Author: pfg
Date: Sun Jul 2 21:00:30 2017
New Revision: 320579
URL: https://svnweb.freebsd.org/changeset/base/320579
Log:
patch(1): add support for git generated diffs.
Sometimes patches coming from other places have extra a/ and b/
directories prepended to filenames.
Obtained from: OpenBSD (CVS rev. 1.57, 1.58)
Modified:
head/usr.bin/patch/pch.c
Modified: head/usr.bin/patch/pch.c
==============================================================================
--- head/usr.bin/patch/pch.c Sun Jul 2 20:47:25 2017 (r320578)
+++ head/usr.bin/patch/pch.c Sun Jul 2 21:00:30 2017 (r320579)
@@ -264,6 +264,7 @@ intuit_diff_type(void)
char *s, *t;
int indent, retval;
struct file_name names[MAX_FILE];
+ int piece_of_git = 0;
memset(names, 0, sizeof(names));
ok_to_create_file = false;
@@ -308,14 +309,20 @@ intuit_diff_type(void)
if (!stars_last_line && strnEQ(s, "*** ", 4))
names[OLD_FILE].path = fetchname(s + 4,
&names[OLD_FILE].exists, strippath);
- else if (strnEQ(s, "--- ", 4))
- names[NEW_FILE].path = fetchname(s + 4,
+ else if (strnEQ(s, "--- ", 4)) {
+ size_t off = 4;
+ if (piece_of_git && strippath == 957)
+ off = 6;
+ names[NEW_FILE].path = fetchname(s + off,
&names[NEW_FILE].exists, strippath);
- else if (strnEQ(s, "+++ ", 4))
+ } else if (strnEQ(s, "+++ ", 4)) {
/* pretend it is the old name */
- names[OLD_FILE].path = fetchname(s + 4,
+ size_t off = 4;
+ if (piece_of_git && strippath == 957)
+ off = 6;
+ names[OLD_FILE].path = fetchname(s + off,
&names[OLD_FILE].exists, strippath);
- else if (strnEQ(s, "Index:", 6))
+ } else if (strnEQ(s, "Index:", 6))
names[INDEX_FILE].path = fetchname(s + 6,
&names[INDEX_FILE].exists, strippath);
else if (strnEQ(s, "Prereq:", 7)) {
@@ -330,6 +337,9 @@ intuit_diff_type(void)
free(revision);
revision = NULL;
}
+ } else if (strnEQ(s, "diff --git a/", 13)) {
+ /* Git-style diffs. */
+ piece_of_git = 1;
} else if (strnEQ(s, "==== ", 5)) {
/* Perforce-style diffs. */
if ((t = strstr(s + 5, " - ")) != NULL)
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