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-rw-r--r--builtin/add.c442
1 files changed, 442 insertions, 0 deletions
diff --git a/builtin/add.c b/builtin/add.c
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--- /dev/null
+++ b/builtin/add.c
@@ -0,0 +1,442 @@
+/*
+ * "git add" builtin command
+ *
+ * Copyright (C) 2006 Linus Torvalds
+ */
+#include "cache.h"
+#include "builtin.h"
+#include "dir.h"
+#include "exec_cmd.h"
+#include "cache-tree.h"
+#include "run-command.h"
+#include "parse-options.h"
+#include "diff.h"
+#include "diffcore.h"
+#include "revision.h"
+
+static const char * const builtin_add_usage[] = {
+ "git add [options] [--] <filepattern>...",
+ NULL
+};
+static int patch_interactive, add_interactive, edit_interactive;
+static int take_worktree_changes;
+
+struct update_callback_data
+{
+ int flags;
+ int add_errors;
+};
+
+static void update_callback(struct diff_queue_struct *q,
+ struct diff_options *opt, void *cbdata)
+{
+ int i;
+ struct update_callback_data *data = cbdata;
+
+ for (i = 0; i < q->nr; i++) {
+ struct diff_filepair *p = q->queue[i];
+ const char *path = p->one->path;
+ switch (p->status) {
+ default:
+ die("unexpected diff status %c", p->status);
+ case DIFF_STATUS_UNMERGED:
+ /*
+ * ADD_CACHE_IGNORE_REMOVAL is unset if "git
+ * add -u" is calling us, In such a case, a
+ * missing work tree file needs to be removed
+ * if there is an unmerged entry at stage #2,
+ * but such a diff record is followed by
+ * another with DIFF_STATUS_DELETED (and if
+ * there is no stage #2, we won't see DELETED
+ * nor MODIFIED). We can simply continue
+ * either way.
+ */
+ if (!(data->flags & ADD_CACHE_IGNORE_REMOVAL))
+ continue;
+ /*
+ * Otherwise, it is "git add path" is asking
+ * to explicitly add it; we fall through. A
+ * missing work tree file is an error and is
+ * caught by add_file_to_index() in such a
+ * case.
+ */
+ case DIFF_STATUS_MODIFIED:
+ case DIFF_STATUS_TYPE_CHANGED:
+ if (add_file_to_index(&the_index, path, data->flags)) {
+ if (!(data->flags & ADD_CACHE_IGNORE_ERRORS))
+ die("updating files failed");
+ data->add_errors++;
+ }
+ break;
+ case DIFF_STATUS_DELETED:
+ if (data->flags & ADD_CACHE_IGNORE_REMOVAL)
+ break;
+ if (!(data->flags & ADD_CACHE_PRETEND))
+ remove_file_from_index(&the_index, path);
+ if (data->flags & (ADD_CACHE_PRETEND|ADD_CACHE_VERBOSE))
+ printf("remove '%s'\n", path);
+ break;
+ }
+ }
+}
+
+int add_files_to_cache(const char *prefix, const char **pathspec, int flags)
+{
+ struct update_callback_data data;
+ struct rev_info rev;
+ init_revisions(&rev, prefix);
+ setup_revisions(0, NULL, &rev, NULL);
+ rev.prune_data = pathspec;
+ rev.diffopt.output_format = DIFF_FORMAT_CALLBACK;
+ rev.diffopt.format_callback = update_callback;
+ data.flags = flags;
+ data.add_errors = 0;
+ rev.diffopt.format_callback_data = &data;
+ run_diff_files(&rev, DIFF_RACY_IS_MODIFIED);
+ return !!data.add_errors;
+}
+
+static void fill_pathspec_matches(const char **pathspec, char *seen, int specs)
+{
+ int num_unmatched = 0, i;
+
+ /*
+ * Since we are walking the index as if we were walking the directory,
+ * we have to mark the matched pathspec as seen; otherwise we will
+ * mistakenly think that the user gave a pathspec that did not match
+ * anything.
+ */
+ for (i = 0; i < specs; i++)
+ if (!seen[i])
+ num_unmatched++;
+ if (!num_unmatched)
+ return;
+ for (i = 0; i < active_nr; i++) {
+ struct cache_entry *ce = active_cache[i];
+ match_pathspec(pathspec, ce->name, ce_namelen(ce), 0, seen);
+ }
+}
+
+static void prune_directory(struct dir_struct *dir, const char **pathspec, int prefix)
+{
+ char *seen;
+ int i, specs;
+ struct dir_entry **src, **dst;
+
+ for (specs = 0; pathspec[specs]; specs++)
+ /* nothing */;
+ seen = xcalloc(specs, 1);
+
+ src = dst = dir->entries;
+ i = dir->nr;
+ while (--i >= 0) {
+ struct dir_entry *entry = *src++;
+ if (match_pathspec(pathspec, entry->name, entry->len,
+ prefix, seen))
+ *dst++ = entry;
+ }
+ dir->nr = dst - dir->entries;
+ fill_pathspec_matches(pathspec, seen, specs);
+
+ for (i = 0; i < specs; i++) {
+ if (!seen[i] && pathspec[i][0] && !file_exists(pathspec[i]))
+ die("pathspec '%s' did not match any files",
+ pathspec[i]);
+ }
+ free(seen);
+}
+
+static void treat_gitlinks(const char **pathspec)
+{
+ int i;
+
+ if (!pathspec || !*pathspec)
+ return;
+
+ for (i = 0; i < active_nr; i++) {
+ struct cache_entry *ce = active_cache[i];
+ if (S_ISGITLINK(ce->ce_mode)) {
+ int len = ce_namelen(ce), j;
+ for (j = 0; pathspec[j]; j++) {
+ int len2 = strlen(pathspec[j]);
+ if (len2 <= len || pathspec[j][len] != '/' ||
+ memcmp(ce->name, pathspec[j], len))
+ continue;
+ if (len2 == len + 1)
+ /* strip trailing slash */
+ pathspec[j] = xstrndup(ce->name, len);
+ else
+ die ("Path '%s' is in submodule '%.*s'",
+ pathspec[j], len, ce->name);
+ }
+ }
+ }
+}
+
+static void refresh(int verbose, const char **pathspec)
+{
+ char *seen;
+ int i, specs;
+
+ for (specs = 0; pathspec[specs]; specs++)
+ /* nothing */;
+ seen = xcalloc(specs, 1);
+ refresh_index(&the_index, verbose ? REFRESH_IN_PORCELAIN : REFRESH_QUIET,
+ pathspec, seen, "Unstaged changes after refreshing the index:");
+ for (i = 0; i < specs; i++) {
+ if (!seen[i])
+ die("pathspec '%s' did not match any files", pathspec[i]);
+ }
+ free(seen);
+}
+
+static const char **validate_pathspec(int argc, const char **argv, const char *prefix)
+{
+ const char **pathspec = get_pathspec(prefix, argv);
+
+ if (pathspec) {
+ const char **p;
+ for (p = pathspec; *p; p++) {
+ if (has_symlink_leading_path(*p, strlen(*p))) {
+ int len = prefix ? strlen(prefix) : 0;
+ die("'%s' is beyond a symbolic link", *p + len);
+ }
+ }
+ }
+
+ return pathspec;
+}
+
+int run_add_interactive(const char *revision, const char *patch_mode,
+ const char **pathspec)
+{
+ int status, ac, pc = 0;
+ const char **args;
+
+ if (pathspec)
+ while (pathspec[pc])
+ pc++;
+
+ args = xcalloc(sizeof(const char *), (pc + 5));
+ ac = 0;
+ args[ac++] = "add--interactive";
+ if (patch_mode)
+ args[ac++] = patch_mode;
+ if (revision)
+ args[ac++] = revision;
+ args[ac++] = "--";
+ if (pc) {
+ memcpy(&(args[ac]), pathspec, sizeof(const char *) * pc);
+ ac += pc;
+ }
+ args[ac] = NULL;
+
+ status = run_command_v_opt(args, RUN_GIT_CMD);
+ free(args);
+ return status;
+}
+
+int interactive_add(int argc, const char **argv, const char *prefix)
+{
+ const char **pathspec = NULL;
+
+ if (argc) {
+ pathspec = validate_pathspec(argc, argv, prefix);
+ if (!pathspec)
+ return -1;
+ }
+
+ return run_add_interactive(NULL,
+ patch_interactive ? "--patch" : NULL,
+ pathspec);
+}
+
+static int edit_patch(int argc, const char **argv, const char *prefix)
+{
+ char *file = xstrdup(git_path("ADD_EDIT.patch"));
+ const char *apply_argv[] = { "apply", "--recount", "--cached",
+ file, NULL };
+ struct child_process child;
+ struct rev_info rev;
+ int out;
+ struct stat st;
+
+ git_config(git_diff_basic_config, NULL); /* no "diff" UI options */
+
+ if (read_cache() < 0)
+ die ("Could not read the index");
+
+ init_revisions(&rev, prefix);
+ rev.diffopt.context = 7;
+
+ argc = setup_revisions(argc, argv, &rev, NULL);
+ rev.diffopt.output_format = DIFF_FORMAT_PATCH;
+ out = open(file, O_CREAT | O_WRONLY, 0644);
+ if (out < 0)
+ die ("Could not open '%s' for writing.", file);
+ rev.diffopt.file = xfdopen(out, "w");
+ rev.diffopt.close_file = 1;
+ if (run_diff_files(&rev, 0))
+ die ("Could not write patch");
+
+ launch_editor(file, NULL, NULL);
+
+ if (stat(file, &st))
+ die_errno("Could not stat '%s'", file);
+ if (!st.st_size)
+ die("Empty patch. Aborted.");
+
+ memset(&child, 0, sizeof(child));
+ child.git_cmd = 1;
+ child.argv = apply_argv;
+ if (run_command(&child))
+ die ("Could not apply '%s'", file);
+
+ unlink(file);
+ return 0;
+}
+
+static struct lock_file lock_file;
+
+static const char ignore_error[] =
+"The following paths are ignored by one of your .gitignore files:\n";
+
+static int verbose = 0, show_only = 0, ignored_too = 0, refresh_only = 0;
+static int ignore_add_errors, addremove, intent_to_add;
+
+static struct option builtin_add_options[] = {
+ OPT__DRY_RUN(&show_only),
+ OPT__VERBOSE(&verbose),
+ OPT_GROUP(""),
+ OPT_BOOLEAN('i', "interactive", &add_interactive, "interactive picking"),
+ OPT_BOOLEAN('p', "patch", &patch_interactive, "interactive patching"),
+ OPT_BOOLEAN('e', "edit", &edit_interactive, "edit current diff and apply"),
+ OPT_BOOLEAN('f', "force", &ignored_too, "allow adding otherwise ignored files"),
+ OPT_BOOLEAN('u', "update", &take_worktree_changes, "update tracked files"),
+ OPT_BOOLEAN('N', "intent-to-add", &intent_to_add, "record only the fact that the path will be added later"),
+ OPT_BOOLEAN('A', "all", &addremove, "add all, noticing removal of tracked files"),
+ OPT_BOOLEAN( 0 , "refresh", &refresh_only, "don't add, only refresh the index"),
+ OPT_BOOLEAN( 0 , "ignore-errors", &ignore_add_errors, "just skip files which cannot be added because of errors"),
+ OPT_END(),
+};
+
+static int add_config(const char *var, const char *value, void *cb)
+{
+ if (!strcasecmp(var, "add.ignore-errors")) {
+ ignore_add_errors = git_config_bool(var, value);
+ return 0;
+ }
+ return git_default_config(var, value, cb);
+}
+
+static int add_files(struct dir_struct *dir, int flags)
+{
+ int i, exit_status = 0;
+
+ if (dir->ignored_nr) {
+ fprintf(stderr, ignore_error);
+ for (i = 0; i < dir->ignored_nr; i++)
+ fprintf(stderr, "%s\n", dir->ignored[i]->name);
+ fprintf(stderr, "Use -f if you really want to add them.\n");
+ die("no files added");
+ }
+
+ for (i = 0; i < dir->nr; i++)
+ if (add_file_to_cache(dir->entries[i]->name, flags)) {
+ if (!ignore_add_errors)
+ die("adding files failed");
+ exit_status = 1;
+ }
+ return exit_status;
+}
+
+int cmd_add(int argc, const char **argv, const char *prefix)
+{
+ int exit_status = 0;
+ int newfd;
+ const char **pathspec;
+ struct dir_struct dir;
+ int flags;
+ int add_new_files;
+ int require_pathspec;
+
+ git_config(add_config, NULL);
+
+ argc = parse_options(argc, argv, prefix, builtin_add_options,
+ builtin_add_usage, PARSE_OPT_KEEP_ARGV0);
+ if (patch_interactive)
+ add_interactive = 1;
+ if (add_interactive)
+ exit(interactive_add(argc - 1, argv + 1, prefix));
+
+ if (edit_interactive)
+ return(edit_patch(argc, argv, prefix));
+ argc--;
+ argv++;
+
+ if (addremove && take_worktree_changes)
+ die("-A and -u are mutually incompatible");
+ if ((addremove || take_worktree_changes) && !argc) {
+ static const char *here[2] = { ".", NULL };
+ argc = 1;
+ argv = here;
+ }
+
+ add_new_files = !take_worktree_changes && !refresh_only;
+ require_pathspec = !take_worktree_changes;
+
+ newfd = hold_locked_index(&lock_file, 1);
+
+ flags = ((verbose ? ADD_CACHE_VERBOSE : 0) |
+ (show_only ? ADD_CACHE_PRETEND : 0) |
+ (intent_to_add ? ADD_CACHE_INTENT : 0) |
+ (ignore_add_errors ? ADD_CACHE_IGNORE_ERRORS : 0) |
+ (!(addremove || take_worktree_changes)
+ ? ADD_CACHE_IGNORE_REMOVAL : 0));
+
+ if (require_pathspec && argc == 0) {
+ fprintf(stderr, "Nothing specified, nothing added.\n");
+ fprintf(stderr, "Maybe you wanted to say 'git add .'?\n");
+ return 0;
+ }
+ pathspec = validate_pathspec(argc, argv, prefix);
+
+ if (read_cache() < 0)
+ die("index file corrupt");
+ treat_gitlinks(pathspec);
+
+ if (add_new_files) {
+ int baselen;
+
+ /* Set up the default git porcelain excludes */
+ memset(&dir, 0, sizeof(dir));
+ if (!ignored_too) {
+ dir.flags |= DIR_COLLECT_IGNORED;
+ setup_standard_excludes(&dir);
+ }
+
+ /* This picks up the paths that are not tracked */
+ baselen = fill_directory(&dir, pathspec);
+ if (pathspec)
+ prune_directory(&dir, pathspec, baselen);
+ }
+
+ if (refresh_only) {
+ refresh(verbose, pathspec);
+ goto finish;
+ }
+
+ exit_status |= add_files_to_cache(prefix, pathspec, flags);
+
+ if (add_new_files)
+ exit_status |= add_files(&dir, flags);
+
+ finish:
+ 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 exit_status;
+}