[PATCH 1/4] Simplify calling of CR/LF conversion routines
From: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
---
* This is rebased on 'next'
builtin-apply.c | 18 +++++--------
cache.h | 4 +-
convert.c | 71 +++++++++++++++++++++++++++----------------------------
diff.c | 4 +-
entry.c | 7 +----
sha1_file.c | 7 ++---
6 files changed, 51 insertions(+), 60 deletions(-)
diff --git a/builtin-apply.c b/builtin-apply.c
index fd92ef7..ccd342c 100644
--- a/builtin-apply.c
+++ b/builtin-apply.c
@@ -1475,8 +1475,8 @@ static int read_old_data(struct stat *st, const char *path, char **buf_p, unsign
}
close(fd);
nsize = got;
- nbuf = buf;
- if (convert_to_git(path, &nbuf, &nsize)) {
+ nbuf = convert_to_git(path, buf, &nsize);
+ if (nbuf) {
free(buf);
*buf_p = nbuf;
*alloc_p = nsize;
@@ -2355,9 +2355,8 @@ static void add_index_file(const char *path, unsigned mode, void *buf, unsigned
static int try_create_file(const char *path, unsigned int mode, const char *buf, unsigned long size)
{
- int fd, converted;
+ int fd;
char *nbuf;
- unsigned long nsize;
if (has_symlinks && S_ISLNK(mode))
/* Although buf:size is counted string, it also is NUL
@@ -2369,13 +2368,10 @@ static int try_create_file(const char *path, unsigned int mode, const char *buf,
if (fd < 0)
return -1;
- nsize = size;
- nbuf = (char *) buf;
- converted = convert_to_working_tree(path, &nbuf, &nsize);
- if (converted) {
+ nbuf = convert_to_working_tree(path, buf, &size);
+ if (nbuf)
buf = nbuf;
- size = nsize;
- }
+
while (size) {
int written = xwrite(fd, buf, size);
if (written < 0)
@@ -2387,7 +2383,7 @@ static int try_create_file(const char *path, unsigned int mode, const char *buf,
}
if (close(fd) < 0)
die("closing file %s: %s", path, strerror(errno));
- if (converted)
+ if (nbuf)
free(nbuf);
return 0;
}
diff --git a/cache.h b/cache.h
index 38ad006..8c804cb 100644
--- a/cache.h
+++ b/cache.h
@@ -496,8 +496,8 @@ extern void trace_printf(const char *format, ...);
extern void trace_argv_printf(const char **argv, int count, const char *format, ...);
/* convert.c */
-extern int convert_to_git(const char *path, char **bufp, unsigned long *sizep);
-extern int convert_to_working_tree(const char *path, char **bufp, unsigned long *sizep);
+extern char *convert_to_git(const char *path, const char *src, unsigned long *sizep);
+extern char *convert_to_working_tree(const char *path, const char *src, unsigned long *sizep);
/* match-trees.c */
void shift_tree(const unsigned char *, const unsigned char *, unsigned char *, int);
diff --git a/convert.c b/convert.c
index da64253..742b895 100644
--- a/convert.c
+++ b/convert.c
@@ -79,25 +79,24 @@ static int is_binary(unsigned long size, struct text_stat *stats)
return 0;
}
-static int crlf_to_git(const char *path, char **bufp, unsigned long *sizep, int action)
+static char *crlf_to_git(const char *path, const char *src, unsigned long *sizep, int action)
{
- char *buffer, *nbuf;
+ char *buffer, *dst;
unsigned long size, nsize;
struct text_stat stats;
if ((action == CRLF_BINARY) || (action == CRLF_GUESS && !auto_crlf))
- return 0;
+ return NULL;
size = *sizep;
if (!size)
- return 0;
- buffer = *bufp;
+ return NULL;
- gather_stats(buffer, size, &stats);
+ gather_stats(src, size, &stats);
/* No CR? Nothing to convert, regardless. */
if (!stats.cr)
- return 0;
+ return NULL;
if (action == CRLF_GUESS) {
/*
@@ -106,13 +105,13 @@ static int crlf_to_git(const char *path, char **bufp, unsigned long *sizep, int
* stuff?
*/
if (stats.cr != stats.crlf)
- return 0;
+ return NULL;
/*
* And add some heuristics for binary vs text, of course...
*/
if (is_binary(size, &stats))
- return 0;
+ return NULL;
}
/*
@@ -120,10 +119,10 @@ static int crlf_to_git(const char *path, char **bufp, unsigned long *sizep, int
* to let the caller know that we switched buffers on it.
*/
nsize = size - stats.crlf;
- nbuf = xmalloc(nsize);
- *bufp = nbuf;
+ buffer = xmalloc(nsize);
*sizep = nsize;
+ dst = buffer;
if (action == CRLF_GUESS) {
/*
* If we guessed, we already know we rejected a file with
@@ -131,54 +130,53 @@ static int crlf_to_git(const char *path, char **bufp, unsigned long *sizep, int
* follow it.
*/
do {
- unsigned char c = *buffer++;
+ unsigned char c = *src++;
if (c != '\r')
- *nbuf++ = c;
+ *dst++ = c;
} while (--size);
} else {
do {
- unsigned char c = *buffer++;
+ unsigned char c = *src++;
if (! (c == '\r' && (1 < size && *buffer == '\n')))
- *nbuf++ = c;
+ *dst++ = c;
} while (--size);
}
- return 1;
+ return buffer;
}
-static int crlf_to_worktree(const char *path, char **bufp, unsigned long *sizep, int action)
+static char *crlf_to_worktree(const char *path, const char *src, unsigned long *sizep, int action)
{
- char *buffer, *nbuf;
+ char *buffer, *dst;
unsigned long size, nsize;
struct text_stat stats;
unsigned char last;
if ((action == CRLF_BINARY) || (action == CRLF_INPUT) ||
(action == CRLF_GUESS && auto_crlf <= 0))
- return 0;
+ return NULL;
size = *sizep;
if (!size)
- return 0;
- buffer = *bufp;
+ return NULL;
- gather_stats(buffer, size, &stats);
+ gather_stats(src, size, &stats);
/* No LF? Nothing to convert, regardless. */
if (!stats.lf)
- return 0;
+ return NULL;
/* Was it already in CRLF format? */
if (stats.lf == stats.crlf)
- return 0;
+ return NULL;
if (action == CRLF_GUESS) {
/* If we have any bare CR characters, we're not going to touch it */
if (stats.cr != stats.crlf)
- return 0;
+ return NULL;
if (is_binary(size, &stats))
- return 0;
+ return NULL;
}
/*
@@ -186,19 +184,20 @@ static int crlf_to_worktree(const char *path, char **bufp, unsigned long *sizep,
* to let the caller know that we switched buffers on it.
*/
nsize = size + stats.lf - stats.crlf;
- nbuf = xmalloc(nsize);
- *bufp = nbuf;
+ buffer = xmalloc(nsize);
*sizep = nsize;
last = 0;
+
+ dst = buffer;
do {
- unsigned char c = *buffer++;
+ unsigned char c = *src++;
if (c == '\n' && last != '\r')
- *nbuf++ = '\r';
- *nbuf++ = c;
+ *dst++ = '\r';
+ *dst++ = c;
last = c;
} while (--size);
- return 1;
+ return buffer;
}
static void setup_crlf_check(struct git_attr_check *check)
@@ -231,12 +230,12 @@ static int git_path_check_crlf(const char *path)
return CRLF_GUESS;
}
-int convert_to_git(const char *path, char **bufp, unsigned long *sizep)
+char *convert_to_git(const char *path, const char *src, unsigned long *sizep)
{
- return crlf_to_git(path, bufp, sizep, git_path_check_crlf(path));
+ return crlf_to_git(path, src, sizep, git_path_check_crlf(path));
}
-int convert_to_working_tree(const char *path, char **bufp, unsigned long *sizep)
+char *convert_to_working_tree(const char *path, const char *src, unsigned long *sizep)
{
- return crlf_to_worktree(path, bufp, sizep, git_path_check_crlf(path));
+ return crlf_to_worktree(path, src, sizep, git_path_check_crlf(path));
}
diff --git a/diff.c b/diff.c
index 5f50186..1cb1230 100644
--- a/diff.c
+++ b/diff.c
@@ -1493,9 +1493,9 @@ int diff_populate_filespec(struct diff_filespec *s, int size_only)
/*
* Convert from working tree format to canonical git format
*/
- buf = s->data;
size = s->size;
- if (convert_to_git(s->path, &buf, &size)) {
+ buf = convert_to_git(s->path, s->data, &size);
+ if (buf) {
munmap(s->data, s->size);
s->should_munmap = 0;
s->data = buf;
diff --git a/entry.c b/entry.c
index d72f811..3771209 100644
--- a/entry.c
+++ b/entry.c
@@ -79,7 +79,6 @@ static int write_entry(struct cache_entry *ce, char *path, struct checkout *stat
}
switch (ntohl(ce->ce_mode) & S_IFMT) {
char *buf;
- unsigned long nsize;
case S_IFREG:
if (to_tempfile) {
@@ -96,12 +95,10 @@ static int write_entry(struct cache_entry *ce, char *path, struct checkout *stat
/*
* Convert from git internal format to working tree format
*/
- buf = new;
- nsize = size;
- if (convert_to_working_tree(ce->name, &buf, &nsize)) {
+ buf = convert_to_working_tree(ce->name, new, &size);
+ if (buf) {
free(new);
new = buf;
- size = nsize;
}
wrote = write_in_full(fd, new, size);
diff --git a/sha1_file.c b/sha1_file.c
index 4304fe9..1978d5f 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -2277,10 +2277,9 @@ int index_fd(unsigned char *sha1, int fd, struct stat *st, int write_object,
*/
if ((type == OBJ_BLOB) && S_ISREG(st->st_mode)) {
unsigned long nsize = size;
- char *nbuf = buf;
- if (convert_to_git(path, &nbuf, &nsize)) {
- if (size)
- munmap(buf, size);
+ char *nbuf = convert_to_git(path, buf, &nsize);
+ if (nbuf) {
+ munmap(buf, size);
size = nsize;
buf = nbuf;
re_allocated = 1;
--
1.5.1.1.948.g9f6f
Junio C Hamano <junkio@cox.net>