[PATCH 2/2] format-patch: escape "From " lines recognized by mailsplit
- From
- Eric Wong <e@80x24.org>
- Date
- Jul 24, 2016, 03:15 UTC
- Message-ID
- <20160724031543.GC32480@starla>
- In-Reply-To
- <20160724031409.GA32480@starla>
Users have mistakenly copied "From " lines into commit messages in the past, and will certainly make the same mistakes in the future. Since not everyone uses mboxrd, yet, we should at least prevent miss-split mails by always escaping "From " lines based on the check used by mailsplit.
mailsplit will not perform unescaping by default, yet, as it could cause further invocations of format-patch from old versions of git to generate bad output. Propagating the mboxo escaping is preferable to miss-split patches. Unescaping may still be performed via "--mboxrd".
ref: https://public-inbox.org/git/20160606230248.GA15906@dcvr.yhbt.net/T/#u
Signed-off-by: Eric Wong <e@80x24.org> --- pretty.c | 16 +++++++++++++--- t/t4014-format-patch.sh | 14 ++++++++++++++ 2 files changed, 27 insertions(+), 3 deletions(-)
diff --git a/pretty.c b/pretty.c index 9fa42c2..898c0a3 100644 --- a/pretty.c +++ b/pretty.c @@ -10,6 +10,7 @@ #include "color.h" #include "reflog-walk.h" #include "gpg-interface.h" +#include "mailinfo.h" static char *user_format; static struct cmt_fmt_map { @@ -1745,9 +1746,18 @@ void pp_remainder(struct pretty_print_context *pp, strbuf_add_tabexpand(sb, pp->expand_tabs_in_log, line, linelen); else { - if (pp->fmt == CMIT_FMT_MBOXRD && - is_mboxrd_from(line, linelen)) - strbuf_addch(sb, '>'); + switch (pp->fmt) { + case CMIT_FMT_EMAIL: + if (is_from_line(line, linelen)) + strbuf_addch(sb, '>'); + break; + case CMIT_FMT_MBOXRD: + if (is_mboxrd_from(line, linelen)) + strbuf_addch(sb, '>'); + break; + default: + break; + } strbuf_add(sb, line, linelen); } diff --git a/t/t4014-format-patch.sh b/t/t4014-format-patch.sh index 1206c48..8fa3982 100755 --- a/t/t4014-format-patch.sh +++ b/t/t4014-format-patch.sh @@ -1606,4 +1606,18 @@ test_expect_success 'format-patch --pretty=mboxrd' ' test_cmp expect actual ' +test_expect_success 'format-patch From escaping' ' + cat >msg <<-INPUT_END && + somebody pasted format-patch output into a body + + From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 + INPUT_END + + C=$(git commit-tree HEAD^^{tree} -p HEAD <msg) && + git format-patch --stdout -1 $C~1..$C >patch && + git grep -h --no-index \ + ">From 0000000000000000000000000000000000000000 " \ + patch +' + test_done
-- EW