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Refactor the custom scripts
A lot of them are reaching to be bigger so I've refactored them similarly to C codebases with the `main()` entrypoint. Apparently, this is how bigger shell scripts are written like Neofetch, pfetch, and some Kubernetes helper scripts.
This commit is contained in:
Gabriel Arazas
parent
1d6065d308
commit
f96888447d
171
bin/bangs
171
bin/bangs
@ -38,8 +38,7 @@ HELP
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# Simply prints the given string into percent-encoded equivalent.
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#
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# > urlencode "Hello world"
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# Hello%20world
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# `urlencode "Hello world"` will give "Hello%20world"
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#
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# Stolen from https://gist.github.com/cdown/1163649 and https://gist.github.com/cdown/1163649#gistcomment-1256298.
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# Just ported it in Oil script.
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@ -65,100 +64,100 @@ proc warnf(format, @msg) {
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# The entry point of this program.
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proc main {
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# Config-related variables.
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# For now, there is no system-related config.
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# This is primarily a user script, after all. :)
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const config_dir = "${XDG_CONFIG_HOME:-"$HOME/.config"}/bangs"
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const config_file = "${config_dir}/config.json"
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# Config-related variables.
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# For now, there is no system-related config.
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# This is primarily a user script, after all. :)
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const config_dir = "${XDG_CONFIG_HOME:-"$HOME/.config"}/bangs"
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const config_file = "${config_dir}/config.json"
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# Note you can configure these variables through the respective environment variables.
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const bangs_prefix = "${BANGS_PREFIX:-~}"
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const bangs_placeholder = "${BANGS_PLACEHOLDER:-{{{s}}}}"
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# Note you can configure these variables through the respective environment variables.
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const bangs_prefix = "${BANGS_PREFIX:-~}"
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const bangs_placeholder = "${BANGS_PLACEHOLDER:-{{{s}}}}"
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# These are the default bangs available.
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# Bangs are any keys that shouldn't have whitespace characters.
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# We'll use this in case there is no user configuration.
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#
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# We also made the default config to be more flexible with the placeholder.
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const default_config = {
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'aw': {
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'name': 'Arch Wiki',
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'url': 'https://wiki.archlinux.org/index.php?title=Special%3ASearch&search=' + bangs_placeholder
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},
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'gh': {
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'name': 'GitHub',
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'url': 'https://github.com/search?utf8=%E2%9C%93&q=' + bangs_placeholder
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},
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'g': {
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'name': 'Google',
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'url': 'https://www.google.com/search?q=' + bangs_placeholder
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},
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'so': {
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'name': 'Stack Overflow',
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'url': 'http://stackoverflow.com/search?q=' + bangs_placeholder
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},
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'w': {
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'name': 'Wikipedia',
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'url': 'https://en.wikipedia.org/wiki/Special:Search?search=' + bangs_placeholder
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}
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# These are the default bangs available.
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# Bangs are any keys that shouldn't have whitespace characters.
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# We'll use this in case there is no user configuration.
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#
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# We also made the default config to be more flexible with the placeholder.
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const default_config = {
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'aw': {
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'name': 'Arch Wiki',
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'url': 'https://wiki.archlinux.org/index.php?title=Special%3ASearch&search=' + bangs_placeholder
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},
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'gh': {
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'name': 'GitHub',
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'url': 'https://github.com/search?utf8=%E2%9C%93&q=' + bangs_placeholder
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},
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'g': {
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'name': 'Google',
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'url': 'https://www.google.com/search?q=' + bangs_placeholder
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},
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'so': {
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'name': 'Stack Overflow',
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'url': 'http://stackoverflow.com/search?q=' + bangs_placeholder
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},
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'w': {
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'name': 'Wikipedia',
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'url': 'https://en.wikipedia.org/wiki/Special:Search?search=' + bangs_placeholder
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}
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}
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# Setting up some variables.
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const bangs_format = / %start $bangs_prefix !space+ %end /
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const valid_bangs = %()
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const search_query = %()
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# Config file detection.
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# Otherwise, we'll just use the default config.
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if test -f $config_file {
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json read :bangs < $config_file
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} else {
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var bangs = default_config
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}
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# Show the usage when no arguments was given like any sane program.
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if (len(ARGV) == 0) {
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usage
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exit 0
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}
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# Filter out the bangs from the search query.
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# The bangs are just words prefixed with a certain sequence of characters.
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# We put both bangs and the search query in separate arrays for easier processing.
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# E.g., in the search query `hello ~ddg world ~g`, `~ddg~ and `~g` are the bangs.
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for i in @ARGV {
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# If the argument is not a bang, append in the search query queue.
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write -- $i | rg --quiet $bangs_format || {
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append :search_query $i
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continue
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}
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# Setting up some variables.
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const bangs_format = / %start $bangs_prefix !space+ %end /
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const valid_bangs = %()
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const search_query = %()
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# Config file detection.
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# Otherwise, we'll just use the default config.
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if test -f $config_file {
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json read :bangs < $config_file
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# Otherwise, put it in the bangs array.
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# Keep in mind, we do throw out bangs that are not in the bangs database.
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var bang = $(write -- $i | sed --regexp-extended --expression "s/^${bangs_prefix}//")
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if (bang in bangs) {
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append :valid_bangs $bang
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warnf "%s will be used to search." $bang
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} else {
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var bangs = default_config
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warnf "%s is not found in the database." $bang
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}
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}
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# Show the usage when no arguments was given like any sane program.
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if (len(ARGV) == 0) {
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usage
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exit 0
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}
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# Encode the query for a consistent formatting.
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# Even though this script is in Oil where it has less problems with splitting strings, we still might want to encode the query for a good measure.
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var query = join(search_query, " ")
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var encoded_query = $(urlencode $query)
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# Filter out the bangs from the search query.
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# The bangs are just words prefixed with a certain sequence of characters.
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# We put both bangs and the search query in separate arrays for easier processing.
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# E.g., in the search query `hello ~ddg world ~g`, `~ddg~ and `~g` are the bangs.
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for i in @ARGV {
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# If the argument is not a bang, append in the search query queue.
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write -- $i | rg --quiet $bangs_format || {
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append :search_query $i
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continue
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}
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warnf "Search query is '%s'" $query
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warnf "Encoded form is '%s'" $encoded_query
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# Otherwise, put it in the bangs array.
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# Keep in mind, we do throw out bangs that are not in the bangs database.
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var bang = $(write -- $i | sed --regexp-extended --expression "s/^${bangs_prefix}//")
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if (bang in bangs) {
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append :valid_bangs $bang
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warnf "%s will be used to search." $bang
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} else {
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warnf "%s is not found in the database." $bang
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}
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}
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# Search the query with the given bangs.
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for bang in @valid_bangs {
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var metadata = bangs[bang]
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var url = $(write -- ${metadata['url']} | sed --expression "s/${bangs_placeholder}/${encoded_query}/")
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# Encode the query for a consistent formatting.
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# Even though this script is in Oil where it has less problems with splitting strings, we still might want to encode the query for a good measure.
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var query = join(search_query, " ")
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var encoded_query = $(urlencode $query)
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warnf "Search query is '%s'" $query
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warnf "Encoded form is '%s'" $encoded_query
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# Search the query with the given bangs.
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for bang in @valid_bangs {
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var metadata = bangs[bang]
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var url = $(write -- ${metadata['url']} | sed --expression "s/${bangs_placeholder}/${encoded_query}/")
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handlr open $url
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}
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handlr open $url
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}
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}
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main @ARGV
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@ -23,11 +23,16 @@ var channel_id_eggex = / 'https://www.youtube.com/channel/' (word) /
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var NEWPIPE_DB = "newpipe.db"
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var TEMP_FOLDER_NAME = "newpipe"
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var NEWPIPE_DB_QUERY = "SELECT name, url, service_id, group_concat(tag, ',') AS tags FROM (SELECT subscriptions.name, subscriptions.url, subscriptions.service_id, '/' || feed_group.name AS tag
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FROM subscriptions
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LEFT JOIN feed_group_subscription_join AS subs_join
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LEFT JOIN feed_group
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ON subs_join.subscription_id = subscriptions.uid AND feed_group.uid = subs_join.group_id) GROUP BY name ORDER BY name COLLATE NOCASE;"
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# The SQL query to get the required metadata.
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var NEWPIPE_DB_QUERY = "
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SELECT name, url, service_id, group_concat(tag, ',') AS tags FROM (
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SELECT subscriptions.name, subscriptions.url, subscriptions.service_id, '/' || feed_group.name AS tag
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FROM subscriptions
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LEFT JOIN feed_group_subscription_join AS subs_join
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LEFT JOIN feed_group
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ON subs_join.subscription_id = subscriptions.uid AND feed_group.uid = subs_join.group_id
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) GROUP BY name ORDER BY name COLLATE NOCASE;"
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# Print the beginning of the template.
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cat <<OPML
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@ -56,13 +61,24 @@ proc print-outline(title, xml_url, html_url, tags = "") {
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# Print the channels in the OPML body.
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# This only occurs if the given file does have a Newpipe database.
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if unzip -l $FILENAME | rg --quiet $NEWPIPE_DB {
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# Make the temporary directory (preferably on the current directory to make cleanup easier).
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mkdir $TEMP_FOLDER_NAME && unzip -q -u $FILENAME -d $TEMP_FOLDER_NAME
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file --mime "${TEMP_FOLDER_NAME}/${NEWPIPE_DB}" | rg --quiet "application/x-sqlite3" || exit 1
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# Setting up some automatic cleanup upon exit.
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trap "rm --recursive $TEMP_FOLDER_NAME" EXIT
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# Quickly check if a SQLite database is in the Newpipe database folder.
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file --mime "${TEMP_FOLDER_NAME}/${NEWPIPE_DB}" | rg --quiet "application/x-sqlite3" || exit 1
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# Extract the data from the database and process them individually.
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# Note that we formatted the data in CSV to be in one line per object since as of version 0.8.11, Oil has some problems when taking fully nested data from external commands (not yet completely verified).
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# We have to rewrite this part once Oil fixes the issue with nested objects.
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sqlite3 "${TEMP_FOLDER_NAME}/${NEWPIPE_DB}" "${NEWPIPE_DB_QUERY}" --csv --header \
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| dasel select --parser csv --multiple --selector '.[*]' --compact --write json \
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# We have separate each channel as a JSON object per line.
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echo $channel | json read :channel
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setvar name = channel['name']
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setvar url = channel['url']
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setvar service_id = channel['service_id']
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260
bin/split-album
260
bin/split-album
@ -1,5 +1,5 @@
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#! /usr/bin/env nix-shell
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#! nix-shell -i oil -p coreutils moreutils ffmpeg gnused ripgrep
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#! nix-shell -i oil -p coreutils moreutils ffmpeg gnused ripgrep file
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shopt --set strict:all
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@ -85,68 +85,6 @@ There will be a folder created with the safe name of the album (in kebab-case) c
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The original file will be kept, do what you want with it.
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"
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const EXTENSION = ${EXTENSION:-"opus"}
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var audio_file = ''
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var timestamp_file = ''
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var album = ''
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var author = ''
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var pub_date = ''
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var prints_json = false
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var strict_mode = false
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var skip = false
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while test $len(ARGV) -gt 0 {
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case $[ARGV[0]] {
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-h|--help)
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write -- $show_help
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exit
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;;
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--tutorial)
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write -- $show_descriptive_help
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exit
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;;
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--audio-file)
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setvar audio_file = ARGV[1]
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shift 2
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;;
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--timestamp-file)
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setvar timestamp_file = ARGV[1]
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shift 2
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;;
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-a|--author)
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setvar author = ARGV[1]
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shift 2
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;;
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-d|--date)
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setvar pub_date = ARGV[1]
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shift 2
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;;
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-t|--title)
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setvar album = ARGV[1]
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shift 2
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;;
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--strict)
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setvar strict_mode = true
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shift
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;;
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--skip)
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setvar skip = true
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shift
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;;
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--json)
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setvar prints_json = true
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shift
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;;
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*)
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setvar audio_file = ARGV[0]
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setvar timestamp_file = ARGV[1]
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shift 2
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;;
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}
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}
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proc warnf(msg, @args) {
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>&2 printf "${msg}\\n" @args
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@ -167,62 +105,149 @@ proc kebab-case(word) {
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write -- $word | sed --regexp-extended --expression 's/./\L&/g' --expression 's/\s+/-/g' --expression 's/[^a-z0-9-]//g' --expression 's/^-+|-+$//g' --expression 's/-+/-/g'
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}
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test -f $audio_file || errorf '%s is not a regular file' $audio_file
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test -f $timestamp_file || errorf '%s is not a regular file' $timestamp_file
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proc main {
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# This could be configured by setting the 'EXTENSION' environment variable.
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const EXTENSION = ${EXTENSION:-"opus"}
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test $album || prompt "What is the title of the album?" :album
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test $author || prompt "Who is the author of the album?" :author
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test $pub_date || prompt "When is the album published?" :pub_date
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# Set up the variables.
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var audio_file = ''
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var timestamp_file = ''
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const output_data = {}
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setvar output_data['file'] = $audio_file
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setvar output_data['chapters'] = []
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setvar output_data['album'] = $album
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setvar output_data['author'] = $author
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setvar output_data['date'] = $pub_date
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setvar output_data['extension'] = $EXTENSION
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var album = ''
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var author = ''
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var pub_date = ''
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const timestamp_regex = / %start digit{2,} ':' digit{2} ':' digit{2} <'.' digit+>? %end /
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var has_error = false
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var prints_json = false
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var strict_mode = false
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var skip = false
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# Deserialize the given input into the chapters data.
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case $(file --mime-type --brief $timestamp_file) {
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# Parse the arguments.
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while test $len(ARGV) -gt 0 {
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case $[ARGV[0]] {
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-h|--help)
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write -- $show_help
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exit
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;;
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--tutorial)
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write -- $show_descriptive_help
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exit
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;;
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--audio-file)
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setvar audio_file = ARGV[1]
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shift 2
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;;
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--timestamp-file)
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setvar timestamp_file = ARGV[1]
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shift 2
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;;
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-a|--author)
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setvar author = ARGV[1]
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shift 2
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;;
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-d|--date)
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setvar pub_date = ARGV[1]
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shift 2
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;;
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-t|--title)
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setvar album = ARGV[1]
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shift 2
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;;
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--strict)
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setvar strict_mode = true
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shift
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;;
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--skip)
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setvar skip = true
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shift
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;;
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--json)
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setvar prints_json = true
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shift
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;;
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*)
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setvar audio_file = ARGV[0]
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setvar timestamp_file = ARGV[1]
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shift 2
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;;
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}
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}
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# Check the files if it is valid.
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test -f $audio_file || errorf '%s is not a regular file' $audio_file
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test -f $timestamp_file || errorf '%s is not a regular file' $timestamp_file
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# Prompt for the missing values if not passed from the command line.
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test $album || prompt "What is the title of the album?" :album
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test $author || prompt "Who is the author of the album?" :author
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test $pub_date || prompt "When is the album published?" :pub_date
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# Populate the output data.
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# This is going to be used throughout the processing.
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# Additionally, the object will be printed when `--json` flag is passed.
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const output_data = {}
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setvar output_data['file'] = $audio_file
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setvar output_data['chapters'] = []
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setvar output_data['album'] = $album
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setvar output_data['author'] = $author
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setvar output_data['date'] = $pub_date
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setvar output_data['extension'] = $EXTENSION
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# The following variable stores an eggex, a simplified notation for regular expressions.
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# Pretty nice to use especially that literals are quoted and classes are not.
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const timestamp_regex = / %start digit{2,} ':' digit{2} ':' digit{2} <'.' digit+>? %end /
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# We'll keep track whether the pipeline has encountered an error.
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# If it has, the script will exit throughout various points of the process.
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var has_error = false
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# Deserialize the given input into the chapters data.
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# This script accept several formats from a JSON file to a plain-text file derived from Luke Smith's 'booksplit' script.
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case $(file --mime-type --brief $timestamp_file) {
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"application/json")
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json read :chapters < $timestamp_file
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setvar output_data['chapters'] = chapters
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;;
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json read :chapters < $timestamp_file
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setvar output_data['chapters'] = chapters
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;;
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|
||||
# Also cleans up the timestamp file with comments (i.e., lines starting with '#') and empty lines allowing for more commenting options.
|
||||
# I just want to improve the timestamp format a little bit.
|
||||
# The text file is formatted quite similarly to the required format from the booksplit script.
|
||||
# I improved some things in the format such as allowing comments (i.e., lines starting with '#') and empty lines allowing for cleaner input.
|
||||
"text/plain")
|
||||
sed --regexp-extended --expression '/^\s*$/d' --expression '/^#/d' $timestamp_file | while read --line {
|
||||
var chapter = {}
|
||||
setvar chapter['title'] = $(write -- $_line | cut -d' ' -f2-)
|
||||
setvar chapter['timestamp'] = $(write -- $_line | cut -d' ' -f1)
|
||||
sed --regexp-extended --expression '/^\s*$/d' --expression '/^#/d' $timestamp_file | while read --line {
|
||||
# We'll build the chapter data to be added later to the output data.
|
||||
var chapter = {}
|
||||
setvar chapter['title'] = $(write -- $_line | cut -d' ' -f2-)
|
||||
setvar chapter['timestamp'] = $(write -- $_line | cut -d' ' -f1)
|
||||
|
||||
write -- ${chapter['timestamp']} | rg --quiet $timestamp_regex || {
|
||||
warnf "'%s' %s is not a valid timestamp" ${chapter['timestamp']} ${chapter['title']}
|
||||
setvar has_error = true
|
||||
continue
|
||||
}
|
||||
|
||||
_ output_data['chapters'].append(chapter)
|
||||
# Mark the input to be erreneous if the timestamp format is not valid.
|
||||
# This will cause the script to exit in the next part of the process.
|
||||
# We won't be exiting immediately to give all possible errors.
|
||||
write -- ${chapter['timestamp']} | rg --quiet $timestamp_regex || {
|
||||
warnf "'%s' %s is not a valid timestamp" ${chapter['timestamp']} ${chapter['title']}
|
||||
setvar has_error = true
|
||||
continue
|
||||
}
|
||||
;;
|
||||
}
|
||||
|
||||
if (strict_mode and has_error) { exit 1 }
|
||||
_ output_data['chapters'].append(chapter)
|
||||
}
|
||||
;;
|
||||
}
|
||||
|
||||
const title_slug = $(kebab-case $album)
|
||||
setvar output_data['directory'] = $(realpath --canonicalize-missing $title_slug)
|
||||
mkdir -p $title_slug
|
||||
# Exit if the script is set as strict and has erreneous input.
|
||||
# If the user cares about the input, they have to set it to strict mode.
|
||||
if (strict_mode and has_error) { exit 1 }
|
||||
|
||||
# Rather than sequentially segmenting the audio, we'll extract the starting and ending timestamps of each segment then feed it to a job queue that can execute jobs in parallel.
|
||||
# Take note we don't have the ending timestamp of each segment so we need a way to look back into items.
|
||||
const chapter_len = len(output_data['chapters'])
|
||||
var job_queue = %()
|
||||
# Set parts of the output data and prepare for the splitting process.
|
||||
const title_slug = $(kebab-case $album)
|
||||
setvar output_data['directory'] = $(realpath --canonicalize-missing $title_slug)
|
||||
mkdir -p $title_slug
|
||||
|
||||
for index in @(seq $[chapter_len]) {
|
||||
# Rather than sequentially segmenting the audio, we'll extract the starting and ending timestamps of each segment then feed it to a job queue that can execute jobs in parallel.
|
||||
# Take note we don't have the ending timestamp of each segment so we need a way to look back into items.
|
||||
const chapter_len = len(output_data['chapters'])
|
||||
var job_queue = %()
|
||||
|
||||
# Iterate through the chapters and populate the job queue.
|
||||
# We'll also fill up the rest of the chapter-related data into the output data.
|
||||
for index in @(seq $[chapter_len]) {
|
||||
var index = Int(index)
|
||||
var chapter = output_data['chapters'][index - 1]
|
||||
var start = chapter['timestamp']
|
||||
@ -230,17 +255,24 @@ for index in @(seq $[chapter_len]) {
|
||||
var filename = $(printf "%.2d-%s.%s" $index $(kebab-case ${chapter['title']}) $EXTENSION)
|
||||
setvar output_data['chapters'][index - 1]['file'] = filename
|
||||
|
||||
# Check for incorrect timestamp order.
|
||||
# Check for incorrect timestamp order and set the pipeline as erreneous if it is.
|
||||
# We can't let the splitting process proceed since it will surely make problematic output.
|
||||
if (start > end and end is not null) {
|
||||
warnf '%s (start) is ahead compared to %s (end)' $start $end
|
||||
setvar has_error = true
|
||||
warnf '%s (start) is ahead compared to %s (end)' $start $end
|
||||
setvar has_error = true
|
||||
}
|
||||
|
||||
append :job_queue ">&2 printf '[%d/%d] %s\\n' $[index] $[chapter_len] \"$[output_data['chapters'][index - 1]['title']]\"; ffmpeg -loglevel quiet -nostdin -i '${audio_file}' -ss ${start} $['-to ' + end if index != chapter_len else ''] ${title_slug}/${filename}"
|
||||
}
|
||||
|
||||
# Exit the process if an error detected.
|
||||
if (has_error) { exit 1 }
|
||||
|
||||
# Start the splitting process if the `--skip` is absent.
|
||||
if (not skip) { parallel -- @job_queue }
|
||||
|
||||
# Print the output data as JSON if the `--json` flag is passed.
|
||||
if (prints_json) { json write :output_data }
|
||||
}
|
||||
|
||||
if (has_error) { exit 1 }
|
||||
|
||||
if (not skip) { parallel -- @job_queue }
|
||||
if (prints_json) { json write :output_data }
|
||||
|
||||
main @ARGV
|
||||
|
||||
Loading…
Reference in New Issue
Block a user