#include "svn_client.h"
#include "svn_pools.h"
#include "svn_config.h"
#include "svn_fs.h"
#include "svn_path.h"
#include "svn_cmdline.h"
static svn_error_t *
prompt_and_read_line(const char *prompt,
char *buffer,
size_t max)
{
int len;
printf("%s: ", prompt);
if (fgets(buffer, max, stdin) == NULL)
return svn_error_create(0, NULL, "error reading stdin");
len = strlen(buffer);
if (len > 0 && buffer[len-1] == '\n')
buffer[len-1] = 0;
return SVN_NO_ERROR;
}
static svn_error_t *
my_simple_prompt_callback (svn_auth_cred_simple_t **cred,
void *baton,
const char *realm,
const char *username,
svn_boolean_t may_save,
apr_pool_t *pool)
{
svn_auth_cred_simple_t *ret = apr_pcalloc (pool, sizeof (*ret));
char answerbuf[100];
if (realm)
{
printf ("Authentication realm: %s\n", realm);
}
if (username)
ret->username = apr_pstrdup (pool, username);
else
{
SVN_ERR (prompt_and_read_line("Username", answerbuf, sizeof(answerbuf)));
ret->username = apr_pstrdup (pool, answerbuf);
}
SVN_ERR (prompt_and_read_line("Password", answerbuf, sizeof(answerbuf)));
ret->password = apr_pstrdup (pool, answerbuf);
*cred = ret;
return SVN_NO_ERROR;
}
static svn_error_t *
my_username_prompt_callback (svn_auth_cred_username_t **cred,
void *baton,
const char *realm,
svn_boolean_t may_save,
apr_pool_t *pool)
{
svn_auth_cred_username_t *ret = apr_pcalloc (pool, sizeof (*ret));
char answerbuf[100];
if (realm)
{
printf ("Authentication realm: %s\n", realm);
}
SVN_ERR (prompt_and_read_line("Username", answerbuf, sizeof(answerbuf)));
ret->username = apr_pstrdup (pool, answerbuf);
*cred = ret;
return SVN_NO_ERROR;
}
static svn_error_t *
open_tmp_file (apr_file_t **fp,
void *callback_baton,
apr_pool_t *pool)
{
const char *path;
const char *ignored_filename;
SVN_ERR (svn_io_temp_dir (&path, pool));
path = svn_path_join (path, "tempfile", pool);
SVN_ERR (svn_io_open_unique_file2 (fp, &ignored_filename,
path, ".tmp",
svn_io_file_del_on_close, pool));
return SVN_NO_ERROR;
}
int
main (int argc, const char **argv)
{
apr_pool_t *pool;
svn_error_t *err;
const char *URL;
svn_ra_session_t *session;
svn_ra_callbacks2_t *cbtable;
svn_revnum_t rev;
apr_hash_t *cfg_hash;
svn_auth_baton_t *auth_baton;
if (argc <= 1)
{
printf ("Usage: %s URL\n", argv[0]);
printf (" Print HEAD revision of URL's repository.\n");
return EXIT_FAILURE;
}
else
URL = argv[1];
if (svn_cmdline_init ("headrev", stderr) != EXIT_SUCCESS)
return EXIT_FAILURE;
pool = svn_pool_create (NULL);
err = svn_fs_initialize (pool);
if (err) goto hit_error;
err = svn_config_ensure (NULL, pool);
if (err) goto hit_error;
err = svn_config_get_config (&cfg_hash, NULL, pool);
if (err) goto hit_error;
{
svn_auth_provider_object_t *provider;
apr_array_header_t *providers
= apr_array_make (pool, 4, sizeof (svn_auth_provider_object_t *));
svn_client_get_simple_prompt_provider (&provider,
my_simple_prompt_callback,
NULL,
2, pool);
APR_ARRAY_PUSH (providers, svn_auth_provider_object_t *) = provider;
svn_client_get_username_prompt_provider (&provider,
my_username_prompt_callback,
NULL,
2, pool);
APR_ARRAY_PUSH (providers, svn_auth_provider_object_t *) = provider;
svn_auth_open (&auth_baton, providers, pool);
}
cbtable = apr_pcalloc (pool, sizeof(*cbtable));
cbtable->auth_baton = auth_baton;
cbtable->open_tmp_file = open_tmp_file;
err = svn_ra_open2(&session, URL, cbtable, NULL, cfg_hash, pool);
if (err) goto hit_error;
err = svn_ra_get_latest_revnum(session, &rev, pool);
if (err) goto hit_error;
printf ("The latest revision is %ld.\n", rev);
return EXIT_SUCCESS;
hit_error:
svn_handle_error2 (err, stderr, FALSE, "headrev: ");
return EXIT_FAILURE;
}