Make git-stripspace a builtin

Signed-off-by: Lukas Sandström <lukass@etek.chalmers.se>
Signed-off-by: Junio C Hamano <junkio@cox.net>

Makefile

@@ -144,7 +144,7 @@ SCRIPTS = $(patsubst %.sh,%,$(SCRIPT_SH)) \
 
 # The ones that do not have to link with lcrypto, lz nor xdiff.
 SIMPLE_PROGRAMS = \
-	git-stripspace$X git-daemon$X
+	git-daemon$X
 
 # ... and all the rest that could be moved out of bindir to gitexecdir
 PROGRAMS = \
@@ -165,7 +165,7 @@ PROGRAMS = \
 
 BUILT_INS = git-log$X git-whatchanged$X git-show$X \
 	git-count-objects$X git-diff$X git-push$X git-mailsplit$X \
-	git-grep$X git-add$X git-rm$X git-rev-list$X \
+	git-grep$X git-add$X git-rm$X git-rev-list$X git-stripspace$X \
 	git-check-ref-format$X git-rev-parse$X git-mailinfo$X \
 	git-init-db$X git-tar-tree$X git-upload-tar$X git-format-patch$X \
 	git-ls-files$X git-ls-tree$X git-get-tar-commit-id$X \
@@ -226,7 +226,7 @@ BUILTIN_OBJS = \
 	builtin-read-tree.o builtin-commit-tree.o builtin-mailinfo.o \
 	builtin-apply.o builtin-show-branch.o builtin-diff-files.o \
 	builtin-diff-index.o builtin-diff-stages.o builtin-diff-tree.o \
-	builtin-cat-file.o builtin-mailsplit.o
+	builtin-cat-file.o builtin-mailsplit.o builtin-stripspace.o
 
 GITLIBS = $(LIB_FILE) $(XDIFF_LIB)
 LIBS = $(GITLIBS) -lz

builtin-stripspace.c

@@ -1,6 +1,7 @@
 #include <stdio.h>
 #include <string.h>
 #include <ctype.h>
+#include "builtin.h"
 
 /*
  * Remove empty lines from the beginning and end.
@@ -28,21 +29,21 @@ static int cleanup(char *line)
 	return 1;
 }
 
-int main(int argc, char **argv)
+void stripspace(FILE *in, FILE *out)
 {
 	int empties = -1;
 	int incomplete = 0;
 	char line[1024];
 
-	while (fgets(line, sizeof(line), stdin)) {
+	while (fgets(line, sizeof(line), in)) {
 		incomplete = cleanup(line);
 
 		/* Not just an empty line? */
 		if (line[0] != '\n') {
 			if (empties > 0)
-				putchar('\n');
+				fputc('\n', out);
 			empties = 0;
-			fputs(line, stdout);
+			fputs(line, out);
 			continue;
 		}
 		if (empties < 0)
@@ -50,6 +51,11 @@ int main(int argc, char **argv)
 		empties++;
 	}
 	if (incomplete)
-		putchar('\n');
+		fputc('\n', out);
+}
+
+int cmd_stripspace(int argc, const char **argv, char **envp)
+{
+	stripspace(stdin, stdout);
 	return 0;
 }

builtin.h

@@ -56,4 +56,7 @@ extern int split_mbox(const char **mbox, const char *dir, int allow_bare, int nr
 
 extern int cmd_mailinfo(int argc, const char **argv, char **envp);
 extern int mailinfo(FILE *in, FILE *out, int ks, const char *encoding, const char *msg, const char *patch);
+
+extern int cmd_stripspace(int argc, const char **argv, char **envp);
+extern void stripspace(FILE *in, FILE *out);
 #endif

git.c

@@ -181,7 +181,8 @@ static void handle_internal_command(int argc, const char **argv, char **envp)
 		{ "rev-parse", cmd_rev_parse },
 		{ "write-tree", cmd_write_tree },
 		{ "mailsplit", cmd_mailsplit },
-		{ "mailinfo", cmd_mailinfo }
+		{ "mailinfo", cmd_mailinfo },
+		{ "stripspace", cmd_stripspace }
 	};
 	int i;