Andrew's git - gitweb.git/blob

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