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1 | #include "cache.h" | |
2 | #include "alias.h" | |
3 | #include "config.h" | |
4 | #include "string-list.h" | |
5 | ||
6 | struct config_alias_data { | |
7 | const char *alias; | |
8 | char *v; | |
9 | struct string_list *list; | |
10 | }; | |
11 | ||
12 | static int config_alias_cb(const char *key, const char *value, void *d) | |
13 | { | |
14 | struct config_alias_data *data = d; | |
15 | const char *p; | |
16 | ||
17 | if (!skip_prefix(key, "alias.", &p)) | |
18 | return 0; | |
19 | ||
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); | |
26 | } | |
27 | ||
28 | return 0; | |
29 | } | |
30 | ||
31 | char *alias_lookup(const char *alias) | |
32 | { | |
33 | struct config_alias_data data = { alias, NULL }; | |
34 | ||
35 | read_early_config(config_alias_cb, &data); | |
36 | ||
37 | return data.v; | |
38 | } | |
39 | ||
40 | void list_aliases(struct string_list *list) | |
41 | { | |
42 | struct config_alias_data data = { NULL, NULL, list }; | |
43 | ||
44 | read_early_config(config_alias_cb, &data); | |
45 | } | |
46 | ||
47 | #define SPLIT_CMDLINE_BAD_ENDING 1 | |
48 | #define SPLIT_CMDLINE_UNCLOSED_QUOTE 2 | |
49 | static const char *split_cmdline_errors[] = { | |
50 | N_("cmdline ends with \\"), | |
51 | N_("unclosed quote") | |
52 | }; | |
53 | ||
54 | int split_cmdline(char *cmdline, const char ***argv) | |
55 | { | |
56 | int src, dst, count = 0, size = 16; | |
57 | char quoted = 0; | |
58 | ||
59 | ALLOC_ARRAY(*argv, size); | |
60 | ||
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; | |
85 | } | |
86 | } | |
87 | cmdline[dst++] = c; | |
88 | src++; | |
89 | } | |
90 | } | |
91 | ||
92 | cmdline[dst] = 0; | |
93 | ||
94 | if (quoted) { | |
95 | FREE_AND_NULL(*argv); | |
96 | return -SPLIT_CMDLINE_UNCLOSED_QUOTE; | |
97 | } | |
98 | ||
99 | ALLOC_GROW(*argv, count + 1, size); | |
100 | (*argv)[count] = NULL; | |
101 | ||
102 | return count; | |
103 | } | |
104 | ||
105 | const char *split_cmdline_strerror(int split_cmdline_errno) | |
106 | { | |
107 | return split_cmdline_errors[-split_cmdline_errno - 1]; | |
108 | } |