dep

Package manager for embedded C libraries
git clone git://git.finwo.net/app/dep
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main.c (1786B)

      1 #include <stdio.h>
      2 #include <stdlib.h>
      3 #include <string.h>
      4 
      5 #include "cofyc/argparse.h"
      6 #include "command/command.h"
      7 #include "erkkah/naett.h"
      8 #include "rxi/microtar.h"
      9 
     10 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
     11 
     12 struct cmd_struct *commands = NULL;
     13 
     14 static void print_global_usage(void) {
     15   printf("Usage: dep [global options] <command> [command options]\n");
     16   printf("\n");
     17   printf("Global options:\n");
     18   printf("  n/a\n");
     19   printf("\n");
     20   printf("Commands:\n");
     21 
     22   struct cmd_struct *cmd = commands;
     23   while (cmd) {
     24     printf("  %-16s %s\n", cmd->display ? cmd->display : cmd->name[0], cmd->description ? cmd->description : "");
     25     cmd = cmd->next;
     26   }
     27 
     28   printf("\n");
     29   printf("Help topics:\n");
     30   printf("  global          This help text\n");
     31 
     32   cmd = commands;
     33   while (cmd) {
     34     printf("  %-16s More detailed explanation on the %s command\n", cmd->name[0], cmd->name[0]);
     35     cmd = cmd->next;
     36   }
     37 }
     38 
     39 static const char *const usages[] = {
     40     "dep [global options] <command> [command options]",
     41     NULL,
     42 };
     43 
     44 int main(int argc, const char **argv) {
     45   struct argparse        argparse;
     46   struct argparse_option options[] = {
     47       OPT_HELP(),
     48       OPT_END(),
     49   };
     50   argparse_init(&argparse, options, usages, ARGPARSE_STOP_AT_NON_OPTION);
     51   argc = argparse_parse(&argparse, argc, argv);
     52   if (argc < 1) {
     53     print_global_usage();
     54     return 0;
     55   }
     56 
     57   /* Try to run command with args provided. */
     58   struct cmd_struct *cmd = commands;
     59   while (cmd) {
     60     const char **name = cmd->name;
     61     while (*name) {
     62       if (!strcmp(*name, argv[0])) {
     63         goto found;
     64       }
     65       name++;
     66     }
     67     cmd = cmd->next;
     68   }
     69 found:
     70 
     71   if (cmd) {
     72     return cmd->fn(argc, argv);
     73   } else {
     74     fprintf(stderr, "Unknown command: %s\n", argv[0]);
     75     return 1;
     76   }
     77 
     78   return 0;
     79 }