Revision 5bcde3082d5f348ff8b02547126746b9b713c8d5 authored by Junio C Hamano on 09 June 2008, 23:13:08 UTC, committed by Junio C Hamano on 09 June 2008, 23:13:08 UTC
* maint: git-read-tree: document -v option. Remove exec bit from builtin-fast-export.c
archive.c
#include "cache.h"
#include "commit.h"
#include "attr.h"
static void format_subst(const struct commit *commit,
const char *src, size_t len,
struct strbuf *buf)
{
char *to_free = NULL;
struct strbuf fmt;
if (src == buf->buf)
to_free = strbuf_detach(buf, NULL);
strbuf_init(&fmt, 0);
for (;;) {
const char *b, *c;
b = memmem(src, len, "$Format:", 8);
if (!b)
break;
c = memchr(b + 8, '$', (src + len) - b - 8);
if (!c)
break;
strbuf_reset(&fmt);
strbuf_add(&fmt, b + 8, c - b - 8);
strbuf_add(buf, src, b - src);
format_commit_message(commit, fmt.buf, buf);
len -= c + 1 - src;
src = c + 1;
}
strbuf_add(buf, src, len);
strbuf_release(&fmt);
free(to_free);
}
static int convert_to_archive(const char *path,
const void *src, size_t len,
struct strbuf *buf,
const struct commit *commit)
{
static struct git_attr *attr_export_subst;
struct git_attr_check check[1];
if (!commit)
return 0;
if (!attr_export_subst)
attr_export_subst = git_attr("export-subst", 12);
check[0].attr = attr_export_subst;
if (git_checkattr(path, ARRAY_SIZE(check), check))
return 0;
if (!ATTR_TRUE(check[0].value))
return 0;
format_subst(commit, src, len, buf);
return 1;
}
void *sha1_file_to_archive(const char *path, const unsigned char *sha1,
unsigned int mode, enum object_type *type,
unsigned long *sizep,
const struct commit *commit)
{
void *buffer;
buffer = read_sha1_file(sha1, type, sizep);
if (buffer && S_ISREG(mode)) {
struct strbuf buf;
size_t size = 0;
strbuf_init(&buf, 0);
strbuf_attach(&buf, buffer, *sizep, *sizep + 1);
convert_to_working_tree(path, buf.buf, buf.len, &buf);
convert_to_archive(path, buf.buf, buf.len, &buf, commit);
buffer = strbuf_detach(&buf, &size);
*sizep = size;
}
return buffer;
}
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