far2l/bootstrap/view.sh

   1 #!/bin/bash
   2 # This script used by Viewer to produce F5-toggled 'Processed view' content.
   3 # It gets input file as 1st argument, tries to analyze what is it and should
   4 # write any filetype-specific information into output file, given in 2nd argument.
   5 # Input: $1
   6 # Output: $2
   7
   8 FILE="$(file "$1")"
   9
  10 # Optional per-user script
  11 if [ -x ~/.config/far2l/view.sh ]; then
  12 . ~/.config/far2l/view.sh
  13 fi
  14
  15 echo "$FILE" > "$2"
  16 echo >> "$2"
  17
  18 if [[ "$FILE" == *" archive data, "* ]] \
  19                 || [[ "$FILE" == *" compressed data"* ]] \
  20                 || [[ "$FILE" == *": Debian "*" package"* ]] \
  21                 || [[ "$FILE" == *": RPM"* ]]; then
  22         if command -v exiftool >/dev/null 2>&1; then
  23                 exiftool "$1" | head -n 40 | head -c 1024 >>"$2" 2>&1
  24                 echo "" >>"$2" 2>&1
  25         else
  26                 echo "Install <exiftool> to see information" >>"$2" 2>&1
  27         fi
  28         echo "------------" >>"$2" 2>&1
  29         echo "Processing file as archive with 7z contents listing" >>"$2" 2>&1
  30         echo "----bof----" >>"$2" 2>&1
  31         if command -v 7z >/dev/null 2>&1; then
  32                 7z l "$1" >>"$2" 2>&1
  33         else
  34                 echo "Install <p7zip-full> to see information" >>"$2" 2>&1
  35         fi
  36         if [[ "$FILE" == *" compressed data"* ]]; then
  37                 echo "------------" >>"$2" 2>&1
  38                 echo "Processing file as archive with tar contents listing" >>"$2" 2>&1
  39                 TAROPTS=""
  40                 if [[ "$FILE" == *": gzip compressed data"* ]]; then
  41                         TAROPTS=-z
  42                 fi
  43                 if [[ "$FILE" == *": bzip2 compressed data"* ]]; then
  44                         TAROPTS=-j
  45                 fi
  46                 if [[ "$FILE" == *": XZ compressed data"* ]]; then
  47                         TAROPTS=-J
  48                 fi
  49                 if [[ "$FILE" == *": lzma compressed data"* ]]; then
  50                         TAROPTS=--lzma
  51                 fi
  52                 if [[ "$FILE" == *": lzop compressed data"* ]]; then
  53                         TAROPTS=--lzop
  54                 fi
  55                 if [[ "$FILE" == *": zstd compressed data"* ]]; then
  56                         TAROPTS=--zstd
  57                 fi
  58                 if [[ "$(tar --help | grep -e '--full-time' | wc -l)" == "1" ]]; then
  59                         TAROPTS=$TAROPTS" --full-time"
  60                 fi
  61                 echo "TAROPTS=[ "$TAROPTS" ]" >>"$2" 2>&1
  62                 echo "------------" >>"$2" 2>&1
  63                 ELEMENTCOUNT=$( tar -tv $TAROPTS -f "$1" 2>/dev/null | wc -l )
  64                 echo "tar archive elements count = "$ELEMENTCOUNT >>"$2" 2>&1
  65                 if [[ $ELEMENTCOUNT -gt 0 ]]; then
  66                         echo "------------" >>"$2" 2>&1
  67                         tar -tv $TAROPTS -f "$1" >>"$2" 2>&1
  68                         echo "------------" >>"$2" 2>&1
  69                         tar -tv $TAROPTS -f "$1" | \
  70                                 tee >/dev/null \
  71                                 >( CTOTAL=$( wc -l ) ; ( echo $CTOTAL' total' ; echo "----done----" ; ) >>"$2" 2>&1 ) \
  72                                 >( CFOLDERS=$( grep -e '^d' | wc -l ) ; ( echo $CFOLDERS' folders' ) >>"$2" 2>&1 ) \
  73                                 >( CFILES=$( grep -v -e '^d' | wc -l ) ; ( echo $CFILES' files' ) >>"$2" 2>&1 )
  74                 fi
  75         fi
  76         echo "----eof----" >>"$2" 2>&1
  77         exit 0
  78 fi
  79
  80 if [[ "$FILE" == *ELF*executable* ]] || [[ "$FILE" == *ELF*object* ]]; then
  81         if command -v exiftool >/dev/null 2>&1; then
  82                 exiftool "$1" | head -n 40 | head -c 1024 >>"$2" 2>&1
  83                 echo "" >>"$2" 2>&1
  84         else
  85                 echo "Install <exiftool> to see information" >>"$2" 2>&1
  86         fi
  87         echo "------------" >>"$2" 2>&1
  88         if command -v readelf >/dev/null 2>&1; then
  89                 readelf -n --version-info --dyn-syms "$1" >>"$2" 2>&1
  90         else
  91                 echo "Install <readelf> utility to see more information" >>"$2" 2>&1
  92         fi
  93         echo "----eof----" >>"$2" 2>&1
  94         exit 0
  95 fi
  96
  97 if [[ "$FILE" == *" image data, "* ]] \
  98         || [[ "$FILE" == *"JPEG image"* ]]; then
  99         # ??? workaround for bash to get values of variables
 100         bash -c "echo ${FOO}" >/dev/null 2>&1
 101         TCOLUMNS=$( bash -c "echo ${COLUMNS}" )
 102         TLINES=$( bash -c "echo ${LINES}" )
 103         TCOLUMNS=$(( ${TCOLUMNS:-80} - 0 ))
 104         TLINES=$(( ${TLINES:-25} - 2 ))
 105         VCHAFA="no"
 106         if command -v chafa >/dev/null 2>&1; then
 107                 VCHAFA="yes"
 108                 # chafa -c 16 --color-space=din99d --dither=ordered -w 9 --symbols all --fill all !.! && read -n1 -r -p "$1" >>"$2" 2>&1
 109                 chafa -c none --symbols -all+stipple+braille+ascii+space+extra --size ${TCOLUMNS}x${TLINES} "$1" >>"$2" 2>&1
 110                 echo "Image is viewed by chafa in "${TCOLUMNS}"x"${TLINES}" symbols sized area" >>"$2" 2>&1
 111                 chafa -c 16 --color-space=din99d -w 9 --symbols all --fill all "$1" && read -n1 -r -p "" >>"$2" 2>&1
 112                 clear
 113         else
 114                 echo "Install <chafa> to see picture" >>"$2" 2>&1
 115         fi
 116         VJP2A="no"
 117         if [[ "$FILE" == *"JPEG image"* ]] \
 118                 && [[ "$VCHAFA" == "no" ]]; then
 119                 if command -v jp2a >/dev/null 2>&1; then
 120                         VJP2A="yes"
 121                         # jp2a --colors "$1" >>"$2" 2>&1
 122                         # jp2a --size=${TCOLUMNS}x${TLINES} "$1" >>"$2" 2>&1
 123                         # jp2a --height=${TLINES} "$1" >>"$2" 2>&1
 124                         TCOLUMNS=$(( ${TCOLUMNS:-80} - 1 ))
 125                         jp2a --width=${TCOLUMNS} "$1" >>"$2" 2>&1
 126                         echo "Image is viewed by jp2a in "${TCOLUMNS}"x"${TLINES}" symbols sized area" >>"$2" 2>&1
 127                         jp2a --colors --term-fit "$1" && read -n1 -r -p "" >>"$2" 2>&1
 128                         clear
 129                 else
 130                         echo "Install <jp2a> to see colored picture" >>"$2" 2>&1
 131                 fi
 132         fi
 133         VASCIIART="no"
 134         if [[ "$VCHAFA" == "no" ]] \
 135                 && [[ "$VJP2A" == "no" ]]; then
 136                 if command -v asciiart >/dev/null 2>&1; then
 137                         VASCIIART="yes"
 138                         # asciiart -c "$1" >>"$2" 2>&1
 139                         asciiart "$1" >>"$2" 2>&1
 140                         echo "Image is viewed by asciiart in "${TCOLUMNS}"x"${TLINES}" symbols sized area" >>"$2" 2>&1
 141                         asciiart --color "$1" && read -n1 -r -p "" >>"$2" 2>&1
 142                         clear
 143                 else
 144                         echo "Install <asciiart> to see picture" >>"$2" 2>&1
 145                 fi
 146         fi
 147         echo "------------" >>"$2" 2>&1
 148         if command -v exiftool >/dev/null 2>&1; then
 149                 exiftool "$1" | head -n 40 | head -c 1024 >>"$2" 2>&1
 150                 echo "" >>"$2" 2>&1
 151         else
 152                 echo "Install <exiftool> to see information" >>"$2" 2>&1
 153         fi
 154         echo "----eof----" >>"$2" 2>&1
 155         exit 0
 156 fi
 157
 158 if [[ "$FILE" == *": Audio file"* ]]; then
 159         if command -v exiftool >/dev/null 2>&1; then
 160                 exiftool "$1" >>"$2" 2>&1
 161         else
 162                 echo "Install <exiftool> to see information" >>"$2" 2>&1
 163         fi
 164         echo "----eof----" >>"$2" 2>&1
 165         exit 0
 166 fi
 167
 168 if [[ "$FILE" == *": RIFF"*" data"* ]]; then
 169         if command -v exiftool >/dev/null 2>&1; then
 170                 exiftool "$1" >>"$2" 2>&1
 171         else
 172                 echo "Install <exiftool> to see information" >>"$2" 2>&1
 173         fi
 174         echo "----eof----" >>"$2" 2>&1
 175         exit 0
 176 fi
 177
 178 if [[ "$FILE" == *": BitTorrent file"* ]]; then
 179         if command -v exiftool >/dev/null 2>&1; then
 180                 exiftool "$1" >>"$2" 2>&1
 181         else
 182                 echo "Install <exiftool> to see information" >>"$2" 2>&1
 183         fi
 184         echo "----eof----" >>"$2" 2>&1
 185         exit 0
 186 fi
 187
 188 if [[ "$FILE" == *": HTML document"* ]]; then
 189         if command -v exiftool >/dev/null 2>&1; then
 190                 exiftool "$1" | head -n 40 | head -c 1024 >>"$2" 2>&1
 191                 echo "" >>"$2" 2>&1
 192         else
 193                 echo "Install <exiftool> to see information" >>"$2" 2>&1
 194         fi
 195         echo "------------" >>"$2" 2>&1
 196         echo "Processing file as html with pandoc ( formatted as markdown )" >>"$2" 2>&1
 197         echo "----bof----" >>"$2" 2>&1
 198         if command -v pandoc >/dev/null 2>&1; then
 199                 pandoc -f html -t markdown "$1" >>"$2" 2>&1
 200         else
 201                 echo "Install <pandoc> to see document" >>"$2" 2>&1
 202         fi
 203         echo "----eof----" >>"$2" 2>&1
 204         exit 0
 205 fi
 206
 207 if [[ "$FILE" == *": OpenDocument Text"* ]]; then
 208         if command -v exiftool >/dev/null 2>&1; then
 209                 exiftool "$1" | head -n 40 | head -c 1024 >>"$2" 2>&1
 210                 echo "" >>"$2" 2>&1
 211         else
 212                 echo "Install <exiftool> to see information" >>"$2" 2>&1
 213         fi
 214         echo "------------" >>"$2" 2>&1
 215         echo "Processing file as odt with pandoc ( formatted as markdown )" >>"$2" 2>&1
 216         echo "----bof----" >>"$2" 2>&1
 217         if command -v pandoc >/dev/null 2>&1; then
 218                 pandoc -f odt -t markdown "$1" >>"$2" 2>&1
 219         else
 220                 echo "Install <pandoc> to see document" >>"$2" 2>&1
 221         fi
 222         echo "----eof----" >>"$2" 2>&1
 223         exit 0
 224 fi
 225
 226 if [[ "$FILE" == *": EPUB document"* ]]; then
 227         if command -v exiftool >/dev/null 2>&1; then
 228                 exiftool "$1" | head -n 40 | head -c 1024 >>"$2" 2>&1
 229                 echo "" >>"$2" 2>&1
 230         else
 231                 echo "Install <exiftool> to see information" >>"$2" 2>&1
 232         fi
 233         echo "------------" >>"$2" 2>&1
 234         echo "Processing file as epub with pandoc ( formatted as markdown )" >>"$2" 2>&1
 235         echo "----bof----" >>"$2" 2>&1
 236         if command -v pandoc >/dev/null 2>&1; then
 237                 pandoc -f epub -t markdown "$1" >>"$2" 2>&1
 238         else
 239                 echo "Install <pandoc> to see document" >>"$2" 2>&1
 240         fi
 241         echo "----eof----" >>"$2" 2>&1
 242         exit 0
 243 fi
 244
 245 # if [[ "$FILE" == *" FictionBook2 ebook"* ]]; then
 246 if [[ "$FILE" == *": XML 1.0 document, UTF-8 Unicode text, with very long lines"* ]]; then
 247         if command -v exiftool >/dev/null 2>&1; then
 248                 exiftool "$1" | head -n 40 | head -c 1024 >>"$2" 2>&1
 249                 echo "" >>"$2" 2>&1
 250         else
 251                 echo "Install <exiftool> to see information" >>"$2" 2>&1
 252         fi
 253         echo "------------" >>"$2" 2>&1
 254         echo "Processing file as fb2 with pandoc ( formatted as markdown )" >>"$2" 2>&1
 255         echo "----bof----" >>"$2" 2>&1
 256         if command -v pandoc >/dev/null 2>&1; then
 257                 pandoc -f fb2 -t markdown "$1" >>"$2" 2>&1
 258         else
 259                 echo "Install <pandoc> to see document" >>"$2" 2>&1
 260         fi
 261         echo "----eof----" >>"$2" 2>&1
 262         exit 0
 263 fi
 264
 265 if [[ "$FILE" == *": Microsoft Word 2007+"* ]]; then
 266         if command -v pandoc >/dev/null 2>&1; then
 267                 pandoc "$1" >>"$2" 2>&1
 268         else
 269                 echo "Install <pandoc> to see document" >>"$2" 2>&1
 270         fi
 271         echo "----eof----" >>"$2" 2>&1
 272         exit 0
 273 fi
 274
 275 if [[ "$FILE" == *": Composite Document File"*"Microsoft Office Word"* ]]; then
 276         if command -v catdoc >/dev/null 2>&1; then
 277                 catdoc "$1" >>"$2" 2>&1
 278         else
 279                 echo "Install <catdoc> to see document" >>"$2" 2>&1
 280         fi
 281         echo "----eof----" >>"$2" 2>&1
 282         exit 0
 283 fi
 284
 285 if [[ "$FILE" == *": Composite Document File"*"Microsoft PowerPoint"* ]]; then
 286         if command -v catppt >/dev/null 2>&1; then
 287                 catppt "$1" >>"$2" 2>&1
 288         else
 289                 echo "Install <catppt> to see document" >>"$2" 2>&1
 290         fi
 291         echo "----eof----" >>"$2" 2>&1
 292         exit 0
 293 fi
 294
 295 if [[ "$FILE" == *": PDF document"* ]]; then
 296         if command -v pdftotext >/dev/null 2>&1; then
 297                 pdftotext -enc UTF-8 "$1" "$2" 2>>"$2"
 298         else
 299                 echo "Install <pdftotext> to see document" >>"$2" 2>&1
 300         fi
 301         echo "----eof----" >>"$2" 2>&1
 302         exit 0
 303 fi
 304
 305 if [[ "$FILE" == *": unified diff output"* ]]; then
 306         if command -v colordiff >/dev/null 2>&1; then
 307                 cat "$1" | colordiff --color=yes >>"$2" 2>&1
 308         else
 309                 echo "Install <colordiff> to see colored diff" >>"$2" 2>&1
 310         fi
 311         echo "----eof----" >>"$2" 2>&1
 312         exit 0
 313 fi
 314
 315 if [[ "$FILE" == *": "*" source, "*" text"* ]]; then
 316         if command -v ctags >/dev/null 2>&1; then
 317                 ctags --totals -x -u "$1" >>"$2" 2>&1
 318         else
 319                 echo "Install <ctags> to see source overview" >>"$2" 2>&1
 320         fi
 321         echo "----eof----" >>"$2" 2>&1
 322         exit 0
 323 fi
 324
 325 if [[ "$FILE" == *": ASCII text, with very long lines"* ]] \
 326                 || [[ "$FILE" == *": UTF-8 Unicode text, with very long lines"* ]]; then
 327         head -c 256 "$1" >>"$2" 2>&1
 328         echo "" >>"$2" 2>&1
 329         echo ............  >>"$2" 2>&1
 330         tail -c 256 "$1" >>"$2" 2>&1
 331         echo "" >>"$2" 2>&1
 332         exit 0
 333 fi
 334
 335 if [[ "$FILE" == *": ASCII text"* ]] \
 336                 || [[ "$FILE" == *": UTF-8 Unicode"* ]]; then
 337         head "$1" >>"$2" 2>&1
 338         echo ............  >>"$2" 2>&1
 339         tail "$1" >>"$2" 2>&1
 340         exit 0
 341 fi
 342
 343 echo "Hint: use <F5> to switch back to raw file viewer" >>"$2" 2>&1
 344 #exit 1