIR=$(mktemp -d)
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REENCRYPTED_FILE="$REENCRYPTED_DIR/$(basename "$FILE")"
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ENCRYPT+=(-o "$REENCRYPTED_FILE")
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cat "$CLEARTEXT_FILE" | ${age}/bin/age "''${ENCRYPT[@]}"
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mv -f "$REENCRYPTED_FILE" "$1"
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}
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function rekey {
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echo "rekeying..."
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FILES=$(${yq-go}/bin/yq r "$RULES" "secrets.*.name")
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for FILE in $FILES
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do
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EDITOR=: edit $FILE
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done
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}
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[ $REKEY -eq 1 ] && rekey && exit 0
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edit $FILE && exit 0
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''
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@ -0,0 +1,49 @@
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#! /usr/bin/env nix-shell
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#! nix-shell -i bash -p age yq-go moreutils
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while test $# -gt 0; do
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case "$1" in
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-h|--help)
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echo "$package - attempt to capture frames"
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echo " "
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echo "$package [options] application [arguments]"
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echo " "
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echo "options:"
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echo "-h, --help show brief help"
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echo "-a, --action=ACTION specify an action to use"
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echo "-o, --output-dir=DIR specify a directory to store output in"
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exit 0
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;;
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-a)
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shift
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if test $# -gt 0; then
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export PROCESS=$1
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else
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echo "no process specified"
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exit 1
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fi
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shift
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;;
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--action*)
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export PROCESS=`echo $1 | sed -e 's/^[^=]*=//g'`
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shift
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;;
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-o)
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shift
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if test $# -gt 0; then
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export OUTPUT=$1
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else
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echo "no output dir specified"
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exit 1
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fi
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shift
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;;
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--output-dir*)
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export OUTPUT=`echo $1 | sed -e 's/^[^=]*=//g'`
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shift
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;;
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*)
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break
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;;
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esac
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done
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