X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=builtin-blame.c;h=e17b03d876a7da13ac4f01f50c2e0c459d3e9612;hb=10455d2a955a29db1809be139177e4e298771eb0;hp=35471fc2615992451c8c5b51a346fe171029b572;hpb=679c7c56ed9f73db5892fe17ef9b67b84b0ca242;p=git.git

diff --git a/builtin-blame.c b/builtin-blame.c
index 35471fc26..e17b03d87 100644
--- a/builtin-blame.c
+++ b/builtin-blame.c
@@ -20,7 +20,7 @@
 #include "mailmap.h"
 
 static char blame_usage[] =
-"git-blame [-c] [-b] [-l] [--root] [-t] [-f] [-n] [-s] [-p] [-L n,m] [-S <revs-file>] [-M] [-C] [-C] [--contents <filename>] [--incremental] [commit] [--] file\n"
+"git-blame [-c] [-b] [-l] [--root] [-t] [-f] [-n] [-s] [-p] [-w] [-L n,m] [-S <revs-file>] [-M] [-C] [-C] [--contents <filename>] [--incremental] [commit] [--] file\n"
 "  -c                  Use the same output mode as git-annotate (Default: off)\n"
 "  -b                  Show blank SHA-1 for boundary commits (Default: off)\n"
 "  -l                  Show long commit SHA1 (Default: off)\n"
@@ -30,6 +30,7 @@ static char blame_usage[] =
 "  -n, --show-number   Show original linenumber (Default: off)\n"
 "  -s                  Suppress author name and timestamp (Default: off)\n"
 "  -p, --porcelain     Show in a format designed for machine consumption\n"
+"  -w                  Ignore whitespace differences\n"
 "  -L n,m              Process only line range n,m, counting from 1\n"
 "  -M, -C              Find line movements within and across files\n"
 "  --incremental       Show blame entries as we find them, incrementally\n"
@@ -45,6 +46,7 @@ static int show_root;
 static int blank_boundary;
 static int incremental;
 static int cmd_is_annotate;
+static int xdl_opts = XDF_NEED_MINIMAL;
 static struct path_list mailmap;
 
 #ifndef DEBUG
@@ -96,6 +98,10 @@ static char *fill_origin_blob(struct origin *o, mmfile_t *file)
 		num_read_blob++;
 		file->ptr = read_sha1_file(o->blob_sha1, &type,
 					   (unsigned long *)(&(file->size)));
+		if (!file->ptr)
+			die("Cannot read blob %s for path %s",
+			    sha1_to_hex(o->blob_sha1),
+			    o->path);
 		o->file = *file;
 	}
 	else
@@ -515,9 +521,9 @@ static struct patch *compare_buffer(mmfile_t *file_p, mmfile_t *file_o,
 	xdemitconf_t xecfg;
 	xdemitcb_t ecb;
 
-	xpp.flags = XDF_NEED_MINIMAL;
+	xpp.flags = xdl_opts;
+	memset(&xecfg, 0, sizeof(xecfg));
 	xecfg.ctxlen = context;
-	xecfg.flags = 0;
 	ecb.outf = xdiff_outf;
 	ecb.priv = &state;
 	memset(&state, 0, sizeof(state));
@@ -1382,6 +1388,9 @@ static void get_commit_info(struct commit *commit,
 		unsigned long size;
 		commit->buffer =
 			read_sha1_file(commit->object.sha1, &type, &size);
+		if (!commit->buffer)
+			die("Cannot read commit %s",
+			    sha1_to_hex(commit->object.sha1));
 	}
 	ret->author = author_buf;
 	get_ac_line(commit->buffer, "\nauthor ",
@@ -1457,6 +1466,7 @@ static void found_guilty_entry(struct blame_entry *ent)
 				printf("boundary\n");
 		}
 		write_filename_info(suspect->path);
+		maybe_flush_or_die(stdout, "stdout");
 	}
 }
 
@@ -1744,11 +1754,11 @@ static int read_ancestry(const char *graft_file)
  */
 static int lineno_width(int lines)
 {
-        int i, width;
+	int i, width;
 
-        for (width = 1, i = 10; i <= lines + 1; width++)
-                i *= 10;
-        return width;
+	for (width = 1, i = 10; i <= lines + 1; width++)
+		i *= 10;
+	return width;
 }
 
 /*
@@ -2159,6 +2169,8 @@ int cmd_blame(int argc, const char **argv, const char *prefix)
 			output_option |= OUTPUT_LONG_OBJECT_NAME;
 		else if (!strcmp("-s", arg))
 			output_option |= OUTPUT_NO_AUTHOR;
+		else if (!strcmp("-w", arg))
+			xdl_opts |= XDF_IGNORE_WHITESPACE;
 		else if (!strcmp("-S", arg) && ++i < argc)
 			revs_file = argv[i];
 		else if (!prefixcmp(arg, "-M")) {
@@ -2219,9 +2231,6 @@ int cmd_blame(int argc, const char **argv, const char *prefix)
 			argv[unk++] = arg;
 	}
 
-	if (!incremental)
-		setup_pager();
-
 	if (!blame_move_score)
 		blame_move_score = BLAME_DEFAULT_MOVE_SCORE;
 	if (!blame_copy_score)
@@ -2377,6 +2386,10 @@ int cmd_blame(int argc, const char **argv, const char *prefix)
 
 		sb.final_buf = read_sha1_file(o->blob_sha1, &type,
 					      &sb.final_buf_size);
+		if (!sb.final_buf)
+			die("Cannot read blob %s for path %s",
+			    sha1_to_hex(o->blob_sha1),
+			    path);
 	}
 	num_read_blob++;
 	lno = prepare_lines(&sb);
@@ -2411,6 +2424,9 @@ int cmd_blame(int argc, const char **argv, const char *prefix)
 
 	read_mailmap(&mailmap, ".mailmap", NULL);
 
+	if (!incremental)
+		setup_pager();
+
 	assign_blame(&sb, &revs, opt);
 
 	if (incremental)