i18n: git-pull add git-sh-i18n

[git.git] / builtin / merge.c

diff --git a/builtin/merge.c b/builtin/merge.c
index 1e0bcfd792e4fb550fea8786ff2f84e7925aca86..d171c63c52160f082bbc04c90ffebc9545090357 100644 (file)
--- a/builtin/merge.c
+++ b/builtin/merge.c
@@ -25,6 +25,7 @@
 #include "help.h"
 #include "merge-recursive.h"
 #include "resolve-undo.h"
+#include "remote.h"
 
 #define DEFAULT_TWOHEAD (1<<0)
 #define DEFAULT_OCTOPUS (1<<1)
@@ -37,8 +38,9 @@ struct strategy {
 };
 
 static const char * const builtin_merge_usage[] = {
-       "git merge [options] <remote>...",
-       "git merge [options] <msg> HEAD <remote>",
+       "git merge [options] [<commit>...]",
+       "git merge [options] <msg> HEAD <commit>",
+       "git merge --abort",
        NULL
 };
 
@@ -59,6 +61,7 @@ static int verbosity;
 static int allow_rerere_auto;
 static int abort_current_merge;
 static int show_progress = -1;
+static int default_to_upstream;
 
 static struct strategy all_strategy[] = {
        { "recursive",  DEFAULT_TWOHEAD | NO_TRIVIAL },
@@ -538,6 +541,9 @@ static int git_merge_config(const char *k, const char *v, void *cb)
                if (is_bool && shortlog_len)
                        shortlog_len = DEFAULT_MERGE_LOG_LEN;
                return 0;
+       } else if (!strcmp(k, "merge.defaulttoupstream")) {
+               default_to_upstream = git_config_bool(k, v);
+               return 0;
        }
        return git_diff_ui_config(k, v, cb);
 }
@@ -816,7 +822,7 @@ static void read_merge_msg(void)
 {
        strbuf_reset(&merge_msg);
        if (strbuf_read_file(&merge_msg, git_path("MERGE_MSG"), 0) < 0)
-               die_errno("Could not read from '%s'", git_path("MERGE_MSG"));
+               die_errno(_("Could not read from '%s'"), git_path("MERGE_MSG"));
 }
 
 static void run_prepare_commit_msg(void)
@@ -945,6 +951,35 @@ static int evaluate_result(void)
        return cnt;
 }
 
+/*
+ * Pretend as if the user told us to merge with the tracking
+ * branch we have for the upstream of the current branch
+ */
+static int setup_with_upstream(const char ***argv)
+{
+       struct branch *branch = branch_get(NULL);
+       int i;
+       const char **args;
+
+       if (!branch)
+               die(_("No current branch."));
+       if (!branch->remote)
+               die(_("No remote for the current branch."));
+       if (!branch->merge_nr)
+               die(_("No default upstream defined for the current branch."));
+
+       args = xcalloc(branch->merge_nr + 1, sizeof(char *));
+       for (i = 0; i < branch->merge_nr; i++) {
+               if (!branch->merge[i]->dst)
+                       die(_("No remote tracking branch for %s from %s"),
+                           branch->merge[i]->src, branch->remote_name);
+               args[i] = branch->merge[i]->dst;
+       }
+       args[i] = NULL;
+       *argv = args;
+       return i;
+}
+
 int cmd_merge(int argc, const char **argv, const char *prefix)
 {
        unsigned char result_tree[20];
@@ -1008,10 +1043,10 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
        }
        if (file_exists(git_path("CHERRY_PICK_HEAD"))) {
                if (advice_resolve_conflict)
-                       die("You have not concluded your cherry-pick (CHERRY_PICK_HEAD exists).\n"
-                           "Please, commit your changes before you can merge.");
+                       die(_("You have not concluded your cherry-pick (CHERRY_PICK_HEAD exists).\n"
+                           "Please, commit your changes before you can merge."));
                else
-                       die("You have not concluded your cherry-pick (CHERRY_PICK_HEAD exists).");
+                       die(_("You have not concluded your cherry-pick (CHERRY_PICK_HEAD exists)."));
        }
        resolve_undo_clear();
 
@@ -1027,6 +1062,12 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
        if (!allow_fast_forward && fast_forward_only)
                die(_("You cannot combine --no-ff with --ff-only."));
 
+       if (!abort_current_merge) {
+               if (!argc && default_to_upstream)
+                       argc = setup_with_upstream(&argv);
+               else if (argc == 1 && !strcmp(argv[0], "-"))
+                       argv[0] = "@{-1}";
+       }
        if (!argc)
                usage_with_options(builtin_merge_usage,
                        builtin_merge_options);