Add new a tool ds.sh

A commandline script to upload given files to docspell. The URLs can
be configured using a configuration file.

tools/ds.sh

@@ -0,0 +1,173 @@
+#!/usr/bin/env bash
+
+# A simple bash script that reads a configuration file to know where
+# to upload a given file.
+#
+# The config file contains anonymous upload urls to docspell. All
+# files given to this script are uploaded to those urls.
+#
+# The default location for the five is
+# `~/.config/docspell/ds.conf'.
+#
+# The config file must contain lines of the form:
+#
+#   url.1=http://localhost:7880/api/v1/open/upload/item/<source-id>
+#   url.2=...
+#
+# Lines starting with a `#' are ignored.
+
+# saner programming env: these switches turn some bugs into errors
+set -o errexit -o pipefail -o noclobber -o nounset
+
+CURL_CMD="curl"
+FILE_CMD="file"
+GREP_CMD="grep"
+MKTEMP_CMD="mktemp"
+
+! getopt --test > /dev/null
+if [[ ${PIPESTATUS[0]} -ne 4 ]]; then
+    echo 'I’m sorry, `getopt --test` failed in this environment.'
+    exit 1
+fi
+
+OPTIONS=c:hsd
+LONGOPTS=config:,help,skip,delete
+
+! PARSED=$(getopt --options=$OPTIONS --longoptions=$LONGOPTS --name "$0" -- "$@")
+if [[ ${PIPESTATUS[0]} -ne 0 ]]; then
+    # e.g. return value is 1
+    #  then getopt has complained about wrong arguments to stdout
+    exit 2
+fi
+
+# read getopt’s output this way to handle the quoting right:
+eval set -- "$PARSED"
+
+delete=n skip=n help=n config="${XDG_CONFIG_HOME:-$HOME/.config}/docspell/ds.conf"
+while true; do
+    case "$1" in
+        -h|--help)
+            help=y
+            shift
+            ;;
+        -c|--config)
+            config="$2"
+            shift 2
+            ;;
+        -s|--skip)
+            skip="y"
+            shift
+            ;;
+        -d|--delete)
+            delete="y"
+            shift
+            ;;
+        --)
+            shift
+            break
+            ;;
+        *)
+            echo "Programming error"
+            exit 3
+            ;;
+    esac
+done
+
+
+info() {
+    echo "$1"
+}
+
+upload() {
+    tf=$($MKTEMP_CMD) rc=0
+    $CURL_CMD -# -o "$tf" --stderr "$tf" -w "%{http_code}" -XPOST -F file=@"$1" "$2" | (2>&1 1>/dev/null grep 200)
+    rc=$(expr $rc + $?)
+    cat $tf | (2>&1 1>/dev/null grep '{"success":true')
+    rc=$(expr $rc + $?)
+    if [ $rc -ne 0 ]; then
+        info "Upload failed. Exit code: $rc"
+        cat "$tf"
+        echo ""
+        rm "$tf"
+        return $rc
+    else
+        rm "$tf"
+        return 0
+    fi
+}
+
+showUsage() {
+    info "Upload files to docspell"
+    info ""
+    info "Usage: $0 [options] file [file ...]"
+    info ""
+    info "Options:"
+    info "  -c | --config        Provide a config file. (value: $config)"
+    info "  -s | --skip          Skip non-PDF files. Otherwise an error is raised. (value: $skip)"
+    info "  -d | --delete        Delete the files when successfully uploaded (value: $delete)"
+    info "  -h | --help          Prints this help text. (value: $help)"
+    info ""
+    info "Arguments:"
+    info "  One or more PDF files to upload."
+    info ""
+}
+
+mimetype() {
+    $FILE_CMD -b --mime-type "$1"
+}
+
+isPdf() {
+    mime=$(mimetype "$1")
+    [ "$mime" = "application/pdf" ]
+}
+
+
+if [ "$help" = "y" ]; then
+    showUsage
+    exit 0
+fi
+
+# handle non-option arguments
+if [[ $# -eq 0 ]]; then
+    echo "$0: No files given."
+    exit 4
+fi
+
+if [ "$skip" = "n" ]; then
+    IFS=$'\n'
+    for file in $*; do
+        if ! isPdf "$file"; then
+            info "Not a PDF file: $file"
+            exit 5
+        fi
+    done
+fi
+
+## Read the config file
+declare -a urls
+while IFS="=" read -r k v
+do
+    if [[ $k == url* ]]; then
+        urls+=($(echo "$v" | xargs))
+    fi
+done <<< $($GREP_CMD -v '^#.*' "$config")
+
+
+## Main
+IFS=$'\n'
+for file in $*; do
+    if isPdf "$file"; then
+        for url in "${urls[@]}"; do
+            info "Uploading '$file' to '$url'"
+            set +e
+            upload "$file" "$url"
+            set -e
+            if [ "$delete" = "y" ] && [ $rc -eq 0 ]; then
+                info "Deleting file: $file"
+                rm -f "$file"
+            fi
+        done
+    else
+        info "Skipping non-PDF file: $file"
+    fi
+done