From 878056005e94f5fea00c9ff8999f30a99bf10cae Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ren=C3=A9=20Scharfe?= Date: Thu, 22 Feb 2018 20:29:25 +0100 Subject: sequencer: factor out strbuf_read_file_or_whine() Reduce code duplication by factoring out a function that reads an entire file into a strbuf, or reports errors on stderr if something goes wrong. Signed-off-by: Rene Scharfe Signed-off-by: Junio C Hamano --- sequencer.c | 74 +++++++++++++++++++++++-------------------------------------- 1 file changed, 28 insertions(+), 46 deletions(-) diff --git a/sequencer.c b/sequencer.c index f2a10cc4f2..c31d48b7b8 100644 --- a/sequencer.c +++ b/sequencer.c @@ -1333,22 +1333,31 @@ static int count_commands(struct todo_list *todo_list) return count; } +static ssize_t strbuf_read_file_or_whine(struct strbuf *sb, const char *path) +{ + int fd; + ssize_t len; + + fd = open(path, O_RDONLY); + if (fd < 0) + return error_errno(_("could not open '%s'"), path); + len = strbuf_read(sb, fd, 0); + close(fd); + if (len < 0) + return error(_("could not read '%s'."), path); + return len; +} + static int read_populate_todo(struct todo_list *todo_list, struct replay_opts *opts) { struct stat st; const char *todo_file = get_todo_path(opts); - int fd, res; + int res; strbuf_reset(&todo_list->buf); - fd = open(todo_file, O_RDONLY); - if (fd < 0) - return error_errno(_("could not open '%s'"), todo_file); - if (strbuf_read(&todo_list->buf, fd, 0) < 0) { - close(fd); - return error(_("could not read '%s'."), todo_file); - } - close(fd); + if (strbuf_read_file_or_whine(&todo_list->buf, todo_file) < 0) + return -1; res = stat(todo_file, &st); if (res) @@ -2575,20 +2584,13 @@ int check_todo_list(void) struct strbuf todo_file = STRBUF_INIT; struct todo_list todo_list = TODO_LIST_INIT; struct strbuf missing = STRBUF_INIT; - int advise_to_edit_todo = 0, res = 0, fd, i; + int advise_to_edit_todo = 0, res = 0, i; strbuf_addstr(&todo_file, rebase_path_todo()); - fd = open(todo_file.buf, O_RDONLY); - if (fd < 0) { - res = error_errno(_("could not open '%s'"), todo_file.buf); - goto leave_check; - } - if (strbuf_read(&todo_list.buf, fd, 0) < 0) { - close(fd); - res = error(_("could not read '%s'."), todo_file.buf); + if (strbuf_read_file_or_whine(&todo_list.buf, todo_file.buf) < 0) { + res = -1; goto leave_check; } - close(fd); advise_to_edit_todo = res = parse_insn_buffer(todo_list.buf.buf, &todo_list); @@ -2604,17 +2606,10 @@ int check_todo_list(void) todo_list_release(&todo_list); strbuf_addstr(&todo_file, ".backup"); - fd = open(todo_file.buf, O_RDONLY); - if (fd < 0) { - res = error_errno(_("could not open '%s'"), todo_file.buf); - goto leave_check; - } - if (strbuf_read(&todo_list.buf, fd, 0) < 0) { - close(fd); - res = error(_("could not read '%s'."), todo_file.buf); + if (strbuf_read_file_or_whine(&todo_list.buf, todo_file.buf) < 0) { + res = -1; goto leave_check; } - close(fd); strbuf_release(&todo_file); res = !!parse_insn_buffer(todo_list.buf.buf, &todo_list); @@ -2682,15 +2677,8 @@ int skip_unnecessary_picks(void) } strbuf_release(&buf); - fd = open(todo_file, O_RDONLY); - if (fd < 0) { - return error_errno(_("could not open '%s'"), todo_file); - } - if (strbuf_read(&todo_list.buf, fd, 0) < 0) { - close(fd); - return error(_("could not read '%s'."), todo_file); - } - close(fd); + if (strbuf_read_file_or_whine(&todo_list.buf, todo_file) < 0) + return -1; if (parse_insn_buffer(todo_list.buf.buf, &todo_list) < 0) { todo_list_release(&todo_list); return -1; @@ -2799,17 +2787,11 @@ int rearrange_squash(void) const char *todo_file = rebase_path_todo(); struct todo_list todo_list = TODO_LIST_INIT; struct hashmap subject2item; - int res = 0, rearranged = 0, *next, *tail, fd, i; + int res = 0, rearranged = 0, *next, *tail, i; char **subjects; - fd = open(todo_file, O_RDONLY); - if (fd < 0) - return error_errno(_("could not open '%s'"), todo_file); - if (strbuf_read(&todo_list.buf, fd, 0) < 0) { - close(fd); - return error(_("could not read '%s'."), todo_file); - } - close(fd); + if (strbuf_read_file_or_whine(&todo_list.buf, todo_file) < 0) + return -1; if (parse_insn_buffer(todo_list.buf.buf, &todo_list) < 0) { todo_list_release(&todo_list); return -1; -- cgit v1.2.1