From b11645be0139f907488b17ca4267e593ee58dd30 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Wed, 18 May 2005 13:06:47 -0700 Subject: [PATCH] diff-tree: clean up diff_tree_stdin() function Split it into the "one commit" vs "two trees" case, since we'll want to use the "one commit" case for other things too. --- diff-tree.c | 48 +++++++++++++++++++++++++++--------------------- 1 file changed, 27 insertions(+), 21 deletions(-) diff --git a/diff-tree.c b/diff-tree.c index 51e3274f..24b24dcf 100644 --- a/diff-tree.c +++ b/diff-tree.c @@ -342,27 +342,11 @@ static char *generate_header(const char *commit, const char *parent, const char return this_header; } -static int diff_tree_stdin(char *line) +static int diff_tree_commit(const unsigned char *commit, const char *name) { - int len = strlen(line); - unsigned char commit[20], parent[20]; unsigned long size, offset; - static char this_header[1000]; - char *buf; + char *buf = read_object_with_reference(commit, "commit", &size, NULL); - if (!len || line[len-1] != '\n') - return -1; - line[len-1] = 0; - if (get_sha1_hex(line, commit)) - return -1; - if (isspace(line[40]) && !get_sha1_hex(line+41, parent)) { - line[40] = 0; - line[81] = 0; - sprintf(this_header, "%s (from %s)\n", line, line+41); - header = this_header; - return diff_tree_sha1(parent, commit, ""); - } - buf = read_object_with_reference(commit, "commit", &size, NULL); if (!buf) return -1; @@ -372,18 +356,40 @@ static int diff_tree_stdin(char *line) return 0; } - line[40] = 0; offset = 46; while (offset + 48 < size && !memcmp(buf + offset, "parent ", 7)) { + unsigned char parent[20]; if (get_sha1_hex(buf + offset + 7, parent)) return -1; - header = generate_header(line, sha1_to_hex(parent), buf, size); + header = generate_header(name, sha1_to_hex(parent), buf, size); diff_tree_sha1(parent, commit, ""); if (!header && verbose_header) header_prefix = "\ndiff-tree "; offset += 48; } - return -1; + return 0; +} + +static int diff_tree_stdin(char *line) +{ + int len = strlen(line); + unsigned char commit[20], parent[20]; + static char this_header[1000]; + + if (!len || line[len-1] != '\n') + return -1; + line[len-1] = 0; + if (get_sha1_hex(line, commit)) + return -1; + if (isspace(line[40]) && !get_sha1_hex(line+41, parent)) { + line[40] = 0; + line[81] = 0; + sprintf(this_header, "%s (from %s)\n", line, line+41); + header = this_header; + return diff_tree_sha1(parent, commit, ""); + } + line[40] = 0; + return diff_tree_commit(commit, line); } static char *diff_tree_usage = -- 2.11.0