mergetool--lib: add support for araxis merge

diff --git a/builtin-checkout.c b/builtin-checkout.c
index fc55bbe14d58df66e71a9e1975bb7c4eecdc1a49..15f0c32c7a7ed62afe31e3bafb2d7306ba4a3402 100644 (file)
--- a/builtin-checkout.c
+++ b/builtin-checkout.c
@@ -5,6 +5,7 @@
 #include "commit.h"
 #include "tree.h"
 #include "tree-walk.h"
+#include "cache-tree.h"
 #include "unpack-trees.h"
 #include "dir.h"
 #include "run-command.h"
@@ -53,9 +54,6 @@ static int update_some(const unsigned char *sha1, const char *base, int baselen,
        int len;
        struct cache_entry *ce;
 
-       if (S_ISGITLINK(mode))
-               return 0;
-
        if (S_ISDIR(mode))
                return READ_TREE_RECURSIVE;
 
@@ -181,7 +179,7 @@ static int checkout_merged(int pos, struct checkout *state)
        /*
         * NEEDSWORK:
         * There is absolutely no reason to write this as a blob object
-        * and create a phoney cache entry just to leak.  This hack is
+        * and create a phony cache entry just to leak.  This hack is
         * primarily to get to the write_entry() machinery that massages
         * the contents to work-tree format and writes out which only
         * allows it for a cache entry.  The code in write_entry() needs
@@ -353,16 +351,11 @@ struct branch_info {
 static void setup_branch_path(struct branch_info *branch)
 {
        struct strbuf buf = STRBUF_INIT;
-       int ret;
 
-       if ((ret = interpret_nth_last_branch(branch->name, &buf))
-           && ret == strlen(branch->name)) {
+       strbuf_branchname(&buf, branch->name);
+       if (strcmp(buf.buf, branch->name))
                branch->name = xstrdup(buf.buf);
-               strbuf_splice(&buf, 0, 0, "refs/heads/", 11);
-       } else {
-               strbuf_addstr(&buf, "refs/heads/");
-               strbuf_addstr(&buf, branch->name);
-       }
+       strbuf_splice(&buf, 0, 0, "refs/heads/", 11);
        branch->path = strbuf_detach(&buf, NULL);
 }
 
@@ -372,14 +365,17 @@ static int merge_working_tree(struct checkout_opts *opts,
        int ret;
        struct lock_file *lock_file = xcalloc(1, sizeof(struct lock_file));
        int newfd = hold_locked_index(lock_file, 1);
+       int reprime_cache_tree = 0;
 
        if (read_cache() < 0)
                return error("corrupt index file");
 
+       cache_tree_free(&active_cache_tree);
        if (opts->force) {
                ret = reset_tree(new->commit->tree, opts, 1);
                if (ret)
                        return ret;
+               reprime_cache_tree = 1;
        } else {
                struct tree_desc trees[2];
                struct tree *tree;
@@ -415,7 +411,9 @@ static int merge_working_tree(struct checkout_opts *opts,
                init_tree_desc(&trees[1], tree->buffer, tree->size);
 
                ret = unpack_trees(2, trees, &topts);
-               if (ret == -1) {
+               if (ret != -1) {
+                       reprime_cache_tree = 1;
+               } else {
                        /*
                         * Unpack couldn't do a trivial merge; either
                         * give up or do a real merge, depending on
@@ -459,6 +457,8 @@ static int merge_working_tree(struct checkout_opts *opts,
                }
        }
 
+       if (reprime_cache_tree)
+               prime_cache_tree(&active_cache_tree, new->commit->tree);
        if (write_cache(newfd, active_cache, active_nr) ||
            commit_locked_index(lock_file))
                die("unable to write new index file");
@@ -503,10 +503,10 @@ static void update_refs_for_switch(struct checkout_opts *opts,
                create_symref("HEAD", new->path, msg.buf);
                if (!opts->quiet) {
                        if (old->path && !strcmp(new->path, old->path))
-                               fprintf(stderr, "Already on \"%s\"\n",
+                               fprintf(stderr, "Already on '%s'\n",
                                        new->name);
                        else
-                               fprintf(stderr, "Switched to%s branch \"%s\"\n",
+                               fprintf(stderr, "Switched to%s branch '%s'\n",
                                        opts->new_branch ? " a new" : "",
                                        new->name);
                }
@@ -515,7 +515,7 @@ static void update_refs_for_switch(struct checkout_opts *opts,
                           REF_NODEREF, DIE_ON_ERR);
                if (!opts->quiet) {
                        if (old->path)
-                               fprintf(stderr, "Note: moving to \"%s\" which isn't a local branch\nIf you want to create a new branch from this checkout, you may do so\n(now or later) by using -b with the checkout command again. Example:\n  git checkout -b <new_branch_name>\n", new->name);
+                               fprintf(stderr, "Note: moving to '%s' which isn't a local branch\nIf you want to create a new branch from this checkout, you may do so\n(now or later) by using -b with the checkout command again. Example:\n  git checkout -b <new_branch_name>\n", new->name);
                        describe_detached_head("HEAD is now at", new->commit);
                }
        }
@@ -738,12 +738,11 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
 
        if (opts.new_branch) {
                struct strbuf buf = STRBUF_INIT;
-               strbuf_addstr(&buf, "refs/heads/");
-               strbuf_addstr(&buf, opts.new_branch);
+               if (strbuf_check_branch_ref(&buf, opts.new_branch))
+                       die("git checkout: we do not like '%s' as a branch name.",
+                           opts.new_branch);
                if (!get_sha1(buf.buf, rev))
                        die("git checkout: branch %s already exists", opts.new_branch);
-               if (check_ref_format(buf.buf))
-                       die("git checkout: we do not like '%s' as a branch name.", opts.new_branch);
                strbuf_release(&buf);
        }