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40aaae88ad
Most of the callers except the one in refs.c use the function to update the index file. Among the index writers, everybody except write-tree dies if they cannot open it for writing. This gives the function an extra argument, to tell it to die when it cannot create a new file as the lockfile. The only caller that does not have to die is write-tree, because updating the index for the cache-tree part is optional and not being able to do so does not affect the correctness. I think we do not have to be so careful and make the failure into die() the same way as other callers, but that would be a different patch. Signed-off-by: Junio C Hamano <junkio@cox.net>
151 lines
3.1 KiB
C
151 lines
3.1 KiB
C
/*
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* "git rm" builtin command
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*
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* Copyright (C) Linus Torvalds 2006
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*/
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#include "cache.h"
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#include "builtin.h"
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#include "dir.h"
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#include "cache-tree.h"
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static const char builtin_rm_usage[] =
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"git-rm [-n] [-v] [-f] <filepattern>...";
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static struct {
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int nr, alloc;
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const char **name;
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} list;
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static void add_list(const char *name)
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{
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if (list.nr >= list.alloc) {
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list.alloc = alloc_nr(list.alloc);
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list.name = xrealloc(list.name, list.alloc * sizeof(const char *));
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}
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list.name[list.nr++] = name;
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}
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static int remove_file(const char *name)
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{
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int ret;
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char *slash;
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ret = unlink(name);
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if (!ret && (slash = strrchr(name, '/'))) {
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char *n = strdup(name);
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do {
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n[slash - name] = 0;
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name = n;
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} while (!rmdir(name) && (slash = strrchr(name, '/')));
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}
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return ret;
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}
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static struct lock_file lock_file;
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int cmd_rm(int argc, const char **argv, const char *prefix)
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{
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int i, newfd;
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int verbose = 0, show_only = 0, force = 0;
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const char **pathspec;
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char *seen;
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git_config(git_default_config);
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newfd = hold_lock_file_for_update(&lock_file, get_index_file(), 1);
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if (read_cache() < 0)
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die("index file corrupt");
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for (i = 1 ; i < argc ; i++) {
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const char *arg = argv[i];
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if (*arg != '-')
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break;
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if (!strcmp(arg, "--")) {
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i++;
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break;
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}
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if (!strcmp(arg, "-n")) {
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show_only = 1;
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continue;
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}
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if (!strcmp(arg, "-v")) {
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verbose = 1;
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continue;
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}
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if (!strcmp(arg, "-f")) {
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force = 1;
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continue;
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}
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usage(builtin_rm_usage);
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}
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if (argc <= i)
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usage(builtin_rm_usage);
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pathspec = get_pathspec(prefix, argv + i);
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seen = NULL;
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for (i = 0; pathspec[i] ; i++)
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/* nothing */;
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seen = xcalloc(i, 1);
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for (i = 0; i < active_nr; i++) {
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struct cache_entry *ce = active_cache[i];
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if (!match_pathspec(pathspec, ce->name, ce_namelen(ce), 0, seen))
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continue;
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add_list(ce->name);
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}
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if (pathspec) {
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const char *match;
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for (i = 0; (match = pathspec[i]) != NULL ; i++) {
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if (*match && !seen[i])
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die("pathspec '%s' did not match any files", match);
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}
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}
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/*
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* First remove the names from the index: we won't commit
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* the index unless all of them succeed
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*/
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for (i = 0; i < list.nr; i++) {
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const char *path = list.name[i];
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printf("rm '%s'\n", path);
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if (remove_file_from_cache(path))
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die("git-rm: unable to remove %s", path);
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cache_tree_invalidate_path(active_cache_tree, path);
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}
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if (show_only)
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return 0;
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/*
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* Then, if we used "-f", remove the filenames from the
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* workspace. If we fail to remove the first one, we
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* abort the "git rm" (but once we've successfully removed
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* any file at all, we'll go ahead and commit to it all:
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* by then we've already committed ourselves and can't fail
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* in the middle)
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*/
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if (force) {
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int removed = 0;
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for (i = 0; i < list.nr; i++) {
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const char *path = list.name[i];
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if (!remove_file(path)) {
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removed = 1;
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continue;
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}
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if (!removed)
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die("git-rm: %s: %s", path, strerror(errno));
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}
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}
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if (active_cache_changed) {
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if (write_cache(newfd, active_cache, active_nr) ||
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close(newfd) || commit_lock_file(&lock_file))
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die("Unable to write new index file");
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}
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return 0;
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}
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