From ac64a722072bb348476a8a029de9a82073e07fba Mon Sep 17 00:00:00 2001 From: Johannes Schindelin Date: Wed, 26 Jul 2006 19:47:54 +0200 Subject: [PATCH] builtin git-mv: support moving directories This fixes the builtin mv for the test which Josef provided, and also fixes moving directories into existing directories, as noted by Jon Smirl. In case the destination exists, fail early (this cannot be overridden by -f). Signed-off-by: Johannes Schindelin Signed-off-by: Junio C Hamano --- builtin-mv.c | 87 ++++++++++++++++++++++++++++++++++++++++++++++++--- t/t7001-mv.sh | 4 +++ 2 files changed, 86 insertions(+), 5 deletions(-) diff --git a/builtin-mv.c b/builtin-mv.c index 593ff9e434..42c2e39b21 100644 --- a/builtin-mv.c +++ b/builtin-mv.c @@ -42,6 +42,18 @@ static void show_list(const char *label, struct path_list *list) } } +static const char *add_slash(const char *path) +{ + int len = strlen(path); + if (path[len - 1] != '/') { + char *with_slash = xmalloc(len + 2); + memcpy(with_slash, path, len); + strcat(with_slash + len, "/"); + return with_slash; + } + return path; +} + static struct lock_file lock_file; int cmd_mv(int argc, const char **argv, char **envp) @@ -50,6 +62,7 @@ int cmd_mv(int argc, const char **argv, char **envp) int verbose = 0, show_only = 0, force = 0, ignore_errors = 0; const char *prefix = setup_git_directory(); const char **source, **destination, **dest_path; + enum update_mode { BOTH = 0, WORKING_DIRECTORY, INDEX } *modes; struct stat st; struct path_list overwritten = {NULL, 0, 0, 0}; struct path_list src_for_dst = {NULL, 0, 0, 0}; @@ -94,11 +107,14 @@ int cmd_mv(int argc, const char **argv, char **envp) usage(builtin_mv_usage); source = copy_pathspec(prefix, argv + i, count, 0); + modes = xcalloc(count, sizeof(enum update_mode)); dest_path = copy_pathspec(prefix, argv + argc - 1, 1, 0); - if (!lstat(dest_path[0], &st) && S_ISDIR(st.st_mode)) + if (!lstat(dest_path[0], &st) && + S_ISDIR(st.st_mode)) { + dest_path[0] = add_slash(dest_path[0]); destination = copy_pathspec(dest_path[0], argv + i, count, 1); - else { + } else { if (count != 1) usage(builtin_mv_usage); destination = dest_path; @@ -114,7 +130,64 @@ int cmd_mv(int argc, const char **argv, char **envp) if (lstat(source[i], &st) < 0) bad = "bad source"; - else if (lstat(destination[i], &st) == 0) { + + if (S_ISDIR(st.st_mode)) { + const char *dir = source[i], *dest_dir = destination[i]; + int first, last, len = strlen(dir); + + if (lstat(dest_dir, &st) == 0) { + bad = "cannot move directory over file"; + goto next; + } + + modes[i] = WORKING_DIRECTORY; + + first = cache_name_pos(source[i], len); + if (first >= 0) + die ("Huh? %s/ is in index?", dir); + + first = -1 - first; + for (last = first; last < active_nr; last++) { + const char *path = active_cache[last]->name; + if (strncmp(path, dir, len) || path[len] != '/') + break; + } + + if (last - first < 1) + bad = "source directory is empty"; + else if (!bad) { + int j, dst_len = strlen(dest_dir); + + if (last - first > 0) { + source = realloc(source, + (count + last - first) + * sizeof(char *)); + destination = realloc(destination, + (count + last - first) + * sizeof(char *)); + modes = realloc(modes, + (count + last - first) + * sizeof(enum update_mode)); + } + + dest_dir = add_slash(dest_dir); + + for (j = 0; j < last - first; j++) { + const char *path = + active_cache[first + j]->name; + source[count + j] = path; + destination[count + j] = + prefix_path(dest_dir, dst_len, + path + len); + modes[count + j] = INDEX; + } + count += last - first; + } + + goto next; + } + + if (!bad && lstat(destination[i], &st) == 0) { bad = "destination exists"; if (force) { /* @@ -147,6 +220,7 @@ int cmd_mv(int argc, const char **argv, char **envp) path_list_insert(destination[i], &src_for_dst); } +next: if (bad) { if (ignore_errors) { if (--count > 0) { @@ -157,7 +231,7 @@ int cmd_mv(int argc, const char **argv, char **envp) (count - i) * sizeof(char *)); } } else - die ("Error: %s, source=%s, destination=%s", + die ("%s, source=%s, destination=%s", bad, source[i], destination[i]); } } @@ -166,12 +240,15 @@ int cmd_mv(int argc, const char **argv, char **envp) if (show_only || verbose) printf("Renaming %s to %s\n", source[i], destination[i]); - if (!show_only && + if (!show_only && modes[i] != INDEX && rename(source[i], destination[i]) < 0 && !ignore_errors) die ("renaming %s failed: %s", source[i], strerror(errno)); + if (modes[i] == WORKING_DIRECTORY) + continue; + if (cache_name_pos(source[i], strlen(source[i])) >= 0) { path_list_insert(source[i], &deleted); diff --git a/t/t7001-mv.sh b/t/t7001-mv.sh index 322eaadc73..900ca93cde 100755 --- a/t/t7001-mv.sh +++ b/t/t7001-mv.sh @@ -74,4 +74,8 @@ test_expect_success \ git-diff-tree -r -M --name-status HEAD^ HEAD | \ grep -E "^R100.+path2/README.+path1/path2/README"' +test_expect_failure \ + 'do not move directory over existing directory' \ + 'mkdir path0 && mkdir path0/path2 && git-mv path2 path0' + test_done