Signed-off-by: Jeff Smith <whydoubt@xxxxxxxxx>
---
blame.c | 203 +++++++++++++++++++++++++++++++++++++++++++++++++++++++-
blame.h | 4 +-
builtin/blame.c | 197 ------------------------------------------------------
3 files changed, 205 insertions(+), 199 deletions(-)
diff --git a/blame.c b/blame.c
index 4855d6d..8c025bc 100644
--- a/blame.c
+++ b/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;
+}
diff --git a/blame.h b/blame.h
index 39f8865..f831dec 100644
--- a/blame.h
+++ b/blame.h
@@ -6,6 +6,7 @@
#include "xdiff-interface.h"
#include "revision.h"
#include "prio-queue.h"
+#include "diff.h"
#define BLAME_DEFAULT_MOVE_SCORE 20
#define BLAME_DEFAULT_COPY_SCORE 40
@@ -155,7 +156,8 @@ 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 */
diff --git a/builtin/blame.c b/builtin/blame.c
index b60d604..33ede4f 100644
--- a/builtin/blame.c
+++ b/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"
@@ -2004,202 +2003,6 @@ 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)
{
--
2.9.3