Avoid segfault with 'git branch' when the HEAD is detached

[git.git] / builtin-blame.c

diff --git a/builtin-blame.c b/builtin-blame.c
index a0d60145f26d32e45f4d04c22164cbe8060739ca..9b9f5442a277082c8ad04295107eb9ddd6c95b19 100644 (file)
--- a/builtin-blame.c
+++ b/builtin-blame.c
@@ -19,6 +19,7 @@
 #include "string-list.h"
 #include "mailmap.h"
 #include "parse-options.h"
+#include "utf8.h"
 
 static char blame_usage[] = "git blame [options] [rev-opts] [rev] [--] file";
 
@@ -1618,13 +1619,14 @@ static void emit_other(struct scoreboard *sb, struct blame_entry *ent, int opt)
                                printf(" %*d", max_orig_digits,
                                       ent->s_lno + 1 + cnt);
 
-                       if (!(opt & OUTPUT_NO_AUTHOR))
-                               printf(" (%-*.*s %10s",
-                                      longest_author, longest_author,
-                                      ci.author,
+                       if (!(opt & OUTPUT_NO_AUTHOR)) {
+                               int pad = longest_author - utf8_strwidth(ci.author);
+                               printf(" (%s%*s %10s",
+                                      ci.author, pad, "",
                                       format_time(ci.author_time,
                                                   ci.author_tz,
                                                   show_raw_time));
+                       }
                        printf(" %*d) ",
                               max_digits, ent->lno + 1 + cnt);
                }
@@ -1755,7 +1757,7 @@ static void find_alignment(struct scoreboard *sb, int *option)
                if (!(suspect->commit->object.flags & METAINFO_SHOWN)) {
                        suspect->commit->object.flags |= METAINFO_SHOWN;
                        get_commit_info(suspect->commit, &ci, 1);
-                       num = strlen(ci.author);
+                       num = utf8_strwidth(ci.author);
                        if (longest_author < num)
                                longest_author = num;
                }
@@ -1996,7 +1998,6 @@ static struct commit *fake_working_tree_commit(const char *path, const char *con
        if (!contents_from || strcmp("-", contents_from)) {
                struct stat st;
                const char *read_from;
-               unsigned long fin_size;
 
                if (contents_from) {
                        if (stat(contents_from, &st) < 0)
@@ -2008,7 +2009,6 @@ static struct commit *fake_working_tree_commit(const char *path, const char *con
                                die("Cannot lstat %s", path);
                        read_from = path;
                }
-               fin_size = xsize_t(st.st_size);
                mode = canon_mode(st.st_mode);
                switch (st.st_mode & S_IFMT) {
                case S_IFREG:
@@ -2016,9 +2016,8 @@ static struct commit *fake_working_tree_commit(const char *path, const char *con
                                die("cannot open or read %s", read_from);
                        break;
                case S_IFLNK:
-                       if (readlink(read_from, buf.buf, buf.alloc) != fin_size)
+                       if (strbuf_readlink(&buf, read_from, st.st_size) < 0)
                                die("cannot readlink %s", read_from);
-                       buf.len = fin_size;
                        break;
                default:
                        die("unsupported file type %s", read_from);