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169 lines
8.1 KiB
169 lines
8.1 KiB
10 years ago
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#!/usr/bin/env bash
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# vim:noet:sts=4:ts=4:sw=4:tw=120
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#=======================================================================================================================
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# (c) 2014 Clemens Lang, neverpanic.de
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# See https://neverpanic.de/blog/2014/03/19/downloading-google-web-fonts-for-local-hosting/ for details.
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#
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# With modifications by
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# - Chris Jung, campino2k.de, and
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# - Robert, github.com/rotx.
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#
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# Changelog:
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# Version 1.1, 2014-06-21
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# - Remove colons and spaces from file names for Windows compatibility
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# - Add check for Bash version, 4.x is required
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# - Correctly handle fonts without a local PostScript name
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# - Change format('ttf') to format('truetype') in CSS output
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# - Add license header and comments
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# - Added sed extended regex flag detection
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# Version 1.0, 2014-03-19
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#
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# License:
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# Copyright (c) 2014, Clemens Lang
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
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# following conditions are met:
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#
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# 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following
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# disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
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# following disclaimer in the documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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# INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#=======================================================================================================================
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#=======================================================================================================================
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# Place this script in the directory where you want the font files to be downloaded and a font.css file using the fonts
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# to be created. Adjust the list of fonts in the $families variable below with the names of the Google fonts you want to
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# use. If you like, you can adjust the $css variable to write the generated CSS to a different file. Not that this file
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# will be created and overwritten if it exists.
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#=======================================================================================================================
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declare -a families
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families+=('Open+Sans:400')
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families+=('Open+Sans:600')
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# Adjust this is you want the created file to have a different name. Note that this file will be overwritten!
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css="font.css"
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url="http://fonts.googleapis.com/css?family=Open+Sans:400,600"
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#=======================================================================================================================
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# No user-serviceable parts below this line. If you just want to use this script, you can stop reading here.
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#
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# If you made modifications you'd like to see merged into this script, please mail me a patch to 'cl' at 'clang' dot
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# 'name' or leave a comment at https://neverpanic.de/blog/2014/03/19/downloading-google-web-fonts-for-local-hosting/.
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#=======================================================================================================================
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# Ensure the bash version is new enough. If it isn't error out with a helpful error message rather than crashing later.
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# if [ ${BASH_VERSINFO[0]} -lt 4 ]; then
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# echo "Error: This script needs Bash 4.x to run." >&2
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# exit 1
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# fi
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# Check whether sed is GNU or BSD sed, or rather, which parameter enables extended regex support. Note that GNU sed does
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# have -E as an undocumented compatibility option on some systems.
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if [ "$(echo "test" | sed -E 's/([st]+)$/xx\1/' 2>/dev/null)" == "texxst" ]; then
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ESED="sed -E"
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elif [ "$(echo "test" | sed -r 's/([st]+)$/xx\1/' 2>/dev/null)" == "texxst" ]; then
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ESED="sed -r"
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else
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echo "Error: $(which sed) seems to lack extended regex support with -E or -r." >&2
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exit 2
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fi
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# Store the useragents we're going to use to trick Google's servers into serving us the correct CSS file.
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declare -A useragent
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useragent[eot]='Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)'
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useragent[woff]='Mozilla/5.0 (Windows NT 6.1; WOW64; rv:27.0) Gecko/20100101 Firefox/27.0'
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useragent[svg]='Mozilla/4.0 (iPad; CPU OS 4_0_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/4.1 Mobile/9A405 Safari/7534.48.3'
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useragent[ttf]='Mozilla/5.0 (Windows NT 6.1) AppleWebKit/534.54.16 (KHTML, like Gecko) Version/5.1.4 Safari/534.54.16'
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# Clear the output file
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>"$css"
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# Loop over the fonts, and download them one-by-one
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for family in "${families[@]}"; do
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echo -n "Downloading ${family}... "
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printf "@font-face {\n" >>"$css"
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# Extract name, Windows-safe filename, font style and font weight from the font family name
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fontname=$(echo "$family" | awk -F : '{print $1}')
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fontnameescaped=$(echo "$family" | $ESED 's/( |:)/_/g')
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fontstyle=$(echo "$family" | awk -F : '{print $2}')
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fontweight=$(echo "$fontstyle" | $ESED 's/italic$//g')
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printf "\tfont-family: '%s';\n" "$fontname" >>"$css"
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# $fontstyle could be bolditalic, bold, italic, normal, or nothing.
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case "$fontstyle" in
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*italic)
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printf "\tfont-style: italic;\n" >>"$css"
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;;
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*)
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printf "\tfont-style: normal;\n" >>"$css"
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;;
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esac
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# Either bold, a number, or empty. If empty, default to "normal".
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printf "\tfont-weight: %s;\n" "${fontweight:-normal}" >>"$css"
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printf "\tsrc:\n" >>"$css"
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# Determine the local names for the given fonts so we can use a locally-installed font if available.
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local_name=$(curl -sf --get --data-urlencode "family=$family" "$url" | grep -E "src:" | $ESED "s/^.*src: local\\('([^']+)'\\),.*$/\\1/g")
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local_postscript_name=$(curl -sf --get --data-urlencode "family=$family" "$url" | grep -E "src:" | $ESED "s/^.*, local\\('([^']+)'\\),.*$/\\1/g")
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# Some fonts don't have a local PostScript name.
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printf "\t\tlocal('%s'),\n" "$local_name" >>"$css"
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if [ -n "$local_postscript_name" ]; then
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printf "\t\tlocal('%s'),\n" "$local_postscript_name" >>"$css"
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fi
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# For each font format, download the font file and print the corresponding CSS statements.
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for uakey in eot woff ttf svg; do
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echo -n "$uakey "
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# Download Google's CSS and throw some regex at it to find the font's URL
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if [ "$uakey" != "svg" ]; then
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pattern="http:\\/\\/[^\\)]+\\.$uakey"
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else
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pattern="http:\\/\\/[^\\)]+"
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fi
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file=$(curl -sf -A "${useragent[$uakey]}" --get --data-urlencode "family=$family" "$url" | grep -Eo "$pattern" | sort -u)
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printf "\t\t/* from %s */\n" "$file" >>"$css"
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if [ "$uakey" == "svg" ]; then
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# SVG fonts need the font after a hash symbol, so extract the correct name from Google's CSS
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svgname=$(echo "$file" | $ESED 's/^[^#]+#(.*)$/\1/g')
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fi
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# Actually download the font file
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curl -sfL "$file" -o "${fontnameescaped}.$uakey"
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# Generate the CSS statements required to include the downloaded file.
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case "$uakey" in
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eot)
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printf "\t\turl('%s?#iefix') format('embedded-opentype'),\n" "${fontnameescaped}.$uakey" >>"$css"
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;;
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woff)
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printf "\t\turl('%s') format('woff'),\n" "${fontnameescaped}.$uakey" >>"$css"
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;;
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ttf)
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printf "\t\turl('%s') format('truetype'),\n" "${fontnameescaped}.$uakey" >>"$css"
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;;
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svg)
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printf "\t\turl('%s#%s') format('svg');\n" "${fontnameescaped}.${uakey}" "$svgname" >>"$css"
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;;
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esac
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done
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printf "}\n" >>"$css"
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echo
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done
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