Merge branch 'maint-1.5.1' into maint

* maint-1.5.1:
  git-status: respect core.excludesFile
  SubmittingPatches: mention older C compiler compatibility
  git-daemon: don't ignore pid-file write failure

Documentation/SubmittingPatches

@@ -65,6 +65,19 @@ in templates/hooks--pre-commit.  To help ensure this does not happen,
 run git diff --check on your changes before you commit.
 
 
+(1a) Try to be nice to older C compilers
+
+We try to support wide range of C compilers to compile
+git with. That means that you should not use C99 initializers, even
+if a lot of compilers grok it.
+
+Also, variables have to be declared at the beginning of the block
+(you can check this with gcc, using the -Wdeclaration-after-statement
+option).
+
+Another thing: NULL pointers shall be written as NULL, not as 0.
+
+
 (2) Generate your patch using git tools out of your commits.
 
 git based diff tools (git, Cogito, and StGIT included) generate

Documentation/config.txt

@@ -263,6 +263,11 @@ You probably do not need to adjust this value.
 +
 Common unit suffixes of 'k', 'm', or 'g' are supported.
 
+core.excludeFile::
+	In addition to '.gitignore' (per-directory) and
+	'.git/info/exclude', git looks into this file for patterns
+	of files which are not meant to be tracked.
+
 alias.*::
 	Command aliases for the gitlink:git[1] command wrapper - e.g.
 	after defining "alias.last = cat-file commit HEAD", the invocation

Documentation/git-status.txt

@@ -42,6 +42,11 @@ mean the same thing and the latter is kept for backward
 compatibility) and `color.status.<slot>` configuration variables
 to colorize its output.
 
+As for gitlink:git-add[1], the configuration variable
+'core.excludesfile' can indicate a path to a file containing patterns
+of file names to exclude, in addition to patterns given in
+'info/exclude' and '.gitignore'.
+
 
 Author
 ------

daemon.c

@@ -970,8 +970,8 @@ static void store_pid(const char *path)
 	FILE *f = fopen(path, "w");
 	if (!f)
 		die("cannot open pid file %s: %s", path, strerror(errno));
-	fprintf(f, "%d\n", getpid());
-	fclose(f);
+	if (fprintf(f, "%d\n", getpid()) < 0 || fclose(f) != 0)
+		die("failed to write pid file %s: %s", path, strerror(errno));
 }
 
 static int serve(char *listen_addr, int listen_port, struct passwd *pass, gid_t gid)

t/t3001-ls-files-others-exclude.sh

@@ -79,4 +79,24 @@ test_expect_success \
        >output &&
      git diff expect output'
 
+cat > excludes-file << EOF
+*.[1-8]
+e*
+EOF
+
+git-config core.excludesFile excludes-file
+
+git-runstatus | grep "^#	" > output
+
+cat > expect << EOF
+#	.gitignore
+#	a.6
+#	one/
+#	output
+#	three/
+EOF
+
+test_expect_success 'git-status honours core.excludesfile' \
+	'diff -u expect output'
+
 test_done

wt-status.c

@@ -22,6 +22,7 @@ static const char use_add_rm_msg[] =
 "use \"git add/rm <file>...\" to update what will be committed";
 static const char use_add_to_include_msg[] =
 "use \"git add <file>...\" to include in what will be committed";
+static const char *excludes_file;
 
 static int parse_status_slot(const char *var, int offset)
 {
@@ -259,6 +260,8 @@ static void wt_status_print_untracked(struct wt_status *s)
 	x = git_path("info/exclude");
 	if (file_exists(x))
 		add_excludes_from_file(&dir, x);
+	if (excludes_file && file_exists(excludes_file))
+		add_excludes_from_file(&dir, excludes_file);
 
 	read_directory(&dir, ".", "", 0, NULL);
 	for(i = 0; i < dir.nr; i++) {
@@ -356,5 +359,11 @@ int git_status_config(const char *k, const char *v)
 		int slot = parse_status_slot(k, 13);
 		color_parse(v, k, wt_status_colors[slot]);
 	}
+	if (!strcmp(k, "core.excludesfile")) {
+		if (!v)
+			die("core.excludesfile without value");
+		excludes_file = xstrdup(v);
+		return 0;
+	}
 	return git_default_config(k, v);
 }