Blame src/driver/amgc_amain.c

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/**********************************************************/
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/*  apimagic: cparser-based API normalization utility     */
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/*  Copyright (C) 2015--2016  Z. Gilboa                   */
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/*  Released under GPLv2 and GPLv3; see COPYING.APIMAGIC. */
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/**********************************************************/
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#include <stdio.h>
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#include <unistd.h>
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#include <apimagic/apimagic.h>
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#include "apimagic_driver_impl.h"
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#include "apimagic_dprintf_impl.h"
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#ifndef AMGC_DRIVER_FLAGS
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#define AMGC_DRIVER_FLAGS	AMGC_DRIVER_VERBOSITY_ERRORS \
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				| AMGC_DRIVER_VERBOSITY_USAGE
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#endif
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static const char vermsg[] = "%s%s%s (git://midipix.org/apimagic): "
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			     "version %s%d.%d.%d%s.\n"
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			     "[commit reference: %s%s%s]\n";
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static const char * const amgc_ver_color[6] = {
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		"\x1b[1m\x1b[35m","\x1b[0m",
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		"\x1b[1m\x1b[32m","\x1b[0m",
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		"\x1b[1m\x1b[34m","\x1b[0m"
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};
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static const char * const amgc_ver_plain[6] = {
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		"","",
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		"","",
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		"",""
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};
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static ssize_t amgc_version(struct amgc_driver_ctx * dctx, int fdout)
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{
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	const struct amgc_source_version * verinfo;
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	const char * const * verclr;
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	verinfo = amgc_source_version();
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	verclr  = isatty(fdout) ? amgc_ver_color : amgc_ver_plain;
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	return amgc_dprintf(
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			fdout,vermsg,
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			verclr[0],dctx->program,verclr[1],
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			verclr[2],verinfo->major,verinfo->minor,
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			verinfo->revision,verclr[3],
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			verclr[4],verinfo->commit,verclr[5]);
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}
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static void amgc_perform_unit_actions(
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	const struct amgc_driver_ctx *	dctx,
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	struct amgc_unit_ctx *		uctx)
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{
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	const struct amgc_action * action;
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	for (action=uctx->cctx->actions; action->type; action++)
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		amgc_perform_unit_action(dctx,uctx,action,0);
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}
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static int amgc_exit(struct amgc_driver_ctx * dctx, int ret)
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{
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	amgc_output_error_vector(dctx);
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	amgc_free_driver_ctx(dctx);
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	return ret;
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}
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int amgc_main(int argc, char ** argv, char ** envp, const struct amgc_fd_ctx * fdctx)
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{
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	int				ret;
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	int				fdout;
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	uint64_t			flags;
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	struct amgc_driver_ctx *	dctx;
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	struct amgc_unit_ctx *		uctx;
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	const char **			unit;
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	flags = AMGC_DRIVER_FLAGS;
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	fdout = fdctx ? fdctx->fdout : STDOUT_FILENO;
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	if ((ret = amgc_get_driver_ctx(argv,envp,flags,fdctx,&dctx)))
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		return (ret == AMGC_USAGE)
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			? !--argc
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			: AMGC_ERROR;
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	if (dctx->cctx->drvflags & AMGC_DRIVER_VERSION)
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		if ((amgc_version(dctx,fdout)) < 0)
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			return amgc_exit(dctx,AMGC_ERROR);
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	for (unit=dctx->units; *unit && !dctx->errv[0]; unit++) {
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		if (!(amgc_get_unit_ctx(dctx,*unit,&uctx))) {
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			amgc_perform_unit_actions(dctx,uctx);
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			amgc_free_unit_ctx(uctx);
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		}
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	}
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	return amgc_exit(dctx,dctx->errv[0] ? AMGC_ERROR : AMGC_OK);
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}