transport-helper: drop read/write errno checks
[git.git] / alias.c
bloba7e4e57130d46188a4a0ee93871375218041344c
1 #include "cache.h"
2 #include "alias.h"
3 #include "config.h"
4 #include "string-list.h"
6 struct config_alias_data {
7 const char *alias;
8 char *v;
9 struct string_list *list;
12 static int config_alias_cb(const char *key, const char *value, void *d)
14 struct config_alias_data *data = d;
15 const char *p;
17 if (!skip_prefix(key, "alias.", &p))
18 return 0;
20 if (data->alias) {
21 if (!strcasecmp(p, data->alias))
22 return git_config_string((const char **)&data->v,
23 key, value);
24 } else if (data->list) {
25 string_list_append(data->list, p);
28 return 0;
31 char *alias_lookup(const char *alias)
33 struct config_alias_data data = { alias, NULL };
35 read_early_config(config_alias_cb, &data);
37 return data.v;
40 void list_aliases(struct string_list *list)
42 struct config_alias_data data = { NULL, NULL, list };
44 read_early_config(config_alias_cb, &data);
47 #define SPLIT_CMDLINE_BAD_ENDING 1
48 #define SPLIT_CMDLINE_UNCLOSED_QUOTE 2
49 static const char *split_cmdline_errors[] = {
50 "cmdline ends with \\",
51 "unclosed quote"
54 int split_cmdline(char *cmdline, const char ***argv)
56 int src, dst, count = 0, size = 16;
57 char quoted = 0;
59 ALLOC_ARRAY(*argv, size);
61 /* split alias_string */
62 (*argv)[count++] = cmdline;
63 for (src = dst = 0; cmdline[src];) {
64 char c = cmdline[src];
65 if (!quoted && isspace(c)) {
66 cmdline[dst++] = 0;
67 while (cmdline[++src]
68 && isspace(cmdline[src]))
69 ; /* skip */
70 ALLOC_GROW(*argv, count + 1, size);
71 (*argv)[count++] = cmdline + dst;
72 } else if (!quoted && (c == '\'' || c == '"')) {
73 quoted = c;
74 src++;
75 } else if (c == quoted) {
76 quoted = 0;
77 src++;
78 } else {
79 if (c == '\\' && quoted != '\'') {
80 src++;
81 c = cmdline[src];
82 if (!c) {
83 FREE_AND_NULL(*argv);
84 return -SPLIT_CMDLINE_BAD_ENDING;
87 cmdline[dst++] = c;
88 src++;
92 cmdline[dst] = 0;
94 if (quoted) {
95 FREE_AND_NULL(*argv);
96 return -SPLIT_CMDLINE_UNCLOSED_QUOTE;
99 ALLOC_GROW(*argv, count + 1, size);
100 (*argv)[count] = NULL;
102 return count;
105 const char *split_cmdline_strerror(int split_cmdline_errno)
107 return split_cmdline_errors[-split_cmdline_errno - 1];