mingw: ensure that core.longPaths is handled *always*

A ton of Git commands simply do not read (or at least parse) the core.*
settings. This is not good, as Git for Windows relies on the
core.longPaths setting to be read quite early on.

So let's just make sure that all commands read the config and give
platform_core_config() a chance.

This patch teaches tons of Git commands to respect the config setting
`core.longPaths = true`, including `pack-refs`, thereby fixing
#1218

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

Author: dscho

builtin/archive.c

@@ -9,6 +9,7 @@
 #include "parse-options.h"
 #include "pkt-line.h"
 #include "sideband.h"
+#include "config.h"
 
 static void create_output_file(const char *output_file)
 {
@@ -93,6 +94,7 @@ int cmd_archive(int argc, const char **argv, const char *prefix)
 		OPT_END()
 	};
 
+	git_config(git_default_config, NULL);
 	argc = parse_options(argc, argv, prefix, local_opts, NULL,
 			     PARSE_OPT_KEEP_ALL);
 

builtin/bisect--helper.c

@@ -9,6 +9,7 @@
 #include "prompt.h"
 #include "quote.h"
 #include "revision.h"
+#include "config.h"
 
 static GIT_PATH_FUNC(git_path_bisect_terms, "BISECT_TERMS")
 static GIT_PATH_FUNC(git_path_bisect_expected_rev, "BISECT_EXPECTED_REV")
@@ -1277,6 +1278,7 @@ int cmd_bisect__helper(int argc, const char **argv, const char *prefix)
 	};
 	struct bisect_terms terms = { .term_good = NULL, .term_bad = NULL };
 
+	git_config(git_default_config, NULL);
 	argc = parse_options(argc, argv, prefix, options,
 			     git_bisect_helper_usage,
 			     PARSE_OPT_KEEP_DASHDASH | PARSE_OPT_KEEP_UNKNOWN);

builtin/bundle.c

@@ -3,6 +3,7 @@
 #include "parse-options.h"
 #include "cache.h"
 #include "bundle.h"
+#include "config.h"
 
 /*
  * Basic handler for bundle files to connect repositories via sneakernet.
@@ -110,6 +111,7 @@ static int cmd_bundle_verify(int argc, const char **argv, const char *prefix) {
 	};
 	char *bundle_file;
 
+	git_config(git_default_config, NULL);
 	argc = parse_options_cmd_bundle(argc, argv, prefix,
 			builtin_bundle_verify_usage, options, &bundle_file);
 	/* bundle internals use argv[1] as further parameters */

builtin/check-ref-format.c

@@ -6,6 +6,7 @@
 #include "refs.h"
 #include "builtin.h"
 #include "strbuf.h"
+#include "config.h"
 
 static const char builtin_check_ref_format_usage[] =
 "git check-ref-format [--normalize] [<options>] <refname>\n"
@@ -58,6 +59,7 @@ int cmd_check_ref_format(int argc, const char **argv, const char *prefix)
 	int flags = 0;
 	const char *refname;
 
+	git_config(git_default_config, NULL);
 	if (argc == 2 && !strcmp(argv[1], "-h"))
 		usage(builtin_check_ref_format_usage);
 

builtin/clone.c

@@ -890,6 +890,8 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
 	struct transport_ls_refs_options transport_ls_refs_options =
 		TRANSPORT_LS_REFS_OPTIONS_INIT;
 
+	git_config(git_default_core_config, NULL);
+
 	packet_trace_identity("clone");
 
 	git_config(git_clone_config, NULL);

builtin/column.c

@@ -34,6 +34,8 @@ int cmd_column(int argc, const char **argv, const char *prefix)
 		OPT_END()
 	};
 
+	git_config(git_default_core_config, NULL);
+
 	/* This one is special and must be the first one */
 	if (argc > 1 && starts_with(argv[1], "--command=")) {
 		command = argv[1] + 10;

builtin/credential-store.c

@@ -4,6 +4,7 @@
 #include "credential.h"
 #include "string-list.h"
 #include "parse-options.h"
+#include "config.h"
 
 static struct lock_file credential_lock;
 
@@ -165,6 +166,8 @@ int cmd_credential_store(int argc, const char **argv, const char *prefix)
 
 	umask(077);
 
+	git_config(git_default_config, NULL);
+
 	argc = parse_options(argc, (const char **)argv, prefix, options, usage, 0);
 	if (argc != 1)
 		usage_with_options(usage, options);

builtin/fetch-pack.c

@@ -5,6 +5,7 @@
 #include "connect.h"
 #include "oid-array.h"
 #include "protocol.h"
+#include "config.h"
 
 static const char fetch_pack_usage[] =
 "git fetch-pack [--all] [--stdin] [--quiet | -q] [--keep | -k] [--thin] "
@@ -57,6 +58,7 @@ int cmd_fetch_pack(int argc, const char **argv, const char *prefix)
 	struct packet_reader reader;
 	enum protocol_version version;
 
+	git_config(git_default_config, NULL);
 	fetch_if_missing = 0;
 
 	packet_trace_identity("fetch-pack");

builtin/get-tar-commit-id.c

@@ -6,6 +6,7 @@
 #include "tar.h"
 #include "builtin.h"
 #include "quote.h"
+#include "config.h"
 
 static const char builtin_get_tar_commit_id_usage[] =
 "git get-tar-commit-id";
@@ -27,6 +28,7 @@ int cmd_get_tar_commit_id(int argc, const char **argv, const char *prefix)
 	if (argc != 1)
 		usage(builtin_get_tar_commit_id_usage);
 
+	git_config(git_default_config, NULL);
 	n = read_in_full(0, buffer, HEADERSIZE);
 	if (n < 0)
 		die_errno("git get-tar-commit-id: read error");

builtin/log.c

@@ -2347,6 +2347,7 @@ int cmd_cherry(int argc, const char **argv, const char *prefix)
 		OPT_END()
 	};
 
+	git_config(git_default_config, NULL);
 	argc = parse_options(argc, argv, prefix, options, cherry_usage, 0);
 
 	switch (argc) {