mirror of
https://github.com/aphrody-labs/msys2-devtools.git
synced 2026-10-14 04:19:12 +00:00
Christoph Reiter
5be6f1b262
Bash variables starting with msys2_ or mingw_ in the PKGBUILD will now be included in the srcinfo cache under "extra". This supports both strings and arrays of strings.
85 lines
2.1 KiB
Bash
85 lines
2.1 KiB
Bash
#!/bin/bash
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# Sources a PKGBUILD and outputs a json representation of all variables in it.
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# Usage: ./src2json.sh PKGBUILD [prefix1 prefix2...]
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# Example Output:
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# {
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# "prefix1_name1": "value1",
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# "prefix2_name2": ["element1", "element2", ...]
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# }
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set -e
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escape_json_string() {
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local json_string
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json_string="${1//\\/\\\\}"
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json_string="${json_string//\"/\\\"}"
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json_string="${json_string//$'\n'/\\n}"
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json_string="${json_string//$'\t'/\\t}"
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json_string="${json_string//$'\r'/\\r}"
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echo -n "$json_string"
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}
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# Given a variable name returns a json value representation of it
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get_variable_as_json() {
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local var_name="$1"
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if [[ "$(declare -p "$var_name" 2>/dev/null)" =~ "declare -a" ]]; then
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local -n var_ref="$var_name"
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local elements=""
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for element in "${var_ref[@]}"; do
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local escaped_element
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escaped_element="$(escape_json_string "$element")"
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elements+="\"$escaped_element\","
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done
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elements="${elements%,*}"
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echo "[$elements]"
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else
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local var_value
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local escape_value
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eval "var_value=\$$var_name"
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escape_value="$(escape_json_string "$var_value")"
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echo "\"$escape_value\""
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fi
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}
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check_prefixes() {
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local variable="$1"
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shift
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for prefix in "$@"; do
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if [[ "$variable" == "$prefix"* ]]; then
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return 0
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fi
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done
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return 1
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}
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# Given a file name returns a json representation of all variables in it.
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# Supports strings and arrays of strings.
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get_variables_as_json() {
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set +e
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source "$1"
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set -e
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shift
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local variable_names
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variable_names=$(compgen -v)
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local json=""
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for var in $variable_names; do
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# the main reason we don't just extract all is to make it faster
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# with cygwin bash
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if check_prefixes "$var" "$@"; then
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json+="\"$(escape_json_string "$var")\": $(get_variable_as_json "$var"),"
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continue
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fi
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done
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json="{${json%,*}}"
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echo -n "$json"
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}
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main() {
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local pkgbuild="$1"
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shift
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get_variables_as_json "$pkgbuild" "$@"
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}
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main "$@"
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