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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-05-30 19:51:00 (GMT)
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-05-30 19:51:00 (GMT)
commita3e870f2e2bcacc80d5b81d7b77c15a7928a9082 (patch)
tree58f726b5db2132fe3c76e92253c3504dd80272e1 /stripspace.c
parentf345b0a066572206aac4a4f9a57d746e213b6bff (diff)
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Add "commit" helper script
This is meant to make raw git not hugely less usable than something like raw CVS. I want to make a 1.0 release of the plumbing, and the actual commit part was just too intimidating.
Diffstat (limited to 'stripspace.c')
-rw-r--r--stripspace.c48
1 files changed, 48 insertions, 0 deletions
diff --git a/stripspace.c b/stripspace.c
new file mode 100644
index 0000000..96cd0a8
--- /dev/null
+++ b/stripspace.c
@@ -0,0 +1,48 @@
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+
+/*
+ * Remove empty lines from the beginning and end.
+ *
+ * Turn multiple consecutive empty lines into just one
+ * empty line.
+ */
+static void cleanup(char *line)
+{
+ int len = strlen(line);
+
+ if (len > 1 && line[len-1] == '\n') {
+ do {
+ unsigned char c = line[len-2];
+ if (!isspace(c))
+ break;
+ line[len-2] = '\n';
+ len--;
+ line[len] = 0;
+ } while (len > 1);
+ }
+}
+
+int main(int argc, char **argv)
+{
+ int empties = -1;
+ char line[1024];
+
+ while (fgets(line, sizeof(line), stdin)) {
+ cleanup(line);
+
+ /* Not just an empty line? */
+ if (line[0] != '\n') {
+ if (empties > 0)
+ putchar('\n');
+ empties = 0;
+ fputs(line, stdout);
+ continue;
+ }
+ if (empties < 0)
+ continue;
+ empties++;
+ }
+ return 0;
+}