Created
February 9, 2016 18:46
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Parse YAML from bash with sed and awk.
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| development: | |
| adapter: mysql2 | |
| encoding: utf8 | |
| database: my_database | |
| username: root | |
| password: | |
| apt: | |
| - somepackage | |
| - anotherpackage |
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| development_adapter=("mysql2") | |
| development_encoding=("utf8") | |
| development_database=("my_database") | |
| development_username=("root") | |
| development_apt+=("somepackage") | |
| development_apt+=("anotherpackage") |
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| #!/usr/bin/env bash | |
| # | |
| # vim: set ft=sh: | |
| # | |
| # Based on https://gist.github.com/pkuczynski/8665367 | |
| parse_yaml() { | |
| local prefix=$2 | |
| local s | |
| local w | |
| local fs | |
| s='[[:space:]]*' | |
| w='[a-zA-Z0-9_]*' | |
| fs="$(echo @|tr @ '\034')" | |
| sed -ne "s|^\($s\)\($w\)$s:$s\"\(.*\)\"$s\$|\1$fs\2$fs\3|p" \ | |
| -e "s|^\($s\)\($w\)$s[:-]$s\(.*\)$s\$|\1$fs\2$fs\3|p" "$1" | | |
| awk -F"$fs" '{ | |
| indent = length($1)/2; | |
| vname[indent] = $2; | |
| for (i in vname) {if (i > indent) {delete vname[i]}} | |
| if (length($3) > 0) { | |
| vn=""; for (i=0; i<indent; i++) {vn=(vn)(vname[i])("_")} | |
| printf("%s%s%s=(\"%s\")\n", "'"$prefix"'",vn, $2, $3); | |
| } | |
| }' | sed 's/_=/+=/g' | |
| } | |
| parse_yaml config.yml |
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