Code

refactor git_getpass into generic prompt function
[git.git] / prompt.c
1 #include "cache.h"
2 #include "run-command.h"
3 #include "strbuf.h"
4 #include "prompt.h"
6 static char *do_askpass(const char *cmd, const char *prompt)
7 {
8         struct child_process pass;
9         const char *args[3];
10         static struct strbuf buffer = STRBUF_INIT;
12         args[0] = cmd;
13         args[1] = prompt;
14         args[2] = NULL;
16         memset(&pass, 0, sizeof(pass));
17         pass.argv = args;
18         pass.out = -1;
20         if (start_command(&pass))
21                 exit(1);
23         strbuf_reset(&buffer);
24         if (strbuf_read(&buffer, pass.out, 20) < 0)
25                 die("failed to get '%s' from %s\n", prompt, cmd);
27         close(pass.out);
29         if (finish_command(&pass))
30                 exit(1);
32         strbuf_setlen(&buffer, strcspn(buffer.buf, "\r\n"));
34         return buffer.buf;
35 }
37 char *git_prompt(const char *prompt, int flags)
38 {
39         char *r;
41         if (flags & PROMPT_ASKPASS) {
42                 const char *askpass;
44                 askpass = getenv("GIT_ASKPASS");
45                 if (!askpass)
46                         askpass = askpass_program;
47                 if (!askpass)
48                         askpass = getenv("SSH_ASKPASS");
49                 if (askpass && *askpass)
50                         return do_askpass(askpass, prompt);
51         }
53         r = getpass(prompt);
54         if (!r)
55                 die_errno("could not read '%s'", prompt);
56         return r;
57 }
59 char *git_getpass(const char *prompt)
60 {
61         return git_prompt(prompt, PROMPT_ASKPASS);
62 }