diff options
Diffstat (limited to 'vendor/github.com/prometheus/procfs/ttar')
| -rw-r--r-- | vendor/github.com/prometheus/procfs/ttar | 42 |
1 files changed, 33 insertions, 9 deletions
diff --git a/vendor/github.com/prometheus/procfs/ttar b/vendor/github.com/prometheus/procfs/ttar index b0171a12b5..19ef02b8d4 100644 --- a/vendor/github.com/prometheus/procfs/ttar +++ b/vendor/github.com/prometheus/procfs/ttar @@ -86,8 +86,10 @@ Usage: $bname [-C <DIR>] -c -f <ARCHIVE> <FILE...> (create archive) $bname [-C <DIR>] -x -f <ARCHIVE> (extract archive) Options: - -C <DIR> (change directory) - -v (verbose) + -C <DIR> (change directory) + -v (verbose) + --recursive-unlink (recursively delete existing directory if path + collides with file or directory to extract) Example: Change to sysfs directory, create ttar file from fixtures directory $bname -C sysfs -c -f sysfs/fixtures.ttar fixtures/ @@ -111,8 +113,9 @@ function set_cmd { } unset VERBOSE +unset RECURSIVE_UNLINK -while getopts :cf:htxvC: opt; do +while getopts :cf:-:htxvC: opt; do case $opt in c) set_cmd "create" @@ -136,6 +139,18 @@ while getopts :cf:htxvC: opt; do C) CDIR=$OPTARG ;; + -) + case $OPTARG in + recursive-unlink) + RECURSIVE_UNLINK="yes" + ;; + *) + echo -e "Error: invalid option -$OPTARG" + echo + usage 1 + ;; + esac + ;; *) echo >&2 "ERROR: invalid option -$OPTARG" echo @@ -212,16 +227,16 @@ function extract { local eof_without_newline if [ "$size" -gt 0 ]; then if [[ "$line" =~ [^\\]EOF ]]; then - # An EOF not preceeded by a backslash indicates that the line + # An EOF not preceded by a backslash indicates that the line # does not end with a newline eof_without_newline=1 else eof_without_newline=0 fi # Replace NULLBYTE with null byte if at beginning of line - # Replace NULLBYTE with null byte unless preceeded by backslash + # Replace NULLBYTE with null byte unless preceded by backslash # Remove one backslash in front of NULLBYTE (if any) - # Remove EOF unless preceeded by backslash + # Remove EOF unless preceded by backslash # Remove one backslash in front of EOF if [ $USE_PYTHON -eq 1 ]; then echo -n "$line" | python -c "$PYTHON_EXTRACT_FILTER" >> "$path" @@ -245,7 +260,16 @@ function extract { fi if [[ $line =~ ^Path:\ (.*)$ ]]; then path=${BASH_REMATCH[1]} - if [ -e "$path" ] || [ -L "$path" ]; then + if [ -L "$path" ]; then + rm "$path" + elif [ -d "$path" ]; then + if [ "${RECURSIVE_UNLINK:-}" == "yes" ]; then + rm -r "$path" + else + # Safe because symlinks to directories are dealt with above + rmdir "$path" + fi + elif [ -e "$path" ]; then rm "$path" fi elif [[ $line =~ ^Lines:\ (.*)$ ]]; then @@ -338,8 +362,8 @@ function _create { else < "$file" \ sed 's/EOF/\\EOF/g; - s/NULLBYTE/\\NULLBYTE/g; - s/\x0/NULLBYTE/g; + s/NULLBYTE/\\NULLBYTE/g; + s/\x0/NULLBYTE/g; ' fi if [[ "$eof_without_newline" -eq 1 ]]; then |