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chromium / external / github.com / git / git / refs/tags/v2.10.4 / . / alias.c
blob: 3b90397a99d9f7ed4a0c1c5a83f5e69c879e752f [file] [log] [blame]
Jeff King94351112008-02-24 22:17:14[diff] [blame]1#include "cache.h"
2
Jeff King94351112008-02-24 22:17:14[diff] [blame]3char *alias_lookup(const char *alias)
4{
Tanay Abhra11179152014-08-07 16:21:25[diff] [blame]5 char *v = NULL;
6 struct strbuf key = STRBUF_INIT;
7 strbuf_addf(&key, "alias.%s", alias);
Jeff King9e9de182015-08-24 06:11:33[diff] [blame]8 if (git_config_key_is_valid(key.buf))
9 git_config_get_string(key.buf, &v);
Tanay Abhra11179152014-08-07 16:21:25[diff] [blame]10 strbuf_release(&key);
11 return v;
Jeff King94351112008-02-24 22:17:14[diff] [blame]12}
Miklos Vajna0989fe92008-06-27 16:21:54[diff] [blame]13
Greg Brockmanad9ac6d2010-08-07 05:13:39[diff] [blame]14#define SPLIT_CMDLINE_BAD_ENDING 1
15#define SPLIT_CMDLINE_UNCLOSED_QUOTE 2
16static const char *split_cmdline_errors[] = {
17 "cmdline ends with \\",
18 "unclosed quote"
19};
20
Miklos Vajna0989fe92008-06-27 16:21:54[diff] [blame]21int split_cmdline(char *cmdline, const char ***argv)
22{
23 int src, dst, count = 0, size = 16;
24 char quoted = 0;
25
Jeff Kingb32fa952016-02-22 22:44:25[diff] [blame]26 ALLOC_ARRAY(*argv, size);
Miklos Vajna0989fe92008-06-27 16:21:54[diff] [blame]27
28 /* split alias_string */
29 (*argv)[count++] = cmdline;
30 for (src = dst = 0; cmdline[src];) {
31 char c = cmdline[src];
32 if (!quoted && isspace(c)) {
33 cmdline[dst++] = 0;
34 while (cmdline[++src]
35 && isspace(cmdline[src]))
36 ; /* skip */
Felipe Contrerascc108372013-09-21 19:15:44[diff] [blame]37 ALLOC_GROW(*argv, count + 1, size);
Miklos Vajna0989fe92008-06-27 16:21:54[diff] [blame]38 (*argv)[count++] = cmdline + dst;
39 } else if (!quoted && (c == '\'' || c == '"')) {
40 quoted = c;
41 src++;
42 } else if (c == quoted) {
43 quoted = 0;
44 src++;
45 } else {
46 if (c == '\\' && quoted != '\'') {
47 src++;
48 c = cmdline[src];
49 if (!c) {
50 free(*argv);
51 *argv = NULL;
Greg Brockmanad9ac6d2010-08-07 05:13:39[diff] [blame]52 return -SPLIT_CMDLINE_BAD_ENDING;
Miklos Vajna0989fe92008-06-27 16:21:54[diff] [blame]53 }
54 }
55 cmdline[dst++] = c;
56 src++;
57 }
58 }
59
60 cmdline[dst] = 0;
61
62 if (quoted) {
63 free(*argv);
64 *argv = NULL;
Greg Brockmanad9ac6d2010-08-07 05:13:39[diff] [blame]65 return -SPLIT_CMDLINE_UNCLOSED_QUOTE;
Miklos Vajna0989fe92008-06-27 16:21:54[diff] [blame]66 }
67
Felipe Contrerascc108372013-09-21 19:15:44[diff] [blame]68 ALLOC_GROW(*argv, count + 1, size);
Jeff King27d54382009-05-08 09:06:15[diff] [blame]69 (*argv)[count] = NULL;
70
Miklos Vajna0989fe92008-06-27 16:21:54[diff] [blame]71 return count;
72}
73
Felipe Contrerascc108372013-09-21 19:15:44[diff] [blame]74const char *split_cmdline_strerror(int split_cmdline_errno)
75{
76 return split_cmdline_errors[-split_cmdline_errno - 1];
Greg Brockmanad9ac6d2010-08-07 05:13:39[diff] [blame]77}