diff options
| -rw-r--r-- | Documentation/git-reset.txt | 29 | ||||
| -rw-r--r-- | builtin-reset.c | 26 |
2 files changed, 46 insertions, 9 deletions
diff --git a/Documentation/git-reset.txt b/Documentation/git-reset.txt index 2049f3d97b..abb25d1c00 100644 --- a/Documentation/git-reset.txt +++ b/Documentation/git-reset.txt @@ -8,7 +8,7 @@ git-reset - Reset current HEAD to the specified state SYNOPSIS -------- [verse] -'git reset' [--mixed | --soft | --hard] [-q] [<commit>] +'git reset' [--mixed | --soft | --hard | --merge] [-q] [<commit>] 'git reset' [-q] [<commit>] [--] <paths>... DESCRIPTION @@ -45,6 +45,11 @@ OPTIONS switched to. Any changes to tracked files in the working tree since <commit> are lost. +--merge:: + Resets the index to match the tree recorded by the named commit, + and updates the files that are different between the named commit + and the current commit in the working tree. + -q:: Be quiet, only report errors. @@ -152,6 +157,28 @@ tip of the current branch in ORIG_HEAD, so resetting hard to it brings your index file and the working tree back to that state, and resets the tip of the branch to that commit. +Undo a merge or pull inside a dirty work tree:: ++ +------------ +$ git pull <1> +Auto-merging nitfol +Merge made by recursive. + nitfol | 20 +++++---- + ... +$ git reset --merge ORIG_HEAD <2> +------------ ++ +<1> Even if you may have local modifications in your +working tree, you can safely say "git pull" when you know +that the change in the other branch does not overlap with +them. +<2> After inspecting the result of the merge, you may find +that the change in the other branch is unsatisfactory. Running +"git reset --hard ORIG_HEAD" will let you go back to where you +were, but it will discard your local changes, which you do not +want. "git reset --merge" keeps your local changes. + + Interrupted workflow:: + Suppose you are interrupted by an urgent fix request while you diff --git a/builtin-reset.c b/builtin-reset.c index 9514b77f8c..c0cb915c26 100644 --- a/builtin-reset.c +++ b/builtin-reset.c @@ -20,11 +20,14 @@ #include "parse-options.h" static const char * const git_reset_usage[] = { - "git reset [--mixed | --soft | --hard] [-q] [<commit>]", + "git reset [--mixed | --soft | --hard | --merge] [-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 }; + static char *args_to_str(const char **argv) { char *buf = NULL; @@ -49,7 +52,7 @@ static inline int is_merge(void) return !access(git_path("MERGE_HEAD"), F_OK); } -static int reset_index_file(const unsigned char *sha1, int is_hard_reset, int quiet) +static int reset_index_file(const unsigned char *sha1, int reset_type, int quiet) { int i = 0; const char *args[6]; @@ -57,9 +60,17 @@ static int reset_index_file(const unsigned char *sha1, int is_hard_reset, int qu args[i++] = "read-tree"; if (!quiet) args[i++] = "-v"; - args[i++] = "--reset"; - if (is_hard_reset) + switch (reset_type) { + case MERGE: args[i++] = "-u"; + args[i++] = "-m"; + break; + case HARD: + args[i++] = "-u"; + /* fallthrough */ + default: + args[i++] = "--reset"; + } args[i++] = sha1_to_hex(sha1); args[i] = NULL; @@ -169,9 +180,6 @@ static void prepend_reflog_action(const char *action, char *buf, size_t size) warning("Reflog action message too long: %.*s...", 50, buf); } -enum reset_type { MIXED, SOFT, HARD, NONE }; -static const char *reset_type_names[] = { "mixed", "soft", "hard", NULL }; - int cmd_reset(int argc, const char **argv, const char *prefix) { int i = 0, reset_type = NONE, update_ref_status = 0, quiet = 0; @@ -186,6 +194,8 @@ int cmd_reset(int argc, const char **argv, const char *prefix) OPT_SET_INT(0, "soft", &reset_type, "reset only HEAD", SOFT), OPT_SET_INT(0, "hard", &reset_type, "reset HEAD, index and working tree", HARD), + OPT_SET_INT(0, "merge", &reset_type, + "reset HEAD, index and working tree", MERGE), OPT_BOOLEAN('q', NULL, &quiet, "disable showing new HEAD in hard reset and progress message"), OPT_END() @@ -266,7 +276,7 @@ int cmd_reset(int argc, const char **argv, const char *prefix) if (is_merge() || read_cache() < 0 || unmerged_cache()) die("Cannot do a soft reset in the middle of a merge."); } - else if (reset_index_file(sha1, (reset_type == HARD), quiet)) + 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, |