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Allow mailsplit (and hence git-am) to handle mails with CRLF line-endings 

It is not that uncommon to have mails with DOS line-ending, notably
Thunderbird and web mailers like Gmail (when saving what they call
"original" message).  So modify mailsplit to convert CRLF line-endings to
just LF.

Since git-rebase is built on top of git-am, add an option to mailsplit to
be used by git-am when it is acting on behalf of git-rebase, to refrain
from doing this conversion.

And add a test to make sure that rebase still works.

Signed-off-by: Brandon Casey <drafnel@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
maint
Junio C Hamano 2009-08-04 22:31:59 -05:00
parent 6a2d3f50f5
commit c2ca1d79db
3 changed files with 40 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
builtin-mailsplit.c
View File

@ -44,6 +44,7 @@ static int is_from_line(const char *line, int len)
}

static struct strbuf buf = STRBUF_INIT;
static int keep_cr;

/* Called with the first line (potentially partial)
* already in buf[] -- normally that should begin with
@ -69,6 +70,12 @@ static int split_one(FILE *mbox, const char *name, int allow_bare)
* "From " and having something that looks like a date format.
*/
for (;;) {
if (!keep_cr && buf.len > 1 && buf.buf[buf.len-1] == '\n' &&
buf.buf[buf.len-2] == '\r') {
strbuf_setlen(&buf, buf.len-2);
strbuf_addch(&buf, '\n');
}

if (fwrite(buf.buf, 1, buf.len, output) != buf.len)
die_errno("cannot write output");

@ -226,6 +233,8 @@ int cmd_mailsplit(int argc, const char **argv, const char *prefix)
nr = strtol(arg+2, NULL, 10);
} else if ( arg[1] == 'b' && !arg[2] ) {
allow_bare = 1;
} else if (!strcmp(arg, "--keep-cr")) {
keep_cr = 1;
} else if ( arg[1] == 'o' && arg[2] ) {
dir = arg+2;
} else if ( arg[1] == '-' && !arg[2] ) {

8
git-am.sh
View File

@ -197,7 +197,13 @@ check_patch_format () {
split_patches () {
case "$patch_format" in
mbox)
git mailsplit -d"$prec" -o"$dotest" -b -- "$@" > "$dotest/last" ||
case "$rebasing" in
'')
keep_cr= ;;
?*)
keep_cr=--keep-cr ;;
esac
git mailsplit -d"$prec" -o"$dotest" -b $keep_cr -- "$@" > "$dotest/last" ||
clean_abort
;;
stgit-series)

26
t/t3400-rebase.sh
View File

@ -3,9 +3,10 @@
# Copyright (c) 2005 Amos Waterland
#

test_description='git rebase should not destroy author information
test_description='git rebase assorted tests

This test runs git rebase and checks that the author information is not lost.
This test runs git rebase and checks that the author information is not lost
among other things.
'
. ./test-lib.sh

@ -133,4 +134,25 @@ test_expect_success 'rebase -q is quiet' '
test ! -s output.out
'

q_to_cr () {
tr Q '\015'
}

test_expect_success 'Rebase a commit that sprinkles CRs in' '
(
echo "One"
echo "TwoQ"
echo "Three"
echo "FQur"
echo "Five"
) | q_to_cr >CR &&
git add CR &&
test_tick &&
git commit -a -m "A file with a line with CR" &&
git tag file-with-cr &&
git checkout HEAD^0 &&
git rebase --onto HEAD^^ HEAD^ &&
git diff --exit-code file-with-cr:CR HEAD:CR
'

test_done