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https://github.com/fish-shell/fish-shell
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e330dafd24
A key frustration with the prior version of mkvextract completions was that even in a position where a filename would be expected, no completions for a filename were offered. This update introduces more rigorous argument handling, most importantly restricting track/attachment completion to when both a mode and a file are specified.
124 lines
6.6 KiB
Fish
124 lines
6.6 KiB
Fish
# Sample output of 'mkvmerge -i file.mkv'
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#
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# File 'file.mkv': container: Matroska
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# Track ID 0: video (MPEG-4p10/AVC/h.264)
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# Track ID 1: audio (AAC)
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# Track ID 2: subtitles (SubStationAlpha)
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# Attachment ID 1: type 'application/x-truetype-font', size 53532 bytes, file name 'some_font.ttf'
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# Chapters: 7 entries
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function __fish_mkvextract_get_mode
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set -l cmd (commandline -opc)
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set -l skip_next 0
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for c in $cmd[2..-1]
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test $skip_next = 1; and set skip_next 0; and continue
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switch $c
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# All extraction modes
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case tracks tags attachments chapters cuesheet timecodes_v2 cues
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echo $c
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return 0
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# General flags that require an option - skip next argument
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case --ui-language --command-line-charset --output-charset -r --redirect-output --ui-language --debug --engage
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set skip_next 1
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# If any of these flags are present, all other args are ignored
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case -h --help -V --version --check-for-updates
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return 1
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end
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end
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return 1
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end
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function __fish_mkvextract_get_file
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set -l cmd (commandline -opc)
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# Any invocation with a file specified will already have >= 2 args
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if not set -q cmd[3]
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return 1
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end
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if not set -l mode (__fish_mkvextract_get_mode)
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return 1
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end
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set -l skip_next 0
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# Files strictly appear after the mode specifier
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set -l mode_found 0
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for c in $cmd[2..-1]
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test $skip_next = 1; and set skip_next 0; and continue
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switch $c
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# We've found the mode specifier, now look for the file
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case $mode
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set mode_found 1
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# Track-specific flags can appear between mode specifier and file
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case --ui-language --command-line-charset --output-charset -r --redirect-output --ui-language --debug --engage -c --blockadd --simple-language
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set skip_next 1
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# These flags now need to be explicitly skipped
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case -f --parse-fully -v --verbose -q --quiet '@*' --cuesheet --raw --fullraw -s --simple --gui-mode
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continue
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case -h --help -V --version --check-for-updates
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return 1
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case '*'
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if test $mode_found = 1
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echo -- $c
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return 0
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end
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end
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end
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return 1
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end
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function __fish_mkvextract_using_mode
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set -l mode (__fish_mkvextract_get_mode)
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and set -l file (__fish_mkvextract_get_file)
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and contains -- $mode $argv
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end
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function __fish_mkvextract_print_attachments
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if set -l matroska (__fish_mkvextract_get_file)
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if set -l info (mkvmerge -i $matroska)
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string match 'Attachment ID*' -- $info | string replace -r '.*?(\d+).*? type \'(.*?)\'.*?file name \'(.*?)\'' '$1:\t$3 ($2)'
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end
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end
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end
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function __fish_mkvextract_print_tracks
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if set -l matroska (__fish_mkvextract_get_file)
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if set -l info (mkvmerge -i $matroska)
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string match 'Track ID*' -- $info | string replace -r '.*?(\d+): (.*)' '$1:\t$2'
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end
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end
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end
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# simple options
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complete -f -c mkvextract -s V -l 'version' -d 'Show version information'
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complete -f -c mkvextract -s h -l 'help' -d 'Show help'
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complete -f -c mkvextract -l 'check-for-updates' -d 'Check online for updates'
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# extraction modes
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complete -f -c mkvextract -n 'not __fish_mkvextract_get_mode' -a 'tracks' -d 'Extract tracks to external files'
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complete -f -c mkvextract -n 'not __fish_mkvextract_get_mode' -a 'tags' -d 'Extract tags as XML'
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complete -f -c mkvextract -n 'not __fish_mkvextract_get_mode' -a 'attachments' -d 'Extract attachments'
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complete -f -c mkvextract -n 'not __fish_mkvextract_get_mode' -a 'chapters' -d 'Extract chapters as XML'
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complete -f -c mkvextract -n 'not __fish_mkvextract_get_mode' -a 'cuesheet' -d 'Extract chapters and tags as CUE sheet'
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complete -f -c mkvextract -n 'not __fish_mkvextract_get_mode' -a 'timecodes_v2' -d 'Extract timecodes of a track as timecode v2 file'
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complete -f -c mkvextract -n 'not __fish_mkvextract_get_mode' -a 'cues' -d 'Extract cue information as text file'
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# tracks/attachments when appropriate
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complete -f -c mkvextract -n '__fish_mkvextract_using_mode tracks timecodes_v2 cues' -a '(__fish_mkvextract_print_tracks)'
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complete -f -c mkvextract -n '__fish_mkvextract_using_mode attachments' -a '(__fish_mkvextract_print_attachments)'
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# these extraction modes have no parameters other than optional flags and the file
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complete -f -c mkvextract -n '__fish_mkvextract_using_mode tags chapters cuesheet'
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# general flags
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complete -c mkvextract -s f -l 'parse-fully' -d 'Parse the whole file instead of relying on the index'
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complete -c mkvextract -s v -l 'verbose' -d 'Increase verbosity'
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complete -c mkvextract -s q -l 'quiet' -d 'Suppress status output'
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complete -c mkvextract -r -l 'ui-language' -d 'Force a locale'
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complete -c mkvextract -r -l 'command-line-charset' -d 'Charset for strings on the command line'
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complete -c mkvextract -r -l 'output-charset' -d 'Outputs messages in specified charset'
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complete -c mkvextract -r -s r -l 'redirect-output' -d 'Redirect all messages into a file'
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complete -c mkvextract -r -l 'debug' -d 'Turn on debugging for a specific feature'
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complete -c mkvextract -r -l 'engage' -d 'Turn on an experimental feature'
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complete -c mkvextract -l 'gui-mode' -d 'Enable GUI mode'
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# mode-specific flags
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complete -f -c mkvextract -n '__fish_mkvextract_using_mode tracks' -r -s c -d 'Convert text subtitles to a charset'
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complete -f -c mkvextract -n '__fish_mkvextract_using_mode tracks' -l 'cuesheet' -d 'Also try to extract the CUE sheet'
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complete -f -c mkvextract -n '__fish_mkvextract_using_mode tracks' -r -l 'blockadd' -d 'Keep only the BlockAdditions up to the specified level'
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complete -f -c mkvextract -n '__fish_mkvextract_using_mode tracks' -l 'raw' -d 'Extract the data to a raw file'
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complete -f -c mkvextract -n '__fish_mkvextract_using_mode tracks' -l 'fullraw' -d 'Extract the data to a raw file including the CodecPrivate as header'
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complete -f -c mkvextract -n '__fish_mkvextract_using_mode chapters' -s s -l 'simple' -d 'Exports the chapter information in a simple format'
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complete -f -c mkvextract -n '__fish_mkvextract_using_mode chapters' -r -l 'simple-language' -d 'Uses the chapter names of the specified language'
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