Minecraft update (#407)

[xdg-ninja.git] / xdg-ninja.sh

diff --git a/xdg-ninja.sh b/xdg-ninja.sh
index c7633c07ff94da6e236b0e9f979fde93cd2c85f8..7a0b29ee8c10c648a0147d7ad850eeb06f5a0321 100755 (executable)
--- a/xdg-ninja.sh
+++ b/xdg-ninja.sh
@@ -1,42 +1,166 @@
-#!/bin/bash
+#!/usr/bin/env sh

 
 

-USE_GLOW=true
-if ! command -v glow &> /dev/null
-then
-    echo "Glow not found, markdown rendering not available."
-    USE_GLOW=false
-fi
+has_command() {
+    command -v "$1" >/dev/null 2>/dev/null
+    return $?
+}
+
+auto_set_decoder() {
+    DECODER="cat"
+    if has_command glow; then
+        DECODER="glow -"
+    elif has_command batcat; then
+        DECODER="batcat -pp --decorations=always --color=always --language markdown"
+        printf "Markdown rendering will be done by bat. (Glow is recommended)\n"
+    elif has_command bat; then
+        DECODER="bat -pp --decorations=always --color=always --language markdown"
+        printf "Markdown rendering will be done by bat. (Glow is recommended)\n"
+    elif has_command pygmentize; then
+        DECODER="pygmentize -l markdown"
+        printf "Markdown rendering will be done by pygmentize. (Glow is recommended)\n"
+    elif has_command highlight; then
+        DECODER="highlight --out-format ansi --syntax markdown"
+        printf "Markdown rendering will be done by highlight. (Glow is recommended)\n"
+    else
+        printf "Install glow for easier reading & copy-paste.\n"
+    fi
+}
+auto_set_decoder

 
 unalias -a
 
 
 unalias -a
 

-ERR=0
-WARN=1
-INFO=2
-SUCS=3
-HELP=4
+init_constants() {
+    FX_RESET="\033[0m"
+    FX_BOLD="\033[1m"
+    FX_ITALIC="\033[3m"
+
+    FG_RED="\033[31m"
+    FG_GREEN="\033[32m"
+    FG_YELLOW="\033[33m"
+    FG_CYAN="\033[36m"
+    FG_WHITE="\033[37m"
+
+    BG_MAGENTA="\033[45m"
+}
+init_constants
+
+help() {
+    init_constants
+    HELPSTRING="""\
+
+
+    ${FG_WHITE}${BG_MAGENTA}${FX_BOLD}xdg-ninja${FX_RESET}
+
+    ${FX_BOLD}${FX_ITALIC}Check your \$HOME for unwanted files.${FX_RESET}
+
+    ────────────────────────────────────
+
+    ${FX_ITALIC}--help${FX_RESET}              ${FX_BOLD}This help menu${FX_RESET}
+    ${FX_ITALIC}-h\033${FX_RESET}

 
 

-# Function to expand enviornment variables in string
+    ${FX_ITALIC}--no-skip-ok${FX_RESET}        ${FX_BOLD}Display messages for all files checked (verbose)${FX_RESET}
+    ${FX_ITALIC}-v${FX_RESET}
+
+    ${FX_ITALIC}--skip-ok${FX_RESET}           ${FX_BOLD}Don't display anything for files that do not exist (default)${FX_RESET}
+
+    ${FX_ITALIC}--skip-unsupported${FX_RESET}  ${FX_BOLD}Don't display anything for files that do not have fixes available${FX_RESET}
+
+    """
+    printf "%b\n" "$HELPSTRING"
+}
+
+SKIP_OK=true
+SKIP_UNSUPPORTED=false
+for i in "$@"; do
+    if [ "$i" = "--help" ] || [ "$i" = "-h" ]; then
+        help
+        exit
+    elif [ "$i" = "--skip-ok" ]; then
+        SKIP_OK=true
+    elif [ "$i" = "--no-skip-ok" ]; then
+        SKIP_OK=false
+    elif [ "$i" = "--skip-unsupported" ]; then
+        SKIP_UNSUPPORTED=true
+    elif [ "$i" = "-v" ]; then
+        SKIP_OK=false
+    fi
+done
+
+if [ -z "${XDG_DATA_HOME}" ]; then
+    printf '%b%s%b\n' "${FX_BOLD}${FG_CYAN}" "The \$XDG_DATA_HOME environment variable is not set, make sure to add it to your shell's configuration before setting any of the other environment variables!" "${FX_RESET}"
+    printf "%b    ⤷ The recommended value is: %b\$HOME/.local/share%b\n" "${FX_BOLD}${FG_CYAN}" "${FX_BOLD}${FX_ITALIC}" "${FX_RESET}"
+fi
+if [ -z "${XDG_CONFIG_HOME}" ]; then
+    printf '%b%s%b\n' "${FX_BOLD}${FG_CYAN}" "The \$XDG_CONFIG_HOME environment variable is not set, make sure to add it to your shell's configuration before setting any of the other environment variables!" "${FX_RESET}"
+    printf "%b    ⤷ The recommended value is: %b\$HOME/.config%b\n" "${FX_BOLD}${FG_CYAN}" "${FX_BOLD}${FX_ITALIC}" "${FX_RESET}"
+fi
+if [ -z "${XDG_STATE_HOME}" ]; then
+    printf '%b%s%b\n' "${FX_BOLD}${FG_CYAN}" "The \$XDG_STATE_HOME environment variable is not set, make sure to add it to your shell's configuration before setting any of the other environment variables!" "${FX_RESET}"
+    printf "%b    ⤷ The recommended value is: %b\$HOME/.local/state%b\n" "${FX_BOLD}${FG_CYAN}" "${FX_BOLD}${FX_ITALIC}" "${FX_RESET}"
+fi
+if [ -z "${XDG_CACHE_HOME}" ]; then
+    printf '%b%s%b\n' "${FX_BOLD}${FG_CYAN}" "The \$XDG_CACHE_HOME environment variable is not set, make sure to add it to your shell's configuration before setting any of the other environment variables!" "${FX_RESET}"
+    printf "%b    ⤷ The recommended value is: %b\$HOME/.cache%b\n" "${FX_BOLD}${FG_CYAN}" "${FX_BOLD}${FX_ITALIC}" "${FX_RESET}"
+fi
+if [ -z "${XDG_RUNTIME_DIR}" ]; then
+    printf '%b%s%b\n' "${FX_BOLD}${FG_CYAN}" "The \$XDG_RUNTIME_DIR environment variable is not set, make sure to add it to your shell's configuration before setting any of the other environment variables!" "${FX_RESET}"
+    printf "%b    ⤷ The recommended value is: %b/run/user/\$UID%b\n" "${FX_BOLD}${FG_CYAN}" "${FX_BOLD}${FX_ITALIC}" "${FX_RESET}"
+fi
+
+if ! command -v jq >/dev/null 2>/dev/null; then
+    printf "jq is needed to run this script, but it wasn't found. Please install it to be able to use this script.\n"
+    exit
+fi
+
+printf "\n"
+
+# Function to expand environment variables in string

 # https://stackoverflow.com/a/20316582/11110290
 apply_shell_expansion() {
 # https://stackoverflow.com/a/20316582/11110290
 apply_shell_expansion() {

-    declare data="$1"
-    declare delimiter="__apply_shell_expansion_delimiter__"
-    declare command="cat <<$delimiter"$'\n'"$data"$'\n'"$delimiter"
+    data="$1"
+    delimiter="__apply_shell_expansion_delimiter__"
+    command=$(printf "cat <<%s\n%s\n%s" "$delimiter" "$data" "$delimiter")

     eval "$command"
 }
 
     eval "$command"
 }
 

-# Returns 0 if the path doesn't lead anywhere
-# Return 1 if the path points to a file, 2 if it points to a directory
-check_not_exists_file() {
-    FILE_PATH=$(apply_shell_expansion "$1")
-    if [ -f "$FILE_PATH" ]; then
+# Function to check if a string contains shell pattern matching
+has_pattern() {
+    case $1 in
+    *\** | *\?* | *\[*\]*)
+        return 0
+        ;;
+    *)

         return 1
         return 1

-    elif [ -d "$FILE_PATH" ]; then
-        return 2
+        ;;
+    esac
+}
+
+# Returns the actual name of the given file that is on the user's disk
+# This command applies shell pattern matching and return the actual filename
+retrieve_existing_filename() {
+    FILE_PATH=$(apply_shell_expansion "$1")
+
+    # return filename if found, nothing else
+    if has_pattern "$FILE_PATH"; then
+        dir="$(dirname "$FILE_PATH")"
+        part="$(basename "$FILE_PATH")"
+        find "$dir" -maxdepth 1 -name "$part" -print -quit 2>/dev/null

     else
     else

-        return 0
+        if [ -e "$FILE_PATH" ]; then
+            printf "%s" "$FILE_PATH"
+        fi

     fi
 }
 
     fi
 }
 

+decode_string() {
+    printf "%s" "$1" | sed -e 's/\\n/\
+/g' -e 's/\\\"/\"/g' -e '$ s/\n*$/\
+\
+/' # Replace \n with literal newline and \" with ", normalize number of trailing newlines to 2
+}
+
+# Counter to keep track of how many files can be moved
+FIXABLE=0

 
 # Function to handle the formatting of output
 log() {
 
 # Function to handle the formatting of output
 log() {


@@ -47,84 +171,86 @@ log() {
 
     case "$MODE" in
 
 
     case "$MODE" in
 

-        ERR)
-            printf "[\e[1;31m$NAME\e[1;0m]: \e[1;3m$FILENAME\e[1;0m\n"
-            ;;
+    ERR)
+        printf '[%b%s%b]: %b%s%b\n' "${FX_BOLD}${FG_RED}" "$NAME" "${FX_RESET}" "${FX_BOLD}${FX_ITALIC}" "$FILENAME" "${FX_RESET}"
+        FIXABLE=$((FIXABLE+1))
+        ;;

 
 

-        WARN)
-            printf "[\e[1;33m$NAME\e[1;0m]: \e[1;3m$FILENAME\e[1;0m\n"
-            ;;
+    WARN)
+        [ "$SKIP_UNSUPPORTED" = false ] &&
+            printf '[%b%s%b]: %b%s%b\n' "${FX_BOLD}${FG_YELLOW}" "$NAME" "${FX_RESET}" "${FX_BOLD}${FX_ITALIC}" "$FILENAME" "${FX_RESET}"
+        ;;

 
 

-        INFO)
-            printf "[\e[1;36m$NAME\e[1;0m]: \e[1;3m$FILENAME\e[1;0m\n"
-            ;;
+    INFO)
+        printf '[%b%s%b]: %b%s%b\n' "${FX_BOLD}${FG_CYAN}" "$NAME" "${FX_RESET}" "${FX_BOLD}${FX_ITALIC}" "$FILENAME" "${FX_RESET}"
+        ;;

 
 

-        SUCS)
-            printf "[\e[1;32m$NAME\e[1;0m]: \e[1;3m$FILENAME\e[1;0m\n"
-            ;;
+    SUCS)
+        [ "$SKIP_OK" = false ] &&
+            printf '[%b%s%b]: %b%s%b\n' "${FX_BOLD}${FG_GREEN}" "$NAME" "${FX_RESET}" "${FX_BOLD}${FX_ITALIC}" "$FILENAME" "${FX_RESET}"
+        ;;

 
 

-        HELP)
-            if $USE_GLOW; then
-                echo "$HELP" | glow -
-            else
-                echo "$HELP"
-            fi
-            ;;
+    HELP)
+        decode_string "$HELP" | PAGER="cat" $DECODER
+        ;;

 
     esac
 }
 
 # Checks that the given file does not exist, otherwise outputs help
 check_file() {
 
     esac
 }
 
 # Checks that the given file does not exist, otherwise outputs help
 check_file() {

-    INPUT="$1"
-    NAME="$2"
-
-    FILENAME=$(echo -E "$INPUT" | jq -r .path)
-    MOVABLE=$(echo -E "$INPUT" | jq -r .movable)
-    HELP=$(echo -E "$INPUT" | jq -r .help)
-
-    check_not_exists_file "$FILENAME"
-
-    case $? in
+    NAME="$1"
+    FILENAME="$2"
+    MOVABLE="$3"
+    HELP="$4"

 
 

-        0)
-            log SUCS "$NAME" "$FILENAME" "$HELP"
-            ;;
+    file=$(retrieve_existing_filename "$FILENAME")

 
 

-        1 | 2)
-            if "$MOVABLE"; then
-                log ERR "$NAME" "$FILENAME" "$HELP"
-            else
-                log WARN "$NAME" "$FILENAME" "$HELP"
+    if [ "$file" ]; then
+        if [ "$MOVABLE" = true ]; then
+            log ERR "$NAME" "$file" "$HELP"
+        else
+            log WARN "$NAME" "$file" "$HELP"
+        fi
+        if [ "$HELP" ]; then
+            if [ "$MOVABLE" = true ] || [ "$SKIP_UNSUPPORTED" = false ]; then
+                log HELP "$NAME" "$file" "$HELP"

             fi
             fi

-            if ! [ -z "$HELP" ]; then
-                log HELP "$NAME" "$FILENAME" "$HELP"
-            else
-                log HELP "$NAME" "$FILENAME" "_No help available._"
-            fi
-            ;;
-
-    esac
+        else
+            log HELP "$NAME" "$file" "_No help available._"
+        fi
+    else
+        log SUCS "$NAME" "$file" "$HELP"
+    fi

 }
 
 }
 

-# Reads a file from programs/, calls check_file on each file specified for the program
-check_program() {
-    INPUT=$1
-
-    NAME=$(echo "$INPUT" | jq -r .name)
-
-    
-
-    while IFS= read -r file; do
-        check_file "$file" "$NAME"
-    done <<< "$(echo "$INPUT" | jq -rc '.files[]')"
+# Reads files from programs/, calls check_file on each file specified for each program
+do_check_programs() {
+    while IFS="
+" read -r name; read -r filename; read -r movable; read -r help; do
+        check_file "$name" "$filename" "$movable" "$help"
+    done <<EOF
+$(jq '.files[] as $file | .name, $file.path, $file.movable, $file.help' "$XN_PROGRAMS_DIR"/* | sed -e 's/^"//' -e 's/"$//')
+EOF
+# sed is to trim quotes

 }
 
 }
 

-# Loops over all files in the programs/ directory and calls check_program
-enumerate_programs() {
-    for prog_filename in "./programs/*"; do
-        check_program "$(cat $prog_filename)"
-    done
+check_programs() {
+    printf "%bStarting to check your %b\$HOME%b.\n" "${FX_BOLD}${FX_ITALIC}" "${FG_CYAN}" "${FX_RESET}"
+    printf "\n"
+    do_check_programs
+    printf "%bDone checking your %b\$HOME.%b\n" "${FX_BOLD}${FX_ITALIC}" "${FG_CYAN}" "${FX_RESET}"
+    printf "\n"
+    printf "%bIf you have files in your %b\$HOME%b that shouldn't be there, but weren't recognised by xdg-ninja, please consider creating a configuration file for it and opening a pull request on github.%b\n" "${FX_ITALIC}" "${FG_CYAN}" "${FX_RESET}${FX_ITALIC}" "${FX_RESET}"
+    printf "\n"

 }
 
 }
 

-enumerate_programs
+[ "$XN_PROGRAMS_DIR" ] ||
+    XN_PROGRAMS_DIR="$(realpath "$0" | xargs dirname | sed 's:/bin$:/share/xdg-ninja:g')/programs"
+
+check_programs
+if [ $FIXABLE -gt 100 ]; then
+    exit 101
+else
+    exit $FIXABLE
+fi