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checkout,merge: disallow overwriting ignored files with --no-overwrite-ignore

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Ignored files usually are generated files (e.g. .o files) and can be
safely discarded. However sometimes users may have important files in
working directory, but still want a clean "git status", so they mark
them as ignored files. But in this case, these files should not be
overwritten without asking first.

Enable this use case with --no-overwrite-ignore, where git only sees
tracked and untracked files, no ignored files. Those who mix
discardable ignored files with important ones may have to sort it out
themselves.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Nguyễn Thái Ngọc Duy 2011-11-27 17:15:33 +07:00 committed by Junio C Hamano
parent f44054c82f
commit c1d7036b6b
2 changed files with 16 additions and 7 deletions
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11
builtin/checkout.c
View file

@ -34,6 +34,7 @@ struct checkout_opts {
int force_detach;
int writeout_stage;
int writeout_error;
int overwrite_ignore;
/* not set by parse_options */
int branch_exists;
@ -409,9 +410,11 @@ static int merge_working_tree(struct checkout_opts *opts,
topts.gently = opts->merge && old->commit;
topts.verbose_update = !opts->quiet;
topts.fn = twoway_merge;
topts.dir = xcalloc(1, sizeof(*topts.dir));
topts.dir->flags |= DIR_SHOW_IGNORED;
setup_standard_excludes(topts.dir);
if (opts->overwrite_ignore) {
topts.dir = xcalloc(1, sizeof(*topts.dir));
topts.dir->flags |= DIR_SHOW_IGNORED;
setup_standard_excludes(topts.dir);
}
tree = parse_tree_indirect(old->commit ?
old->commit->object.sha1 :
EMPTY_TREE_SHA1_BIN);
@ -926,6 +929,7 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
3),
OPT__FORCE(&opts.force, "force checkout (throw away local modifications)"),
OPT_BOOLEAN('m', "merge", &opts.merge, "perform a 3-way merge with the new branch"),
OPT_BOOLEAN(0, "overwrite-ignore", &opts.overwrite_ignore, "update ignored files (default)"),
OPT_STRING(0, "conflict", &conflict_style, "style",
"conflict style (merge or diff3)"),
OPT_BOOLEAN('p', "patch", &patch_mode, "select hunks interactively"),
@ -937,6 +941,7 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
memset(&opts, 0, sizeof(opts));
memset(&new, 0, sizeof(new));
opts.overwrite_ignore = 1;
gitmodules_config();
git_config(git_checkout_config, &opts);

12
builtin/merge.c
View file

@ -48,6 +48,7 @@ static int show_diffstat = 1, shortlog_len, squash;
static int option_commit = 1, allow_fast_forward = 1;
static int fast_forward_only, option_edit;
static int allow_trivial = 1, have_message;
static int overwrite_ignore = 1;
static struct strbuf merge_msg;
static struct commit_list *remoteheads;
static struct strategy **use_strategies;
@ -207,6 +208,7 @@ static struct option builtin_merge_options[] = {
OPT_BOOLEAN(0, "abort", &abort_current_merge,
"abort the current in-progress merge"),
OPT_SET_INT(0, "progress", &show_progress, "force progress reporting", 1),
OPT_BOOLEAN(0, "overwrite-ignore", &overwrite_ignore, "update ignored files (default)"),
OPT_END()
};
@ -773,10 +775,12 @@ int checkout_fast_forward(const unsigned char *head, const unsigned char *remote
memset(&trees, 0, sizeof(trees));
memset(&opts, 0, sizeof(opts));
memset(&t, 0, sizeof(t));
memset(&dir, 0, sizeof(dir));
dir.flags |= DIR_SHOW_IGNORED;
setup_standard_excludes(&dir);
opts.dir = &dir;
if (overwrite_ignore) {
memset(&dir, 0, sizeof(dir));
dir.flags |= DIR_SHOW_IGNORED;
setup_standard_excludes(&dir);
opts.dir = &dir;
}
opts.head_idx = 1;
opts.src_index = &the_index;