зеркало из https://github.com/microsoft/git.git
blame: move fake-commit-related methods to libgit
Signed-off-by: Jeff Smith <whydoubt@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jeff Smith
Junio C Hamano
Родитель
f5dd754c36
Коммит
072bf4321f
203
blame.c
203
blame.c
|
|
@ -1,3 +1,6 @@
|
|||
#include "cache.h"
|
||||
#include "refs.h"
|
||||
#include "cache-tree.h"
|
||||
#include "blame.h"
|
||||
|
||||
void blame_origin_decref(struct blame_origin *o)
|
||||
|
|
@ -28,7 +31,7 @@ void blame_origin_decref(struct blame_origin *o)
|
|||
* get_origin() to obtain shared, refcounted copy instead of calling
|
||||
* this function directly.
|
||||
*/
|
||||
struct blame_origin *make_origin(struct commit *commit, const char *path)
|
||||
static struct blame_origin *make_origin(struct commit *commit, const char *path)
|
||||
{
|
||||
struct blame_origin *o;
|
||||
FLEX_ALLOC_STR(o, path, path);
|
||||
|
|
@ -60,3 +63,201 @@ struct blame_origin *get_origin(struct commit *commit, const char *path)
|
|||
}
|
||||
return make_origin(commit, path);
|
||||
}
|
||||
|
||||
|
||||
|
||||
static void verify_working_tree_path(struct commit *work_tree, const char *path)
|
||||
{
|
||||
struct commit_list *parents;
|
||||
int pos;
|
||||
|
||||
for (parents = work_tree->parents; parents; parents = parents->next) {
|
||||
const struct object_id *commit_oid = &parents->item->object.oid;
|
||||
struct object_id blob_oid;
|
||||
unsigned mode;
|
||||
|
||||
if (!get_tree_entry(commit_oid->hash, path, blob_oid.hash, &mode) &&
|
||||
sha1_object_info(blob_oid.hash, NULL) == OBJ_BLOB)
|
||||
return;
|
||||
}
|
||||
|
||||
pos = cache_name_pos(path, strlen(path));
|
||||
if (pos >= 0)
|
||||
; /* path is in the index */
|
||||
else if (-1 - pos < active_nr &&
|
||||
!strcmp(active_cache[-1 - pos]->name, path))
|
||||
; /* path is in the index, unmerged */
|
||||
else
|
||||
die("no such path '%s' in HEAD", path);
|
||||
}
|
||||
|
||||
static struct commit_list **append_parent(struct commit_list **tail, const struct object_id *oid)
|
||||
{
|
||||
struct commit *parent;
|
||||
|
||||
parent = lookup_commit_reference(oid->hash);
|
||||
if (!parent)
|
||||
die("no such commit %s", oid_to_hex(oid));
|
||||
return &commit_list_insert(parent, tail)->next;
|
||||
}
|
||||
|
||||
static void append_merge_parents(struct commit_list **tail)
|
||||
{
|
||||
int merge_head;
|
||||
struct strbuf line = STRBUF_INIT;
|
||||
|
||||
merge_head = open(git_path_merge_head(), O_RDONLY);
|
||||
if (merge_head < 0) {
|
||||
if (errno == ENOENT)
|
||||
return;
|
||||
die("cannot open '%s' for reading", git_path_merge_head());
|
||||
}
|
||||
|
||||
while (!strbuf_getwholeline_fd(&line, merge_head, '\n')) {
|
||||
struct object_id oid;
|
||||
if (line.len < GIT_SHA1_HEXSZ || get_oid_hex(line.buf, &oid))
|
||||
die("unknown line in '%s': %s", git_path_merge_head(), line.buf);
|
||||
tail = append_parent(tail, &oid);
|
||||
}
|
||||
close(merge_head);
|
||||
strbuf_release(&line);
|
||||
}
|
||||
|
||||
/*
|
||||
* This isn't as simple as passing sb->buf and sb->len, because we
|
||||
* want to transfer ownership of the buffer to the commit (so we
|
||||
* must use detach).
|
||||
*/
|
||||
static void set_commit_buffer_from_strbuf(struct commit *c, struct strbuf *sb)
|
||||
{
|
||||
size_t len;
|
||||
void *buf = strbuf_detach(sb, &len);
|
||||
set_commit_buffer(c, buf, len);
|
||||
}
|
||||
|
||||
/*
|
||||
* Prepare a dummy commit that represents the work tree (or staged) item.
|
||||
* Note that annotating work tree item never works in the reverse.
|
||||
*/
|
||||
struct commit *fake_working_tree_commit(struct diff_options *opt,
|
||||
const char *path,
|
||||
const char *contents_from)
|
||||
{
|
||||
struct commit *commit;
|
||||
struct blame_origin *origin;
|
||||
struct commit_list **parent_tail, *parent;
|
||||
struct object_id head_oid;
|
||||
struct strbuf buf = STRBUF_INIT;
|
||||
const char *ident;
|
||||
time_t now;
|
||||
int size, len;
|
||||
struct cache_entry *ce;
|
||||
unsigned mode;
|
||||
struct strbuf msg = STRBUF_INIT;
|
||||
|
||||
read_cache();
|
||||
time(&now);
|
||||
commit = alloc_commit_node();
|
||||
commit->object.parsed = 1;
|
||||
commit->date = now;
|
||||
parent_tail = &commit->parents;
|
||||
|
||||
if (!resolve_ref_unsafe("HEAD", RESOLVE_REF_READING, head_oid.hash, NULL))
|
||||
die("no such ref: HEAD");
|
||||
|
||||
parent_tail = append_parent(parent_tail, &head_oid);
|
||||
append_merge_parents(parent_tail);
|
||||
verify_working_tree_path(commit, path);
|
||||
|
||||
origin = make_origin(commit, path);
|
||||
|
||||
ident = fmt_ident("Not Committed Yet", "not.committed.yet", NULL, 0);
|
||||
strbuf_addstr(&msg, "tree 0000000000000000000000000000000000000000\n");
|
||||
for (parent = commit->parents; parent; parent = parent->next)
|
||||
strbuf_addf(&msg, "parent %s\n",
|
||||
oid_to_hex(&parent->item->object.oid));
|
||||
strbuf_addf(&msg,
|
||||
"author %s\n"
|
||||
"committer %s\n\n"
|
||||
"Version of %s from %s\n",
|
||||
ident, ident, path,
|
||||
(!contents_from ? path :
|
||||
(!strcmp(contents_from, "-") ? "standard input" : contents_from)));
|
||||
set_commit_buffer_from_strbuf(commit, &msg);
|
||||
|
||||
if (!contents_from || strcmp("-", contents_from)) {
|
||||
struct stat st;
|
||||
const char *read_from;
|
||||
char *buf_ptr;
|
||||
unsigned long buf_len;
|
||||
|
||||
if (contents_from) {
|
||||
if (stat(contents_from, &st) < 0)
|
||||
die_errno("Cannot stat '%s'", contents_from);
|
||||
read_from = contents_from;
|
||||
}
|
||||
else {
|
||||
if (lstat(path, &st) < 0)
|
||||
die_errno("Cannot lstat '%s'", path);
|
||||
read_from = path;
|
||||
}
|
||||
mode = canon_mode(st.st_mode);
|
||||
|
||||
switch (st.st_mode & S_IFMT) {
|
||||
case S_IFREG:
|
||||
if (DIFF_OPT_TST(opt, ALLOW_TEXTCONV) &&
|
||||
textconv_object(read_from, mode, &null_oid, 0, &buf_ptr, &buf_len))
|
||||
strbuf_attach(&buf, buf_ptr, buf_len, buf_len + 1);
|
||||
else if (strbuf_read_file(&buf, read_from, st.st_size) != st.st_size)
|
||||
die_errno("cannot open or read '%s'", read_from);
|
||||
break;
|
||||
case S_IFLNK:
|
||||
if (strbuf_readlink(&buf, read_from, st.st_size) < 0)
|
||||
die_errno("cannot readlink '%s'", read_from);
|
||||
break;
|
||||
default:
|
||||
die("unsupported file type %s", read_from);
|
||||
}
|
||||
}
|
||||
else {
|
||||
/* Reading from stdin */
|
||||
mode = 0;
|
||||
if (strbuf_read(&buf, 0, 0) < 0)
|
||||
die_errno("failed to read from stdin");
|
||||
}
|
||||
convert_to_git(path, buf.buf, buf.len, &buf, 0);
|
||||
origin->file.ptr = buf.buf;
|
||||
origin->file.size = buf.len;
|
||||
pretend_sha1_file(buf.buf, buf.len, OBJ_BLOB, origin->blob_oid.hash);
|
||||
|
||||
/*
|
||||
* Read the current index, replace the path entry with
|
||||
* origin->blob_sha1 without mucking with its mode or type
|
||||
* bits; we are not going to write this index out -- we just
|
||||
* want to run "diff-index --cached".
|
||||
*/
|
||||
discard_cache();
|
||||
read_cache();
|
||||
|
||||
len = strlen(path);
|
||||
if (!mode) {
|
||||
int pos = cache_name_pos(path, len);
|
||||
if (0 <= pos)
|
||||
mode = active_cache[pos]->ce_mode;
|
||||
else
|
||||
/* Let's not bother reading from HEAD tree */
|
||||
mode = S_IFREG | 0644;
|
||||
}
|
||||
size = cache_entry_size(len);
|
||||
ce = xcalloc(1, size);
|
||||
oidcpy(&ce->oid, &origin->blob_oid);
|
||||
memcpy(ce->name, path, len);
|
||||
ce->ce_flags = create_ce_flags(0);
|
||||
ce->ce_namelen = len;
|
||||
ce->ce_mode = create_ce_mode(mode);
|
||||
add_cache_entry(ce, ADD_CACHE_OK_TO_ADD|ADD_CACHE_OK_TO_REPLACE);
|
||||
|
||||
cache_tree_invalidate_path(&the_index, path);
|
||||
|
||||
return commit;
|
||||
}
|
||||
|
|
|
|||
4
blame.h
4
blame.h
|
|
@ -6,6 +6,7 @@
|
|||
#include "xdiff-interface.h"
|
||||
#include "revision.h"
|
||||
#include "prio-queue.h"
|
||||
#include "diff.h"
|
||||
|
||||
/*
|
||||
* One blob in a commit that is being suspected
|
||||
|
|
@ -152,7 +153,8 @@ static inline struct blame_origin *blame_origin_incref(struct blame_origin *o)
|
|||
}
|
||||
extern void blame_origin_decref(struct blame_origin *o);
|
||||
|
||||
extern struct blame_origin *make_origin(struct commit *commit, const char *path);
|
||||
extern struct blame_origin *get_origin(struct commit *commit, const char *path);
|
||||
|
||||
extern struct commit *fake_working_tree_commit(struct diff_options *opt, const char *path, const char *contents_from);
|
||||
|
||||
#endif /* BLAME_H */
|
||||
|
|
|
|||
197
builtin/blame.c
197
builtin/blame.c
|
|
@ -16,7 +16,6 @@
|
|||
#include "revision.h"
|
||||
#include "quote.h"
|
||||
#include "xdiff-interface.h"
|
||||
#include "cache-tree.h"
|
||||
#include "string-list.h"
|
||||
#include "mailmap.h"
|
||||
#include "mergesort.h"
|
||||
|
|
@ -2006,202 +2005,6 @@ static int git_blame_config(const char *var, const char *value, void *cb)
|
|||
return git_default_config(var, value, cb);
|
||||
}
|
||||
|
||||
static void verify_working_tree_path(struct commit *work_tree, const char *path)
|
||||
{
|
||||
struct commit_list *parents;
|
||||
int pos;
|
||||
|
||||
for (parents = work_tree->parents; parents; parents = parents->next) {
|
||||
const struct object_id *commit_oid = &parents->item->object.oid;
|
||||
struct object_id blob_oid;
|
||||
unsigned mode;
|
||||
|
||||
if (!get_tree_entry(commit_oid->hash, path, blob_oid.hash, &mode) &&
|
||||
sha1_object_info(blob_oid.hash, NULL) == OBJ_BLOB)
|
||||
return;
|
||||
}
|
||||
|
||||
pos = cache_name_pos(path, strlen(path));
|
||||
if (pos >= 0)
|
||||
; /* path is in the index */
|
||||
else if (-1 - pos < active_nr &&
|
||||
!strcmp(active_cache[-1 - pos]->name, path))
|
||||
; /* path is in the index, unmerged */
|
||||
else
|
||||
die("no such path '%s' in HEAD", path);
|
||||
}
|
||||
|
||||
static struct commit_list **append_parent(struct commit_list **tail, const struct object_id *oid)
|
||||
{
|
||||
struct commit *parent;
|
||||
|
||||
parent = lookup_commit_reference(oid->hash);
|
||||
if (!parent)
|
||||
die("no such commit %s", oid_to_hex(oid));
|
||||
return &commit_list_insert(parent, tail)->next;
|
||||
}
|
||||
|
||||
static void append_merge_parents(struct commit_list **tail)
|
||||
{
|
||||
int merge_head;
|
||||
struct strbuf line = STRBUF_INIT;
|
||||
|
||||
merge_head = open(git_path_merge_head(), O_RDONLY);
|
||||
if (merge_head < 0) {
|
||||
if (errno == ENOENT)
|
||||
return;
|
||||
die("cannot open '%s' for reading", git_path_merge_head());
|
||||
}
|
||||
|
||||
while (!strbuf_getwholeline_fd(&line, merge_head, '\n')) {
|
||||
struct object_id oid;
|
||||
if (line.len < GIT_SHA1_HEXSZ || get_oid_hex(line.buf, &oid))
|
||||
die("unknown line in '%s': %s", git_path_merge_head(), line.buf);
|
||||
tail = append_parent(tail, &oid);
|
||||
}
|
||||
close(merge_head);
|
||||
strbuf_release(&line);
|
||||
}
|
||||
|
||||
/*
|
||||
* This isn't as simple as passing sb->buf and sb->len, because we
|
||||
* want to transfer ownership of the buffer to the commit (so we
|
||||
* must use detach).
|
||||
*/
|
||||
static void set_commit_buffer_from_strbuf(struct commit *c, struct strbuf *sb)
|
||||
{
|
||||
size_t len;
|
||||
void *buf = strbuf_detach(sb, &len);
|
||||
set_commit_buffer(c, buf, len);
|
||||
}
|
||||
|
||||
/*
|
||||
* Prepare a dummy commit that represents the work tree (or staged) item.
|
||||
* Note that annotating work tree item never works in the reverse.
|
||||
*/
|
||||
static struct commit *fake_working_tree_commit(struct diff_options *opt,
|
||||
const char *path,
|
||||
const char *contents_from)
|
||||
{
|
||||
struct commit *commit;
|
||||
struct blame_origin *origin;
|
||||
struct commit_list **parent_tail, *parent;
|
||||
struct object_id head_oid;
|
||||
struct strbuf buf = STRBUF_INIT;
|
||||
const char *ident;
|
||||
time_t now;
|
||||
int size, len;
|
||||
struct cache_entry *ce;
|
||||
unsigned mode;
|
||||
struct strbuf msg = STRBUF_INIT;
|
||||
|
||||
read_cache();
|
||||
time(&now);
|
||||
commit = alloc_commit_node();
|
||||
commit->object.parsed = 1;
|
||||
commit->date = now;
|
||||
parent_tail = &commit->parents;
|
||||
|
||||
if (!resolve_ref_unsafe("HEAD", RESOLVE_REF_READING, head_oid.hash, NULL))
|
||||
die("no such ref: HEAD");
|
||||
|
||||
parent_tail = append_parent(parent_tail, &head_oid);
|
||||
append_merge_parents(parent_tail);
|
||||
verify_working_tree_path(commit, path);
|
||||
|
||||
origin = make_origin(commit, path);
|
||||
|
||||
ident = fmt_ident("Not Committed Yet", "not.committed.yet", NULL, 0);
|
||||
strbuf_addstr(&msg, "tree 0000000000000000000000000000000000000000\n");
|
||||
for (parent = commit->parents; parent; parent = parent->next)
|
||||
strbuf_addf(&msg, "parent %s\n",
|
||||
oid_to_hex(&parent->item->object.oid));
|
||||
strbuf_addf(&msg,
|
||||
"author %s\n"
|
||||
"committer %s\n\n"
|
||||
"Version of %s from %s\n",
|
||||
ident, ident, path,
|
||||
(!contents_from ? path :
|
||||
(!strcmp(contents_from, "-") ? "standard input" : contents_from)));
|
||||
set_commit_buffer_from_strbuf(commit, &msg);
|
||||
|
||||
if (!contents_from || strcmp("-", contents_from)) {
|
||||
struct stat st;
|
||||
const char *read_from;
|
||||
char *buf_ptr;
|
||||
unsigned long buf_len;
|
||||
|
||||
if (contents_from) {
|
||||
if (stat(contents_from, &st) < 0)
|
||||
die_errno("Cannot stat '%s'", contents_from);
|
||||
read_from = contents_from;
|
||||
}
|
||||
else {
|
||||
if (lstat(path, &st) < 0)
|
||||
die_errno("Cannot lstat '%s'", path);
|
||||
read_from = path;
|
||||
}
|
||||
mode = canon_mode(st.st_mode);
|
||||
|
||||
switch (st.st_mode & S_IFMT) {
|
||||
case S_IFREG:
|
||||
if (DIFF_OPT_TST(opt, ALLOW_TEXTCONV) &&
|
||||
textconv_object(read_from, mode, &null_oid, 0, &buf_ptr, &buf_len))
|
||||
strbuf_attach(&buf, buf_ptr, buf_len, buf_len + 1);
|
||||
else if (strbuf_read_file(&buf, read_from, st.st_size) != st.st_size)
|
||||
die_errno("cannot open or read '%s'", read_from);
|
||||
break;
|
||||
case S_IFLNK:
|
||||
if (strbuf_readlink(&buf, read_from, st.st_size) < 0)
|
||||
die_errno("cannot readlink '%s'", read_from);
|
||||
break;
|
||||
default:
|
||||
die("unsupported file type %s", read_from);
|
||||
}
|
||||
}
|
||||
else {
|
||||
/* Reading from stdin */
|
||||
mode = 0;
|
||||
if (strbuf_read(&buf, 0, 0) < 0)
|
||||
die_errno("failed to read from stdin");
|
||||
}
|
||||
convert_to_git(path, buf.buf, buf.len, &buf, 0);
|
||||
origin->file.ptr = buf.buf;
|
||||
origin->file.size = buf.len;
|
||||
pretend_sha1_file(buf.buf, buf.len, OBJ_BLOB, origin->blob_oid.hash);
|
||||
|
||||
/*
|
||||
* Read the current index, replace the path entry with
|
||||
* origin->blob_sha1 without mucking with its mode or type
|
||||
* bits; we are not going to write this index out -- we just
|
||||
* want to run "diff-index --cached".
|
||||
*/
|
||||
discard_cache();
|
||||
read_cache();
|
||||
|
||||
len = strlen(path);
|
||||
if (!mode) {
|
||||
int pos = cache_name_pos(path, len);
|
||||
if (0 <= pos)
|
||||
mode = active_cache[pos]->ce_mode;
|
||||
else
|
||||
/* Let's not bother reading from HEAD tree */
|
||||
mode = S_IFREG | 0644;
|
||||
}
|
||||
size = cache_entry_size(len);
|
||||
ce = xcalloc(1, size);
|
||||
oidcpy(&ce->oid, &origin->blob_oid);
|
||||
memcpy(ce->name, path, len);
|
||||
ce->ce_flags = create_ce_flags(0);
|
||||
ce->ce_namelen = len;
|
||||
ce->ce_mode = create_ce_mode(mode);
|
||||
add_cache_entry(ce, ADD_CACHE_OK_TO_ADD|ADD_CACHE_OK_TO_REPLACE);
|
||||
|
||||
cache_tree_invalidate_path(&the_index, path);
|
||||
|
||||
return commit;
|
||||
}
|
||||
|
||||
static struct commit *find_single_final(struct rev_info *revs,
|
||||
const char **name_p)
|
||||
{
|
||||
|
|
|
|||
Загрузка…
Ссылка в новой задаче