From 69cd8f63427c65c65d9cd66bb8c05ca93dc3edef Mon Sep 17 00:00:00 2001 From: Alexander Gavrilov Date: Wed, 22 Oct 2008 00:55:57 +0400 Subject: [PATCH] builtin-blame: Reencode commit messages according to git-log rules. Currently git-blame outputs text from the commit messages (e.g. the author name and the summary string) as-is, without even providing any information about the encoding used for the data. It makes interpreting the data in multilingual environment very difficult. This commit changes the blame implementation to recode the messages using the rules used by other commands like git-log. Namely, the target encoding can be specified through the i18n.commitEncoding or i18n.logOutputEncoding options, or directly on the command line using the --encoding parameter. Converting the encoding before output seems to be more friendly to the porcelain tools than simply providing the value of the encoding header, and does not require changing the output format. If anybody needs the old behavior, it is possible to achieve it by specifying --encoding=none. Signed-off-by: Alexander Gavrilov Signed-off-by: Junio C Hamano --- Documentation/blame-options.txt | 7 +++ Documentation/i18n.txt | 6 +-- builtin-blame.c | 16 ++++-- commit.h | 2 + pretty.c | 21 +++++--- t/t8005-blame-i18n.sh | 92 +++++++++++++++++++++++++++++++++ t/t8005/cp1251.txt | 2 + t/t8005/sjis.txt | 2 + t/t8005/utf8.txt | 2 + 9 files changed, 136 insertions(+), 14 deletions(-) create mode 100755 t/t8005-blame-i18n.sh create mode 100644 t/t8005/cp1251.txt create mode 100644 t/t8005/sjis.txt create mode 100644 t/t8005/utf8.txt diff --git a/Documentation/blame-options.txt b/Documentation/blame-options.txt index 5428111d7..1ab1b96cf 100644 --- a/Documentation/blame-options.txt +++ b/Documentation/blame-options.txt @@ -49,6 +49,13 @@ of lines before or after the line given by . Show the result incrementally in a format designed for machine consumption. +--encoding=:: + Specifies the encoding used to output author names + and commit summaries. Setting it to `none` makes blame + output unconverted data. For more information see the + discussion about encoding in the linkgit:git-log[1] + manual page. + --contents :: When is not specified, the command annotates the changes starting backwards from the working tree copy. diff --git a/Documentation/i18n.txt b/Documentation/i18n.txt index d2970f835..2cdacd94c 100644 --- a/Documentation/i18n.txt +++ b/Documentation/i18n.txt @@ -37,9 +37,9 @@ of `i18n.commitencoding` in its `encoding` header. This is to help other people who look at them later. Lack of this header implies that the commit log message is encoded in UTF-8. -. 'git-log', 'git-show' and friends looks at the `encoding` - header of a commit object, and tries to re-code the log - message into UTF-8 unless otherwise specified. You can +. 'git-log', 'git-show', 'git-blame' and friends look at the + `encoding` header of a commit object, and try to re-code the + log message into UTF-8 unless otherwise specified. You can specify the desired output encoding with `i18n.logoutputencoding` in `.git/config` file, like this: + diff --git a/builtin-blame.c b/builtin-blame.c index 48cc0c175..2457e71fc 100644 --- a/builtin-blame.c +++ b/builtin-blame.c @@ -1431,7 +1431,7 @@ static void get_commit_info(struct commit *commit, int detailed) { int len; - char *tmp, *endp; + char *tmp, *endp, *reencoded, *message; static char author_buf[1024]; static char committer_buf[1024]; static char summary_buf[1024]; @@ -1449,24 +1449,29 @@ static void get_commit_info(struct commit *commit, die("Cannot read commit %s", sha1_to_hex(commit->object.sha1)); } + reencoded = reencode_commit_message(commit, NULL); + message = reencoded ? reencoded : commit->buffer; ret->author = author_buf; - get_ac_line(commit->buffer, "\nauthor ", + get_ac_line(message, "\nauthor ", sizeof(author_buf), author_buf, &ret->author_mail, &ret->author_time, &ret->author_tz); - if (!detailed) + if (!detailed) { + free(reencoded); return; + } ret->committer = committer_buf; - get_ac_line(commit->buffer, "\ncommitter ", + get_ac_line(message, "\ncommitter ", sizeof(committer_buf), committer_buf, &ret->committer_mail, &ret->committer_time, &ret->committer_tz); ret->summary = summary_buf; - tmp = strstr(commit->buffer, "\n\n"); + tmp = strstr(message, "\n\n"); if (!tmp) { error_out: sprintf(summary_buf, "(%s)", sha1_to_hex(commit->object.sha1)); + free(reencoded); return; } tmp += 2; @@ -1478,6 +1483,7 @@ static void get_commit_info(struct commit *commit, goto error_out; memcpy(summary_buf, tmp, len); summary_buf[len] = 0; + free(reencoded); } /* diff --git a/commit.h b/commit.h index 4c05864fb..3a7b06a82 100644 --- a/commit.h +++ b/commit.h @@ -65,6 +65,8 @@ enum cmit_fmt { extern int non_ascii(int); struct rev_info; /* in revision.h, it circularly uses enum cmit_fmt */ +extern char *reencode_commit_message(const struct commit *commit, + const char **encoding_p); extern void get_commit_format(const char *arg, struct rev_info *); extern void format_commit_message(const struct commit *commit, const void *format, struct strbuf *sb, diff --git a/pretty.c b/pretty.c index 1e7994333..f6ff31264 100644 --- a/pretty.c +++ b/pretty.c @@ -783,6 +783,20 @@ void pp_remainder(enum cmit_fmt fmt, } } +char *reencode_commit_message(const struct commit *commit, const char **encoding_p) +{ + const char *encoding; + + encoding = (git_log_output_encoding + ? git_log_output_encoding + : git_commit_encoding); + if (!encoding) + encoding = "utf-8"; + if (encoding_p) + *encoding_p = encoding; + return logmsg_reencode(commit, encoding); +} + void pretty_print_commit(enum cmit_fmt fmt, const struct commit *commit, struct strbuf *sb, int abbrev, const char *subject, const char *after_subject, @@ -799,12 +813,7 @@ void pretty_print_commit(enum cmit_fmt fmt, const struct commit *commit, return; } - encoding = (git_log_output_encoding - ? git_log_output_encoding - : git_commit_encoding); - if (!encoding) - encoding = "utf-8"; - reencoded = logmsg_reencode(commit, encoding); + reencoded = reencode_commit_message(commit, &encoding); if (reencoded) { msg = reencoded; } diff --git a/t/t8005-blame-i18n.sh b/t/t8005-blame-i18n.sh new file mode 100755 index 000000000..4470a92bb --- /dev/null +++ b/t/t8005-blame-i18n.sh @@ -0,0 +1,92 @@ +#!/bin/sh + +test_description='git blame encoding conversion' +. ./test-lib.sh + +. "$TEST_DIRECTORY"/t8005/utf8.txt +. "$TEST_DIRECTORY"/t8005/cp1251.txt +. "$TEST_DIRECTORY"/t8005/sjis.txt + +test_expect_success 'setup the repository' ' + # Create the file + echo "UTF-8 LINE" > file && + git add file && + git commit --author "$UTF8_NAME " -m "$UTF8_MSG" && + + echo "CP1251 LINE" >> file && + git add file && + git config i18n.commitencoding cp1251 && + git commit --author "$CP1251_NAME " -m "$CP1251_MSG" && + + echo "SJIS LINE" >> file && + git add file && + git config i18n.commitencoding shift-jis && + git commit --author "$SJIS_NAME " -m "$SJIS_MSG" +' + +cat >expected < actual && + test_cmp actual expected +' + +cat >expected < actual && + test_cmp actual expected +' + +cat >expected < actual && + test_cmp actual expected +' + +cat >expected < actual && + test_cmp actual expected +' + +test_done diff --git a/t/t8005/cp1251.txt b/t/t8005/cp1251.txt new file mode 100644 index 000000000..ce41e98b8 --- /dev/null +++ b/t/t8005/cp1251.txt @@ -0,0 +1,2 @@ +CP1251_NAME="Èâàí Ïåòðîâè÷ Ñèäîðîâ" +CP1251_MSG="Òåñòîâîå ñîîáùåíèå" diff --git a/t/t8005/sjis.txt b/t/t8005/sjis.txt new file mode 100644 index 000000000..2ccfbad20 --- /dev/null +++ b/t/t8005/sjis.txt @@ -0,0 +1,2 @@ +SJIS_NAME="„I„r„p„~ „P„u„„„‚„€„r„y„‰ „R„y„t„€„‚„€„r" +SJIS_MSG="„S„u„ƒ„„„€„r„€„u „ƒ„€„€„q„‹„u„~„y„u" diff --git a/t/t8005/utf8.txt b/t/t8005/utf8.txt new file mode 100644 index 000000000..f46cfc56d --- /dev/null +++ b/t/t8005/utf8.txt @@ -0,0 +1,2 @@ +UTF8_NAME="Иван Петрович Сидоров" +UTF8_MSG="Тестовое сообщение" -- 2.30.2