Revision fdb70b16a006f82b65fb92995886a074c829f587 authored by Junio C Hamano on 11 October 2016, 21:21:17 UTC, committed by Junio C Hamano on 11 October 2016, 21:21:17 UTC
"git worktree", even though it used the default_abbrev setting that ought to be affected by core.abbrev configuration variable, ignored the variable setting. The command has been taught to read the default set of configuration variables to correct this. * jc/worktree-config: worktree: honor configuration variables
pkt-line.h
#ifndef PKTLINE_H
#define PKTLINE_H
#include "git-compat-util.h"
#include "strbuf.h"
/*
* Write a packetized stream, where each line is preceded by
* its length (including the header) as a 4-byte hex number.
* A length of 'zero' means end of stream (and a length of 1-3
* would be an error).
*
* This is all pretty stupid, but we use this packetized line
* format to make a streaming format possible without ever
* over-running the read buffers. That way we'll never read
* into what might be the pack data (which should go to another
* process entirely).
*
* The writing side could use stdio, but since the reading
* side can't, we stay with pure read/write interfaces.
*/
void packet_flush(int fd);
void packet_write(int fd, const char *fmt, ...) __attribute__((format (printf, 2, 3)));
void packet_buf_flush(struct strbuf *buf);
void packet_buf_write(struct strbuf *buf, const char *fmt, ...) __attribute__((format (printf, 2, 3)));
/*
* Read a packetized line into the buffer, which must be at least size bytes
* long. The return value specifies the number of bytes read into the buffer.
*
* If src_buffer and *src_buffer are not NULL, it should point to a buffer
* containing the packet data to parse, of at least *src_len bytes. After the
* function returns, src_buf will be incremented and src_len decremented by the
* number of bytes consumed.
*
* If src_buffer (or *src_buffer) is NULL, then data is read from the
* descriptor "fd".
*
* If options does not contain PACKET_READ_GENTLE_ON_EOF, we will die under any
* of the following conditions:
*
* 1. Read error from descriptor.
*
* 2. Protocol error from the remote (e.g., bogus length characters).
*
* 3. Receiving a packet larger than "size" bytes.
*
* 4. Truncated output from the remote (e.g., we expected a packet but got
* EOF, or we got a partial packet followed by EOF).
*
* If options does contain PACKET_READ_GENTLE_ON_EOF, we will not die on
* condition 4 (truncated input), but instead return -1. However, we will still
* die for the other 3 conditions.
*
* If options contains PACKET_READ_CHOMP_NEWLINE, a trailing newline (if
* present) is removed from the buffer before returning.
*/
#define PACKET_READ_GENTLE_ON_EOF (1u<<0)
#define PACKET_READ_CHOMP_NEWLINE (1u<<1)
int packet_read(int fd, char **src_buffer, size_t *src_len, char
*buffer, unsigned size, int options);
/*
* Convenience wrapper for packet_read that is not gentle, and sets the
* CHOMP_NEWLINE option. The return value is NULL for a flush packet,
* and otherwise points to a static buffer (that may be overwritten by
* subsequent calls). If the size parameter is not NULL, the length of the
* packet is written to it.
*/
char *packet_read_line(int fd, int *size);
/*
* Same as packet_read_line, but read from a buf rather than a descriptor;
* see packet_read for details on how src_* is used.
*/
char *packet_read_line_buf(char **src_buf, size_t *src_len, int *size);
#define DEFAULT_PACKET_MAX 1000
#define LARGE_PACKET_MAX 65520
extern char packet_buffer[LARGE_PACKET_MAX];
#endif
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