Adding upstream version 1:2.39.2.upstream/1%2.39.2upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 177 insertions, 0 deletions

diff --git a/list-objects-filter-options.h b/list-objects-filter-options.h
new file mode 100644
index 0000000..7eeadab
--- /dev/null
+++ b/list-objects-filter-options.h
@@ -0,0 +1,177 @@
+#ifndef LIST_OBJECTS_FILTER_OPTIONS_H
+#define LIST_OBJECTS_FILTER_OPTIONS_H
+
+#include "cache.h"
+#include "parse-options.h"
+#include "string-list.h"
+
+/*
+ * The list of defined filters for list-objects.
+ */
+enum list_objects_filter_choice {
+	LOFC_DISABLED = 0,
+	LOFC_BLOB_NONE,
+	LOFC_BLOB_LIMIT,
+	LOFC_TREE_DEPTH,
+	LOFC_SPARSE_OID,
+	LOFC_OBJECT_TYPE,
+	LOFC_COMBINE,
+	LOFC__COUNT /* must be last */
+};
+
+/*
+ * Returns a configuration key suitable for describing the given object filter,
+ * e.g.: "blob:none", "combine", etc.
+ */
+const char *list_object_filter_config_name(enum list_objects_filter_choice c);
+
+struct list_objects_filter_options {
+	/*
+	 * 'filter_spec' is the raw argument value given on the command line
+	 * or protocol request.  (The part after the "--keyword=".)  For
+	 * commands that launch filtering sub-processes, or for communication
+	 * over the network, don't use this value; use the result of
+	 * expand_list_objects_filter_spec() instead.
+	 * To get the raw filter spec given by the user, use the result of
+	 * list_objects_filter_spec().
+	 */
+	struct strbuf filter_spec;
+
+	/*
+	 * 'choice' is determined by parsing the filter-spec.  This indicates
+	 * the filtering algorithm to use.
+	 */
+	enum list_objects_filter_choice choice;
+
+	/*
+	 * Choice is LOFC_DISABLED because "--no-filter" was requested.
+	 */
+	unsigned int no_filter : 1;
+
+	/*
+	 * BEGIN choice-specific parsed values from within the filter-spec. Only
+	 * some values will be defined for any given choice.
+	 */
+
+	char *sparse_oid_name;
+	unsigned long blob_limit_value;
+	unsigned long tree_exclude_depth;
+	enum object_type object_type;
+
+	/* LOFC_COMBINE values */
+
+	/* This array contains all the subfilters which this filter combines. */
+	size_t sub_nr, sub_alloc;
+	struct list_objects_filter_options *sub;
+
+	/*
+	 * END choice-specific parsed values.
+	 */
+};
+
+#define LIST_OBJECTS_FILTER_INIT { .filter_spec = STRBUF_INIT }
+void list_objects_filter_init(struct list_objects_filter_options *filter_options);
+
+/*
+ * Parse value of the argument to the "filter" keyword.
+ * On the command line this looks like:
+ *       --filter=<arg>
+ * and in the pack protocol as:
+ *       "filter" SP <arg>
+ *
+ * The filter keyword will be used by many commands.
+ * See Documentation/rev-list-options.txt for allowed values for <arg>.
+ *
+ * Capture the given arg as the "filter_spec".  This can be forwarded to
+ * subordinate commands when necessary (although it's better to pass it through
+ * expand_list_objects_filter_spec() first).  We also "intern" the arg for the
+ * convenience of the current command.
+ */
+int gently_parse_list_objects_filter(
+	struct list_objects_filter_options *filter_options,
+	const char *arg,
+	struct strbuf *errbuf);
+
+void list_objects_filter_die_if_populated(
+	struct list_objects_filter_options *filter_options);
+
+/*
+ * Parses the filter spec string given by arg and either (1) simply places the
+ * result in filter_options if it is not yet populated or (2) combines it with
+ * the filter already in filter_options if it is already populated. In the case
+ * of (2), the filter specs are combined as if specified with 'combine:'.
+ *
+ * Dies and prints a user-facing message if an error occurs.
+ */
+void parse_list_objects_filter(
+	struct list_objects_filter_options *filter_options,
+	const char *arg);
+
+/**
+ * The opt->value to opt_parse_list_objects_filter() is either a
+ * "struct list_objects_filter_option *" when using
+ * OPT_PARSE_LIST_OBJECTS_FILTER().
+ *
+ * Or, if using no "struct option" field is used by the callback,
+ * except the "defval" which is expected to be an "opt_lof_init"
+ * function, which is called with the "opt->value" and must return a
+ * pointer to the ""struct list_objects_filter_option *" to be used.
+ *
+ * The OPT_PARSE_LIST_OBJECTS_FILTER_INIT() can be used e.g. the
+ * "struct list_objects_filter_option" is embedded in a "struct
+ * rev_info", which the "defval" could be tasked with lazily
+ * initializing. See cmd_pack_objects() for an example.
+ */
+int opt_parse_list_objects_filter(const struct option *opt,
+				  const char *arg, int unset);
+typedef struct list_objects_filter_options *(*opt_lof_init)(void *);
+#define OPT_PARSE_LIST_OBJECTS_FILTER_INIT(fo, init) \
+	{ OPTION_CALLBACK, 0, "filter", (fo), N_("args"), \
+	  N_("object filtering"), 0, opt_parse_list_objects_filter, \
+	  (intptr_t)(init) }
+
+#define OPT_PARSE_LIST_OBJECTS_FILTER(fo) \
+	OPT_PARSE_LIST_OBJECTS_FILTER_INIT((fo), NULL)
+
+/*
+ * Translates abbreviated numbers in the filter's filter_spec into their
+ * fully-expanded forms (e.g., "limit:blob=1k" becomes "limit:blob=1024").
+ * Returns a string owned by the list_objects_filter_options object.
+ *
+ * This form should be used instead of the raw list_objects_filter_spec()
+ * value when communicating with a remote process or subprocess.
+ */
+const char *expand_list_objects_filter_spec(
+	struct list_objects_filter_options *filter);
+
+/*
+ * Returns the filter spec string more or less in the form as the user
+ * entered it. This form of the filter_spec can be used in user-facing
+ * messages.  Returns a string owned by the list_objects_filter_options
+ * object.
+ */
+const char *list_objects_filter_spec(
+	struct list_objects_filter_options *filter);
+
+void list_objects_filter_release(
+	struct list_objects_filter_options *filter_options);
+
+static inline void list_objects_filter_set_no_filter(
+	struct list_objects_filter_options *filter_options)
+{
+	list_objects_filter_release(filter_options);
+	filter_options->no_filter = 1;
+}
+
+void partial_clone_register(
+	const char *remote,
+	struct list_objects_filter_options *filter_options);
+void partial_clone_get_default_filter_spec(
+	struct list_objects_filter_options *filter_options,
+	const char *remote);
+
+void list_objects_filter_copy(
+	struct list_objects_filter_options *dest,
+	const struct list_objects_filter_options *src);
+
+#endif /* LIST_OBJECTS_FILTER_OPTIONS_H */