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https://cgit.krebsco.de/krops
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populate: inline script
This commit is contained in:
tv
parent
50868155fd
commit
ea08f87819
3 changed files with 136 additions and 313 deletions
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@ -2,42 +2,26 @@ let
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lib = import ../../lib;
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in
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{ nix, openssh, populate, writeDash, writeJSON }: let
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populate' = name: { source, target }:
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writeDash "${name}-populate" ''
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set -efu
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source=${writeJSON "${name}-source.json" source}
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target=${target.user}@${target.host}:${target.port}${target.path}
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exec ${populate}/bin/populate "$target" < "$source"
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'';
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in {
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{ nix, openssh, populate, writeDash, writeJSON }: {
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writeDeploy = name: { source, target }: let
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target' = lib.mkTarget target;
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in
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writeDash name ''
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set -efu
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${populate' name { inherit source; target = target'; }}
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${populate { inherit source; target = target'; }}
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${openssh}/bin/ssh \
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${target'.user}@${target'.host} -p ${target'.port} \
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nixos-rebuild switch -I ${target'.path}
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'';
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writePopulate = name: { source, target }:
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populate' name {
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inherit source;
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target = lib.mkTarget target;
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};
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writeTest = name: { source, target }: let
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target' = lib.mkTarget target;
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in
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assert lib.isLocalTarget target';
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writeDash name ''
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set -efu
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${populate' name { inherit source; target = target'; }}
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${populate { inherit source; target = target'; }}
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${nix}/bin/nix-build \
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-A config.system.build.toplevel \
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-I ${target'.path} \
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@ -1,20 +1,139 @@
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{ coreutils, findutils, git, gnused, jq, openssh, pass, rsync, runCommand, stdenv }:
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with import ../../lib;
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with shell;
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{ coreutils, dash, findutils, git, jq, openssh, rsync, writeDash }:
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let
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PATH = stdenv.lib.makeBinPath [
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coreutils
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findutils
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git
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gnused
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jq
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openssh
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pass
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rsync
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check = { force, target }: let
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sentinelFile = "${target.path}/.populate";
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in shell' target /* sh */ ''
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${optionalString force /* sh */ ''
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mkdir -vp ${quote (dirOf sentinelFile)}
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touch ${quote sentinelFile}
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''}
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if ! test -f ${quote sentinelFile}; then
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>&2 printf 'error: missing sentinel file: %s\n' ${quote (
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optionalString (!isLocalTarget target) "${target.host}:" +
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sentinelFile
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)}
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exit 1
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fi
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'';
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pop.file = target: file: rsync' target (quote file.path);
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pop.git = target: git: shell' target /* sh */ ''
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if ! test -e ${quote target.path}; then
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git clone ${quote git.url} ${quote target.path}
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fi
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cd ${quote target.path}
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if ! url=$(git config remote.origin.url); then
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git remote add origin ${quote git.url}
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elif test "$url" != ${quote git.url}; then
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git remote set-url origin ${quote git.url}
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fi
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# TODO resolve git_ref to commit hash
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hash=${quote git.ref}
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if ! test "$(git log --format=%H -1)" = "$hash"; then
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if ! git log -1 "$hash" >/dev/null 2>&1; then
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git fetch origin
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fi
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git checkout "$hash" -- ${quote target.path}
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git -c advice.detachedHead=false checkout -f "$hash"
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fi
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git clean -dfx
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'';
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pop.pass = target: pass: let
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passPrefix = "${pass.dir}/${pass.name}";
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in /* sh */ ''
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umask 0077
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tmp_dir=$(${coreutils}/bin/mktemp -dt populate-pass.XXXXXXXX)
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trap cleanup EXIT
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cleanup() {
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rm -fR "$tmp_dir"
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}
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${findutils}/bin/find ${quote passPrefix} -type f |
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while read -r gpg_path; do
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rel_name=''${gpg_path#${quote passPrefix}}
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rel_name=''${rel_name%.gpg}
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pass_date=$(
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${git}/bin/git -C ${quote pass.dir} log -1 --format=%aI "$gpg_path"
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)
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pass_name=${quote pass.name}/$rel_name
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tmp_path=$tmp_dir/$rel_name
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${coreutils}/bin/mkdir -p "$(${coreutils}/bin/dirname "$tmp_path")"
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PASSWORD_STORE_DIR=${quote pass.dir} pass show "$pass_name" > "$tmp_path"
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${coreutils}/bin/touch -d "$pass_date" "$tmp_path"
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done
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${rsync' target /* sh */ "$tmp_dir"}
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'';
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pop.pipe = target: pipe: /* sh */ ''
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${quote pipe.command} | {
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${shell' target /* sh */ "cat > ${quote target.path}"}
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}
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'';
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# TODO rm -fR instead of ln -f?
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pop.symlink = target: symlink: shell' target /* sh */ ''
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ln -fns ${quote symlink.target} ${quote target.path}
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'';
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populate = target: name: source: let
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source' = source.${source.type};
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target' = target // { path = "${target.path}/${name}"; };
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in writeDash "populate.${target'.host}.${name}" ''
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set -efu
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${pop.${source.type} target' source'}
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'';
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rsync' = target: sourcePath: /* sh */ ''
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source_path=${sourcePath}
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if test -d "$source_path"; then
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source_path=$source_path/
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fi
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${rsync}/bin/rsync \
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-e ${quote (ssh' target)} \
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-vFrlptD \
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--delete-excluded \
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"$source_path" \
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${quote (
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optionalString (!isLocalTarget target)
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"${target.user}@${target.host}:" +
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target.path
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)}
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'';
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shell' = target: script:
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if isLocalTarget target
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then script
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else /* sh */ ''
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${ssh' target} ${quote target.host} ${quote script}
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'';
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ssh' = target: concatMapStringsSep " " quote [
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"${openssh}/bin/ssh"
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"-l" target.user
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"-o" "ControlPersist=no"
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"-p" target.port
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"-T"
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];
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in
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runCommand "populate-2.2.0" {} ''
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mkdir -p $out/bin
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cp ${./populate.sh} $out/bin/populate
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sed -i '1s,.*,&\nPATH=${PATH},' $out/bin/populate
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{ force ? false, source, target }: writeDash "populate.${target.host}" ''
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set -efu
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${check { inherit force target; }}
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set -x
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${concatStringsSep "\n" (mapAttrsToList (populate target) source)}
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''
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@ -1,280 +0,0 @@
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#! /bin/sh
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set -efu
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main() {(
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self=$(readlink -f "$0")
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basename=${0##*/}
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debug=false
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force=false
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origin_host=${HOSTNAME-cat /proc/sys/kernel/hostname}
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origin_user=$LOGNAME
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target_spec=
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abort=false
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error() {
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echo "$basename: error: $1" >&2
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abort=true
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}
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for arg; do
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case $arg in
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--force)
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force=true
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;;
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-*)
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error "bad argument: $arg"
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;;
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*)
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if test -n "$target_spec"; then
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error "bad argument: $arg"
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else
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target_spec=$arg
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fi
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;;
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esac
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done
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if test -z "$target_spec"; then
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error 'no target specified'
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fi
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if test "$abort" = true; then
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exit 11
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fi
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target=$(
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export origin_host
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export origin_user
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echo "$target_spec" | jq -R '
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def default(value; f): if . == null then value else f end;
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def default(value): default(value; .);
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match("^(?:([^@]+)@)?(?:([^:/]+))?(?::([^/]+))?(/.*)?")
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user: .captures[0].string | default(env.origin_user),
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host: .captures[1].string | default(env.origin_host),
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port: .captures[2].string | default(22;
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if test("^[0-9]+$") then fromjson else
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error(@json "bad target port: \(.)")
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end),
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path: .captures[3].string | default("/var/src"),
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}
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'
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)
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echo $target | jq . >&2
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target_host=$(echo $target | jq -r .host)
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target_path=$(echo $target | jq -r .path)
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target_port=$(echo $target | jq -r .port)
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target_user=$(echo $target | jq -r .user)
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if test "$force" = true; then
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force_target
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else
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check_target
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fi
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jq -c 'to_entries | group_by(.value.type) | flatten[]' |
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while read -r source; do
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key=$(echo "$source" | jq -r .key)
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type=$(echo "$source" | jq -r .value.type)
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conf=$(echo "$source" | jq -r .value.${type})
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printf '\e[1;33m%s\e[m\n' "populate_$type $key $conf" >&2
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populate_"$type" "$key" "$conf"
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done
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)}
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# Safeguard to prevent clobbering of misspelled targets.
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# This function has to be called first.
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check_target() {
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{
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echo target_host=$(quote "$target_host")
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echo target_path=$(quote "$target_path")
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echo 'sentinel_file=$target_path/.populate'
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echo 'if ! test -f "$sentinel_file"; then'
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echo ' echo "error: missing sentinel file: $target_host:$sentinel_file" >&2'
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echo ' exit 1'
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echo 'fi'
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} \
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target_shell
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}
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force_target() {
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{
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echo target_path=$(quote "$target_path")
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echo 'sentinel_file=$target_path/.populate'
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echo 'mkdir -vp "$target_path"'
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echo 'touch "$sentinel_file"'
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} \
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target_shell
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}
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is_local_target() {
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test "$target_host" = "$origin_host" &&
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test "$target_user" = "$origin_user"
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}
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populate_file() {(
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file_name=$1
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file_path=$(echo "$2" | jq -r .path)
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if is_local_target; then
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file_target=$target_path/$file_name
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else
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file_target=$target_user@$target_host:$target_path/$file_name
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fi
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if test -d "$file_path"; then
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file_path=$file_path/
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fi
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rsync \
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-vFrlptD \
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--delete-excluded \
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"$file_path" \
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-e "ssh -o ControlPersist=no -p $target_port" \
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"$file_target"
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)}
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populate_git() {(
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git_name=$1
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git_url=$(echo "$2" | jq -r .url)
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git_ref=$(echo "$2" | jq -r .ref)
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git_work_tree=$target_path/$git_name
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{
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echo set -efu
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echo git_url=$(quote "$git_url")
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echo git_ref=$(quote "$git_ref")
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echo git_work_tree=$(quote "$git_work_tree")
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echo 'if ! test -e "$git_work_tree"; then'
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echo ' git clone "$git_url" "$git_work_tree"'
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echo 'fi'
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echo 'cd $git_work_tree'
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echo 'if ! url=$(git config remote.origin.url); then'
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echo ' git remote add origin "$git_url"'
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echo 'elif test "$url" != "$git_url"; then'
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echo ' git remote set-url origin "$git_url"'
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echo 'fi'
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# TODO resolve git_ref to commit hash
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echo 'hash=$git_ref'
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echo 'if ! test "$(git log --format=%H -1)" = "$hash"; then'
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echo ' if ! git log -1 "$hash" >/dev/null 2>&1; then'
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echo ' git fetch origin'
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echo ' fi'
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echo ' git checkout "$hash" -- "$git_work_tree"'
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echo ' git -c advice.detachedHead=false checkout -f "$hash"'
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echo 'fi'
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echo 'git clean -dfx'
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} \
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target_shell
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)}
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populate_pass() {(
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pass_target_name=$1
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pass_dir=$(echo "$2" | jq -r .dir)
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pass_name_root=$(echo "$2" | jq -r .name)
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if is_local_target; then
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pass_target=$target_path/$pass_target_name
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else
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pass_target=$target_user@$target_host:$target_path/$pass_target_name
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fi
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umask 0077
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tmp_dir=$(mktemp -dt populate-pass.XXXXXXXX)
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trap cleanup EXIT
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cleanup() {
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rm -fR "$tmp_dir"
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}
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pass_prefix=$pass_dir/$pass_name_root/
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find "$pass_prefix" -type f |
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while read -r pass_gpg_file_path; do
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rel_name=${pass_gpg_file_path:${#pass_prefix}}
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rel_name=${rel_name%.gpg}
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pass_name=$pass_name_root/$rel_name
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tmp_path=$tmp_dir/$rel_name
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mkdir -p "$(dirname "$tmp_path")"
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PASSWORD_STORE_DIR=$pass_dir pass show "$pass_name" > "$tmp_path"
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done
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rsync \
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--checksum \
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-vFrlptD \
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--delete-excluded \
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"$tmp_dir"/ \
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-e "ssh -o ControlPersist=no -p $target_port" \
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"$pass_target"
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)}
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populate_pipe() {(
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pipe_target_name=$1
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pipe_command=$(echo "$2" | jq -r .command)
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result_path=$target_path/$pipe_target_name
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"$pipe_command" | target_shell -c "cat > $(quote "$result_path")"
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)}
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populate_symlink() {(
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symlink_name=$1
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symlink_target=$(echo "$2" | jq -r .target)
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link_name=$target_path/$symlink_name
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{
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# TODO rm -fR instead of ln -f?
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echo ln -fns $(quote "$symlink_target" "$link_name")
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} \
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target_shell
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)}
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quote() {
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printf %s "$1" | sed 's/./\\&/g'
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while test $# -gt 1; do
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printf ' '
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shift
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printf %s "$1" | sed 's/./\\&/g'
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done
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echo
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}
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target_shell() {
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if is_local_target; then
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/bin/sh "$@"
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else
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ssh "$target_host" \
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-l "$target_user" \
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-o ControlPersist=no \
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-p "$target_port" \
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-T \
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/bin/sh "$@"
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fi
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}
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main "$@"
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