зеркало из https://github.com/microsoft/git.git
shallow: add setup_temporary_shallow()
This function is like setup_alternate_shallow() except that it does not lock $GIT_DIR/shallow. It is supposed to be used when a program generates temporary shallow for use by another program, then throw the shallow file away. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Родитель
6a3bbb4db4
Коммит
08ea65ad13
1
commit.h
1
commit.h
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@ -201,6 +201,7 @@ extern void set_alternate_shallow_file(const char *path);
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extern int write_shallow_commits(struct strbuf *out, int use_pack_protocol);
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extern void setup_alternate_shallow(struct lock_file *shallow_lock,
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const char **alternate_shallow_file);
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extern char *setup_temporary_shallow(void);
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int is_descendant_of(struct commit *, struct commit_list *);
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int in_merge_bases(struct commit *, struct commit *);
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23
shallow.c
23
shallow.c
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@ -175,6 +175,29 @@ int write_shallow_commits(struct strbuf *out, int use_pack_protocol)
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return data.count;
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}
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char *setup_temporary_shallow(void)
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{
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struct strbuf sb = STRBUF_INIT;
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int fd;
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if (write_shallow_commits(&sb, 0)) {
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struct strbuf path = STRBUF_INIT;
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strbuf_addstr(&path, git_path("shallow_XXXXXX"));
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fd = xmkstemp(path.buf);
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if (write_in_full(fd, sb.buf, sb.len) != sb.len)
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die_errno("failed to write to %s",
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path.buf);
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close(fd);
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strbuf_release(&sb);
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return strbuf_detach(&path, NULL);
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}
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/*
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* is_repository_shallow() sees empty string as "no shallow
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* file".
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*/
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return xstrdup("");
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}
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void setup_alternate_shallow(struct lock_file *shallow_lock,
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const char **alternate_shallow_file)
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{
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