mirror of
https://github.com/versity/scoutfs.git
synced 2026-08-26 09:07:06 +00:00
Zach Brown
d4b1cd5931
Change the format version so that this code is incompatible with existing releases, and vice versa. We're distributing test builds and might change the format based on feedback and we don't want it to be possible to corrupt volumes with the changes in these pre-release builds. This is a one-off patch for this feature branch. We may work this into the build more formally if it works out. Signed-off-by: Zach Brown <zab@versity.com>
114 lines
2.5 KiB
C
114 lines
2.5 KiB
C
#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdbool.h>
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#include <string.h>
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#include <assert.h>
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#include <argp.h>
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#include "cmd.h"
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#include "util.h"
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#include "format.h"
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static struct argp_command {
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char *name;
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struct argp *argp;
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int group;
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int (*func)(int argc, char **argv);
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} argp_cmds[100], *next_argp_cmd = argp_cmds;
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#define cmd_for_each(com) for (com = argp_cmds; com->func; com++)
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void cmd_register_argp(char *name, struct argp *argp, int group,
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int (*func)(int argc, char **argv))
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{
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struct argp_command *com = next_argp_cmd++;
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assert((com - argp_cmds) < array_size(argp_cmds));
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com->name = name;
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com->argp = argp;
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com->group = group;
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com->func = func;
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}
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static struct argp_command *find_command(char *name)
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{
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struct argp_command *com;
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cmd_for_each(com) {
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if (!strcmp(name, com->name))
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return com;
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}
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return NULL;
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}
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static void print_cmds_for_group(int group)
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{
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struct argp_command *com;
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int largest = 0;
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/* Base alignment on all groups */
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cmd_for_each(com)
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largest = max(strlen(com->name), largest);
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cmd_for_each(com) {
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if (com->group == group) {
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fprintf(stderr, " %*s %s\n %*s %s\n",
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largest, com->name, com->argp->args_doc,
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largest, "", com->argp->doc);
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}
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}
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}
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static void usage(void)
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{
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fprintf(stderr, "usage: scoutfs <command> [<args>]\n\n");
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fprintf(stderr, "Selected fs defaults to current working directory.\n");
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fprintf(stderr, "See <command> --help for more details.\n");
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fprintf(stderr, "\nSupported format version: %llu-%llu\n",
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SCOUTFS_FORMAT_VERSION_MIN, SCOUTFS_FORMAT_VERSION_MAX);
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fprintf(stderr, "\nCore admin:\n");
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print_cmds_for_group(GROUP_CORE);
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fprintf(stderr, "\nAdditional Information:\n");
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print_cmds_for_group(GROUP_INFO);
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fprintf(stderr, "\nSearch Acceleration:\n");
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print_cmds_for_group(GROUP_SEARCH);
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fprintf(stderr, "\nArchival Agent Support:\n");
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print_cmds_for_group(GROUP_AGENT);
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fprintf(stderr, "\nDebugging commands:\n");
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print_cmds_for_group(GROUP_DEBUG);
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}
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/* this returns a positive unix return code on error for some reason */
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char cmd_execute(int argc, char **argv)
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{
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struct argp_command *com = NULL;
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int ret;
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if (argc > 1) {
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com = find_command(argv[1]);
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if (!com)
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fprintf(stderr, "scoutfs: unrecognized command: '%s'\n",
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argv[1]);
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}
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if (!com) {
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usage();
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return 1;
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}
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ret = com->func(argc - 1, argv + 1);
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if (ret < 0) {
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fprintf(stderr, "scoutfs: %s failed: %s (%d)\n",
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com->name, strerror(-ret), -ret);
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return 1;
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}
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return 0;
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}
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