From patchwork Mon Sep 2 22:39:44 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "brian m. carlson" X-Patchwork-Id: 11127089 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4F24A1398 for ; Mon, 2 Sep 2019 22:39:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2747821670 for ; Mon, 2 Sep 2019 22:39:58 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (3072-bit key) header.d=crustytoothpaste.net header.i=@crustytoothpaste.net header.b="v0lhzCFx" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727783AbfIBWj4 (ORCPT ); Mon, 2 Sep 2019 18:39:56 -0400 Received: from injection.crustytoothpaste.net ([192.241.140.119]:58514 "EHLO injection.crustytoothpaste.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727625AbfIBWjy (ORCPT ); Mon, 2 Sep 2019 18:39:54 -0400 Received: from genre.crustytoothpaste.net (unknown [IPv6:2001:470:b978:101:6959:e43b:5cf6:a465]) (using TLSv1.2 with cipher ECDHE-RSA-CHACHA20-POLY1305 (256/256 bits)) (No client certificate requested) by injection.crustytoothpaste.net (Postfix) with ESMTPSA id 44DA8610BC; Mon, 2 Sep 2019 22:39:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=crustytoothpaste.net; s=default; t=1567463993; bh=EhhSXzRcNfjwy4mmA5sKo1vU/mv6XZJhXaOfaHoRzm4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From:Reply-To: Subject:Date:To:CC:Resent-Date:Resent-From:Resent-To:Resent-Cc: In-Reply-To:References:Content-Type:Content-Disposition; b=v0lhzCFxaJiuKtziOMNKJRpuKhjGZTsgZm3xiBj/ArKY1mUWEzN4Yb3QW6Ya8TXAf OpkEBNq6M+pi0KmuGQikPbwPl9uAJ+ltXy3kh/JXpVy83itP0azD61G1aN+qGCoqUT trhwNC0B7rM3+zFAnh2AAI4KT0KG9tSC9OBAL7U7KlTo0XicDbuu5S6synYL0mvlC2 wf/sKYDHFbMCnEOrbNR3ZcUiLy1+5AC+RF07Du52CZeJ6CmUPMHYgw/2iJmH/DETVE 5OpLUY3z6VLDTfnpNGE28fzVbKnQjrGoTmTbRJvPK3sF4sblFUcUb0U8e23QjJoOOF Mb/YxKtZZdg2/3yK1xt5wZ50r9XuIkHlLVRIDg2aRiNMOgePhoCeyqI7VMMeLxVotO oyLBRb1AVsTlGGUn+1MFKTZikYxjUQ8eMP7RU7gn1teaLzLGTasRxAjjqHAB2ceXai XLyWcMObcj4QSWlcRQnK4mQH6aAPslx421THDjBU9NDNM8q3xcp From: "brian m. carlson" To: Cc: Phillip Wood , Johannes Schindelin Subject: [PATCH v6 2/2] am: reload .gitattributes after patching it Date: Mon, 2 Sep 2019 22:39:44 +0000 Message-Id: <20190902223944.897504-3-sandals@crustytoothpaste.net> X-Mailer: git-send-email 2.23.0.162.g0b9fbb3734 In-Reply-To: <20190902223944.897504-1-sandals@crustytoothpaste.net> References: <20190825233340.10894-1-sandals@crustytoothpaste.net> <20190902223944.897504-1-sandals@crustytoothpaste.net> MIME-Version: 1.0 X-Spam-Score: 1.994 (*) DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RDNS_NONE,SPF_FAIL,URIBL_BLOCKED Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org When applying multiple patches with git am, or when rebasing using the am backend, it's possible that one of our patches has updated a gitattributes file. Currently, we cache this information, so if a file in a subsequent patch has attributes applied, the file will be written out with the attributes in place as of the time we started the rebase or am operation, not with the attributes applied by the previous patch. This problem does not occur when using the -m or -i flags to rebase. To ensure we write the correct data into the working tree, expire the cache after each patch that touches a path ending in ".gitattributes". Since we load these attributes in multiple separate files, we must expire them accordingly. Verify that both the am and rebase code paths work correctly, including the conflict marker size with am -3. Signed-off-by: brian m. carlson --- apply.c | 11 ++++++++++ convert.c | 21 ++++++++++++++++++- convert.h | 6 ++++++ ll-merge.c | 19 +++++++++++++---- ll-merge.h | 1 + t/t3400-rebase.sh | 36 ++++++++++++++++++++++++++++++++ t/t4150-am.sh | 52 +++++++++++++++++++++++++++++++++++++++++++++++ 7 files changed, 141 insertions(+), 5 deletions(-) diff --git a/apply.c b/apply.c index cde95369bb..57a61f2881 100644 --- a/apply.c +++ b/apply.c @@ -4643,6 +4643,7 @@ static int apply_patch(struct apply_state *state, struct patch *list = NULL, **listp = &list; int skipped_patch = 0; int res = 0; + int flush_attributes = 0; state->patch_input_file = filename; if (read_patch_file(&buf, fd) < 0) @@ -4670,6 +4671,14 @@ static int apply_patch(struct apply_state *state, patch_stats(state, patch); *listp = patch; listp = &patch->next; + + if ((patch->new_name && + ends_with_path_components(patch->new_name, + GITATTRIBUTES_FILE)) || + (patch->old_name && + ends_with_path_components(patch->old_name, + GITATTRIBUTES_FILE))) + flush_attributes = 1; } else { if (state->apply_verbosity > verbosity_normal) @@ -4746,6 +4755,8 @@ static int apply_patch(struct apply_state *state, if (state->summary && state->apply_verbosity > verbosity_silent) summary_patch_list(list); + if (flush_attributes) + reset_parsed_attributes(); end: free_patch_list(list); strbuf_release(&buf); diff --git a/convert.c b/convert.c index 94ff837649..deb6f71b2d 100644 --- a/convert.c +++ b/convert.c @@ -8,6 +8,7 @@ #include "pkt-line.h" #include "sub-process.h" #include "utf8.h" +#include "ll-merge.h" /* * convert.c - convert a file when checking it out and checking it in. @@ -1293,10 +1294,11 @@ struct conv_attrs { const char *working_tree_encoding; /* Supported encoding or default encoding if NULL */ }; +static struct attr_check *check; + static void convert_attrs(const struct index_state *istate, struct conv_attrs *ca, const char *path) { - static struct attr_check *check; struct attr_check_item *ccheck = NULL; if (!check) { @@ -1339,6 +1341,23 @@ static void convert_attrs(const struct index_state *istate, ca->crlf_action = CRLF_AUTO_INPUT; } +void reset_parsed_attributes(void) +{ + struct convert_driver *drv, *next; + + attr_check_free(check); + check = NULL; + reset_merge_attributes(); + + for (drv = user_convert; drv; drv = next) { + next = drv->next; + free((void *)drv->name); + free(drv); + } + user_convert = NULL; + user_convert_tail = NULL; +} + int would_convert_to_git_filter_fd(const struct index_state *istate, const char *path) { struct conv_attrs ca; diff --git a/convert.h b/convert.h index 831559f10d..3710969d43 100644 --- a/convert.h +++ b/convert.h @@ -94,6 +94,12 @@ void convert_to_git_filter_fd(const struct index_state *istate, int would_convert_to_git_filter_fd(const struct index_state *istate, const char *path); +/* + * Reset the internal list of attributes used by convert_to_git and + * convert_to_working_tree. + */ +void reset_parsed_attributes(void); + /***************************************************************** * * Streaming conversion support diff --git a/ll-merge.c b/ll-merge.c index 5b8d46aede..d65a8971db 100644 --- a/ll-merge.c +++ b/ll-merge.c @@ -32,6 +32,20 @@ struct ll_merge_driver { char *cmdline; }; +static struct attr_check *merge_attributes; +static struct attr_check *load_merge_attributes(void) +{ + if (!merge_attributes) + merge_attributes = attr_check_initl("merge", "conflict-marker-size", NULL); + return merge_attributes; +} + +void reset_merge_attributes(void) +{ + attr_check_free(merge_attributes); + merge_attributes = NULL; +} + /* * Built-in low-levels */ @@ -354,7 +368,7 @@ int ll_merge(mmbuffer_t *result_buf, struct index_state *istate, const struct ll_merge_options *opts) { - static struct attr_check *check; + struct attr_check *check = load_merge_attributes(); static const struct ll_merge_options default_opts; const char *ll_driver_name = NULL; int marker_size = DEFAULT_CONFLICT_MARKER_SIZE; @@ -369,9 +383,6 @@ int ll_merge(mmbuffer_t *result_buf, normalize_file(theirs, path, istate); } - if (!check) - check = attr_check_initl("merge", "conflict-marker-size", NULL); - git_check_attr(istate, path, check); ll_driver_name = check->items[0].value; if (check->items[1].value) { diff --git a/ll-merge.h b/ll-merge.h index b9e2af1c88..e78973dd55 100644 --- a/ll-merge.h +++ b/ll-merge.h @@ -26,5 +26,6 @@ int ll_merge(mmbuffer_t *result_buf, const struct ll_merge_options *opts); int ll_merge_marker_size(struct index_state *istate, const char *path); +void reset_merge_attributes(void); #endif diff --git a/t/t3400-rebase.sh b/t/t3400-rebase.sh index 80b23fd326..23469cc789 100755 --- a/t/t3400-rebase.sh +++ b/t/t3400-rebase.sh @@ -301,6 +301,42 @@ test_expect_success 'rebase --am and --show-current-patch' ' ) ' +test_expect_success 'rebase --am and .gitattributes' ' + test_create_repo attributes && + ( + cd attributes && + test_commit init && + git config filter.test.clean "sed -e '\''s/smudged/clean/g'\''" && + git config filter.test.smudge "sed -e '\''s/clean/smudged/g'\''" && + + test_commit second && + git checkout -b test HEAD^ && + + echo "*.txt filter=test" >.gitattributes && + git add .gitattributes && + test_commit third && + + echo "This text is smudged." >a.txt && + git add a.txt && + test_commit fourth && + + git checkout -b removal HEAD^ && + git rm .gitattributes && + git add -u && + test_commit fifth && + git cherry-pick test && + + git checkout test && + git rebase master && + grep "smudged" a.txt && + + git checkout removal && + git reset --hard && + git rebase master && + grep "clean" a.txt + ) +' + test_expect_success 'rebase--merge.sh and --show-current-patch' ' test_create_repo conflict-merge && ( diff --git a/t/t4150-am.sh b/t/t4150-am.sh index 3f7f750cc8..4f1e24ecbe 100755 --- a/t/t4150-am.sh +++ b/t/t4150-am.sh @@ -1061,4 +1061,56 @@ test_expect_success 'am --quit keeps HEAD where it is' ' test_cmp expected actual ' +test_expect_success 'am and .gitattibutes' ' + test_create_repo attributes && + ( + cd attributes && + test_commit init && + git config filter.test.clean "sed -e '\''s/smudged/clean/g'\''" && + git config filter.test.smudge "sed -e '\''s/clean/smudged/g'\''" && + + test_commit second && + git checkout -b test HEAD^ && + + echo "*.txt filter=test conflict-marker-size=10" >.gitattributes && + git add .gitattributes && + test_commit third && + + echo "This text is smudged." >a.txt && + git add a.txt && + test_commit fourth && + + git checkout -b removal HEAD^ && + git rm .gitattributes && + git add -u && + test_commit fifth && + git cherry-pick test && + + git checkout -b conflict third && + echo "This text is different." >a.txt && + git add a.txt && + test_commit sixth && + + git checkout test && + git format-patch --stdout master..HEAD >patches && + git reset --hard master && + git am patches && + grep "smudged" a.txt && + + git checkout removal && + git reset --hard && + git format-patch --stdout master..HEAD >patches && + git reset --hard master && + git am patches && + grep "clean" a.txt && + + git checkout conflict && + git reset --hard && + git format-patch --stdout master..HEAD >patches && + git reset --hard fourth && + test_must_fail git am -3 patches && + grep "<<<<<<<<<<" a.txt + ) +' + test_done