Andrew's git - gitweb.git/blob

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