From 5c97558c9a813a0a775c438a79cfc438def00c22 Mon Sep 17 00:00:00 2001 From: Junio C Hamano Date: Thu, 19 May 2005 03:32:35 -0700 Subject: [PATCH] Detect renames in diff family. This rips out the rename detection engine from diff-helper and moves it to the diff core, and updates the internal calling convention used by diff-tree family into the diff core. In order to give the same option name to diff-tree family as well as to diff-helper, I've changed the earlier diff-helper '-r' option to '-M' (stands for Move; sorry but the natural abbreviation 'r' for 'rename' is already taken for 'recursive'). Although I did a fair amount of test with the git-diff-tree with existing rename commits in the core GIT repository, this should still be considered beta (preview) release. This patch depends on the diff-delta infrastructure just committed. This implements almost everything I wanted to see in this series of patch, except a few minor cleanups in the calling convention into diff core, but that will be a separate cleanup patch. Signed-off-by: Junio C Hamano Signed-off-by: Linus Torvalds --- diff-cache.c | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-) (limited to 'diff-cache.c') diff --git a/diff-cache.c b/diff-cache.c index 4cfbcdb9ed..2bdea9cc3a 100644 --- a/diff-cache.c +++ b/diff-cache.c @@ -5,6 +5,7 @@ static int cached_only = 0; static int generate_patch = 0; static int match_nonexisting = 0; static int line_termination = '\n'; +static int detect_rename = 0; /* A file entry went away or appeared */ static void show_file(const char *prefix, struct cache_entry *ce, unsigned char *sha1, unsigned int mode) @@ -165,13 +166,14 @@ static void mark_merge_entries(void) } static char *diff_cache_usage = -"git-diff-cache [-p] [-r] [-z] [-m] [--cached] "; +"git-diff-cache [-p] [-r] [-z] [-m] [-M] [--cached] "; int main(int argc, char **argv) { unsigned char tree_sha1[20]; void *tree; unsigned long size; + int ret; read_cache(); while (argc > 2) { @@ -186,6 +188,10 @@ int main(int argc, char **argv) generate_patch = 1; continue; } + if (!strcmp(arg, "-M")) { + generate_patch = detect_rename = 1; + continue; + } if (!strcmp(arg, "-z")) { line_termination = '\0'; continue; @@ -204,6 +210,9 @@ int main(int argc, char **argv) if (argc != 2 || get_sha1(argv[1], tree_sha1)) usage(diff_cache_usage); + if (generate_patch) + diff_setup(detect_rename, 0, 0, 0, 0); + mark_merge_entries(); tree = read_object_with_reference(tree_sha1, "tree", &size, 0); @@ -212,5 +221,8 @@ int main(int argc, char **argv) if (read_tree(tree, size, 1)) die("unable to read tree object %s", argv[1]); - return diff_cache(active_cache, active_nr); + ret = diff_cache(active_cache, active_nr); + if (generate_patch) + diff_flush(); + return ret; } -- cgit v1.2.1