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https://github.com/pengutronix/genimage.git
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cfd0426a62
When none of the images need files from the rootpath, then make it optional. Some types never need it. For others the image must be explicitly marked as empty. Fixes: #181 Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>
105 lines
2.4 KiB
C
105 lines
2.4 KiB
C
/*
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* Copyright (c) 2018 Alexandre Fournier <alexandre.fournier@kiplink.fr>, Kiplink
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <confuse.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <errno.h>
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#include "genimage.h"
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struct qemu {
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const char *format;
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const char *extraargs;
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};
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static int qemu_generate(struct image *image)
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{
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struct partition *part;
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struct qemu *qemu = image->handler_priv;
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char *partitions = NULL;
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int ret;
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list_for_each_entry(part, &image->partitions, list) {
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struct image *child;
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const char *infile;
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if (!part->image) {
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image_debug(image, "skipping partition %s\n",
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part->name);
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continue;
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}
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image_info(image, "adding partition %s from %s ...\n",
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part->name, part->image);
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child = image_get(part->image);
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infile = imageoutfile(child);
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if (!partitions)
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xasprintf(&partitions, "'%s'", infile);
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else
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xasprintf(&partitions, "%s '%s'", partitions, infile);
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}
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ret = systemp(image, "qemu-img convert %s -O %s %s '%s'",
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qemu->extraargs,
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qemu->format,
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partitions,
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imageoutfile(image));
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return ret;
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}
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static int qemu_setup(struct image *image, cfg_t *cfg)
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{
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struct qemu *qemu = xzalloc(sizeof(*qemu));
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struct partition *part;
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int partitions_count = 0;
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list_for_each_entry(part, &image->partitions, list) {
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if (part->image)
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partitions_count++;
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}
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if (partitions_count == 0) {
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image_error(image, "no partition given\n");
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return -EINVAL;
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}
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qemu->format = cfg_getstr(cfg, "format");
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qemu->extraargs = cfg_getstr(cfg, "extraargs");
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image->handler_priv = qemu;
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return 0;
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}
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static cfg_opt_t qemu_opts[] = {
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CFG_STR("format", "qcow2", CFGF_NONE),
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CFG_STR("extraargs", "", CFGF_NONE),
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CFG_END()
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};
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struct image_handler qemu_handler = {
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.type = "qemu",
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.no_rootpath = cfg_true,
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.generate = qemu_generate,
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.setup = qemu_setup,
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.opts = qemu_opts,
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};
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