From 8af84dadb142f7321ff0ce8690385e99da8ede2f Mon Sep 17 00:00:00 2001 From: Johannes Schindelin Date: Sun, 31 Aug 2008 15:50:23 +0200 Subject: git wrapper: DWIM mistyped commands This patch introduces a modified Damerau-Levenshtein algorithm into Git's code base, and uses it with the following penalties to show some similar commands when an unknown command was encountered: swap = 0, insertion = 1, substitution = 2, deletion = 4 A typical output would now look like this: $ git sm git: 'sm' is not a git-command. See 'git --help'. Did you mean one of these? am rm The cut-off is at similarity rating 6, which was empirically determined to give sensible results. As a convenience, if there is only one candidate, Git continues under the assumption that the user mistyped it. Example: $ git reabse WARNING: You called a Git program named 'reabse', which does not exist. Continuing under the assumption that you meant 'rebase' [...] Signed-off-by: Johannes Schindelin Signed-off-by: Alex Riesen Signed-off-by: Junio C Hamano --- git.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'git.c') diff --git a/git.c b/git.c index 37b1d76a0..54c5bfa69 100644 --- a/git.c +++ b/git.c @@ -499,7 +499,9 @@ int main(int argc, const char **argv) cmd, argv[0]); exit(1); } - help_unknown_cmd(cmd); + argv[0] = help_unknown_cmd(cmd); + handle_internal_command(argc, argv); + execv_dashed_external(argv); } fprintf(stderr, "Failed to run command '%s': %s\n", -- cgit v1.2.1