commit 909015faca685dd1c402321b171305cc2215e1d8 Author: Martchus Date: Sat Aug 1 00:30:13 2015 +0200 first commit diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..15bcdf3 --- /dev/null +++ b/.gitignore @@ -0,0 +1,2 @@ +# Dolphin +.directory diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..23cb790 --- /dev/null +++ b/LICENSE @@ -0,0 +1,339 @@ + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc., + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. By contrast, the GNU General Public +License is intended to guarantee your freedom to share and change free +software--to make sure the software is free for all its users. This +General Public License applies to most of the Free Software +Foundation's software and to any other program whose authors commit to +using it. (Some other Free Software Foundation software is covered by +the GNU Lesser General Public License instead.) You can apply it to +your programs, too. + + When we speak of free software, we are referring to freedom, not +price. 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You may copy and distribute verbatim copies of the Program's +source code as you receive it, in any medium, provided that you +conspicuously and appropriately publish on each copy an appropriate +copyright notice and disclaimer of warranty; keep intact all the +notices that refer to this License and to the absence of any warranty; +and give any other recipients of the Program a copy of this License +along with the Program. + +You may charge a fee for the physical act of transferring a copy, and +you may at your option offer warranty protection in exchange for a fee. + + 2. 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It is safest +to attach them to the start of each source file to most effectively +convey the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + {description} + Copyright (C) {year} {fullname} + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License along + with this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + +Also add information on how to contact you by electronic and paper mail. + +If the program is interactive, make it output a short notice like this +when it starts in an interactive mode: + + Gnomovision version 69, Copyright (C) year name of author + Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, the commands you use may +be called something other than `show w' and `show c'; they could even be +mouse-clicks or menu items--whatever suits your program. + +You should also get your employer (if you work as a programmer) or your +school, if any, to sign a "copyright disclaimer" for the program, if +necessary. Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the program + `Gnomovision' (which makes passes at compilers) written by James Hacker. + + {signature of Ty Coon}, 1 April 1989 + Ty Coon, President of Vice + +This General Public License does not permit incorporating your program into +proprietary programs. If your program is a subroutine library, you may +consider it more useful to permit linking proprietary applications with the +library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. diff --git a/README.md b/README.md new file mode 100644 index 0000000..ede69dc --- /dev/null +++ b/README.md @@ -0,0 +1,46 @@ +# Diriterator +Runs a script for each file in a directory hierarchy using GNU parallel. +This is useful when converting a lot of media files. + +## Instructions +The script requires GNU parallel to be installed. + +Let's assume you have a directory tree like this + +``` +music_lib_mp3 + Artist 1 + Album 1 + Song 1.mp3 + Song 2.mp3 + ... + Album 2 + Song 1.mp3 + Song 2.mp3 + ... + ... +``` + +and want to convert all files to AAC in parallel and the converted +files should be placed in a similar directory tree: + +``` +music_lib_aac + Artist 1 + Album 1 + Song 1.m4a + Song 2.m4a + ... + Album 2 + Song 1.m4a + Song 2.m4a + ... + ... +``` + +Just run: +``` +diriterator --base-dir "./music_lib_aac" --target-dir "./music_lib_aac" --filter ".*\.(mp3$)" --cmd "mkdir -p \"\$ITERATOR_TARGET_DIR\" && ffmpeg -i \"\$ITERATOR_FULL_PATH\" -c:a libfdk_aac -vbr 4 \"\$ITERATOR_TARGET_DIR/\$ITERATOR_FILE_NAME_WITHOUT_EXTENSION.m4a\" +``` + +The repository PKGBUILDs (also on my GitHub page) contains files for building an Arch Linux package. diff --git a/diriterator-test.sh b/diriterator-test.sh new file mode 100755 index 0000000..c756ee8 --- /dev/null +++ b/diriterator-test.sh @@ -0,0 +1,12 @@ +#!/bin/sh +echo "Fullpath: $ITERATOR_FULL_PATH" +echo "Name: $ITERATOR_FILE_NAME" +echo "Name without extension: $ITERATOR_FILE_NAME_WITHOUT_EXTENSION" +echo "Current directory: $ITERATOR_CURRENT_DIR" +echo "Current relative directory: $ITERATOR_CURRENT_REL_DIR" +echo "Base directory: $ITERATOR_BASE_DIR" +echo "Target directory: $ITERATOR_TARGET_DIR" +echo "Arg 1: $1" +echo "Arg 2: $2" +echo "Arg 3: $3" +echo "-----------------------------" diff --git a/diriterator.sh b/diriterator.sh new file mode 100755 index 0000000..44b29db --- /dev/null +++ b/diriterator.sh @@ -0,0 +1,147 @@ +#!/bin/sh +# define queue +queue=() +function queueecho { + for item in "${queue[@]}" + do + echo $item + done +} +function queueexec { + queueecho | parallel "-j$parallelcount" --eta "eval {}" +} +function iteratedirs { + shopt -s nullglob # from doc: If set, Bash allows filename patterns which match no files to expand to a null string, rather than themselves. + for item in "$1/"* + do + if [ -d "$item" ]; then + if [[ $dept == none ]] || [ $currentlevel -lt $dept ]; then + iteratedirs "${item}" $(($2 + 1)) "${3}${item##*/}/" + fi + elif [ -f "$item" ]; then + if [[ $filter == "" ]] || [[ "$item" =~ $filter ]]; then + name=${item##*/} + namewithoutextension=${name%.*} + queue+=("ITERATOR_FULL_PATH=\"$item\" ITERATOR_FILE_NAME=\"$name\" ITERATOR_FILE_NAME_WITHOUT_EXTENSION=\"$namewithoutextension\" ITERATOR_CURRENT_DIR=\"$1\" ITERATOR_CURRENT_REL_DIR=\"$3\" ITERATOR_BASE_DIR=\"$basedir\" ITERATOR_TARGET_DIR=\"$targetdir/$3\" \"$cmd\" $append") + else + echo "${bold}${blue}Info:${normal} ${bold}Skipping »$item«.${normal}" + fi + else + echo "${bold}${yellow}Warning:${normal} ${bold}Item »$item« is neither a directory nor a file and will be skipped.${normal}" + fi + done +} +# determine sequences for formatted output +red=$(tput setaf 1) +green=$(tput setaf 2) +yellow=$(tput setaf 3) +blue=$(tput setaf 4) +bold=$(tput bold) +normal=$(tput sgr0) +# parse arguments +read= +# read arguments +argcount=0 +append= +basedir=./ +dept=none +cmd= +filter= +targetdir= +parallelcount=+0 +noconfirm=false +for arg in "$@" +do + if [[ "--base-dir" == $arg ]]; then + read=basedir + elif [[ "--dept" == $arg ]]; then + read=dept + elif [[ "--cmd" == $arg ]]; then + read=cmd + elif [[ "--filter" == $arg ]]; then + read=filter + elif [[ "--args" == $arg ]]; then + read=arguments + elif [[ "--parallel-count" == $arg ]]; then + read=parallelcount + elif [[ "--target-dir" == $arg ]]; then + read=target + elif [[ "--no-confirm" == $arg ]]; then + noconfirm=true + elif [[ "--help" == $arg ]]; then + echo "${bold}Runs a script for each file in a directory hierarchy using GNU parallel.${normal} +--base-dir the base directory (./ by default) +--target-dir the target directory (base directory by default) +--dept the maximal recursion dept (unlimited by default) +--cmd the command to be executed +--filter a regular expression to filter files, eg. ${bold}.*\.(mp4$)${normal} +--args the arguments to be passed to cmd +--no-confirm generated commands will be executed without prompt for confirmation +--parallel-count the maximal number of commands to be executed parallel + +${bold}The following environment variables will be set when running the script:${normal} +ITERATOR_FULL_PATH Path of the current file. +ITERATOR_FILE_NAME Full name of the current file. +ITERATOR_FILE_NAME_WITHOUT_EXTENSION Name of the current file without extension. +ITERATOR_CURRENT_DIR Path of the current directory. +ITERATOR_BASE_DIR Path of the base directory (specified using --base-dir). +ITERATOR_CURRENT_REL_DIR Path of the current directory (relative to the base directory). +ITERATOR_TARGET_DIR Path of the target directory for the current file (specified --target-dir + ITERATOR_CURRENT_REL_DIR). +" + exit 0 + else + if [[ $read == arguments ]]; then + append="$append \"$arg\"" + elif [[ $read == basedir ]]; then + basedir=$arg + elif [[ $read == dept ]]; then + if ! [[ $arg =~ ^-?[0-9]+$ ]]; then + echo "${bold}${red}Error:${normal} ${bold}specified dept »$arg« is not a number.${normal}" + exit 1 + fi + dept=$arg + elif [[ $read == cmd ]]; then + cmd=$arg + elif [[ $read == filter ]]; then + filter=$arg + elif [[ $read == parallelcount ]]; then + parallelcount=$arg + elif [[ $read == target ]]; then + targetdir=$arg + else + echo "${bold}${red}Error:${normal} ${bold}Invalid argument »$arg« specified.${normal}" + exit 1 + fi + if [[ $read != arguments ]]; then + read= + fi + fi +done +# validate specified arguments, use base directory as target directory if not specified +if [[ $targetdir == "" ]]; then + targetdir=$basedir +fi +if [[ $cmd == "" ]]; then + echo "${bold}${red}Error:${normal} ${bold}No command specified.${normal}" + exit 1 +fi +# start recursive iteration and exec queue +iteratedirs "$basedir" 0 +if [[ ${#queue[@]} -ge 1 ]]; then + echo "${bold}Generated queue${normal}" + queueecho + if [[ $noconfirm == true ]]; then + queueexec + else + while true; do + read -p "${bold}Do you want to execute the commands [y/n]?${normal} " yn + case $yn in + [Yy]* ) queueexec; break;; + [Nn]* ) exit;; + * ) echo "${bold}Please answer yes or no.${normal}";; + esac + done + fi +else + echo "${bold}${yellow}Warning:${normal} ${bold}Queue is empty.${normal}" +fi