ident.h: move ident-related declarations out of cache.h

These functions were all defined in a separate ident.c already, so
create ident.h and move the declarations into that file.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 67 insertions, 0 deletions

diff --git a/ident.h b/ident.h
new file mode 100644
index 0000000000..96a64896a0
--- /dev/null
+++ b/ident.h
@@ -0,0 +1,67 @@
+#ifndef IDENT_H
+#define IDENT_H
+
+#include "string-list.h"
+
+struct ident_split {
+	const char *name_begin;
+	const char *name_end;
+	const char *mail_begin;
+	const char *mail_end;
+	const char *date_begin;
+	const char *date_end;
+	const char *tz_begin;
+	const char *tz_end;
+};
+
+#define IDENT_STRICT	       1
+#define IDENT_NO_DATE	       2
+#define IDENT_NO_NAME	       4
+
+enum want_ident {
+	WANT_BLANK_IDENT,
+	WANT_AUTHOR_IDENT,
+	WANT_COMMITTER_IDENT
+};
+
+const char *ident_default_name(void);
+const char *ident_default_email(void);
+/*
+ * Prepare an ident to fall back on if the user didn't configure it.
+ */
+void prepare_fallback_ident(const char *name, const char *email);
+void reset_ident_date(void);
+/*
+ * Signals an success with 0, but time part of the result may be NULL
+ * if the input lacks timestamp and zone
+ */
+int split_ident_line(struct ident_split *, const char *, int);
+
+/*
+ * Given a commit or tag object buffer and the commit or tag headers, replaces
+ * the idents in the headers with their canonical versions using the mailmap mechanism.
+ */
+void apply_mailmap_to_header(struct strbuf *, const char **, struct string_list *);
+
+/*
+ * Compare split idents for equality or strict ordering. Note that we
+ * compare only the ident part of the line, ignoring any timestamp.
+ *
+ * Because there are two fields, we must choose one as the primary key; we
+ * currently arbitrarily pick the email.
+ */
+int ident_cmp(const struct ident_split *, const struct ident_split *);
+
+const char *git_author_info(int);
+const char *git_committer_info(int);
+const char *fmt_ident(const char *name, const char *email,
+		      enum want_ident whose_ident,
+		      const char *date_str, int);
+const char *fmt_name(enum want_ident);
+
+int committer_ident_sufficiently_given(void);
+int author_ident_sufficiently_given(void);
+
+int git_ident_config(const char *, const char *, void *);
+
+#endif