X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=src%2Flibgit2%2Fconfig_cache.c;fp=src%2Flibgit2%2Fconfig_cache.c;h=4bb91f52b9f254b8203ba524aef11993e83101bf;hb=cc43b7442ea25e6846b10718cd9b1f1972fcd2fc;hp=0000000000000000000000000000000000000000;hpb=ab27e46e5f1c31d3d7b7aa560dab3bb70bd1218b;p=libgit2.git

diff --git a/src/libgit2/config_cache.c b/src/libgit2/config_cache.c
new file mode 100644
index 000000000..4bb91f52b
--- /dev/null
+++ b/src/libgit2/config_cache.c
@@ -0,0 +1,142 @@
+/*
+ * Copyright (C) the libgit2 contributors. All rights reserved.
+ *
+ * This file is part of libgit2, distributed under the GNU GPL v2 with
+ * a Linking Exception. For full terms see the included COPYING file.
+ */
+
+#include "common.h"
+
+#include "futils.h"
+#include "repository.h"
+#include "config.h"
+#include "git2/config.h"
+#include "vector.h"
+#include "filter.h"
+
+struct map_data {
+	const char *name;
+	git_configmap *maps;
+	size_t map_count;
+	int default_value;
+};
+
+/*
+ *	core.eol
+ *		Sets the line ending type to use in the working directory for
+ *	files that have the text property set. Alternatives are lf, crlf
+ *	and native, which uses the platform's native line ending. The default
+ *	value is native. See gitattributes(5) for more information on
+ *	end-of-line conversion.
+ */
+static git_configmap _configmap_eol[] = {
+	{GIT_CONFIGMAP_FALSE, NULL, GIT_EOL_UNSET},
+	{GIT_CONFIGMAP_STRING, "lf", GIT_EOL_LF},
+	{GIT_CONFIGMAP_STRING, "crlf", GIT_EOL_CRLF},
+	{GIT_CONFIGMAP_STRING, "native", GIT_EOL_NATIVE}
+};
+
+/*
+ *	core.autocrlf
+ *		Setting this variable to "true" is almost the same as setting
+ *	the text attribute to "auto" on all files except that text files are
+ *	not guaranteed to be normalized: files that contain CRLF in the
+ *	repository will not be touched. Use this setting if you want to have
+ *	CRLF line endings in your working directory even though the repository
+ *	does not have normalized line endings. This variable can be set to input,
+ *	in which case no output conversion is performed.
+ */
+static git_configmap _configmap_autocrlf[] = {
+	{GIT_CONFIGMAP_FALSE, NULL, GIT_AUTO_CRLF_FALSE},
+	{GIT_CONFIGMAP_TRUE, NULL, GIT_AUTO_CRLF_TRUE},
+	{GIT_CONFIGMAP_STRING, "input", GIT_AUTO_CRLF_INPUT}
+};
+
+static git_configmap _configmap_safecrlf[] = {
+	{GIT_CONFIGMAP_FALSE, NULL, GIT_SAFE_CRLF_FALSE},
+	{GIT_CONFIGMAP_TRUE, NULL, GIT_SAFE_CRLF_FAIL},
+	{GIT_CONFIGMAP_STRING, "warn", GIT_SAFE_CRLF_WARN}
+};
+
+static git_configmap _configmap_logallrefupdates[] = {
+	{GIT_CONFIGMAP_FALSE, NULL, GIT_LOGALLREFUPDATES_FALSE},
+	{GIT_CONFIGMAP_TRUE, NULL, GIT_LOGALLREFUPDATES_TRUE},
+	{GIT_CONFIGMAP_STRING, "always", GIT_LOGALLREFUPDATES_ALWAYS},
+};
+
+/*
+ * Generic map for integer values
+ */
+static git_configmap _configmap_int[] = {
+	{GIT_CONFIGMAP_INT32, NULL, 0},
+};
+
+static struct map_data _configmaps[] = {
+	{"core.autocrlf", _configmap_autocrlf, ARRAY_SIZE(_configmap_autocrlf), GIT_AUTO_CRLF_DEFAULT},
+	{"core.eol", _configmap_eol, ARRAY_SIZE(_configmap_eol), GIT_EOL_DEFAULT},
+	{"core.symlinks", NULL, 0, GIT_SYMLINKS_DEFAULT },
+	{"core.ignorecase", NULL, 0, GIT_IGNORECASE_DEFAULT },
+	{"core.filemode", NULL, 0, GIT_FILEMODE_DEFAULT },
+	{"core.ignorestat", NULL, 0, GIT_IGNORESTAT_DEFAULT },
+	{"core.trustctime", NULL, 0, GIT_TRUSTCTIME_DEFAULT },
+	{"core.abbrev", _configmap_int, 1, GIT_ABBREV_DEFAULT },
+	{"core.precomposeunicode", NULL, 0, GIT_PRECOMPOSE_DEFAULT },
+	{"core.safecrlf", _configmap_safecrlf, ARRAY_SIZE(_configmap_safecrlf), GIT_SAFE_CRLF_DEFAULT},
+	{"core.logallrefupdates", _configmap_logallrefupdates, ARRAY_SIZE(_configmap_logallrefupdates), GIT_LOGALLREFUPDATES_DEFAULT},
+	{"core.protecthfs", NULL, 0, GIT_PROTECTHFS_DEFAULT },
+	{"core.protectntfs", NULL, 0, GIT_PROTECTNTFS_DEFAULT },
+	{"core.fsyncobjectfiles", NULL, 0, GIT_FSYNCOBJECTFILES_DEFAULT },
+	{"core.longpaths", NULL, 0, GIT_LONGPATHS_DEFAULT },
+};
+
+int git_config__configmap_lookup(int *out, git_config *config, git_configmap_item item)
+{
+	int error = 0;
+	struct map_data *data = &_configmaps[(int)item];
+	git_config_entry *entry;
+
+	if ((error = git_config__lookup_entry(&entry, config, data->name, false)) < 0)
+		return error;
+
+	if (!entry)
+		*out = data->default_value;
+	else if (data->maps)
+		error = git_config_lookup_map_value(
+			out, data->maps, data->map_count, entry->value);
+	else
+		error = git_config_parse_bool(out, entry->value);
+
+	git_config_entry_free(entry);
+	return error;
+}
+
+int git_repository__configmap_lookup(int *out, git_repository *repo, git_configmap_item item)
+{
+	intptr_t value = (intptr_t)git_atomic_load(repo->configmap_cache[(int)item]);
+
+	*out = (int)value;
+
+	if (value == GIT_CONFIGMAP_NOT_CACHED) {
+		git_config *config;
+		intptr_t oldval = value;
+		int error;
+
+		if ((error = git_repository_config__weakptr(&config, repo)) < 0 ||
+			(error = git_config__configmap_lookup(out, config, item)) < 0)
+			return error;
+
+		value = *out;
+		git_atomic_compare_and_swap(&repo->configmap_cache[(int)item], (void *)oldval, (void *)value);
+	}
+
+	return 0;
+}
+
+void git_repository__configmap_lookup_cache_clear(git_repository *repo)
+{
+	int i;
+
+	for (i = 0; i < GIT_CONFIGMAP_CACHE_MAX; ++i)
+		repo->configmap_cache[i] = GIT_CONFIGMAP_NOT_CACHED;
+}
+