prepare_revision_walk(): check for return value in all places

diff --git a/config.c b/config.c
index 314d8ee740bea488d8c79d80b3d91530ad15252d..2634457f6b07ca55b69f3b4a22b8a9e4339fd121 100644 (file)
--- a/config.c
+++ b/config.c
@@ -21,6 +21,7 @@ struct config_source {
                } buf;
        } u;
        const char *name;
+       const char *path;
        int die_on_error;
        int linenr;
        int eof;
@@ -101,12 +102,12 @@ static int handle_path_include(const char *path, struct config_include_data *inc
        if (!is_absolute_path(path)) {
                char *slash;
 
-               if (!cf || !cf->name)
+               if (!cf || !cf->path)
                        return error("relative config includes must come from files");
 
-               slash = find_last_dir_sep(cf->name);
+               slash = find_last_dir_sep(cf->path);
                if (slash)
-                       strbuf_add(&buf, cf->name, slash - cf->name + 1);
+                       strbuf_add(&buf, cf->path, slash - cf->path + 1);
                strbuf_addstr(&buf, path);
                path = buf.buf;
        }
@@ -556,6 +557,7 @@ int git_parse_ulong(const char *value, unsigned long *ret)
        return 1;
 }
 
+NORETURN
 static void die_bad_number(const char *name, const char *value)
 {
        const char *reason = errno == ERANGE ?
@@ -667,20 +669,7 @@ static int git_default_core_config(const char *var, const char *value)
                trust_ctime = git_config_bool(var, value);
                return 0;
        }
-       if (!strcmp(var, "core.statinfo") ||
-           !strcmp(var, "core.checkstat")) {
-               /*
-                * NEEDSWORK: statinfo was a typo in v1.8.2 that has
-                * never been advertised.  we will remove it at Git
-                * 2.0 boundary.
-                */
-               if (!strcmp(var, "core.statinfo")) {
-                       static int warned;
-                       if (!warned++) {
-                               warning("'core.statinfo' will be removed in Git 2.0; "
-                                       "use 'core.checkstat' instead.");
-                       }
-               }
+       if (!strcmp(var, "core.checkstat")) {
                if (!strcasecmp(value, "default"))
                        check_stat = 1;
                else if (!strcasecmp(value, "minimal"))
@@ -963,7 +952,7 @@ static int git_default_push_config(const char *var, const char *value)
 static int git_default_mailmap_config(const char *var, const char *value)
 {
        if (!strcmp(var, "mailmap.file"))
-               return git_config_string(&git_mailmap_file, var, value);
+               return git_config_pathname(&git_mailmap_file, var, value);
        if (!strcmp(var, "mailmap.blob"))
                return git_config_string(&git_mailmap_blob, var, value);
 
@@ -1034,24 +1023,35 @@ static int do_config_from(struct config_source *top, config_fn_t fn, void *data)
        return ret;
 }
 
-int git_config_from_file(config_fn_t fn, const char *filename, void *data)
+static int do_config_from_file(config_fn_t fn,
+               const char *name, const char *path, FILE *f, void *data)
 {
-       int ret;
-       FILE *f = fopen(filename, "r");
+       struct config_source top;
 
-       ret = -1;
-       if (f) {
-               struct config_source top;
+       top.u.file = f;
+       top.name = name;
+       top.path = path;
+       top.die_on_error = 1;
+       top.do_fgetc = config_file_fgetc;
+       top.do_ungetc = config_file_ungetc;
+       top.do_ftell = config_file_ftell;
 
-               top.u.file = f;
-               top.name = filename;
-               top.die_on_error = 1;
-               top.do_fgetc = config_file_fgetc;
-               top.do_ungetc = config_file_ungetc;
-               top.do_ftell = config_file_ftell;
+       return do_config_from(&top, fn, data);
+}
+
+static int git_config_from_stdin(config_fn_t fn, void *data)
+{
+       return do_config_from_file(fn, "<stdin>", NULL, stdin, data);
+}
 
-               ret = do_config_from(&top, fn, data);
+int git_config_from_file(config_fn_t fn, const char *filename, void *data)
+{
+       int ret = -1;
+       FILE *f;
 
+       f = fopen(filename, "r");
+       if (f) {
+               ret = do_config_from_file(fn, filename, filename, f, data);
                fclose(f);
        }
        return ret;
@@ -1066,6 +1066,7 @@ int git_config_from_buf(config_fn_t fn, const char *name, const char *buf,
        top.u.buf.len = len;
        top.u.buf.pos = 0;
        top.name = name;
+       top.path = NULL;
        top.die_on_error = 0;
        top.do_fgetc = config_buf_fgetc;
        top.do_ungetc = config_buf_ungetc;
@@ -1174,8 +1175,7 @@ int git_config_early(config_fn_t fn, void *data, const char *repo_config)
 }
 
 int git_config_with_options(config_fn_t fn, void *data,
-                           const char *filename,
-                           const char *blob_ref,
+                           struct git_config_source *config_source,
                            int respect_includes)
 {
        char *repo_config = NULL;
@@ -1193,10 +1193,12 @@ int git_config_with_options(config_fn_t fn, void *data,
         * If we have a specific filename, use it. Otherwise, follow the
         * regular lookup sequence.
         */
-       if (filename)
-               return git_config_from_file(fn, filename, data);
-       else if (blob_ref)
-               return git_config_from_blob_ref(fn, blob_ref, data);
+       if (config_source && config_source->use_stdin)
+               return git_config_from_stdin(fn, data);
+       else if (config_source && config_source->file)
+               return git_config_from_file(fn, config_source->file, data);
+       else if (config_source && config_source->blob)
+               return git_config_from_blob_ref(fn, config_source->blob, data);
 
        repo_config = git_pathdup("config");
        ret = git_config_early(fn, data, repo_config);
@@ -1207,7 +1209,7 @@ int git_config_with_options(config_fn_t fn, void *data,
 
 int git_config(config_fn_t fn, void *data)
 {
-       return git_config_with_options(fn, data, NULL, NULL, 1);
+       return git_config_with_options(fn, data, NULL, 1);
 }
 
 /*
@@ -1536,7 +1538,7 @@ int git_config_set_multivar_in_file(const char *config_filename,
         * The lock serves a purpose in addition to locking: the new
         * contents of .git/config will be written into it.
         */
-       lock = xcalloc(sizeof(struct lock_file), 1);
+       lock = xcalloc(1, sizeof(struct lock_file));
        fd = hold_lock_file_for_update(lock, config_filename, 0);
        if (fd < 0) {
                error("could not lock config file %s: %s", config_filename, strerror(errno));
@@ -1791,7 +1793,7 @@ int git_config_rename_section_in_file(const char *config_filename,
        if (!config_filename)
                config_filename = filename_buf = git_pathdup("config");
 
-       lock = xcalloc(sizeof(struct lock_file), 1);
+       lock = xcalloc(1, sizeof(struct lock_file));
        out_fd = hold_lock_file_for_update(lock, config_filename, 0);
        if (out_fd < 0) {
                ret = error("could not lock config file %s", config_filename);