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authorLinus Torvalds <torvalds@linux-foundation.org>2010-02-22 16:42:18 (GMT)
committerJunio C Hamano <gitster@pobox.com>2010-02-22 22:29:41 (GMT)
commit81b50f3ce40bfdd66e5d967bf82be001039a9a98 (patch)
tree7e86bb81e83c9fad73dcbdaa0ef33038137b4274 /builtin/rm.c
parent241b9254e1c8ff071d8054f8b6fbe1883b389d69 (diff)
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Move 'builtin-*' into a 'builtin/' subdirectory
This shrinks the top-level directory a bit, and makes it much more pleasant to use auto-completion on the thing. Instead of [torvalds@nehalem git]$ em buil<tab> Display all 180 possibilities? (y or n) [torvalds@nehalem git]$ em builtin-sh builtin-shortlog.c builtin-show-branch.c builtin-show-ref.c builtin-shortlog.o builtin-show-branch.o builtin-show-ref.o [torvalds@nehalem git]$ em builtin-shor<tab> builtin-shortlog.c builtin-shortlog.o [torvalds@nehalem git]$ em builtin-shortlog.c you get [torvalds@nehalem git]$ em buil<tab> [type] builtin/ builtin.h [torvalds@nehalem git]$ em builtin [auto-completes to] [torvalds@nehalem git]$ em builtin/sh<tab> [type] shortlog.c shortlog.o show-branch.c show-branch.o show-ref.c show-ref.o [torvalds@nehalem git]$ em builtin/sho [auto-completes to] [torvalds@nehalem git]$ em builtin/shor<tab> [type] shortlog.c shortlog.o [torvalds@nehalem git]$ em builtin/shortlog.c which doesn't seem all that different, but not having that annoying break in "Display all 180 possibilities?" is quite a relief. NOTE! If you do this in a clean tree (no object files etc), or using an editor that has auto-completion rules that ignores '*.o' files, you won't see that annoying 'Display all 180 possibilities?' message - it will just show the choices instead. I think bash has some cut-off around 100 choices or something. So the reason I see this is that I'm using an odd editory, and thus don't have the rules to cut down on auto-completion. But you can simulate that by using 'ls' instead, or something similar. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'builtin/rm.c')
-rw-r--r--builtin/rm.c272
1 files changed, 272 insertions, 0 deletions
diff --git a/builtin/rm.c b/builtin/rm.c
new file mode 100644
index 0000000..f3772c8
--- /dev/null
+++ b/builtin/rm.c
@@ -0,0 +1,272 @@
+/*
+ * "git rm" builtin command
+ *
+ * Copyright (C) Linus Torvalds 2006
+ */
+#include "cache.h"
+#include "builtin.h"
+#include "dir.h"
+#include "cache-tree.h"
+#include "tree-walk.h"
+#include "parse-options.h"
+
+static const char * const builtin_rm_usage[] = {
+ "git rm [options] [--] <file>...",
+ NULL
+};
+
+static struct {
+ int nr, alloc;
+ const char **name;
+} list;
+
+static void add_list(const char *name)
+{
+ if (list.nr >= list.alloc) {
+ list.alloc = alloc_nr(list.alloc);
+ list.name = xrealloc(list.name, list.alloc * sizeof(const char *));
+ }
+ list.name[list.nr++] = name;
+}
+
+static int check_local_mod(unsigned char *head, int index_only)
+{
+ /*
+ * Items in list are already sorted in the cache order,
+ * so we could do this a lot more efficiently by using
+ * tree_desc based traversal if we wanted to, but I am
+ * lazy, and who cares if removal of files is a tad
+ * slower than the theoretical maximum speed?
+ */
+ int i, no_head;
+ int errs = 0;
+
+ no_head = is_null_sha1(head);
+ for (i = 0; i < list.nr; i++) {
+ struct stat st;
+ int pos;
+ struct cache_entry *ce;
+ const char *name = list.name[i];
+ unsigned char sha1[20];
+ unsigned mode;
+ int local_changes = 0;
+ int staged_changes = 0;
+
+ pos = cache_name_pos(name, strlen(name));
+ if (pos < 0)
+ continue; /* removing unmerged entry */
+ ce = active_cache[pos];
+
+ if (lstat(ce->name, &st) < 0) {
+ if (errno != ENOENT)
+ warning("'%s': %s", ce->name, strerror(errno));
+ /* It already vanished from the working tree */
+ continue;
+ }
+ else if (S_ISDIR(st.st_mode)) {
+ /* if a file was removed and it is now a
+ * directory, that is the same as ENOENT as
+ * far as git is concerned; we do not track
+ * directories.
+ */
+ continue;
+ }
+
+ /*
+ * "rm" of a path that has changes need to be treated
+ * carefully not to allow losing local changes
+ * accidentally. A local change could be (1) file in
+ * work tree is different since the index; and/or (2)
+ * the user staged a content that is different from
+ * the current commit in the index.
+ *
+ * In such a case, you would need to --force the
+ * removal. However, "rm --cached" (remove only from
+ * the index) is safe if the index matches the file in
+ * the work tree or the HEAD commit, as it means that
+ * the content being removed is available elsewhere.
+ */
+
+ /*
+ * Is the index different from the file in the work tree?
+ */
+ if (ce_match_stat(ce, &st, 0))
+ local_changes = 1;
+
+ /*
+ * Is the index different from the HEAD commit? By
+ * definition, before the very initial commit,
+ * anything staged in the index is treated by the same
+ * way as changed from the HEAD.
+ */
+ if (no_head
+ || get_tree_entry(head, name, sha1, &mode)
+ || ce->ce_mode != create_ce_mode(mode)
+ || hashcmp(ce->sha1, sha1))
+ staged_changes = 1;
+
+ /*
+ * If the index does not match the file in the work
+ * tree and if it does not match the HEAD commit
+ * either, (1) "git rm" without --cached definitely
+ * will lose information; (2) "git rm --cached" will
+ * lose information unless it is about removing an
+ * "intent to add" entry.
+ */
+ if (local_changes && staged_changes) {
+ if (!index_only || !(ce->ce_flags & CE_INTENT_TO_ADD))
+ errs = error("'%s' has staged content different "
+ "from both the file and the HEAD\n"
+ "(use -f to force removal)", name);
+ }
+ else if (!index_only) {
+ if (staged_changes)
+ errs = error("'%s' has changes staged in the index\n"
+ "(use --cached to keep the file, "
+ "or -f to force removal)", name);
+ if (local_changes)
+ errs = error("'%s' has local modifications\n"
+ "(use --cached to keep the file, "
+ "or -f to force removal)", name);
+ }
+ }
+ return errs;
+}
+
+static struct lock_file lock_file;
+
+static int show_only = 0, force = 0, index_only = 0, recursive = 0, quiet = 0;
+static int ignore_unmatch = 0;
+
+static struct option builtin_rm_options[] = {
+ OPT__DRY_RUN(&show_only),
+ OPT__QUIET(&quiet),
+ OPT_BOOLEAN( 0 , "cached", &index_only, "only remove from the index"),
+ OPT_BOOLEAN('f', "force", &force, "override the up-to-date check"),
+ OPT_BOOLEAN('r', NULL, &recursive, "allow recursive removal"),
+ OPT_BOOLEAN( 0 , "ignore-unmatch", &ignore_unmatch,
+ "exit with a zero status even if nothing matched"),
+ OPT_END(),
+};
+
+int cmd_rm(int argc, const char **argv, const char *prefix)
+{
+ int i, newfd;
+ const char **pathspec;
+ char *seen;
+
+ git_config(git_default_config, NULL);
+
+ argc = parse_options(argc, argv, prefix, builtin_rm_options,
+ builtin_rm_usage, 0);
+ if (!argc)
+ usage_with_options(builtin_rm_usage, builtin_rm_options);
+
+ if (!index_only)
+ setup_work_tree();
+
+ newfd = hold_locked_index(&lock_file, 1);
+
+ if (read_cache() < 0)
+ die("index file corrupt");
+
+ pathspec = get_pathspec(prefix, argv);
+ refresh_index(&the_index, REFRESH_QUIET, pathspec, NULL, NULL);
+
+ seen = NULL;
+ for (i = 0; pathspec[i] ; i++)
+ /* nothing */;
+ seen = xcalloc(i, 1);
+
+ for (i = 0; i < active_nr; i++) {
+ struct cache_entry *ce = active_cache[i];
+ if (!match_pathspec(pathspec, ce->name, ce_namelen(ce), 0, seen))
+ continue;
+ add_list(ce->name);
+ }
+
+ if (pathspec) {
+ const char *match;
+ int seen_any = 0;
+ for (i = 0; (match = pathspec[i]) != NULL ; i++) {
+ if (!seen[i]) {
+ if (!ignore_unmatch) {
+ die("pathspec '%s' did not match any files",
+ match);
+ }
+ }
+ else {
+ seen_any = 1;
+ }
+ if (!recursive && seen[i] == MATCHED_RECURSIVELY)
+ die("not removing '%s' recursively without -r",
+ *match ? match : ".");
+ }
+
+ if (! seen_any)
+ exit(0);
+ }
+
+ /*
+ * If not forced, the file, the index and the HEAD (if exists)
+ * must match; but the file can already been removed, since
+ * this sequence is a natural "novice" way:
+ *
+ * rm F; git rm F
+ *
+ * Further, if HEAD commit exists, "diff-index --cached" must
+ * report no changes unless forced.
+ */
+ if (!force) {
+ unsigned char sha1[20];
+ if (get_sha1("HEAD", sha1))
+ hashclr(sha1);
+ if (check_local_mod(sha1, index_only))
+ exit(1);
+ }
+
+ /*
+ * First remove the names from the index: we won't commit
+ * the index unless all of them succeed.
+ */
+ for (i = 0; i < list.nr; i++) {
+ const char *path = list.name[i];
+ if (!quiet)
+ printf("rm '%s'\n", path);
+
+ if (remove_file_from_cache(path))
+ die("git rm: unable to remove %s", path);
+ }
+
+ if (show_only)
+ return 0;
+
+ /*
+ * Then, unless we used "--cached", remove the filenames from
+ * the workspace. If we fail to remove the first one, we
+ * abort the "git rm" (but once we've successfully removed
+ * any file at all, we'll go ahead and commit to it all:
+ * by then we've already committed ourselves and can't fail
+ * in the middle)
+ */
+ if (!index_only) {
+ int removed = 0;
+ for (i = 0; i < list.nr; i++) {
+ const char *path = list.name[i];
+ if (!remove_path(path)) {
+ removed = 1;
+ continue;
+ }
+ if (!removed)
+ die_errno("git rm: '%s'", path);
+ }
+ }
+
+ if (active_cache_changed) {
+ if (write_cache(newfd, active_cache, active_nr) ||
+ commit_locked_index(&lock_file))
+ die("Unable to write new index file");
+ }
+
+ return 0;
+}