use new wrapper write_file() for simple file writing

diff --git a/builtin/checkout.c b/builtin/checkout.c
index f71e74531d2a7d195ff2987f6dca3c69c636aa7c..195aca7257fe2a6b52fbee5f21f5ad785be57991 100644 (file)
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -1,5 +1,5 @@
-#include "cache.h"
 #include "builtin.h"
+#include "lockfile.h"
 #include "parse-options.h"
 #include "refs.h"
 #include "commit.h"
@@ -355,7 +355,7 @@ static int checkout_paths(const struct checkout_opts *opts,
        if (write_locked_index(&the_index, lock_file, COMMIT_LOCK))
                die(_("unable to write new index file"));
 
-       read_ref_full("HEAD", rev, 0, &flag);
+       read_ref_full("HEAD", 0, rev, &flag);
        head = lookup_commit_reference_gently(rev, 1);
 
        errs |= post_checkout_hook(head, head, 0);
@@ -552,6 +552,12 @@ static int merge_working_tree(const struct checkout_opts *opts,
                }
        }
 
+       if (!active_cache_tree)
+               active_cache_tree = cache_tree();
+
+       if (!cache_tree_fully_valid(active_cache_tree))
+               cache_tree_update(&the_index, WRITE_TREE_SILENT | WRITE_TREE_REPAIR);
+
        if (write_locked_index(&the_index, lock_file, COMMIT_LOCK))
                die(_("unable to write new index file"));
 
@@ -582,18 +588,21 @@ static void update_refs_for_switch(const struct checkout_opts *opts,
                if (opts->new_orphan_branch) {
                        if (opts->new_branch_log && !log_all_ref_updates) {
                                int temp;
-                               char log_file[PATH_MAX];
-                               char *ref_name = mkpath("refs/heads/%s", opts->new_orphan_branch);
+                               struct strbuf log_file = STRBUF_INIT;
+                               int ret;
+                               const char *ref_name;
 
+                               ref_name = mkpath("refs/heads/%s", opts->new_orphan_branch);
                                temp = log_all_ref_updates;
                                log_all_ref_updates = 1;
-                               if (log_ref_setup(ref_name, log_file, sizeof(log_file))) {
+                               ret = log_ref_setup(ref_name, &log_file);
+                               log_all_ref_updates = temp;
+                               strbuf_release(&log_file);
+                               if (ret) {
                                        fprintf(stderr, _("Can not do reflog for '%s'\n"),
                                            opts->new_orphan_branch);
-                                       log_all_ref_updates = temp;
                                        return;
                                }
-                               log_all_ref_updates = temp;
                        }
                }
                else
@@ -769,7 +778,7 @@ static int switch_branches(const struct checkout_opts *opts,
        unsigned char rev[20];
        int flag, writeout_error = 0;
        memset(&old, 0, sizeof(old));
-       old.path = path_to_free = resolve_refdup("HEAD", rev, 0, &flag);
+       old.path = path_to_free = resolve_refdup("HEAD", 0, rev, &flag);
        old.commit = lookup_commit_reference_gently(rev, 1);
        if (!(flag & REF_ISSYMREF))
                old.path = NULL;
@@ -1066,7 +1075,7 @@ static int checkout_branch(struct checkout_opts *opts,
                unsigned char rev[20];
                int flag;
 
-               if (!read_ref_full("HEAD", rev, 0, &flag) &&
+               if (!read_ref_full("HEAD", 0, rev, &flag) &&
                    (flag & REF_ISSYMREF) && is_null_sha1(rev))
                        return switch_unborn_to_new_branch(opts);
        }
@@ -1144,10 +1153,8 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
                const char *argv0 = argv[0];
                if (!argc || !strcmp(argv0, "--"))
                        die (_("--track needs a branch name"));
-               if (starts_with(argv0, "refs/"))
-                       argv0 += 5;
-               if (starts_with(argv0, "remotes/"))
-                       argv0 += 8;
+               skip_prefix(argv0, "refs/", &argv0);
+               skip_prefix(argv0, "remotes/", &argv0);
                argv0 = strchr(argv0, '/');
                if (!argv0 || !argv0[1])
                        die (_("Missing branch name; try -b"));