Andrew's git - gitweb.git/blob

   1#include "cache.h"
   2
   3struct config_alias_data {
   4        const char *alias;
   5        char *v;
   6};
   7
   8static int config_alias_cb(const char *key, const char *value, void *d)
   9{
  10        struct config_alias_data *data = d;
  11        const char *p;
  12
  13        if (skip_prefix(key, "alias.", &p) && !strcmp(p, data->alias))
  14                return git_config_string((const char **)&data->v, key, value);
  15
  16        return 0;
  17}
  18
  19char *alias_lookup(const char *alias)
  20{
  21        struct config_alias_data data = { alias, NULL };
  22
  23        read_early_config(config_alias_cb, &data);
  24
  25        return data.v;
  26}
  27
  28#define SPLIT_CMDLINE_BAD_ENDING 1
  29#define SPLIT_CMDLINE_UNCLOSED_QUOTE 2
  30static const char *split_cmdline_errors[] = {
  31        "cmdline ends with \\",
  32        "unclosed quote"
  33};
  34
  35int split_cmdline(char *cmdline, const char ***argv)
  36{
  37        int src, dst, count = 0, size = 16;
  38        char quoted = 0;
  39
  40        ALLOC_ARRAY(*argv, size);
  41
  42        /* split alias_string */
  43        (*argv)[count++] = cmdline;
  44        for (src = dst = 0; cmdline[src];) {
  45                char c = cmdline[src];
  46                if (!quoted && isspace(c)) {
  47                        cmdline[dst++] = 0;
  48                        while (cmdline[++src]
  49                                        && isspace(cmdline[src]))
  50                                ; /* skip */
  51                        ALLOC_GROW(*argv, count + 1, size);
  52                        (*argv)[count++] = cmdline + dst;
  53                } else if (!quoted && (c == '\'' || c == '"')) {
  54                        quoted = c;
  55                        src++;
  56                } else if (c == quoted) {
  57                        quoted = 0;
  58                        src++;
  59                } else {
  60                        if (c == '\\' && quoted != '\'') {
  61                                src++;
  62                                c = cmdline[src];
  63                                if (!c) {
  64                                        free(*argv);
  65                                        *argv = NULL;
  66                                        return -SPLIT_CMDLINE_BAD_ENDING;
  67                                }
  68                        }
  69                        cmdline[dst++] = c;
  70                        src++;
  71                }
  72        }
  73
  74        cmdline[dst] = 0;
  75
  76        if (quoted) {
  77                free(*argv);
  78                *argv = NULL;
  79                return -SPLIT_CMDLINE_UNCLOSED_QUOTE;
  80        }
  81
  82        ALLOC_GROW(*argv, count + 1, size);
  83        (*argv)[count] = NULL;
  84
  85        return count;
  86}
  87
  88const char *split_cmdline_strerror(int split_cmdline_errno)
  89{
  90        return split_cmdline_errors[-split_cmdline_errno - 1];
  91}