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Jaidyn Ann
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================================================================================
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SPACETEMPLATE
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================================================================================
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Spacetemplate lets you recursively apply a directory "template" to another
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directory (on Haiku).
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For example, let's say you are very particular in how your "Music" folder
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windows look in Tracker― you need the "Music" folder to be a particular size, at
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a particular spot, and you want all artists to be in another spot, and all
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albums in another spot.
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You could manually move and resize every folder in Music, but that's annoying.
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Or you could write a script to apply a given template to all Music subdirectories.
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… That's what this is. The template script.
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========================================
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USAGE
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========================================
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$ spacetemplate templatefolder folder
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There are no arguments― it'll just apply the template folder to the folder.
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========================================
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TEMPLATES
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========================================
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A template folder hierarchy should look like the target folder's.
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It'll copy the attributes from the template folder to the corresponding target,
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for example:
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template/Apple/ --> target/Apple/
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template/Apple/Dad --> target/Apple/Dad/
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template/Pear/Mom --> target/Pear/Mom/
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If a folder is in the target but doesn't have a match in the template, it'll
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be ignored.
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There is a fallback: _default_
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_default_ will match any folder in matches to its parent folder, as long
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as there isn't a direct match.
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So:
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template/_default_/ --> target/Apple/
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template/_default_/Dad/ --> target/Apple/Dad/
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template/_default_/_default_/ --> target/Pear/Mom/
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Keep in mind, though, that if there is a direct template for a folder, it won't
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match a _default_ in the same parent directory. Default is for any folder there
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is no direct match for.
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template/_default_/ --> target/Pear/
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template/Apple/ --> target/Apple/
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Since there is a direct match to Apple, template/_default_/ won't be applied
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to Apple. Only template/Apple/ will.
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There is a wildcard, too: _all_
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_all_ will match all (surprise) folders in its parent directory, even if they
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have direct matches. It's basically _default_ applied to everything.
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template/_default_/ --> target/Pear/
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template/_all_/ --> target/Pear/
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template/Apple/ --> target/Apple/
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template/_all_/ --> target/Apple/
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_default_ applies to Pear, but not Apple― _all_ applies to both Pear and Apple.
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One more bit: _default_ and _all_ matches won't copy over the position of the
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folder (trk/pinfo_le). Since if it did that, you'd end up with a bunch of
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folders piled on top of each other. What a hassle.
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Direct matches will copy location over, though.
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The order of application is:
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# _all_
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# _default_
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# Direct
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If there is a direct match, it will apply after _all_. If there is a _default_,
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it will apply before _all_.
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========================================
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EXAMPLE
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========================================
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Sooo back to the music organization problem…
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Here's an example of how you'd solve that.
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template/_default_/ --> Music/*/
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template/_default_/_default_/ --> Music/*/*/
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Kinda anti-climactic, for all that build-up…
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Alright, let's make it more interesting.
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"Rhapsody of Fire" is a band that's had several incarnations, so it would make
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sense if you grouped all the Rhapsody derivatives into a single directory, as
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an exception to the above rules.
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template/Rhapsody/_default_/ --> Music/Rhapsody/*/
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template/Rhapsody/_default_/_default_/ --> Music/Rhapsody/*/*/
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Still not very interesting. Dang. Well, you get the point lol
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========================================
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BORING STUFF
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========================================
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MIT License
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Jaidyn Ann, <jadedctrl@teknik.io>
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@ -0,0 +1,112 @@
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#!/bin/sh
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# --------------------------------------
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# name: spacetemplate
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# main: <jadedctrl@teknik.io>
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# lisc: MIT
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# date: 2021
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# --------------------------------------
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# Recursively apply a template directory to a target directory.
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function apply_template {
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local template="$1"
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local target="$2"
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echo "$target…"
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copy_template "$template" "$target"
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apply_specific all "$template" "$target"
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for file in "$template"/*; do
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local basename="$(basename "$file")"
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if test -d "${target}/$basename" \
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-a ! "$basename" = '*'
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then
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if test -h "$file"; then file="$(readlink "$file")"; fi
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apply_template "$file" "${target}/$basename"
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fi
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done
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apply_specific default "$template" "$target"
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}
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# Check if a specific template folder (_all_ or _default_) exists for given
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# template and target, and apply where necessary.
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function apply_specific {
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local type="$1"
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local template="$2"
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local target="$3"
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if test -e "${template}/_${type}_"; then
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local type_template="${template}/_${type}_"
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if test -h "$type_template"; then
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type_template="$(readlink "$type_template")"
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fi
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for file in "$target"/*; do
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local basename="$(basename "$file")"
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local apply=0
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if test "$basename" = '*'; then break; fi
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if test "$type" = "all"; then apply=1; fi
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if test ! -d "${template}/$basename"; then apply=1; fi
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if test "$apply" -eq 1; then
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apply_template "$type_template" "$file" 0
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fi
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done
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fi
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}
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# Actually copy over attributes from template file to target file
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function copy_template {
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local template="$1"
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local target="$2"
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if test ! -d "$target"; then return; fi
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if test -h "$template"; then template="$(readlink "$template")"; fi
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if test ! -d "$template"; then return; fi
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catattr -r _trk/pinfo_le "$target" 2> /dev/null \
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> "$TEMP"
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copyattr "$template" "$target"
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addattr -f "$TEMP" -t raw _trk/pinfo_le "$target" 2> /dev/null
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echo "" \
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> "$TEMP"
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}
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function help {
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echo "usage: $(basename $0) [-h] templatedir directory"
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echo
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echo \
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"Makes a target directory have attributes matching the templatedir, according
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to certain rules. Useful if you're particular about where folders' windows
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should be.
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See the README for information on the structure of template dirs."
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exit 1
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}
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while getopts ":h" arg; do
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case $arg in
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h) help;;
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esac
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done
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shift $(($OPTIND - 1))
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TEMPLATE=$1
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TARGET=$2
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if test -z "$TEMPLATE" -o -z "$TARGET"; then help; fi
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if test ! -e "$TEMPLATE" -o ! -e "$TARGET"; then help; fi
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TEMP="$(mktemp)"
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apply_template "$TEMPLATE" "$TARGET"
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rm "$TEMP"
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