From a2b4994c826b40b42f395824dcadc082df77959b Mon Sep 17 00:00:00 2001 From: =?utf8?q?Nguy=E1=BB=85n=20Th=C3=A1i=20Ng=E1=BB=8Dc=20Duy?= Date: Wed, 29 Aug 2012 20:55:22 +0700 Subject: [PATCH] checkout: pass "struct checkout_opts *" as const pointer MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit This struct contains various switches to system and it feels somewhat safer to have the compiler reassure us that nowhere else changes it. One field that is changed, writeout_error, is split out and passed as another argument. Signed-off-by: Nguyễn Thái Ngọc Duy Signed-off-by: Junio C Hamano --- builtin/checkout.c | 37 +++++++++++++++++++++---------------- 1 file changed, 21 insertions(+), 16 deletions(-) diff --git a/builtin/checkout.c b/builtin/checkout.c index 7d922c612a..3e3f086590 100644 --- a/builtin/checkout.c +++ b/builtin/checkout.c @@ -33,7 +33,6 @@ struct checkout_opts { int force; int force_detach; int writeout_stage; - int writeout_error; int overwrite_ignore; /* not set by parse_options */ @@ -216,7 +215,7 @@ static int checkout_merged(int pos, struct checkout *state) } static int checkout_paths(struct tree *source_tree, const char **pathspec, - const char *prefix, struct checkout_opts *opts) + const char *prefix, const struct checkout_opts *opts) { int pos; struct checkout state; @@ -309,7 +308,8 @@ static int checkout_paths(struct tree *source_tree, const char **pathspec, return errs; } -static void show_local_changes(struct object *head, struct diff_options *opts) +static void show_local_changes(struct object *head, + const struct diff_options *opts) { struct rev_info rev; /* I think we want full paths, even if we're in a subdirectory. */ @@ -331,7 +331,8 @@ static void describe_detached_head(const char *msg, struct commit *commit) strbuf_release(&sb); } -static int reset_tree(struct tree *tree, struct checkout_opts *o, int worktree) +static int reset_tree(struct tree *tree, const struct checkout_opts *o, + int worktree, int *writeout_error) { struct unpack_trees_options opts; struct tree_desc tree_desc; @@ -350,7 +351,7 @@ static int reset_tree(struct tree *tree, struct checkout_opts *o, int worktree) init_tree_desc(&tree_desc, tree->buffer, tree->size); switch (unpack_trees(1, &tree_desc, &opts)) { case -2: - o->writeout_error = 1; + *writeout_error = 1; /* * We return 0 nevertheless, as the index is all right * and more importantly we have made best efforts to @@ -381,8 +382,10 @@ static void setup_branch_path(struct branch_info *branch) branch->path = strbuf_detach(&buf, NULL); } -static int merge_working_tree(struct checkout_opts *opts, - struct branch_info *old, struct branch_info *new) +static int merge_working_tree(const struct checkout_opts *opts, + struct branch_info *old, + struct branch_info *new, + int *writeout_error) { int ret; struct lock_file *lock_file = xcalloc(1, sizeof(struct lock_file)); @@ -393,7 +396,7 @@ static int merge_working_tree(struct checkout_opts *opts, resolve_undo_clear(); if (opts->force) { - ret = reset_tree(new->commit->tree, opts, 1); + ret = reset_tree(new->commit->tree, opts, 1, writeout_error); if (ret) return ret; } else { @@ -479,7 +482,8 @@ static int merge_working_tree(struct checkout_opts *opts, o.verbosity = 0; work = write_tree_from_memory(&o); - ret = reset_tree(new->commit->tree, opts, 1); + ret = reset_tree(new->commit->tree, opts, 1, + writeout_error); if (ret) return ret; o.ancestor = old->name; @@ -487,7 +491,8 @@ static int merge_working_tree(struct checkout_opts *opts, o.branch2 = "local"; merge_trees(&o, new->commit->tree, work, old->commit->tree, &result); - ret = reset_tree(new->commit->tree, opts, 0); + ret = reset_tree(new->commit->tree, opts, 0, + writeout_error); if (ret) return ret; } @@ -514,7 +519,7 @@ static void report_tracking(struct branch_info *new) strbuf_release(&sb); } -static void update_refs_for_switch(struct checkout_opts *opts, +static void update_refs_for_switch(const struct checkout_opts *opts, struct branch_info *old, struct branch_info *new) { @@ -701,13 +706,13 @@ static void orphaned_commit_warning(struct commit *old, struct commit *new) free(refs.objects); } -static int switch_branches(struct checkout_opts *opts, struct branch_info *new) +static int switch_branches(const struct checkout_opts *opts, struct branch_info *new) { int ret = 0; struct branch_info old; void *path_to_free; unsigned char rev[20]; - int flag; + int flag, writeout_error = 0; memset(&old, 0, sizeof(old)); old.path = path_to_free = resolve_refdup("HEAD", rev, 0, &flag); old.commit = lookup_commit_reference_gently(rev, 1); @@ -725,7 +730,7 @@ static int switch_branches(struct checkout_opts *opts, struct branch_info *new) parse_commit(new->commit); } - ret = merge_working_tree(opts, &old, new); + ret = merge_working_tree(opts, &old, new, &writeout_error); if (ret) { free(path_to_free); return ret; @@ -738,7 +743,7 @@ static int switch_branches(struct checkout_opts *opts, struct branch_info *new) ret = post_checkout_hook(old.commit, new->commit, 1); free(path_to_free); - return ret || opts->writeout_error; + return ret || writeout_error; } static int git_checkout_config(const char *var, const char *value, void *cb) @@ -910,7 +915,7 @@ static int parse_branchname_arg(int argc, const char **argv, return argcount; } -static int switch_unborn_to_new_branch(struct checkout_opts *opts) +static int switch_unborn_to_new_branch(const struct checkout_opts *opts) { int status; struct strbuf branch_ref = STRBUF_INIT; -- 2.11.4.GIT