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pull --rebase: exit early when the working directory is dirty

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Re-implement the behavior introduced by f9189cf (pull --rebase: exit
early when the working directory is dirty, 2008-05-21).

Signed-off-by: Paul Tan <pyokagan@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Paul Tan 2015-06-18 18:54:10 +08:00 committed by Junio C Hamano
parent 81dbd768db
commit 8944969c20
1 changed files with 76 additions and 1 deletions
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77
builtin/pull.c
View file

@ -14,6 +14,8 @@
#include "remote.h"
#include "dir.h"
#include "refs.h"
#include "revision.h"
#include "lockfile.h"
enum rebase_type {
REBASE_INVALID = -1,
@ -295,6 +297,73 @@ static enum rebase_type config_get_rebase(void)
return REBASE_FALSE;
}
/**
* Returns 1 if there are unstaged changes, 0 otherwise.
*/
static int has_unstaged_changes(const char *prefix)
{
struct rev_info rev_info;
int result;
init_revisions(&rev_info, prefix);
DIFF_OPT_SET(&rev_info.diffopt, IGNORE_SUBMODULES);
DIFF_OPT_SET(&rev_info.diffopt, QUICK);
diff_setup_done(&rev_info.diffopt);
result = run_diff_files(&rev_info, 0);
return diff_result_code(&rev_info.diffopt, result);
}
/**
* Returns 1 if there are uncommitted changes, 0 otherwise.
*/
static int has_uncommitted_changes(const char *prefix)
{
struct rev_info rev_info;
int result;
if (is_cache_unborn())
return 0;
init_revisions(&rev_info, prefix);
DIFF_OPT_SET(&rev_info.diffopt, IGNORE_SUBMODULES);
DIFF_OPT_SET(&rev_info.diffopt, QUICK);
add_head_to_pending(&rev_info);
diff_setup_done(&rev_info.diffopt);
result = run_diff_index(&rev_info, 1);
return diff_result_code(&rev_info.diffopt, result);
}
/**
* If the work tree has unstaged or uncommitted changes, dies with the
* appropriate message.
*/
static void die_on_unclean_work_tree(const char *prefix)
{
struct lock_file *lock_file = xcalloc(1, sizeof(*lock_file));
int do_die = 0;
hold_locked_index(lock_file, 0);
refresh_cache(REFRESH_QUIET);
update_index_if_able(&the_index, lock_file);
rollback_lock_file(lock_file);
if (has_unstaged_changes(prefix)) {
error(_("Cannot pull with rebase: You have unstaged changes."));
do_die = 1;
}
if (has_uncommitted_changes(prefix)) {
if (do_die)
error(_("Additionally, your index contains uncommitted changes."));
else
error(_("Cannot pull with rebase: Your index contains uncommitted changes."));
do_die = 1;
}
if (do_die)
exit(1);
}
/**
* Appends merge candidates from FETCH_HEAD that are not marked not-for-merge
* into merge_heads.
@ -751,9 +820,15 @@ int cmd_pull(int argc, const char **argv, const char *prefix)
if (get_sha1("HEAD", orig_head))
hashclr(orig_head);
if (opt_rebase)
if (opt_rebase) {
if (is_null_sha1(orig_head) && !is_cache_unborn())
die(_("Updating an unborn branch with changes added to the index."));
die_on_unclean_work_tree(prefix);
if (get_rebase_fork_point(rebase_fork_point, repo, *refspecs))
hashclr(rebase_fork_point);
}
if (run_fetch(repo, refspecs))
return 1;