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Add interactive mode to git-shell for user-friendliness

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Signed-off-by: Greg Brockman <gdb@mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Greg Brockman 2010-07-28 00:43:03 -07:00 committed by Junio C Hamano
parent 2dbc887eaa
commit e69164ddb9
1 changed files with 68 additions and 8 deletions
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76
shell.c
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@ -2,8 +2,10 @@
#include "quote.h"
#include "exec_cmd.h"
#include "strbuf.h"
#include "run-command.h"
#define COMMAND_DIR "git-shell-commands"
#define HELP_COMMAND COMMAND_DIR "/help"
static int do_generic_cmd(const char *me, char *arg)
{
@ -59,6 +61,56 @@ static void cd_to_homedir(void)
die("could not chdir to user's home directory");
}
static void run_shell(void)
{
int done = 0;
static const char *help_argv[] = { HELP_COMMAND, NULL };
/* Print help if enabled */
run_command_v_opt(help_argv, RUN_SILENT_EXEC_FAILURE);
do {
struct strbuf line = STRBUF_INIT;
const char *prog;
char *full_cmd;
char *rawargs;
const char **argv;
int code;
fprintf(stderr, "git> ");
if (strbuf_getline(&line, stdin, '\n') == EOF) {
fprintf(stderr, "\n");
strbuf_release(&line);
break;
}
strbuf_trim(&line);
rawargs = strbuf_detach(&line, NULL);
if (split_cmdline(rawargs, &argv) == -1) {
free(rawargs);
continue;
}
prog = argv[0];
if (!strcmp(prog, "")) {
} else if (!strcmp(prog, "quit") || !strcmp(prog, "logout") ||
!strcmp(prog, "exit") || !strcmp(prog, "bye")) {
done = 1;
} else if (is_valid_cmd_name(prog)) {
full_cmd = make_cmd(prog);
argv[0] = full_cmd;
code = run_command_v_opt(argv, RUN_SILENT_EXEC_FAILURE);
if (code == -1 && errno == ENOENT) {
fprintf(stderr, "unrecognized command '%s'\n", prog);
}
free(full_cmd);
} else {
fprintf(stderr, "invalid command format '%s'\n", prog);
}
free(argv);
free(rawargs);
} while (!done);
}
static struct commands {
const char *name;
int (*exec)(const char *me, char *arg);
@ -92,15 +144,23 @@ int main(int argc, char **argv)
/*
* Special hack to pretend to be a CVS server
*/
if (argc == 2 && !strcmp(argv[1], "cvs server"))
if (argc == 2 && !strcmp(argv[1], "cvs server")) {
argv--;
/*
* We do not accept anything but "-c" followed by "cmd arg",
* where "cmd" is a very limited subset of git commands.
*/
else if (argc != 3 || strcmp(argv[1], "-c"))
die("What do you think I am? A shell?");
} else if (argc == 1) {
/* Allow the user to run an interactive shell */
cd_to_homedir();
if (access(COMMAND_DIR, R_OK | X_OK) == -1)
die("Sorry, the interactive git-shell is not enabled");
run_shell();
exit(0);
} else if (argc != 3 || strcmp(argv[1], "-c")) {
/*
* We do not accept any other modes except "-c" followed by
* "cmd arg", where "cmd" is a very limited subset of git
* commands or a command in the COMMAND_DIR
*/
die("Run with no arguments or with -c cmd");
}
prog = xstrdup(argv[2]);
if (!strncmp(prog, "git", 3) && isspace(prog[3]))