From patchwork Tue Oct 30 10:39:15 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Phillip Wood X-Patchwork-Id: 10660651 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 7EF571734 for ; Tue, 30 Oct 2018 10:39:31 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 68F7A29EEA for ; Tue, 30 Oct 2018 10:39:31 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 5C97B29F2A; Tue, 30 Oct 2018 10:39:31 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0E5F129EEA for ; Tue, 30 Oct 2018 10:39:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727556AbeJ3TcX (ORCPT ); Tue, 30 Oct 2018 15:32:23 -0400 Received: from smtp-out-5.talktalk.net ([62.24.135.69]:31456 "EHLO smtp-out-5.talktalk.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727529AbeJ3TcX (ORCPT ); Tue, 30 Oct 2018 15:32:23 -0400 Received: from lindisfarne.localdomain ([92.22.32.73]) by smtp.talktalk.net with SMTP id HRQbg5GIzdJAeHRQjgS6N1; Tue, 30 Oct 2018 10:39:26 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=talktalk.net; s=cmr1711; t=1540895966; bh=2RJR+U3FpS3hEGJo3oC44K6LdjAw0TYYMsjZ8QIwN+U=; h=From:To:Cc:Subject:Date:In-Reply-To:References:Reply-To; b=eNz0/o6UEIXUWLAnQPVZe2SbrTO+rsmY4FT/Hz+SJDT+6HYUd3PHL77obOphoZL85 NXev43NMXTFqgUNF+v7Y+E8khRiWWXZ2x28Tv3O1bqolyzry2tCE9BRQq0/KGUBHi1 mu3RoRFFZEtwuE3N+yFkG8oB8Rwue/htp1U0OwwA= X-Originating-IP: [92.22.32.73] X-Spam: 0 X-OAuthority: v=2.3 cv=V8BTL9vi c=1 sm=1 tr=0 a=w3K0eKD2tyZHkEydg3BQCA==:117 a=w3K0eKD2tyZHkEydg3BQCA==:17 a=evINK-nbAAAA:8 a=ptTNLviJEnKM3T6GpPoA:9 a=k2_1p6PUbCVEKFBt:21 a=VGg1cHLJUown9a68:21 a=RfR_gqz1fSpA9VikTjo0:22 a=pHzHmUro8NiASowvMSCR:22 a=nt3jZW36AmriUCFCBwmW:22 From: Phillip Wood To: Git Mailing List , Junio C Hamano Cc: Eric Sunshine , Johannes Schindelin , Phillip Wood Subject: [PATCH v3 4/5] add read_author_script() to libgit Date: Tue, 30 Oct 2018 10:39:15 +0000 Message-Id: <20181030103916.6241-5-phillip.wood@talktalk.net> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20181030103916.6241-1-phillip.wood@talktalk.net> References: <20180912101029.28052-1-phillip.wood@talktalk.net> <20181030103916.6241-1-phillip.wood@talktalk.net> MIME-Version: 1.0 Reply-To: Phillip Wood X-CMAE-Envelope: MS4wfIhW44sJHgmCWlHLTqmNEFHAkETef7oAqgeLze42SXCAthVohqaGV6KBGC7Q1cSi0vWCvPlBsFDoM9QVvCSnlROAzO37FNxu9fweOqAojCR6odBjxC7L d/6EufXrvuHoxk8iqT5U7pojJi/GnDJYh53Kk21sj99gewxWyGMR30nFwABkfMqXDGAGADlhb2AX77zKQUSaeUftqIphiGJy9y5qMqDQpb9TtBVEZiL1E/+U Q1ydxHc1GDIWK5oJHIexwV0KkCpxA0WCpSw6IJRYUyLFHhN+zDdjo5coPzgV1s8RaZ4fDIPXdb6099ZcOgz++0bLguuzktOeGjdmookHcms= Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Phillip Wood Add read_author_script() to sequencer.c based on the implementation in builtin/am.c and update read_am_author_script() to use read_author_script(). The sequencer code that reads the author script will be updated in the next commit. Signed-off-by: Phillip Wood --- Notes: changes since v1: - added comment above read_author_script() - rebased to reflect changes added in patch 2 builtin/am.c | 86 +---------------------------------------- sequencer.c | 105 +++++++++++++++++++++++++++++++++++++++++++++++++++ sequencer.h | 3 ++ 3 files changed, 110 insertions(+), 84 deletions(-) diff --git a/builtin/am.c b/builtin/am.c index 991d13f9a2..c5373158c0 100644 --- a/builtin/am.c +++ b/builtin/am.c @@ -260,36 +260,6 @@ static int read_state_file(struct strbuf *sb, const struct am_state *state, die_errno(_("could not read '%s'"), am_path(state, file)); } -/** - * Take a series of KEY='VALUE' lines where VALUE part is - * sq-quoted, and append at the end of the string list - */ -static int parse_key_value_squoted(char *buf, struct string_list *list) -{ - while (*buf) { - struct string_list_item *item; - char *np; - char *cp = strchr(buf, '='); - if (!cp) { - np = strchrnul(buf, '\n'); - return error(_("unable to parse '%.*s'"), - (int) (np - buf), buf); - } - np = strchrnul(cp, '\n'); - *cp++ = '\0'; - item = string_list_append(list, buf); - - buf = np + (*np == '\n'); - *np = '\0'; - cp = sq_dequote(cp); - if (!cp) - return error(_("unable to dequote value of '%s'"), - item->string); - item->util = xstrdup(cp); - } - return 0; -} - /** * Reads and parses the state directory's "author-script" file, and sets * state->author_name, state->author_email and state->author_date accordingly. @@ -309,65 +279,13 @@ static int parse_key_value_squoted(char *buf, struct string_list *list) static int read_am_author_script(struct am_state *state) { const char *filename = am_path(state, "author-script"); - struct strbuf buf = STRBUF_INIT; - struct string_list kv = STRING_LIST_INIT_DUP; - int retval = -1; /* assume failure */ - int i, name_i = -2, email_i = -2, date_i = -2, err = 0; - int fd; assert(!state->author_name); assert(!state->author_email); assert(!state->author_date); - fd = open(filename, O_RDONLY); - if (fd < 0) { - if (errno == ENOENT) - return 0; - return error_errno(_("could not open '%s' for reading"), - filename); - } - strbuf_read(&buf, fd, 0); - close(fd); - if (parse_key_value_squoted(buf.buf, &kv)) - goto finish; - - for (i = 0; i < kv.nr; i++) { - if (!strcmp(kv.items[i].string, "GIT_AUTHOR_NAME")) { - if (name_i >= 0) - name_i = error(_("'GIT_AUTHOR_NAME' already given")); - else - name_i = i; - } else if (!strcmp(kv.items[i].string, "GIT_AUTHOR_EMAIL")) { - if (email_i >= 0) - email_i = error(_("'GIT_AUTHOR_EMAIL' already given")); - else - email_i = i; - } else if (!strcmp(kv.items[i].string, "GIT_AUTHOR_DATE")) { - if (date_i >= 0) - date_i = error(_("'GIT_AUTHOR_DATE' already given")); - else - date_i = i; - } else { - err = error(_("unknown variable '%s'"), - kv.items[i].string); - } - } - if (name_i == -2) - error(_("missing 'GIT_AUTHOR_NAME'")); - if (email_i == -2) - error(_("missing 'GIT_AUTHOR_EMAIL'")); - if (date_i == -2) - error(_("missing 'GIT_AUTHOR_DATE'")); - if (date_i < 0 || email_i < 0 || date_i < 0 || err) - goto finish; - state->author_name = kv.items[name_i].util; - state->author_email = kv.items[email_i].util; - state->author_date = kv.items[date_i].util; - retval = 0; -finish: - string_list_clear(&kv, !!retval); - strbuf_release(&buf); - return retval; + return read_author_script(filename, &state->author_name, + &state->author_email, &state->author_date, 1); } /** diff --git a/sequencer.c b/sequencer.c index dc2c58d464..3530dbeb6c 100644 --- a/sequencer.c +++ b/sequencer.c @@ -660,6 +660,111 @@ static int write_author_script(const char *message) return res; } +/** + * Take a series of KEY='VALUE' lines where VALUE part is + * sq-quoted, and append at the end of the string list + */ +static int parse_key_value_squoted(char *buf, struct string_list *list) +{ + while (*buf) { + struct string_list_item *item; + char *np; + char *cp = strchr(buf, '='); + if (!cp) { + np = strchrnul(buf, '\n'); + return error(_("unable to parse '%.*s'"), + (int) (np - buf), buf); + } + np = strchrnul(cp, '\n'); + *cp++ = '\0'; + item = string_list_append(list, buf); + + buf = np + (*np == '\n'); + *np = '\0'; + cp = sq_dequote(cp); + if (!cp) + return error(_("unable to dequote value of '%s'"), + item->string); + item->util = xstrdup(cp); + } + return 0; +} + +/** + * Reads and parses the state directory's "author-script" file, and sets name, + * email and date accordingly. + * Returns 0 on success, -1 if the file could not be parsed. + * + * The author script is of the format: + * + * GIT_AUTHOR_NAME='$author_name' + * GIT_AUTHOR_EMAIL='$author_email' + * GIT_AUTHOR_DATE='$author_date' + * + * where $author_name, $author_email and $author_date are quoted. We are strict + * with our parsing, as the file was meant to be eval'd in the old + * git-am.sh/git-rebase--interactive.sh scripts, and thus if the file differs + * from what this function expects, it is better to bail out than to do + * something that the user does not expect. + */ +int read_author_script(const char *path, char **name, char **email, char **date, + int allow_missing) +{ + struct strbuf buf = STRBUF_INIT; + struct string_list kv = STRING_LIST_INIT_DUP; + int retval = -1; /* assume failure */ + int i, name_i = -2, email_i = -2, date_i = -2, err = 0; + + if (strbuf_read_file(&buf, path, 256) <= 0) { + strbuf_release(&buf); + if (errno == ENOENT && allow_missing) + return 0; + else + return error_errno(_("could not open '%s' for reading"), + path); + } + + if (parse_key_value_squoted(buf.buf, &kv)) + goto finish; + + for (i = 0; i < kv.nr; i++) { + if (!strcmp(kv.items[i].string, "GIT_AUTHOR_NAME")) { + if (name_i >= 0) + name_i = error(_("'GIT_AUTHOR_NAME' already given")); + else + name_i = i; + } else if (!strcmp(kv.items[i].string, "GIT_AUTHOR_EMAIL")) { + if (email_i >= 0) + email_i = error(_("'GIT_AUTHOR_EMAIL' already given")); + else + email_i = i; + } else if (!strcmp(kv.items[i].string, "GIT_AUTHOR_DATE")) { + if (date_i >= 0) + date_i = error(_("'GIT_AUTHOR_DATE' already given")); + else + date_i = i; + } else { + err = error(_("unknown variable '%s'"), + kv.items[i].string); + } + } + if (name_i == -2) + error(_("missing 'GIT_AUTHOR_NAME'")); + if (email_i == -2) + error(_("missing 'GIT_AUTHOR_EMAIL'")); + if (date_i == -2) + error(_("missing 'GIT_AUTHOR_DATE'")); + if (date_i < 0 || email_i < 0 || date_i < 0 || err) + goto finish; + *name = kv.items[name_i].util; + *email = kv.items[email_i].util; + *date = kv.items[date_i].util; + retval = 0; +finish: + string_list_clear(&kv, !!retval); + strbuf_release(&buf); + return retval; +} /* * write_author_script() used to fail to terminate the last line with a "'" and diff --git a/sequencer.h b/sequencer.h index c751c9d6e4..3713f955f5 100644 --- a/sequencer.h +++ b/sequencer.h @@ -107,4 +107,7 @@ void commit_post_rewrite(const struct commit *current_head, #define SUMMARY_SHOW_AUTHOR_DATE (1 << 1) void print_commit_summary(const char *prefix, const struct object_id *oid, unsigned int flags); + +int read_author_script(const char *path, char **name, char **email, char **date, + int allow_missing); #endif