Code

Merge branch 'np/maint-safer-pack'
[git.git] / builtin-add.c
index 4fc9d6f7ccdd7b989d75ae6e24df997c4deb3505..7c874e31154a4c3f96b3403db1bdcb0b36fdec3e 100644 (file)
@@ -8,15 +8,36 @@
 #include "dir.h"
 #include "exec_cmd.h"
 #include "cache-tree.h"
-#include "diff.h"
-#include "diffcore.h"
-#include "commit.h"
-#include "revision.h"
+#include "run-command.h"
+#include "parse-options.h"
+
+static const char * const builtin_add_usage[] = {
+       "git add [options] [--] <filepattern>...",
+       NULL
+};
+static int patch_interactive = 0, add_interactive = 0;
+static int take_worktree_changes;
 
-static const char builtin_add_usage[] =
-"git-add [-n] [-v] [-f] [--interactive | -i] [-u] [--refresh] [--] <filepattern>...";
+static void fill_pathspec_matches(const char **pathspec, char *seen, int specs)
+{
+       int num_unmatched = 0, i;
 
-static int take_worktree_changes;
+       /*
+        * Since we are walking the index as if we are warlking 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)
 {
@@ -37,6 +58,7 @@ static void prune_directory(struct dir_struct *dir, const char **pathspec, int p
                        *dst++ = entry;
        }
        dir->nr = dst - dir->entries;
+       fill_pathspec_matches(pathspec, seen, specs);
 
        for (i = 0; i < specs; i++) {
                if (!seen[i] && !file_exists(pathspec[i]))
@@ -66,12 +88,8 @@ static void fill_directory(struct dir_struct *dir, const char **pathspec,
        baselen = common_prefix(pathspec);
        path = ".";
        base = "";
-       if (baselen) {
-               char *common = xmalloc(baselen + 1);
-               memcpy(common, *pathspec, baselen);
-               common[baselen] = 0;
-               path = base = common;
-       }
+       if (baselen)
+               path = base = xmemdupz(*pathspec, baselen);
 
        /* Read the directory and prune it */
        read_directory(dir, path, base, baselen, pathspec);
@@ -79,47 +97,6 @@ static void fill_directory(struct dir_struct *dir, const char **pathspec,
                prune_directory(dir, pathspec, baselen);
 }
 
-static void update_callback(struct diff_queue_struct *q,
-                           struct diff_options *opt, void *cbdata)
-{
-       int i, verbose;
-
-       verbose = *((int *)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:
-               case DIFF_STATUS_MODIFIED:
-               case DIFF_STATUS_TYPE_CHANGED:
-                       add_file_to_cache(path, verbose);
-                       break;
-               case DIFF_STATUS_DELETED:
-                       remove_file_from_cache(path);
-                       cache_tree_invalidate_path(active_cache_tree, path);
-                       if (verbose)
-                               printf("remove '%s'\n", path);
-                       break;
-               }
-       }
-}
-
-static void update(int verbose, const char *prefix, const char **files)
-{
-       struct rev_info rev;
-       init_revisions(&rev, prefix);
-       setup_revisions(0, NULL, &rev, NULL);
-       rev.prune_data = get_pathspec(prefix, files);
-       rev.diffopt.output_format = DIFF_FORMAT_CALLBACK;
-       rev.diffopt.format_callback = update_callback;
-       rev.diffopt.format_callback_data = &verbose;
-       if (read_cache() < 0)
-               die("index file corrupt");
-       run_diff_files(&rev, DIFF_RACY_IS_MODIFIED);
-}
-
 static void refresh(int verbose, const char **pathspec)
 {
        char *seen;
@@ -128,9 +105,8 @@ static void refresh(int verbose, const char **pathspec)
        for (specs = 0; pathspec[specs];  specs++)
                /* nothing */;
        seen = xcalloc(specs, 1);
-       if (read_cache() < 0)
-               die("index file corrupt");
-       refresh_index(&the_index, verbose ? 0 : REFRESH_QUIET, pathspec, seen);
+       refresh_index(&the_index, verbose ? REFRESH_SAY_CHANGED : REFRESH_QUIET,
+                     pathspec, seen);
        for (i = 0; i < specs; i++) {
                if (!seen[i])
                        die("pathspec '%s' did not match any files", pathspec[i]);
@@ -138,120 +114,172 @@ static void refresh(int verbose, const char **pathspec)
         free(seen);
 }
 
-static struct lock_file lock_file;
+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(strlen(*p), *p)) {
+                               int len = prefix ? strlen(prefix) : 0;
+                               die("'%s' is beyond a symbolic link", *p + len);
+                       }
+               }
+       }
 
-static const char ignore_error[] =
-"The following paths are ignored by one of your .gitignore files:\n";
+       return pathspec;
+}
 
-int cmd_add(int argc, const char **argv, const char *prefix)
+int interactive_add(int argc, const char **argv, const char *prefix)
 {
-       int i, newfd;
-       int verbose = 0, show_only = 0, ignored_too = 0, refresh_only = 0;
-       const char **pathspec;
-       struct dir_struct dir;
-       int add_interactive = 0;
-
-       for (i = 1; i < argc; i++) {
-               if (!strcmp("--interactive", argv[i]) ||
-                   !strcmp("-i", argv[i]))
-                       add_interactive++;
+       int status, ac;
+       const char **args;
+       const char **pathspec = NULL;
+
+       if (argc) {
+               pathspec = validate_pathspec(argc, argv, prefix);
+               if (!pathspec)
+                       return -1;
        }
-       if (add_interactive) {
-               const char *args[] = { "add--interactive", NULL };
 
-               if (add_interactive != 1 || argc != 2)
-                       die("add --interactive does not take any parameters");
-               execv_git_cmd(args);
-               exit(1);
+       args = xcalloc(sizeof(const char *), (argc + 4));
+       ac = 0;
+       args[ac++] = "add--interactive";
+       if (patch_interactive)
+               args[ac++] = "--patch";
+       args[ac++] = "--";
+       if (argc) {
+               memcpy(&(args[ac]), pathspec, sizeof(const char *) * argc);
+               ac += argc;
        }
+       args[ac] = NULL;
 
-       git_config(git_default_config);
+       status = run_command_v_opt(args, RUN_GIT_CMD);
+       free(args);
+       return status;
+}
 
-       newfd = hold_locked_index(&lock_file, 1);
+static struct lock_file lock_file;
 
-       for (i = 1; i < argc; i++) {
-               const char *arg = argv[i];
+static const char ignore_error[] =
+"The following paths are ignored by one of your .gitignore files:\n";
 
-               if (arg[0] != '-')
-                       break;
-               if (!strcmp(arg, "--")) {
-                       i++;
-                       break;
-               }
-               if (!strcmp(arg, "-n")) {
-                       show_only = 1;
-                       continue;
-               }
-               if (!strcmp(arg, "-f")) {
-                       ignored_too = 1;
-                       continue;
-               }
-               if (!strcmp(arg, "-v")) {
-                       verbose = 1;
-                       continue;
-               }
-               if (!strcmp(arg, "-u")) {
-                       take_worktree_changes = 1;
-                       continue;
-               }
-               if (!strcmp(arg, "--refresh")) {
-                       refresh_only = 1;
-                       continue;
-               }
-               usage(builtin_add_usage);
+static int verbose = 0, show_only = 0, ignored_too = 0, refresh_only = 0;
+static int ignore_add_errors, addremove;
+
+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('f', "force", &ignored_too, "allow adding otherwise ignored files"),
+       OPT_BOOLEAN('u', "update", &take_worktree_changes, "update tracked files"),
+       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);
+}
 
-       if (take_worktree_changes) {
-               update(verbose, prefix, argv + i);
-               goto finish;
-       }
+static int add_files(struct dir_struct *dir, int flags)
+{
+       int i, exit_status = 0;
 
-       if (argc <= i) {
-               fprintf(stderr, "Nothing specified, nothing added.\n");
-               fprintf(stderr, "Maybe you wanted to say 'git add .'?\n");
-               return 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");
        }
-       pathspec = get_pathspec(prefix, argv + i);
 
-       if (refresh_only) {
-               refresh(verbose, pathspec);
-               goto finish;
+       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;
+
+       argc = parse_options(argc, argv, builtin_add_options,
+                         builtin_add_usage, 0);
+       if (patch_interactive)
+               add_interactive = 1;
+       if (add_interactive)
+               exit(interactive_add(argc, argv, prefix));
+
+       git_config(add_config, NULL);
+
+       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;
        }
 
-       fill_directory(&dir, pathspec, ignored_too);
+       add_new_files = !take_worktree_changes && !refresh_only;
+       require_pathspec = !take_worktree_changes;
 
-       if (show_only) {
-               const char *sep = "", *eof = "";
-               for (i = 0; i < dir.nr; i++) {
-                       printf("%s%s", sep, dir.entries[i]->name);
-                       sep = " ";
-                       eof = "\n";
-               }
-               fputs(eof, stdout);
+       newfd = hold_locked_index(&lock_file, 1);
+
+       flags = ((verbose ? ADD_CACHE_VERBOSE : 0) |
+                (show_only ? ADD_CACHE_PRETEND : 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");
 
-       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");
+       if (add_new_files)
+               /* This picks up the paths that are not tracked */
+               fill_directory(&dir, pathspec, ignored_too);
+
+       if (refresh_only) {
+               refresh(verbose, pathspec);
+               goto finish;
        }
 
-       for (i = 0; i < dir.nr; i++)
-               add_file_to_cache(dir.entries[i]->name, verbose);
+       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) ||
-                   close(newfd) || commit_locked_index(&lock_file))
+                   commit_locked_index(&lock_file))
                        die("Unable to write new index file");
        }
 
-       return 0;
+       return exit_status;
 }