writeout: support to generate JSON output

This commit adds support to generate JSON via the writeout feature:

    -w "%{json}"

It leverages the existing infrastructure as much as possible. Thus,
generating the JSON on STDERR is possible by:

    -w "%{stderr}%{json}"

This implements a variant of
https://github.com/curl/curl/wiki/JSON#--write-out-json.

Closes #4870
This commit is contained in:
Mathias Gumz 2020-02-01 18:55:24 +01:00 committed by Daniel Stenberg
parent d83402813b
commit 04c03416e6
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8 changed files with 361 additions and 83 deletions

30
src/tool_writeout_json.h Normal file
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#ifndef HEADER_CURL_TOOL_WRITEOUT_JSON_H
#define HEADER_CURL_TOOL_WRITEOUT_JSON_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "tool_setup.h"
#include "tool_writeout.h"
void ourWriteOutJSON(const struct writeoutvar mappings[],
CURL *curl, struct OutStruct *outs, FILE *stream);
#endif /* HEADER_CURL_TOOL_WRITEOUT_H */