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Diffstat (limited to 'src/jio.c')
| -rw-r--r-- | src/jio.c | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/src/jio.c b/src/jio.c new file mode 100644 index 0000000..2e98545 --- /dev/null +++ b/src/jio.c @@ -0,0 +1,139 @@ +/* + * Copyright (C) 2020 - Vito Caputo - <vcaputo@pengaru.com> + * + * This program is free software: you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 3 as published + * by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <stdio.h> +#include <string.h> + +#include <iou.h> + +#include "reclaim-tail-waste.h" +#include "report-tail-waste.h" +#include "report-usage.h" + +#include "upstream/journal-def.h" + +/* jio - journal-file input/output tool */ + +/* Copyright (c) 2020 Vito Caputo <vcaputo@pengaru.com> */ + +/* XXX: This is a WIP experiment, use at your own risk! XXX */ + +int main(int argc, char *argv[]) +{ + iou_t *iou; + int r; + + if (argc < 2) { + printf("Usage: %s {help,reclaim,report} [subcommand-args]\n", argv[0]); + return 0; + } + + iou = iou_new(8); + if (!iou) + return 1; + + /* FIXME TODO This is ad-hoc open-coded jank for now */ + if (!strcmp(argv[1], "help")) { + printf( + "\n" + " help show this help\n" + " license print license header\n" + " reclaim [subcmd] reclaim space from journal files\n" + " tail-waste reclaim wasted space from tails of archives\n" + "\n" + " report [subcmd] report statistics about journal files\n" + " usage report space used by various object types\n" + " tail-waste report extra space allocated onto tails\n" + " version print jio version\n" + "\n" + ); + return 0; + } else if (!strcmp(argv[1], "license")) { + printf( + "\n" + " Copyright (C) 2020 - Vito Caputo - <vcaputo@pengaru.com>\n" + "\n" + " This program is free software: you can redistribute it and/or modify it\n" + " under the terms of the GNU General Public License version 3 as published\n" + " by the Free Software Foundation.\n" + "\n" + " This program is distributed in the hope that it will be useful,\n" + " but WITHOUT ANY WARRANTY; without even the implied warranty of\n" + " MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n" + " GNU General Public License for more details.\n" + "\n" + " You should have received a copy of the GNU General Public License\n" + " along with this program. If not, see <http://www.gnu.org/licenses/>.\n" + "\n" + ); + return 0; + } else if (!strcmp(argv[1], "reclaim")) { + if (argc < 3) { + printf("Usage: %s reclaim {tail-waste}\n", argv[0]); + return 0; + } + + if (!strcmp(argv[2], "tail-waste")) { + r = jio_reclaim_tail_waste(iou, argc, argv); + if (r < 0) { + fprintf(stderr, "failed to reclaim tail waste: %s\n", strerror(-r)); + return 1; + } + } else { + fprintf(stderr, "Unsupported reclaim subcommand: \"%s\"\n", argv[2]); + return 1; + } + } else if (!strcmp(argv[1], "report")) { + if (argc < 3) { + printf("Usage: %s report {usage,tail-waste}\n", argv[0]); + return 0; + } + + if (!strcmp(argv[2], "tail-waste")) { + r = jio_report_tail_waste(iou, argc, argv); + if (r < 0) { + fprintf(stderr, "failed to report tail waste: %s\n", strerror(-r)); + return 1; + } + } else if (!strcmp(argv[2], "usage")) { + r = jio_report_usage(iou, argc, argv); + if (r < 0) { + fprintf(stderr, "failed to report usage: %s\n", strerror(-r)); + return 1; + } + } else { + fprintf(stderr, "Unsupported report subcommand: \"%s\"\n", argv[2]); + return 1; + } + } else if (!strcmp(argv[1], "version")) { + puts("jio version " VERSION); + return 0; + } else { + fprintf(stderr, "Unsupported subcommand: \"%s\"\n", argv[1]); + return 1; + } + + if (!r) { + /* XXX: note this is a successful noop if there's no outstanding io */ + r = iou_run(iou); + if (r < 0) + fprintf(stderr, "iou error: %s\n", strerror(-r)); + } + + iou_free(iou); + + return r != 0; +} |