зеркало из https://github.com/microsoft/git.git
Merge branches 'jc/convert', 'jc/bigfile' and 'jc/replacing' into jc/streaming
* jc/convert: convert: make it harder to screw up adding a conversion attribute convert: make it safer to add conversion attributes convert: give saner names to crlf/eol variables, types and functions convert: rename the "eol" global variable to "core_eol" * jc/bigfile: Bigfile: teach "git add" to send a large file straight to a pack index_fd(): split into two helper functions index_fd(): turn write_object and format_check arguments into one flag * jc/replacing: read_sha1_file(): allow selective bypassing of replacement mechanism inline lookup_replace_object() calls read_sha1_file(): get rid of read_sha1_file_repl() madness t6050: make sure we test not just commit replacement Declare lookup_replace_object() in cache.h, not in commit.h
This commit is contained in:
Junio C Hamano
Коммит
02071b27f1
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@ -14,8 +14,11 @@ static void hash_fd(int fd, const char *type, int write_object, const char *path
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{
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struct stat st;
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unsigned char sha1[20];
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unsigned flags = (HASH_FORMAT_CHECK |
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(write_object ? HASH_WRITE_OBJECT : 0));
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if (fstat(fd, &st) < 0 ||
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index_fd(sha1, fd, &st, write_object, type_from_string(type), path, 1))
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index_fd(sha1, fd, &st, type_from_string(type), path, flags))
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die(write_object
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? "Unable to add %s to database"
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: "Unable to hash %s", path);
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@ -23,8 +23,8 @@ static int verify_object(const unsigned char *sha1, const char *expected_type)
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int ret = -1;
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enum object_type type;
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unsigned long size;
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const unsigned char *repl;
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void *buffer = read_sha1_file_repl(sha1, &type, &size, &repl);
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void *buffer = read_sha1_file(sha1, &type, &size);
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const unsigned char *repl = lookup_replace_object(sha1);
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if (buffer) {
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if (type == type_from_string(expected_type))
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@ -99,7 +99,8 @@ static int add_one_path(struct cache_entry *old, const char *path, int len, stru
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fill_stat_cache_info(ce, st);
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ce->ce_mode = ce_mode_from_stat(old, st->st_mode);
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if (index_path(ce->sha1, path, st, !info_only))
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if (index_path(ce->sha1, path, st,
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info_only ? 0 : HASH_WRITE_OBJECT))
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return -1;
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option = allow_add ? ADD_CACHE_OK_TO_ADD : 0;
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option |= allow_replace ? ADD_CACHE_OK_TO_REPLACE : 0;
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27
cache.h
27
cache.h
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@ -518,8 +518,11 @@ struct pathspec {
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extern int init_pathspec(struct pathspec *, const char **);
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extern void free_pathspec(struct pathspec *);
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extern int ce_path_match(const struct cache_entry *ce, const struct pathspec *pathspec);
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extern int index_fd(unsigned char *sha1, int fd, struct stat *st, int write_object, enum object_type type, const char *path, int format_check);
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extern int index_path(unsigned char *sha1, const char *path, struct stat *st, int write_object);
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#define HASH_WRITE_OBJECT 1
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#define HASH_FORMAT_CHECK 2
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extern int index_fd(unsigned char *sha1, int fd, struct stat *st, enum object_type type, const char *path, unsigned flags);
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extern int index_path(unsigned char *sha1, const char *path, struct stat *st, unsigned flags);
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extern void fill_stat_cache_info(struct cache_entry *ce, struct stat *st);
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#define REFRESH_REALLY 0x0001 /* ignore_valid */
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@ -606,7 +609,7 @@ enum eol {
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#endif
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};
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extern enum eol eol;
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extern enum eol core_eol;
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enum branch_track {
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BRANCH_TRACK_UNSPECIFIED = -1,
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@ -756,13 +759,23 @@ char *strip_path_suffix(const char *path, const char *suffix);
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int daemon_avoid_alias(const char *path);
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int offset_1st_component(const char *path);
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/* Read and unpack a sha1 file into memory, write memory to a sha1 file */
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extern int sha1_object_info(const unsigned char *, unsigned long *);
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extern void *read_sha1_file_repl(const unsigned char *sha1, enum object_type *type, unsigned long *size, const unsigned char **replacement);
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/* object replacement */
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#define READ_SHA1_FILE_REPLACE 1
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extern void *read_sha1_file_extended(const unsigned char *sha1, enum object_type *type, unsigned long *size, unsigned flag);
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static inline void *read_sha1_file(const unsigned char *sha1, enum object_type *type, unsigned long *size)
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{
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return read_sha1_file_repl(sha1, type, size, NULL);
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return read_sha1_file_extended(sha1, type, size, READ_SHA1_FILE_REPLACE);
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}
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extern const unsigned char *do_lookup_replace_object(const unsigned char *sha1);
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static inline const unsigned char *lookup_replace_object(const unsigned char *sha1)
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{
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if (!read_replace_refs)
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return sha1;
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return do_lookup_replace_object(sha1);
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}
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/* Read and unpack a sha1 file into memory, write memory to a sha1 file */
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extern int sha1_object_info(const unsigned char *, unsigned long *);
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extern int hash_sha1_file(const void *buf, unsigned long len, const char *type, unsigned char *sha1);
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extern int write_sha1_file(const void *buf, unsigned long len, const char *type, unsigned char *return_sha1);
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extern int pretend_sha1_file(void *, unsigned long, enum object_type, unsigned char *);
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2
commit.h
2
commit.h
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@ -145,8 +145,6 @@ struct commit_graft *read_graft_line(char *buf, int len);
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int register_commit_graft(struct commit_graft *, int);
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struct commit_graft *lookup_commit_graft(const unsigned char *sha1);
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const unsigned char *lookup_replace_object(const unsigned char *sha1);
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extern struct commit_list *get_merge_bases(struct commit *rev1, struct commit *rev2, int cleanup);
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extern struct commit_list *get_merge_bases_many(struct commit *one, int n, struct commit **twos, int cleanup);
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extern struct commit_list *get_octopus_merge_bases(struct commit_list *in);
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12
config.c
12
config.c
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@ -583,7 +583,7 @@ static int git_default_core_config(const char *var, const char *value)
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if (!strcmp(var, "core.autocrlf")) {
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if (value && !strcasecmp(value, "input")) {
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if (eol == EOL_CRLF)
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if (core_eol == EOL_CRLF)
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return error("core.autocrlf=input conflicts with core.eol=crlf");
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auto_crlf = AUTO_CRLF_INPUT;
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return 0;
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@ -603,14 +603,14 @@ static int git_default_core_config(const char *var, const char *value)
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if (!strcmp(var, "core.eol")) {
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if (value && !strcasecmp(value, "lf"))
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eol = EOL_LF;
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core_eol = EOL_LF;
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else if (value && !strcasecmp(value, "crlf"))
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eol = EOL_CRLF;
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core_eol = EOL_CRLF;
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else if (value && !strcasecmp(value, "native"))
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eol = EOL_NATIVE;
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core_eol = EOL_NATIVE;
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else
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eol = EOL_UNSET;
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if (eol == EOL_CRLF && auto_crlf == AUTO_CRLF_INPUT)
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core_eol = EOL_UNSET;
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if (core_eol == EOL_CRLF && auto_crlf == AUTO_CRLF_INPUT)
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return error("core.autocrlf=input conflicts with core.eol=crlf");
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return 0;
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}
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158
convert.c
158
convert.c
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@ -12,7 +12,7 @@
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* translation when the "text" attribute or "auto_crlf" option is set.
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*/
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enum action {
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enum crlf_action {
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CRLF_GUESS = -1,
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CRLF_BINARY = 0,
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CRLF_TEXT,
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@ -94,9 +94,9 @@ static int is_binary(unsigned long size, struct text_stat *stats)
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return 0;
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}
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static enum eol determine_output_conversion(enum action action)
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static enum eol output_eol(enum crlf_action crlf_action)
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{
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switch (action) {
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switch (crlf_action) {
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case CRLF_BINARY:
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return EOL_UNSET;
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case CRLF_CRLF:
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@ -113,19 +113,19 @@ static enum eol determine_output_conversion(enum action action)
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return EOL_CRLF;
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else if (auto_crlf == AUTO_CRLF_INPUT)
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return EOL_LF;
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else if (eol == EOL_UNSET)
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else if (core_eol == EOL_UNSET)
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return EOL_NATIVE;
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}
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return eol;
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return core_eol;
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}
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static void check_safe_crlf(const char *path, enum action action,
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static void check_safe_crlf(const char *path, enum crlf_action crlf_action,
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struct text_stat *stats, enum safe_crlf checksafe)
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{
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if (!checksafe)
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return;
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if (determine_output_conversion(action) == EOL_LF) {
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if (output_eol(crlf_action) == EOL_LF) {
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/*
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* CRLFs would not be restored by checkout:
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* check if we'd remove CRLFs
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@ -136,7 +136,7 @@ static void check_safe_crlf(const char *path, enum action action,
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else /* i.e. SAFE_CRLF_FAIL */
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die("CRLF would be replaced by LF in %s.", path);
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}
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} else if (determine_output_conversion(action) == EOL_CRLF) {
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} else if (output_eol(crlf_action) == EOL_CRLF) {
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/*
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* CRLFs would be added by checkout:
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* check if we have "naked" LFs
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@ -188,18 +188,19 @@ static int has_cr_in_index(const char *path)
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}
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static int crlf_to_git(const char *path, const char *src, size_t len,
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struct strbuf *buf, enum action action, enum safe_crlf checksafe)
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struct strbuf *buf,
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enum crlf_action crlf_action, enum safe_crlf checksafe)
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{
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struct text_stat stats;
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char *dst;
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if (action == CRLF_BINARY ||
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(action == CRLF_GUESS && auto_crlf == AUTO_CRLF_FALSE) || !len)
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if (crlf_action == CRLF_BINARY ||
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(crlf_action == CRLF_GUESS && auto_crlf == AUTO_CRLF_FALSE) || !len)
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return 0;
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gather_stats(src, len, &stats);
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if (action == CRLF_AUTO || action == CRLF_GUESS) {
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if (crlf_action == CRLF_AUTO || crlf_action == CRLF_GUESS) {
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/*
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* We're currently not going to even try to convert stuff
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* that has bare CR characters. Does anybody do that crazy
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@ -214,7 +215,7 @@ static int crlf_to_git(const char *path, const char *src, size_t len,
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if (is_binary(len, &stats))
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return 0;
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if (action == CRLF_GUESS) {
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if (crlf_action == CRLF_GUESS) {
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/*
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* If the file in the index has any CR in it, do not convert.
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* This is the new safer autocrlf handling.
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@ -224,7 +225,7 @@ static int crlf_to_git(const char *path, const char *src, size_t len,
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}
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}
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check_safe_crlf(path, action, &stats, checksafe);
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check_safe_crlf(path, crlf_action, &stats, checksafe);
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/* Optimization: No CR? Nothing to convert, regardless. */
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if (!stats.cr)
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@ -234,7 +235,7 @@ static int crlf_to_git(const char *path, const char *src, size_t len,
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if (strbuf_avail(buf) + buf->len < len)
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strbuf_grow(buf, len - buf->len);
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dst = buf->buf;
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if (action == CRLF_AUTO || action == CRLF_GUESS) {
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if (crlf_action == CRLF_AUTO || crlf_action == CRLF_GUESS) {
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/*
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* If we guessed, we already know we rejected a file with
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* lone CR, and we can strip a CR without looking at what
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@ -257,12 +258,12 @@ static int crlf_to_git(const char *path, const char *src, size_t len,
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}
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static int crlf_to_worktree(const char *path, const char *src, size_t len,
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struct strbuf *buf, enum action action)
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struct strbuf *buf, enum crlf_action crlf_action)
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{
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char *to_free = NULL;
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struct text_stat stats;
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if (!len || determine_output_conversion(action) != EOL_CRLF)
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if (!len || output_eol(crlf_action) != EOL_CRLF)
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return 0;
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gather_stats(src, len, &stats);
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|
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@ -275,8 +276,8 @@ static int crlf_to_worktree(const char *path, const char *src, size_t len,
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if (stats.lf == stats.crlf)
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return 0;
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if (action == CRLF_AUTO || action == CRLF_GUESS) {
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if (action == CRLF_GUESS) {
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if (crlf_action == CRLF_AUTO || crlf_action == CRLF_GUESS) {
|
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if (crlf_action == CRLF_GUESS) {
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/* If we have any CR or CRLF line endings, we do not touch it */
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/* This is the new safer autocrlf-handling */
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if (stats.cr > 0 || stats.crlf > 0)
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|
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@ -474,30 +475,6 @@ static int read_convert_config(const char *var, const char *value, void *cb)
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return 0;
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}
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static void setup_convert_check(struct git_attr_check *check)
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{
|
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static struct git_attr *attr_text;
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static struct git_attr *attr_crlf;
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static struct git_attr *attr_eol;
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static struct git_attr *attr_ident;
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static struct git_attr *attr_filter;
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|
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if (!attr_text) {
|
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attr_text = git_attr("text");
|
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attr_crlf = git_attr("crlf");
|
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attr_eol = git_attr("eol");
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attr_ident = git_attr("ident");
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attr_filter = git_attr("filter");
|
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user_convert_tail = &user_convert;
|
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git_config(read_convert_config, NULL);
|
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}
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check[0].attr = attr_crlf;
|
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check[1].attr = attr_ident;
|
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check[2].attr = attr_filter;
|
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check[3].attr = attr_eol;
|
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check[4].attr = attr_text;
|
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}
|
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|
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static int count_ident(const char *cp, unsigned long size)
|
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{
|
||||
/*
|
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|
|
@ -715,7 +692,7 @@ static int git_path_check_ident(const char *path, struct git_attr_check *check)
|
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return !!ATTR_TRUE(value);
|
||||
}
|
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|
||||
static enum action determine_action(enum action text_attr, enum eol eol_attr)
|
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static enum crlf_action input_crlf_action(enum crlf_action text_attr, enum eol eol_attr)
|
||||
{
|
||||
if (text_attr == CRLF_BINARY)
|
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return CRLF_BINARY;
|
||||
|
|
@ -726,66 +703,83 @@ static enum action determine_action(enum action text_attr, enum eol eol_attr)
|
|||
return text_attr;
|
||||
}
|
||||
|
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struct conv_attrs {
|
||||
struct convert_driver *drv;
|
||||
enum crlf_action crlf_action;
|
||||
enum eol eol_attr;
|
||||
int ident;
|
||||
};
|
||||
|
||||
static const char *conv_attr_name[] = {
|
||||
"crlf", "ident", "filter", "eol", "text",
|
||||
};
|
||||
#define NUM_CONV_ATTRS ARRAY_SIZE(conv_attr_name)
|
||||
|
||||
static void convert_attrs(struct conv_attrs *ca, const char *path)
|
||||
{
|
||||
int i;
|
||||
static struct git_attr_check ccheck[NUM_CONV_ATTRS];
|
||||
|
||||
if (!ccheck[0].attr) {
|
||||
for (i = 0; i < NUM_CONV_ATTRS; i++)
|
||||
ccheck[i].attr = git_attr(conv_attr_name[i]);
|
||||
user_convert_tail = &user_convert;
|
||||
git_config(read_convert_config, NULL);
|
||||
}
|
||||
|
||||
if (!git_checkattr(path, NUM_CONV_ATTRS, ccheck)) {
|
||||
ca->crlf_action = git_path_check_crlf(path, ccheck + 4);
|
||||
if (ca->crlf_action == CRLF_GUESS)
|
||||
ca->crlf_action = git_path_check_crlf(path, ccheck + 0);
|
||||
ca->ident = git_path_check_ident(path, ccheck + 1);
|
||||
ca->drv = git_path_check_convert(path, ccheck + 2);
|
||||
ca->eol_attr = git_path_check_eol(path, ccheck + 3);
|
||||
} else {
|
||||
ca->drv = NULL;
|
||||
ca->crlf_action = CRLF_GUESS;
|
||||
ca->eol_attr = EOL_UNSET;
|
||||
ca->ident = 0;
|
||||
}
|
||||
}
|
||||
|
||||
int convert_to_git(const char *path, const char *src, size_t len,
|
||||
struct strbuf *dst, enum safe_crlf checksafe)
|
||||
{
|
||||
struct git_attr_check check[5];
|
||||
enum action action = CRLF_GUESS;
|
||||
enum eol eol_attr = EOL_UNSET;
|
||||
int ident = 0, ret = 0;
|
||||
int ret = 0;
|
||||
const char *filter = NULL;
|
||||
struct conv_attrs ca;
|
||||
|
||||
setup_convert_check(check);
|
||||
if (!git_checkattr(path, ARRAY_SIZE(check), check)) {
|
||||
struct convert_driver *drv;
|
||||
action = git_path_check_crlf(path, check + 4);
|
||||
if (action == CRLF_GUESS)
|
||||
action = git_path_check_crlf(path, check + 0);
|
||||
ident = git_path_check_ident(path, check + 1);
|
||||
drv = git_path_check_convert(path, check + 2);
|
||||
eol_attr = git_path_check_eol(path, check + 3);
|
||||
if (drv && drv->clean)
|
||||
filter = drv->clean;
|
||||
}
|
||||
convert_attrs(&ca, path);
|
||||
if (ca.drv)
|
||||
filter = ca.drv->clean;
|
||||
|
||||
ret |= apply_filter(path, src, len, dst, filter);
|
||||
if (ret) {
|
||||
src = dst->buf;
|
||||
len = dst->len;
|
||||
}
|
||||
action = determine_action(action, eol_attr);
|
||||
ret |= crlf_to_git(path, src, len, dst, action, checksafe);
|
||||
ca.crlf_action = input_crlf_action(ca.crlf_action, ca.eol_attr);
|
||||
ret |= crlf_to_git(path, src, len, dst, ca.crlf_action, checksafe);
|
||||
if (ret) {
|
||||
src = dst->buf;
|
||||
len = dst->len;
|
||||
}
|
||||
return ret | ident_to_git(path, src, len, dst, ident);
|
||||
return ret | ident_to_git(path, src, len, dst, ca.ident);
|
||||
}
|
||||
|
||||
static int convert_to_working_tree_internal(const char *path, const char *src,
|
||||
size_t len, struct strbuf *dst,
|
||||
int normalizing)
|
||||
{
|
||||
struct git_attr_check check[5];
|
||||
enum action action = CRLF_GUESS;
|
||||
enum eol eol_attr = EOL_UNSET;
|
||||
int ident = 0, ret = 0;
|
||||
int ret = 0;
|
||||
const char *filter = NULL;
|
||||
struct conv_attrs ca;
|
||||
|
||||
setup_convert_check(check);
|
||||
if (!git_checkattr(path, ARRAY_SIZE(check), check)) {
|
||||
struct convert_driver *drv;
|
||||
action = git_path_check_crlf(path, check + 4);
|
||||
if (action == CRLF_GUESS)
|
||||
action = git_path_check_crlf(path, check + 0);
|
||||
ident = git_path_check_ident(path, check + 1);
|
||||
drv = git_path_check_convert(path, check + 2);
|
||||
eol_attr = git_path_check_eol(path, check + 3);
|
||||
if (drv && drv->smudge)
|
||||
filter = drv->smudge;
|
||||
}
|
||||
convert_attrs(&ca, path);
|
||||
if (ca.drv)
|
||||
filter = ca.drv->smudge;
|
||||
|
||||
ret |= ident_to_worktree(path, src, len, dst, ident);
|
||||
ret |= ident_to_worktree(path, src, len, dst, ca.ident);
|
||||
if (ret) {
|
||||
src = dst->buf;
|
||||
len = dst->len;
|
||||
|
|
@ -795,8 +789,8 @@ static int convert_to_working_tree_internal(const char *path, const char *src,
|
|||
* is a smudge filter. The filter might expect CRLFs.
|
||||
*/
|
||||
if (filter || !normalizing) {
|
||||
action = determine_action(action, eol_attr);
|
||||
ret |= crlf_to_worktree(path, src, len, dst, action);
|
||||
ca.crlf_action = input_crlf_action(ca.crlf_action, ca.eol_attr);
|
||||
ret |= crlf_to_worktree(path, src, len, dst, ca.crlf_action);
|
||||
if (ret) {
|
||||
src = dst->buf;
|
||||
len = dst->len;
|
||||
|
|
|
|||
|
|
@ -42,8 +42,8 @@ const char *editor_program;
|
|||
const char *askpass_program;
|
||||
const char *excludes_file;
|
||||
enum auto_crlf auto_crlf = AUTO_CRLF_FALSE;
|
||||
int read_replace_refs = 1;
|
||||
enum eol eol = EOL_UNSET;
|
||||
int read_replace_refs = 1; /* NEEDSWORK: rename to use_replace_refs */
|
||||
enum eol core_eol = EOL_UNSET;
|
||||
enum safe_crlf safe_crlf = SAFE_CRLF_WARN;
|
||||
unsigned whitespace_rule_cfg = WS_DEFAULT_RULE;
|
||||
enum branch_track git_branch_track = BRANCH_TRACK_REMOTE;
|
||||
|
|
|
|||
|
|
@ -707,7 +707,7 @@ int notes_merge_commit(struct notes_merge_options *o,
|
|||
/* write file as blob, and add to partial_tree */
|
||||
if (stat(ent->name, &st))
|
||||
die_errno("Failed to stat '%s'", ent->name);
|
||||
if (index_path(blob_sha1, ent->name, &st, 1))
|
||||
if (index_path(blob_sha1, ent->name, &st, HASH_WRITE_OBJECT))
|
||||
die("Failed to write blob object from '%s'", ent->name);
|
||||
if (add_note(partial_tree, obj_sha1, blob_sha1, NULL))
|
||||
die("Failed to add resolved note '%s' to notes tree",
|
||||
|
|
|
|||
4
object.c
4
object.c
|
|
@ -188,8 +188,8 @@ struct object *parse_object(const unsigned char *sha1)
|
|||
unsigned long size;
|
||||
enum object_type type;
|
||||
int eaten;
|
||||
const unsigned char *repl;
|
||||
void *buffer = read_sha1_file_repl(sha1, &type, &size, &repl);
|
||||
const unsigned char *repl = lookup_replace_object(sha1);
|
||||
void *buffer = read_sha1_file(sha1, &type, &size);
|
||||
|
||||
if (buffer) {
|
||||
struct object *obj;
|
||||
|
|
|
|||
|
|
@ -92,7 +92,7 @@ static int ce_compare_data(struct cache_entry *ce, struct stat *st)
|
|||
|
||||
if (fd >= 0) {
|
||||
unsigned char sha1[20];
|
||||
if (!index_fd(sha1, fd, st, 0, OBJ_BLOB, ce->name, 0))
|
||||
if (!index_fd(sha1, fd, st, OBJ_BLOB, ce->name, 0))
|
||||
match = hashcmp(sha1, ce->sha1);
|
||||
/* index_fd() closed the file descriptor already */
|
||||
}
|
||||
|
|
@ -641,7 +641,7 @@ int add_to_index(struct index_state *istate, const char *path, struct stat *st,
|
|||
return 0;
|
||||
}
|
||||
if (!intent_only) {
|
||||
if (index_path(ce->sha1, path, st, 1))
|
||||
if (index_path(ce->sha1, path, st, HASH_WRITE_OBJECT))
|
||||
return error("unable to index file %s", path);
|
||||
} else
|
||||
record_intent_to_add(ce);
|
||||
|
|
|
|||
|
|
@ -85,12 +85,14 @@ static void prepare_replace_object(void)
|
|||
|
||||
for_each_replace_ref(register_replace_ref, NULL);
|
||||
replace_object_prepared = 1;
|
||||
if (!replace_object_nr)
|
||||
read_replace_refs = 0;
|
||||
}
|
||||
|
||||
/* We allow "recursive" replacement. Only within reason, though */
|
||||
#define MAXREPLACEDEPTH 5
|
||||
|
||||
const unsigned char *lookup_replace_object(const unsigned char *sha1)
|
||||
const unsigned char *do_lookup_replace_object(const unsigned char *sha1)
|
||||
{
|
||||
int pos, depth = MAXREPLACEDEPTH;
|
||||
const unsigned char *cur = sha1;
|
||||
|
|
|
|||
163
sha1_file.c
163
sha1_file.c
|
|
@ -11,6 +11,7 @@
|
|||
#include "pack.h"
|
||||
#include "blob.h"
|
||||
#include "commit.h"
|
||||
#include "run-command.h"
|
||||
#include "tag.h"
|
||||
#include "tree.h"
|
||||
#include "tree-walk.h"
|
||||
|
|
@ -2205,23 +2206,21 @@ static void *read_object(const unsigned char *sha1, enum object_type *type,
|
|||
* deal with them should arrange to call read_object() and give error
|
||||
* messages themselves.
|
||||
*/
|
||||
void *read_sha1_file_repl(const unsigned char *sha1,
|
||||
enum object_type *type,
|
||||
unsigned long *size,
|
||||
const unsigned char **replacement)
|
||||
void *read_sha1_file_extended(const unsigned char *sha1,
|
||||
enum object_type *type,
|
||||
unsigned long *size,
|
||||
unsigned flag)
|
||||
{
|
||||
const unsigned char *repl = lookup_replace_object(sha1);
|
||||
void *data;
|
||||
char *path;
|
||||
const struct packed_git *p;
|
||||
const unsigned char *repl = (flag & READ_SHA1_FILE_REPLACE)
|
||||
? lookup_replace_object(sha1) : sha1;
|
||||
|
||||
errno = 0;
|
||||
data = read_object(repl, type, size);
|
||||
if (data) {
|
||||
if (replacement)
|
||||
*replacement = repl;
|
||||
if (data)
|
||||
return data;
|
||||
}
|
||||
|
||||
if (errno && errno != ENOENT)
|
||||
die_errno("failed to read object %s", sha1_to_hex(sha1));
|
||||
|
|
@ -2580,10 +2579,11 @@ static void check_tag(const void *buf, size_t size)
|
|||
}
|
||||
|
||||
static int index_mem(unsigned char *sha1, void *buf, size_t size,
|
||||
int write_object, enum object_type type,
|
||||
const char *path, int format_check)
|
||||
enum object_type type,
|
||||
const char *path, unsigned flags)
|
||||
{
|
||||
int ret, re_allocated = 0;
|
||||
int write_object = flags & HASH_WRITE_OBJECT;
|
||||
|
||||
if (!type)
|
||||
type = OBJ_BLOB;
|
||||
|
|
@ -2599,7 +2599,7 @@ static int index_mem(unsigned char *sha1, void *buf, size_t size,
|
|||
re_allocated = 1;
|
||||
}
|
||||
}
|
||||
if (format_check) {
|
||||
if (flags & HASH_FORMAT_CHECK) {
|
||||
if (type == OBJ_TREE)
|
||||
check_tree(buf, size);
|
||||
if (type == OBJ_COMMIT)
|
||||
|
|
@ -2617,44 +2617,141 @@ static int index_mem(unsigned char *sha1, void *buf, size_t size,
|
|||
return ret;
|
||||
}
|
||||
|
||||
static int index_pipe(unsigned char *sha1, int fd, enum object_type type,
|
||||
const char *path, unsigned flags)
|
||||
{
|
||||
struct strbuf sbuf = STRBUF_INIT;
|
||||
int ret;
|
||||
|
||||
if (strbuf_read(&sbuf, fd, 4096) >= 0)
|
||||
ret = index_mem(sha1, sbuf.buf, sbuf.len, type, path, flags);
|
||||
else
|
||||
ret = -1;
|
||||
strbuf_release(&sbuf);
|
||||
return ret;
|
||||
}
|
||||
|
||||
#define SMALL_FILE_SIZE (32*1024)
|
||||
|
||||
int index_fd(unsigned char *sha1, int fd, struct stat *st, int write_object,
|
||||
enum object_type type, const char *path, int format_check)
|
||||
static int index_core(unsigned char *sha1, int fd, size_t size,
|
||||
enum object_type type, const char *path,
|
||||
unsigned flags)
|
||||
{
|
||||
int ret;
|
||||
size_t size = xsize_t(st->st_size);
|
||||
|
||||
if (!S_ISREG(st->st_mode)) {
|
||||
struct strbuf sbuf = STRBUF_INIT;
|
||||
if (strbuf_read(&sbuf, fd, 4096) >= 0)
|
||||
ret = index_mem(sha1, sbuf.buf, sbuf.len, write_object,
|
||||
type, path, format_check);
|
||||
else
|
||||
ret = -1;
|
||||
strbuf_release(&sbuf);
|
||||
} else if (!size) {
|
||||
ret = index_mem(sha1, NULL, size, write_object, type, path,
|
||||
format_check);
|
||||
if (!size) {
|
||||
ret = index_mem(sha1, NULL, size, type, path, flags);
|
||||
} else if (size <= SMALL_FILE_SIZE) {
|
||||
char *buf = xmalloc(size);
|
||||
if (size == read_in_full(fd, buf, size))
|
||||
ret = index_mem(sha1, buf, size, write_object, type,
|
||||
path, format_check);
|
||||
ret = index_mem(sha1, buf, size, type, path, flags);
|
||||
else
|
||||
ret = error("short read %s", strerror(errno));
|
||||
free(buf);
|
||||
} else {
|
||||
void *buf = xmmap(NULL, size, PROT_READ, MAP_PRIVATE, fd, 0);
|
||||
ret = index_mem(sha1, buf, size, write_object, type, path,
|
||||
format_check);
|
||||
ret = index_mem(sha1, buf, size, type, path, flags);
|
||||
munmap(buf, size);
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
/*
|
||||
* This creates one packfile per large blob, because the caller
|
||||
* immediately wants the result sha1, and fast-import can report the
|
||||
* object name via marks mechanism only by closing the created
|
||||
* packfile.
|
||||
*
|
||||
* This also bypasses the usual "convert-to-git" dance, and that is on
|
||||
* purpose. We could write a streaming version of the converting
|
||||
* functions and insert that before feeding the data to fast-import
|
||||
* (or equivalent in-core API described above), but the primary
|
||||
* motivation for trying to stream from the working tree file and to
|
||||
* avoid mmaping it in core is to deal with large binary blobs, and
|
||||
* by definition they do _not_ want to get any conversion.
|
||||
*/
|
||||
static int index_stream(unsigned char *sha1, int fd, size_t size,
|
||||
enum object_type type, const char *path,
|
||||
unsigned flags)
|
||||
{
|
||||
struct child_process fast_import;
|
||||
char export_marks[512];
|
||||
const char *argv[] = { "fast-import", "--quiet", export_marks, NULL };
|
||||
char tmpfile[512];
|
||||
char fast_import_cmd[512];
|
||||
char buf[512];
|
||||
int len, tmpfd;
|
||||
|
||||
strcpy(tmpfile, git_path("hashstream_XXXXXX"));
|
||||
tmpfd = git_mkstemp_mode(tmpfile, 0600);
|
||||
if (tmpfd < 0)
|
||||
die_errno("cannot create tempfile: %s", tmpfile);
|
||||
if (close(tmpfd))
|
||||
die_errno("cannot close tempfile: %s", tmpfile);
|
||||
sprintf(export_marks, "--export-marks=%s", tmpfile);
|
||||
|
||||
memset(&fast_import, 0, sizeof(fast_import));
|
||||
fast_import.in = -1;
|
||||
fast_import.argv = argv;
|
||||
fast_import.git_cmd = 1;
|
||||
if (start_command(&fast_import))
|
||||
die_errno("index-stream: git fast-import failed");
|
||||
|
||||
len = sprintf(fast_import_cmd, "blob\nmark :1\ndata %lu\n",
|
||||
(unsigned long) size);
|
||||
write_or_whine(fast_import.in, fast_import_cmd, len,
|
||||
"index-stream: feeding fast-import");
|
||||
while (size) {
|
||||
char buf[10240];
|
||||
size_t sz = size < sizeof(buf) ? size : sizeof(buf);
|
||||
size_t actual;
|
||||
|
||||
actual = read_in_full(fd, buf, sz);
|
||||
if (actual < 0)
|
||||
die_errno("index-stream: reading input");
|
||||
if (write_in_full(fast_import.in, buf, actual) != actual)
|
||||
die_errno("index-stream: feeding fast-import");
|
||||
size -= actual;
|
||||
}
|
||||
if (close(fast_import.in))
|
||||
die_errno("index-stream: closing fast-import");
|
||||
if (finish_command(&fast_import))
|
||||
die_errno("index-stream: finishing fast-import");
|
||||
|
||||
tmpfd = open(tmpfile, O_RDONLY);
|
||||
if (tmpfd < 0)
|
||||
die_errno("index-stream: cannot open fast-import mark");
|
||||
len = read(tmpfd, buf, sizeof(buf));
|
||||
if (len < 0)
|
||||
die_errno("index-stream: reading fast-import mark");
|
||||
if (close(tmpfd) < 0)
|
||||
die_errno("index-stream: closing fast-import mark");
|
||||
if (unlink(tmpfile))
|
||||
die_errno("index-stream: unlinking fast-import mark");
|
||||
if (len != 44 ||
|
||||
memcmp(":1 ", buf, 3) ||
|
||||
get_sha1_hex(buf + 3, sha1))
|
||||
die_errno("index-stream: unexpected fast-import mark: <%s>", buf);
|
||||
return 0;
|
||||
}
|
||||
|
||||
int index_fd(unsigned char *sha1, int fd, struct stat *st,
|
||||
enum object_type type, const char *path, unsigned flags)
|
||||
{
|
||||
int ret;
|
||||
size_t size = xsize_t(st->st_size);
|
||||
|
||||
if (!S_ISREG(st->st_mode))
|
||||
ret = index_pipe(sha1, fd, type, path, flags);
|
||||
else if (size <= big_file_threshold || type != OBJ_BLOB)
|
||||
ret = index_core(sha1, fd, size, type, path, flags);
|
||||
else
|
||||
ret = index_stream(sha1, fd, size, type, path, flags);
|
||||
close(fd);
|
||||
return ret;
|
||||
}
|
||||
|
||||
int index_path(unsigned char *sha1, const char *path, struct stat *st, int write_object)
|
||||
int index_path(unsigned char *sha1, const char *path, struct stat *st, unsigned flags)
|
||||
{
|
||||
int fd;
|
||||
struct strbuf sb = STRBUF_INIT;
|
||||
|
|
@ -2665,7 +2762,7 @@ int index_path(unsigned char *sha1, const char *path, struct stat *st, int write
|
|||
if (fd < 0)
|
||||
return error("open(\"%s\"): %s", path,
|
||||
strerror(errno));
|
||||
if (index_fd(sha1, fd, st, write_object, OBJ_BLOB, path, 0) < 0)
|
||||
if (index_fd(sha1, fd, st, OBJ_BLOB, path, flags) < 0)
|
||||
return error("%s: failed to insert into database",
|
||||
path);
|
||||
break;
|
||||
|
|
@ -2675,7 +2772,7 @@ int index_path(unsigned char *sha1, const char *path, struct stat *st, int write
|
|||
return error("readlink(\"%s\"): %s", path,
|
||||
errstr);
|
||||
}
|
||||
if (!write_object)
|
||||
if (!(flags & HASH_WRITE_OBJECT))
|
||||
hash_sha1_file(sb.buf, sb.len, blob_type, sha1);
|
||||
else if (write_sha1_file(sb.buf, sb.len, blob_type, sha1))
|
||||
return error("%s: failed to insert into database",
|
||||
|
|
|
|||
|
|
@ -0,0 +1,27 @@
|
|||
#!/bin/sh
|
||||
# Copyright (c) 2011, Google Inc.
|
||||
|
||||
test_description='adding and checking out large blobs'
|
||||
|
||||
. ./test-lib.sh
|
||||
|
||||
test_expect_success setup '
|
||||
git config core.bigfilethreshold 200k &&
|
||||
echo X | dd of=large bs=1k seek=2000
|
||||
'
|
||||
|
||||
test_expect_success 'add a large file' '
|
||||
git add large &&
|
||||
# make sure we got a packfile and no loose objects
|
||||
test -f .git/objects/pack/pack-*.pack &&
|
||||
test ! -f .git/objects/??/??????????????????????????????????????
|
||||
'
|
||||
|
||||
test_expect_success 'checkout a large file' '
|
||||
large=$(git rev-parse :large) &&
|
||||
git update-index --add --cacheinfo 100644 $large another &&
|
||||
git checkout another &&
|
||||
cmp large another ;# this must not be test_cmp
|
||||
'
|
||||
|
||||
test_done
|
||||
|
|
@ -236,6 +236,20 @@ test_expect_success 'index-pack and replacements' '
|
|||
git index-pack test-*.pack
|
||||
'
|
||||
|
||||
#
|
||||
#
|
||||
test_expect_success 'not just commits' '
|
||||
echo replaced >file &&
|
||||
git add file &&
|
||||
REPLACED=$(git rev-parse :file) &&
|
||||
mv file file.replaced &&
|
||||
|
||||
echo original >file &&
|
||||
git add file &&
|
||||
ORIGINAL=$(git rev-parse :file) &&
|
||||
git update-ref refs/replace/$ORIGINAL $REPLACED &&
|
||||
mv file file.original &&
|
||||
|
||||
git checkout file &&
|
||||
test_cmp file.replaced file
|
||||
'
|
||||
|
||||
test_done
|
||||
|
|
|
|||
Загрузка…
Ссылка в новой задаче