latest with basic command parsing

rc.local/latest.sh

@@ -0,0 +1,157 @@
+function latest (
+    # Find lastest modified files and grep them.
+    #
+    # This is really just a wrapper around find -exec grep,
+    # but it encapsulates some defaults/patterns I use a lot
+    #
+    #   - Looking for recently modified (AGE) files
+    #   - Looking at certain types of files (WHAT, e.g. .org)
+    #   - Looking in the current directory (WHERE) usually
+    #   - Grep(1)ing for file content (GREP)
+    #     + sometimes case insensitive
+    #     + usually using --color
+    #   - Ignoring junk (PRUNE)
+
+    # Define some logging aliases
+    source ~/lib/bash/bashutils.sh || `: # Use my library if available`\
+    `: fall back to echo`
+    alias info=echo && \
+    alias warn=echo && \
+    alias error=echo
+
+    #
+    # Defaults for parameters that control find(1)
+    #
+    WHAT=${1:-org}
+    AGE=${AGE:-7}
+    WHERE=${WHERE:-.}
+    # define filenames/paths to be ignored
+    #   "junk" stanard on linux systems
+    PRUNE_LINUX='git/|backups/|auto-save-list|config/|snap/|cache/|local/|mozilla/|target/|.rustup/|.cargo/'
+    #   junk specific to me  Your junk milage may vary.
+    PRUNE_JUST_ME='blog/docs'
+    PRUNE=".*(${PRUNE_JUST_ME}|${PRUNE_LINUX}).*"
+    #
+    # defaults for parameters that control grep of file content
+    #
+    GREP=${GREP:-}
+    #
+    # define errors to be ignored
+    #
+    # TODO grep out?
+
+    #
+    # Usage.  Show defaults.
+    #
+
+        function usage ()  {
+
+        message=${1:-""}
+        cat <<EOF 1>&2
+Usage: latest [options] [WHAT]
+
+       find the latest files and what's in them.
+
+Options
+  -a|--age=AGE         Max age of files to find.   Default: $AGE
+  -h|--help            print help text
+  -g|--grep=REGEX      Regex to grep in files.     Default: None.
+  -s|--sensitive       Grep is case sensitive.     Default: case insensitive.
+  -w|--where=DIR       Where to search for files.  Default: $WHERE
+
+Arguments
+  WHAT		Filenames to search for, in full path.  Default: $WHAT
+
+Examples:
+  # find latest .org files in current directorry
+  lastest
+
+  # find .sql files modified in the last 30 days in the home directory
+  latest -a 30 -w $HOME sql
+
+  # find python files with "pandas"
+  latest -g pandas .py
+
+EOF
+
+        if [[ "${message}" != "" ]]; then
+           echo 2>&1
+           error "${message}"
+        fi
+    }
+
+    # parse optons first
+    while [ $# > 0 ]; do
+      case ${1} in
+        -a|--age)	AGE="$1" && shift;;
+        -d|--debug)	DEBUG=1 && shift;;
+        -g|--grep)	REGEX="${1}" && shift;;
+        -h|--help)	usage && return 1;;
+        -w|--where)	WHERE="$1" && shift;;
+        -*)              error "Unknown flag: $1" && return 1;;
+        *)             break;;
+       esac
+    done
+
+    if [[ -v DEBUG ]]; then
+        cat <<EOF
+Variables:
+  AGE: $AGE
+  WHERE: $WHERE
+  WHAT: $WHAT
+  REGEX: ${REGEX:-None}
+EOF
+
+    fi
+    return
+
+
+    return
+
+]    [[ -v DEBUG ]] && set -x
+    if [ "${GREP}" == "" ]; then
+        # basic find functionality
+
+#        find . -regextype posix-extended -regex '.*(foo|r).*' -prune -o -print
+
+        # -xdev \
+
+        debug "prune is ${prune}"
+
+        find -L ${WHERE} \
+             `: global options` \
+             `: prune 'junk' files and dirs` \
+             -regextype posix-extended \
+             -xdev \
+             -regex "${prune}" -prune -o \
+             `: only look at regular files ` \
+             -type f \
+             `: restrict to mtime AGE days ago` \
+             -mtime -${AGE}\
+             `: restrict to files that match WHAT in full path` \
+             -regex ".*${WHAT}.*" \
+             -print #\
+            # TODO Add grep options
+            #   - Grep sring on command line
+            #     + only do --exec grep if present
+            #   - option for filenames only on grep -H
+            #   - optoon for case insensitive -i
+            #   - option for invert -v
+            # so probably some syntax like
+            #
+            # latest [locate options] WHAT [grep [grep optons] grep-regex]
+
+        #| grep ${WHAT}
+    else
+        # grep contents of files found
+        error locate does not yet implement grep for content
+    fi
+    [[ -v DEBUG ]] && set +x
+)
+
+# Define some logging aliases
+source ~/lib/bash/bashutils.sh || `: # Use my library if available`\
+    `: fall back to echo`
+    alias info=echo && \
+    alias warn=echo && \
+    alias error=echo