Merge commit 'v1.7.6' into jc/checkout-reflog-fix

* commit 'v1.7.6': (3211 commits)
  Git 1.7.6
  completion: replace core.abbrevguard to core.abbrev
  Git 1.7.6-rc3
  Documentation: git diff --check respects core.whitespace
  gitweb: 'pickaxe' and 'grep' features requires 'search' to be enabled
  t7810: avoid unportable use of "echo"
  plug a few coverity-spotted leaks
  builtin/gc.c: add missing newline in message
  tests: link shell libraries into valgrind directory
  t/Makefile: pass test opts to valgrind target properly
  sh-i18n--envsubst.c: do not #include getopt.h
  Fix typo: existant->existent
  Git 1.7.6-rc2
  gitweb: do not misparse nonnumeric content tag files that contain a digit
  Git 1.7.6-rc1
  fetch: do not leak a refspec
  t3703: skip more tests using colons in file names on Windows
  gitweb: Fix usability of $prevent_xss
  gitweb: Move "Requirements" up in gitweb/INSTALL
  gitweb: Describe CSSMIN and JSMIN in gitweb/INSTALL
  ...

1 files changed, 130 insertions, 0 deletions

diff --git a/vcs-svn/line_buffer.c b/vcs-svn/line_buffer.c
new file mode 100644
index 0000000000..c39038723e
--- /dev/null
+++ b/vcs-svn/line_buffer.c
@@ -0,0 +1,130 @@
+/*
+ * Licensed under a two-clause BSD-style license.
+ * See LICENSE for details.
+ */
+
+#include "git-compat-util.h"
+#include "line_buffer.h"
+#include "strbuf.h"
+
+#define COPY_BUFFER_LEN 4096
+
+int buffer_init(struct line_buffer *buf, const char *filename)
+{
+	buf->infile = filename ? fopen(filename, "r") : stdin;
+	if (!buf->infile)
+		return -1;
+	return 0;
+}
+
+int buffer_fdinit(struct line_buffer *buf, int fd)
+{
+	buf->infile = fdopen(fd, "r");
+	if (!buf->infile)
+		return -1;
+	return 0;
+}
+
+int buffer_tmpfile_init(struct line_buffer *buf)
+{
+	buf->infile = tmpfile();
+	if (!buf->infile)
+		return -1;
+	return 0;
+}
+
+int buffer_deinit(struct line_buffer *buf)
+{
+	int err;
+	if (buf->infile == stdin)
+		return ferror(buf->infile);
+	err = ferror(buf->infile);
+	err |= fclose(buf->infile);
+	return err;
+}
+
+FILE *buffer_tmpfile_rewind(struct line_buffer *buf)
+{
+	rewind(buf->infile);
+	return buf->infile;
+}
+
+long buffer_tmpfile_prepare_to_read(struct line_buffer *buf)
+{
+	long pos = ftell(buf->infile);
+	if (pos < 0)
+		return error("ftell error: %s", strerror(errno));
+	if (fseek(buf->infile, 0, SEEK_SET))
+		return error("seek error: %s", strerror(errno));
+	return pos;
+}
+
+int buffer_ferror(struct line_buffer *buf)
+{
+	return ferror(buf->infile);
+}
+
+int buffer_read_char(struct line_buffer *buf)
+{
+	return fgetc(buf->infile);
+}
+
+/* Read a line without trailing newline. */
+char *buffer_read_line(struct line_buffer *buf)
+{
+	char *end;
+	if (!fgets(buf->line_buffer, sizeof(buf->line_buffer), buf->infile))
+		/* Error or data exhausted. */
+		return NULL;
+	end = buf->line_buffer + strlen(buf->line_buffer);
+	if (end[-1] == '\n')
+		end[-1] = '\0';
+	else if (feof(buf->infile))
+		; /* No newline at end of file.  That's fine. */
+	else
+		/*
+		 * Line was too long.
+		 * There is probably a saner way to deal with this,
+		 * but for now let's return an error.
+		 */
+		return NULL;
+	return buf->line_buffer;
+}
+
+void buffer_read_binary(struct line_buffer *buf,
+				struct strbuf *sb, uint32_t size)
+{
+	strbuf_fread(sb, size, buf->infile);
+}
+
+off_t buffer_copy_bytes(struct line_buffer *buf, off_t nbytes)
+{
+	char byte_buffer[COPY_BUFFER_LEN];
+	off_t done = 0;
+	while (done < nbytes && !feof(buf->infile) && !ferror(buf->infile)) {
+		off_t len = nbytes - done;
+		size_t in = len < COPY_BUFFER_LEN ? len : COPY_BUFFER_LEN;
+		in = fread(byte_buffer, 1, in, buf->infile);
+		done += in;
+		fwrite(byte_buffer, 1, in, stdout);
+		if (ferror(stdout))
+			return done + buffer_skip_bytes(buf, nbytes - done);
+	}
+	return done;
+}
+
+off_t buffer_skip_bytes(struct line_buffer *buf, off_t nbytes)
+{
+	char byte_buffer[COPY_BUFFER_LEN];
+	off_t done = 0;
+	while (done < nbytes && !feof(buf->infile) && !ferror(buf->infile)) {
+		off_t len = nbytes - done;
+		size_t in = len < COPY_BUFFER_LEN ? len : COPY_BUFFER_LEN;
+		done += fread(byte_buffer, 1, in, buf->infile);
+	}
+	return done;
+}
+
+void buffer_reset(struct line_buffer *buf)
+{
+}