Merge pull request #138 from ldotlopez/master
I signed all commits first
This commit is contained in:
Tim Byrne
commit
0995f38b06
2 changed files with 109 additions and 17 deletions
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@ -118,10 +118,13 @@ def supported_configs():
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'yadm.auto-exclude',
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'yadm.auto-perms',
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'yadm.auto-private-dirs',
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'yadm.cipher',
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'yadm.git-program',
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'yadm.gpg-perms',
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'yadm.gpg-program',
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'yadm.gpg-recipient',
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'yadm.openssl-ciphername',
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'yadm.openssl-program',
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'yadm.ssh-perms',
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]
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123
yadm
123
yadm
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@ -39,6 +39,7 @@ HOOK_COMMAND=""
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FULL_COMMAND=""
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GPG_PROGRAM="gpg"
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OPENSSL_PROGRAM="openssl"
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GIT_PROGRAM="git"
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AWK_PROGRAM=("gawk" "awk")
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GIT_CRYPT_PROGRAM="git-crypt"
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@ -856,9 +857,93 @@ EOF
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}
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function _get_openssl_ciphername() {
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OPENSSL_CIPHERNAME="$(config yadm.openssl-ciphername)"
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if [ -z "$OPENSSL_CIPHERNAME" ]; then
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OPENSSL_CIPHERNAME="aes-256-cbc"
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fi
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echo "$OPENSSL_CIPHERNAME"
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}
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function _decrypt_from() {
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local output_archive
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output_archive="$1"
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local yadm_cipher
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yadm_cipher="$(config yadm.cipher)"
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if [ -z "$yadm_cipher" ]; then
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yadm_cipher="gpg"
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fi
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case "$yadm_cipher" in
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gpg)
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require_gpg
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$GPG_PROGRAM -d "$output_archive"
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;;
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openssl)
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require_openssl
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OPENSSL_CIPHERNAME="$(_get_openssl_ciphername)"
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$OPENSSL_PROGRAM enc -d "-${OPENSSL_CIPHERNAME}" -salt -in "$output_archive"
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;;
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*)
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error_out "Unknown cipher '$yadm_cipher'"
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;;
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esac
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}
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function _encrypt_to() {
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local output_archive
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output_archive="$1"
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local yadm_cipher
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yadm_cipher="$(config yadm.cipher)"
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if [ -z "$yadm_cipher" ]; then
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yadm_cipher="gpg"
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fi
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case "$yadm_cipher" in
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gpg)
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require_gpg
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#; Build gpg options for gpg
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GPG_KEY="$(config yadm.gpg-recipient)"
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if [ "$GPG_KEY" = "ASK" ]; then
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GPG_OPTS=("--no-default-recipient" "-e")
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elif [ "$GPG_KEY" != "" ]; then
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GPG_OPTS=("-e" "-r $GPG_KEY")
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else
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GPG_OPTS=("-c")
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fi
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$GPG_PROGRAM --yes "${GPG_OPTS[@]}" --output "$output_archive"
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;;
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openssl)
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require_openssl
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OPENSSL_CIPHERNAME="$(_get_openssl_ciphername)"
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$OPENSSL_PROGRAM enc -e "-${OPENSSL_CIPHERNAME}" -salt -out "$output_archive"
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;;
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*)
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error_out "Unknown cipher '$yadm_cipher'"
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;;
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esac
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}
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function decrypt() {
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require_gpg
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require_archive
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[ -f "$YADM_ENCRYPT" ] && exclude_encrypted
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@ -870,7 +955,7 @@ function decrypt() {
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fi
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# decrypt the archive
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if ($GPG_PROGRAM -d "$YADM_ARCHIVE" || echo 1) | tar v${tar_option}f - -C "$YADM_WORK"; then
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if (_decrypt_from "$YADM_ARCHIVE" || echo 1) | tar v${tar_option}f - -C "$YADM_WORK"; then
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[ ! "$DO_LIST" = "YES" ] && echo "All files decrypted."
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else
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error_out "Unable to extract encrypted files."
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@ -882,33 +967,19 @@ function decrypt() {
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function encrypt() {
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require_gpg
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require_encrypt
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exclude_encrypted
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parse_encrypt
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cd_work "Encryption" || return
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# Build gpg options for gpg
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GPG_KEY="$(config yadm.gpg-recipient)"
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if [ "$GPG_KEY" = "ASK" ]; then
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GPG_OPTS=("--no-default-recipient" "-e")
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elif [ "$GPG_KEY" != "" ]; then
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GPG_OPTS=("-e")
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for key in $GPG_KEY; do
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GPG_OPTS+=("-r $key")
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done
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else
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GPG_OPTS=("-c")
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fi
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# report which files will be encrypted
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echo "Encrypting the following files:"
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printf '%s\n' "${ENCRYPT_INCLUDE_FILES[@]}"
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echo
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# encrypt all files which match the globs
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if tar -f - -c "${ENCRYPT_INCLUDE_FILES[@]}" | $GPG_PROGRAM --yes "${GPG_OPTS[@]}" --output "$YADM_ARCHIVE"; then
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if tar -f - -c "${ENCRYPT_INCLUDE_FILES[@]}" | _encrypt_to "$YADM_ARCHIVE"; then
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echo "Wrote new file: $YADM_ARCHIVE"
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else
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error_out "Unable to write $YADM_ARCHIVE"
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@ -1107,10 +1178,14 @@ yadm.auto-alt
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yadm.auto-exclude
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yadm.auto-perms
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yadm.auto-private-dirs
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yadm.cygwin-copy
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yadm.cipher
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yadm.git-program
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yadm.gpg-perms
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yadm.gpg-program
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yadm.gpg-recipient
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yadm.openssl-ciphername
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yadm.openssl-program
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yadm.ssh-perms
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EOF
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}
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@ -1906,6 +1981,20 @@ function require_gpg() {
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command -v "$GPG_PROGRAM" &> /dev/null ||
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error_out "This functionality requires GPG to be installed, but the command '$GPG_PROGRAM' cannot be located.$more_info"
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}
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function require_openssl() {
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local alt_openssl
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alt_openssl="$(config yadm.openssl-program)"
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local more_info
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more_info=""
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if [ "$alt_openssl" != "" ] ; then
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OPENSSL_PROGRAM="$alt_openssl"
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more_info="\nThis command has been set via the yadm.openssl-program configuration."
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fi
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command -v "$OPENSSL_PROGRAM" >/dev/null 2>&1 || \
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error_out "This functionality requires OpenSSL to be installed, but the command '$OPENSSL_PROGRAM' cannot be located.$more_info"
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}
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function require_repo() {
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[ -d "$YADM_REPO" ] || error_out "Git repo does not exist. did you forget to run 'init' or 'clone'?"
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}
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