git/prompt.c

87 lines
1.6 KiB
C

#include "git-compat-util.h"
#include "parse.h"
#include "environment.h"
#include "run-command.h"
#include "strbuf.h"
#include "prompt.h"
#include "compat/terminal.h"
static char *do_askpass(const char *cmd, const char *prompt)
{
struct child_process pass = CHILD_PROCESS_INIT;
static struct strbuf buffer = STRBUF_INIT;
int err = 0;
strvec_push(&pass.args, cmd);
strvec_push(&pass.args, prompt);
pass.out = -1;
if (start_command(&pass))
return NULL;
strbuf_reset(&buffer);
if (strbuf_read(&buffer, pass.out, 20) < 0)
err = 1;
close(pass.out);
if (finish_command(&pass))
err = 1;
if (err) {
error("unable to read askpass response from '%s'", cmd);
strbuf_release(&buffer);
return NULL;
}
strbuf_setlen(&buffer, strcspn(buffer.buf, "\r\n"));
return buffer.buf;
}
char *git_prompt(const char *prompt, int flags)
{
char *r = NULL;
if (flags & PROMPT_ASKPASS) {
const char *askpass;
askpass = getenv("GIT_ASKPASS");
if (!askpass)
askpass = askpass_program;
if (!askpass)
askpass = getenv("SSH_ASKPASS");
if (askpass && *askpass)
r = do_askpass(askpass, prompt);
}
if (!r) {
const char *err;
if (git_env_bool("GIT_TERMINAL_PROMPT", 1)) {
r = git_terminal_prompt(prompt, flags & PROMPT_ECHO);
err = strerror(errno);
} else {
err = "terminal prompts disabled";
}
if (!r) {
/* prompts already contain ": " at the end */
die("could not read %s%s", prompt, err);
}
}
return r;
}
int git_read_line_interactively(struct strbuf *line)
{
int ret;
fflush(stdout);
ret = strbuf_getline_lf(line, stdin);
if (ret != EOF)
strbuf_trim_trailing_newline(line);
return ret;
}