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-rw-r--r--builtin/stripspace.c69
1 files changed, 69 insertions, 0 deletions
diff --git a/builtin/stripspace.c b/builtin/stripspace.c
new file mode 100644
index 0000000..7b700a9
--- /dev/null
+++ b/builtin/stripspace.c
@@ -0,0 +1,69 @@
+#include "builtin.h"
+#include "config.h"
+#include "environment.h"
+#include "gettext.h"
+#include "parse-options.h"
+#include "setup.h"
+#include "strbuf.h"
+#include "write-or-die.h"
+
+static void comment_lines(struct strbuf *buf)
+{
+ char *msg;
+ size_t len;
+
+ msg = strbuf_detach(buf, &len);
+ strbuf_add_commented_lines(buf, msg, len, comment_line_char);
+ free(msg);
+}
+
+static const char * const stripspace_usage[] = {
+ "git stripspace [-s | --strip-comments]",
+ "git stripspace [-c | --comment-lines]",
+ NULL
+};
+
+enum stripspace_mode {
+ STRIP_DEFAULT = 0,
+ STRIP_COMMENTS,
+ COMMENT_LINES
+};
+
+int cmd_stripspace(int argc, const char **argv, const char *prefix)
+{
+ struct strbuf buf = STRBUF_INIT;
+ enum stripspace_mode mode = STRIP_DEFAULT;
+ int nongit;
+
+ const struct option options[] = {
+ OPT_CMDMODE('s', "strip-comments", &mode,
+ N_("skip and remove all lines starting with comment character"),
+ STRIP_COMMENTS),
+ OPT_CMDMODE('c', "comment-lines", &mode,
+ N_("prepend comment character and space to each line"),
+ COMMENT_LINES),
+ OPT_END()
+ };
+
+ argc = parse_options(argc, argv, prefix, options, stripspace_usage, 0);
+ if (argc)
+ usage_with_options(stripspace_usage, options);
+
+ if (mode == STRIP_COMMENTS || mode == COMMENT_LINES) {
+ setup_git_directory_gently(&nongit);
+ git_config(git_default_config, NULL);
+ }
+
+ if (strbuf_read(&buf, 0, 1024) < 0)
+ die_errno("could not read the input");
+
+ if (mode == STRIP_DEFAULT || mode == STRIP_COMMENTS)
+ strbuf_stripspace(&buf,
+ mode == STRIP_COMMENTS ? comment_line_char : '\0');
+ else
+ comment_lines(&buf);
+
+ write_or_die(1, buf.buf, buf.len);
+ strbuf_release(&buf);
+ return 0;
+}