mailinfo: do not concatenate charset= attribute values from mime headers

"Content-type: text/plain; charset=UTF-8" header should not appear
twice in the input, but it is always better to gracefully deal with
such a case.  The current code concatenates the value to the values
we have seen previously, producing nonsense such as "utf8UTF-8".

Instead of concatenating, forget the previous value and use the last
value we see.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/mailinfo.c b/builtin/mailinfo.c
index eaf9e157a3897c2442756911b906ff9d3ee2be90..dd8b67cfaafb15272d424fb01ead8b51276ec957 100644 (file)
--- a/builtin/mailinfo.c
+++ b/builtin/mailinfo.c
@@ -160,10 +160,9 @@ static int slurp_attr(const char *line, const char *name, struct strbuf *attr)
        const char *ends, *ap = strcasestr(line, name);
        size_t sz;
 
-       if (!ap) {
-               strbuf_setlen(attr, 0);
+       strbuf_setlen(attr, 0);
+       if (!ap)
                return 0;
-       }
        ap += strlen(name);
        if (*ap == '"') {
                ap++;

diff --git a/t/t5100-mailinfo.sh b/t/t5100-mailinfo.sh
index 81904d9ec8d341399b534c5d576262439d0e1ad6..3e64a7a65da86410dd0236975bef9bd0013a6405 100755 (executable)
--- a/t/t5100-mailinfo.sh
+++ b/t/t5100-mailinfo.sh
@@ -11,7 +11,7 @@ test_expect_success 'split sample box' \
        'git mailsplit -o. "$TEST_DIRECTORY"/t5100/sample.mbox >last &&
        last=`cat last` &&
        echo total is $last &&
-       test `cat last` = 16'
+       test `cat last` = 17'
 
 check_mailinfo () {
        mail=$1 opt=$2

diff --git a/t/t5100/info0017 b/t/t5100/info0017
new file mode 100644 (file)
index 0000000..d2bc89f
--- /dev/null
+++ b/t/t5100/info0017
@@ -0,0 +1,5 @@
+Author: A U Thor
+Email: a.u.thor@example.com
+Subject: A E I O U
+Date: Mon, 17 Sep 2012 14:23:44 -0700
+

diff --git a/t/t5100/msg0017 b/t/t5100/msg0017
new file mode 100644 (file)
index 0000000..2ee0900
--- /dev/null
+++ b/t/t5100/msg0017
@@ -0,0 +1,2 @@
+New content here
+

diff --git a/t/t5100/patch0017 b/t/t5100/patch0017
new file mode 100644 (file)
index 0000000..35cf84c
--- /dev/null
+++ b/t/t5100/patch0017
@@ -0,0 +1,6 @@
+diff --git a/foo b/foo
+index e69de29..d95f3ad 100644
+--- a/foo
++++ b/foo
+@@ -0,0 +1 @@
++New content

diff --git a/t/t5100/sample.mbox b/t/t5100/sample.mbox
index de1031241d99a66db0653875ea163785691d12d6..fcc0e0d202fd6db7499763d8fec7564b137ea2f0 100644 (file)
--- a/t/t5100/sample.mbox
+++ b/t/t5100/sample.mbox
@@ -683,3 +683,19 @@ index e69de29..d95f3ad 100644
 @@ -0,0 +1 @@
 +content
 
+From nobody Mon Sep 17 00:00:00 2001
+From: A U Thor <a.u.thor@example.com>
+Subject: A E I O U
+Date: Mon, 17 Sep 2012 14:23:44 -0700
+MIME-Version: 1.0
+Content-Type: text/plain; charset="iso-2022-jp"
+Content-type: text/plain; charset="UTF-8"
+
+New content here
+
+diff --git a/foo b/foo
+index e69de29..d95f3ad 100644
+--- a/foo
++++ b/foo
+@@ -0,0 +1 @@
++New content