From patchwork Sun Jun 27 12:35:49 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: ZheNing Hu X-Patchwork-Id: 12346791 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0A18DC49EAB for ; Sun, 27 Jun 2021 12:36:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E816361C17 for ; Sun, 27 Jun 2021 12:36:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231133AbhF0Mik (ORCPT ); Sun, 27 Jun 2021 08:38:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35540 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230379AbhF0Mi2 (ORCPT ); Sun, 27 Jun 2021 08:38:28 -0400 Received: from mail-wr1-x42b.google.com (mail-wr1-x42b.google.com [IPv6:2a00:1450:4864:20::42b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 47E18C0617A6 for ; Sun, 27 Jun 2021 05:36:02 -0700 (PDT) Received: by mail-wr1-x42b.google.com with SMTP id r8so3269798wrx.5 for ; Sun, 27 Jun 2021 05:36:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=message-id:in-reply-to:references:from:date:subject:fcc :content-transfer-encoding:mime-version:to:cc; bh=2rDfAXZC1ZPMjY20WsDhQLg7ngrQ22CtojUix0Y0b0Q=; b=eaT3Btb9fCzXEHeGfqsIi3LcCEnjBDFBPu11z01XqDwyaD9fC7VzI8iaxxIL2dMden JlMyk6o3i5x9YGTcerhRD3RkUAKpDm4vtRQPpkWZV/bmxepQWCEDv7o/+i61XpWV5c84 9/M1Iu5Bie2YV9xiYVwN8WzEcpn/Y2wrJV/0OtA63ynDfviUUluf5iUY57WptcOGWagc a6BB2DWfWLV4/m+g8dilrnCGKiEMuNOYoo2t52YChDHKFGlfPrKEsfu0UGZWCtNZVMqF HA/I0P/eKM3Ogcrg0tVJtP9cWjQyHOk1r42ro5CsIZPAYh216XmsO7zQ5yR+3OVRrin9 3lEA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:message-id:in-reply-to:references:from:date :subject:fcc:content-transfer-encoding:mime-version:to:cc; bh=2rDfAXZC1ZPMjY20WsDhQLg7ngrQ22CtojUix0Y0b0Q=; b=mUMAN93PTXe8zrWSCYVnhJXti+la57vFsiKX38wIuHYi1JYYWSkMhxCnjnuJg8bJhi BzQWIR5+xXfpOCnAeb19K/8It4/EPwHHQ9kRm5KSOD2juhxB3gFTG0H7PHHDRQixJII6 pwxyiapxQQzpQozuUNSnLZdK+iXBQcpeNTkwkskZ/qRq4tSr5uR4DyjDcC9bOBUrMHuU 0bZrXSbRTnOIg22BQj+4y6afTln86e2wGz7VAvyOtZpV4guf3WDfcjWGEIPd+HHEHvnn FDg6Xn6k6d9FSLVyjOKa6BqEGsv2nk/znKjKLMDS425Afla0z2fJcK2hyr3r/ND5dkhL ++BQ== X-Gm-Message-State: AOAM533CHNuAVgI7QMhTpZjtQN/A+hKi3gmUiBAWWIY8jB0xmzKg2Hft MQ1Pwi8ESZ/WZmTEUVkWVqhE+Xb7s8Y= X-Google-Smtp-Source: ABdhPJyyrDT9MnEm7i2UyvNXvgaLzCuM3EAzuZ1F2sx/27p+dkCJckOACfCNDHuz89Nm7iZhBeDp9A== X-Received: by 2002:adf:b35a:: with SMTP id k26mr22204497wrd.26.1624797360934; Sun, 27 Jun 2021 05:36:00 -0700 (PDT) Received: from [127.0.0.1] ([13.74.141.28]) by smtp.gmail.com with ESMTPSA id c8sm11037041wri.91.2021.06.27.05.36.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 27 Jun 2021 05:36:00 -0700 (PDT) Message-Id: In-Reply-To: References: Date: Sun, 27 Jun 2021 12:35:49 +0000 Subject: [PATCH v6 14/15] [GSOC] cat-file: re-implement --textconv, --filters options Fcc: Sent MIME-Version: 1.0 To: git@vger.kernel.org Cc: Junio C Hamano , Christian Couder , Hariom Verma , Bagas Sanjaya , Jeff King , =?utf-8?b?w4Z2YXIgQXJuZmrDtnLDsA==?= Bjarmason , ZheNing Hu , ZheNing Hu Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org From: ZheNing Hu From: ZheNing Hu After cat-file reuses the ref-filter logic, we re-implement the functions of --textconv and --filters options. Add members `use_textconv` and `use_filters` in struct `ref_format`, and use global variables `use_filters` and `use_textconv` in `ref-filter.c`, so that we can filter the content of the object in get_object(). Use `actual_oi` to record the real expand_data: it may point to the original `oi` or the `act_oi` processed by `textconv_object()` or `convert_to_working_tree()`. `grab_values()` will grab the contents of `actual_oi` and `grab_common_values()` to grab the contents of origin `oi`, this ensures that `%(objectsize)` still uses the size of the unfiltered data. In `get_object()`, we made an optimization: Firstly, get the size and type of the object instead of directly getting the object data. If using --textconv, after successfully obtaining the filtered object data, an extra oid_object_info_extended() will be skipped, which can reduce the cost of object data copy; If using --filter, the data of the object first will be getted first, and then convert_to_working_tree() will be used to get the filtered object data. Mentored-by: Christian Couder Mentored-by: Hariom Verma Signed-off-by: ZheNing Hu --- builtin/cat-file.c | 6 +++++ ref-filter.c | 59 ++++++++++++++++++++++++++++++++++++++++++++-- ref-filter.h | 2 ++ 3 files changed, 65 insertions(+), 2 deletions(-) diff --git a/builtin/cat-file.c b/builtin/cat-file.c index dc604a9879d..710085b7d72 100644 --- a/builtin/cat-file.c +++ b/builtin/cat-file.c @@ -380,6 +380,12 @@ static int batch_objects(struct batch_options *batch, const struct option *optio if (batch->print_contents) strbuf_addstr(&format, "\n%(raw)"); batch->format.format = format.buf; + + if (batch->cmdmode == 'c') + batch->format.use_textconv = 1; + else if (batch->cmdmode == 'w') + batch->format.use_filters = 1; + if (verify_ref_format(&batch->format)) usage_with_options(cat_file_usage, options); diff --git a/ref-filter.c b/ref-filter.c index 9ca3dd5557d..427552b8108 100644 --- a/ref-filter.c +++ b/ref-filter.c @@ -1,3 +1,4 @@ +#define USE_THE_INDEX_COMPATIBILITY_MACROS #include "builtin.h" #include "cache.h" #include "parse-options.h" @@ -84,6 +85,9 @@ static struct expand_data { struct object_info info; } oi, oi_deref; +int use_filters; +int use_textconv; + struct ref_to_worktree_entry { struct hashmap_entry ent; struct worktree *wt; /* key is wt->head_ref */ @@ -1031,6 +1035,9 @@ int verify_ref_format(struct ref_format *format) used_atom[at].atom_type == ATOM_WORKTREEPATH))) die(_("this command reject atom %%(%.*s)"), (int)(ep - sp - 2), sp + 2); + use_filters = format->use_filters; + use_textconv = format->use_textconv; + if ((format->quote_style == QUOTE_PYTHON || format->quote_style == QUOTE_SHELL || format->quote_style == QUOTE_TCL) && @@ -1742,10 +1749,38 @@ static int get_object(struct ref_array_item *ref, int deref, struct object **obj { /* parse_object_buffer() will set eaten to 0 if free() will be needed */ int eaten = 1; + struct expand_data *actual_oi = oi; + struct expand_data act_oi = {0}; + if (oi->info.contentp) { /* We need to know that to use parse_object_buffer properly */ + void **temp_contentp = oi->info.contentp; + oi->info.contentp = NULL; oi->info.sizep = &oi->size; oi->info.typep = &oi->type; + + /* get the type and size */ + if (oid_object_info_extended(the_repository, &oi->oid, &oi->info, + OBJECT_INFO_LOOKUP_REPLACE)) + return strbuf_addf_ret(err, 1, _("%s missing"), + oid_to_hex(&oi->oid)); + + oi->info.sizep = NULL; + oi->info.typep = NULL; + oi->info.contentp = temp_contentp; + + if (use_textconv && !ref->rest) + return strbuf_addf_ret(err, -1, _("missing path for '%s'"), + oid_to_hex(&act_oi.oid)); + if (use_textconv && oi->type == OBJ_BLOB) { + act_oi = *oi; + if (textconv_object(the_repository, + ref->rest, 0100644, &act_oi.oid, + 1, (char **)(&act_oi.content), &act_oi.size)) { + actual_oi = &act_oi; + goto success; + } + } } if (oid_object_info_extended(the_repository, &oi->oid, &oi->info, OBJECT_INFO_LOOKUP_REPLACE)) @@ -1755,19 +1790,39 @@ static int get_object(struct ref_array_item *ref, int deref, struct object **obj BUG("Object size is less than zero."); if (oi->info.contentp) { - *obj = parse_object_buffer(the_repository, &oi->oid, oi->type, oi->size, oi->content, &eaten); + if (use_filters && !ref->rest) + return strbuf_addf_ret(err, -1, _("missing path for '%s'"), + oid_to_hex(&oi->oid)); + if (use_filters && oi->type == OBJ_BLOB) { + struct strbuf strbuf = STRBUF_INIT; + struct checkout_metadata meta; + act_oi = *oi; + + init_checkout_metadata(&meta, NULL, NULL, &act_oi.oid); + if (!convert_to_working_tree(&the_index, ref->rest, act_oi.content, act_oi.size, &strbuf, &meta)) + die("could not convert '%s' %s", + oid_to_hex(&oi->oid), ref->rest); + act_oi.size = strbuf.len; + act_oi.content = strbuf_detach(&strbuf, NULL); + actual_oi = &act_oi; + } + +success: + *obj = parse_object_buffer(the_repository, &actual_oi->oid, actual_oi->type, actual_oi->size, actual_oi->content, &eaten); if (!*obj) { if (!eaten) free(oi->content); return strbuf_addf_ret(err, -1, _("parse_object_buffer failed on %s for %s"), oid_to_hex(&oi->oid), ref->refname); } - grab_values(ref->value, deref, *obj, oi); + grab_values(ref->value, deref, *obj, actual_oi); } grab_common_values(ref->value, deref, oi); if (!eaten) free(oi->content); + if (actual_oi != oi) + free(actual_oi->content); return 0; } diff --git a/ref-filter.h b/ref-filter.h index 053980a6a42..497e3e93632 100644 --- a/ref-filter.h +++ b/ref-filter.h @@ -80,6 +80,8 @@ struct ref_format { const char *rest; int cat_file_mode; int quote_style; + int use_textconv; + int use_filters; int use_rest; int use_color;