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authorJunio C Hamano <gitster@pobox.com>2010-03-20 18:29:35 (GMT)
committerJunio C Hamano <gitster@pobox.com>2010-03-20 18:29:35 (GMT)
commit49559cad6cab8af548321249d320d9bb372d1859 (patch)
tree16298e6fac5bde5fc951e20f46c42927cdad8ea0 /builtin/reset.c
parent2e5b98d9064292881fb1fd7c327948c7057a490a (diff)
parenteaf436c09c09a28804697c89f3ff9a7e1ad2361c (diff)
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Merge branch 'cc/reset-keep'
* cc/reset-keep: Documentation: improve description of "git reset --keep" reset: disallow using --keep when there are unmerged entries reset: disallow "reset --keep" outside a work tree Documentation: reset: describe new "--keep" option reset: add test cases for "--keep" option reset: add option "--keep" to "git reset"
Diffstat (limited to 'builtin/reset.c')
-rw-r--r--builtin/reset.c47
1 files changed, 38 insertions, 9 deletions
diff --git a/builtin/reset.c b/builtin/reset.c
index 0f5022e..2c3a69a 100644
--- a/builtin/reset.c
+++ b/builtin/reset.c
@@ -22,13 +22,15 @@
#include "cache-tree.h"
static const char * const git_reset_usage[] = {
- "git reset [--mixed | --soft | --hard | --merge] [-q] [<commit>]",
+ "git reset [--mixed | --soft | --hard | --merge | --keep] [-q] [<commit>]",
"git reset [--mixed] <commit> [--] <paths>...",
NULL
};
-enum reset_type { MIXED, SOFT, HARD, MERGE, NONE };
-static const char *reset_type_names[] = { "mixed", "soft", "hard", "merge", NULL };
+enum reset_type { MIXED, SOFT, HARD, MERGE, KEEP, NONE };
+static const char *reset_type_names[] = {
+ "mixed", "soft", "hard", "merge", "keep", NULL
+};
static char *args_to_str(const char **argv)
{
@@ -71,6 +73,7 @@ static int reset_index_file(const unsigned char *sha1, int reset_type, int quiet
if (!quiet)
opts.verbose_update = 1;
switch (reset_type) {
+ case KEEP:
case MERGE:
opts.update = 1;
break;
@@ -85,6 +88,16 @@ static int reset_index_file(const unsigned char *sha1, int reset_type, int quiet
read_cache_unmerged();
+ if (reset_type == KEEP) {
+ unsigned char head_sha1[20];
+ if (get_sha1("HEAD", head_sha1))
+ return error("You do not have a valid HEAD.");
+ if (!fill_tree_descriptor(desc, head_sha1))
+ return error("Failed to find tree of HEAD.");
+ nr++;
+ opts.fn = twoway_merge;
+ }
+
if (!fill_tree_descriptor(desc + nr - 1, sha1))
return error("Failed to find tree of %s.", sha1_to_hex(sha1));
if (unpack_trees(nr, desc, &opts))
@@ -211,6 +224,14 @@ static void prepend_reflog_action(const char *action, char *buf, size_t size)
warning("Reflog action message too long: %.*s...", 50, buf);
}
+static void die_if_unmerged_cache(int reset_type)
+{
+ if (is_merge() || read_cache() < 0 || unmerged_cache())
+ die("Cannot do a %s reset in the middle of a merge.",
+ reset_type_names[reset_type]);
+
+}
+
int cmd_reset(int argc, const char **argv, const char *prefix)
{
int i = 0, reset_type = NONE, update_ref_status = 0, quiet = 0;
@@ -229,6 +250,8 @@ int cmd_reset(int argc, const char **argv, const char *prefix)
"reset HEAD, index and working tree", HARD),
OPT_SET_INT(0, "merge", &reset_type,
"reset HEAD, index and working tree", MERGE),
+ OPT_SET_INT(0, "keep", &reset_type,
+ "reset HEAD but keep local changes", KEEP),
OPT_BOOLEAN('p', "patch", &patch_mode, "select hunks interactively"),
OPT_END()
};
@@ -304,7 +327,7 @@ int cmd_reset(int argc, const char **argv, const char *prefix)
if (reset_type == NONE)
reset_type = MIXED; /* by default */
- if (reset_type == HARD || reset_type == MERGE)
+ if (reset_type != SOFT && reset_type != MIXED)
setup_work_tree();
if (reset_type == MIXED && is_bare_repository())
@@ -314,12 +337,18 @@ int cmd_reset(int argc, const char **argv, const char *prefix)
/* Soft reset does not touch the index file nor the working tree
* at all, but requires them in a good order. Other resets reset
* the index file to the tree object we are switching to. */
- if (reset_type == SOFT) {
- if (is_merge() || read_cache() < 0 || unmerged_cache())
- die("Cannot do a soft reset in the middle of a merge.");
+ if (reset_type == SOFT)
+ die_if_unmerged_cache(reset_type);
+ else {
+ int err;
+ if (reset_type == KEEP)
+ die_if_unmerged_cache(reset_type);
+ err = reset_index_file(sha1, reset_type, quiet);
+ if (reset_type == KEEP)
+ err = err || reset_index_file(sha1, MIXED, quiet);
+ if (err)
+ die("Could not reset index file to revision '%s'.", rev);
}
- else if (reset_index_file(sha1, reset_type, quiet))
- die("Could not reset index file to revision '%s'.", rev);
/* Any resets update HEAD to the head being switched to,
* saving the previous head in ORIG_HEAD before. */