basic threaded delta search
[gitweb.git] / builtin-add.c
index 9fcf514dbc4cb76e15b47142e77c4019997ecd5d..105a9f0e1f6aef67f67d985a40a036a4ba833cbe 100644 (file)
@@ -8,10 +8,15 @@
 #include "dir.h"
 #include "exec_cmd.h"
 #include "cache-tree.h"
+#include "diff.h"
+#include "diffcore.h"
+#include "commit.h"
+#include "revision.h"
 
 static const char builtin_add_usage[] =
-"git-add [-n] [-v] [-f] [--interactive | -i] [--] <filepattern>...";
+"git-add [-n] [-v] [-f] [--interactive | -i] [-u] [--refresh] [--] <filepattern>...";
 
+static int take_worktree_changes;
 static const char *excludes_file;
 
 static void prune_directory(struct dir_struct *dir, const char **pathspec, int prefix)
@@ -35,42 +40,29 @@ static void prune_directory(struct dir_struct *dir, const char **pathspec, int p
        dir->nr = dst - dir->entries;
 
        for (i = 0; i < specs; i++) {
-               struct stat st;
-               const char *match;
-               if (seen[i])
-                       continue;
-
-               match = pathspec[i];
-               if (!match[0])
-                       continue;
-
-               /* Existing file? We must have ignored it */
-               if (!lstat(match, &st)) {
-                       struct dir_entry *ent;
-
-                       ent = dir_add_name(dir, match, strlen(match));
-                       ent->ignored = 1;
-                       if (S_ISDIR(st.st_mode))
-                               ent->ignored_dir = 1;
-                       continue;
-               }
-               die("pathspec '%s' did not match any files", match);
+               if (!seen[i] && !file_exists(pathspec[i]))
+                       die("pathspec '%s' did not match any files",
+                                       pathspec[i]);
        }
 }
 
-static void fill_directory(struct dir_struct *dir, const char **pathspec)
+static void fill_directory(struct dir_struct *dir, const char **pathspec,
+               int ignored_too)
 {
        const char *path, *base;
        int baselen;
 
        /* Set up the default git porcelain excludes */
        memset(dir, 0, sizeof(*dir));
-       dir->exclude_per_dir = ".gitignore";
-       path = git_path("info/exclude");
-       if (!access(path, R_OK))
-               add_excludes_from_file(dir, path);
-       if (!access(excludes_file, R_OK))
-               add_excludes_from_file(dir, excludes_file);
+       if (!ignored_too) {
+               dir->collect_ignored = 1;
+               dir->exclude_per_dir = ".gitignore";
+               path = git_path("info/exclude");
+               if (!access(path, R_OK))
+                       add_excludes_from_file(dir, path);
+               if (excludes_file != NULL && !access(excludes_file, R_OK))
+                       add_excludes_from_file(dir, excludes_file);
+       }
 
        /*
         * Calculate common prefix for the pathspec, and
@@ -87,11 +79,68 @@ static void fill_directory(struct dir_struct *dir, const char **pathspec)
        }
 
        /* Read the directory and prune it */
-       read_directory(dir, path, base, baselen);
+       read_directory(dir, path, base, baselen, pathspec);
        if (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("unexpacted diff status %c", p->status);
+               case DIFF_STATUS_UNMERGED:
+               case DIFF_STATUS_MODIFIED:
+                       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, 0);
+}
+
+static void refresh(int verbose, const char **pathspec)
+{
+       char *seen;
+       int i, specs;
+
+       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);
+       for (i = 0; i < specs; i++) {
+               if (!seen[i])
+                       die("pathspec '%s' did not match any files", pathspec[i]);
+       }
+}
+
 static int git_add_config(const char *var, const char *value)
 {
        if (!strcmp(var, "core.excludesfile")) {
@@ -106,13 +155,13 @@ static int git_add_config(const char *var, const char *value)
 
 static struct lock_file lock_file;
 
-static const char ignore_warning[] =
+static const char ignore_error[] =
 "The following paths are ignored by one of your .gitignore files:\n";
 
 int cmd_add(int argc, const char **argv, const char *prefix)
 {
        int i, newfd;
-       int verbose = 0, show_only = 0, ignored_too = 0;
+       int verbose = 0, show_only = 0, ignored_too = 0, refresh_only = 0;
        const char **pathspec;
        struct dir_struct dir;
        int add_interactive = 0;
@@ -133,7 +182,7 @@ int cmd_add(int argc, const char **argv, const char *prefix)
 
        git_config(git_add_config);
 
-       newfd = hold_lock_file_for_update(&lock_file, get_index_file(), 1);
+       newfd = hold_locked_index(&lock_file, 1);
 
        for (i = 1; i < argc; i++) {
                const char *arg = argv[i];
@@ -156,8 +205,22 @@ int cmd_add(int argc, const char **argv, const char *prefix)
                        verbose = 1;
                        continue;
                }
+               if (!strcmp(arg, "-u")) {
+                       take_worktree_changes = 1;
+                       continue;
+               }
+               if (!strcmp(arg, "--refresh")) {
+                       refresh_only = 1;
+                       continue;
+               }
                usage(builtin_add_usage);
        }
+
+       if (take_worktree_changes) {
+               update(verbose, prefix, argv + i);
+               goto finish;
+       }
+
        if (argc <= i) {
                fprintf(stderr, "Nothing specified, nothing added.\n");
                fprintf(stderr, "Maybe you wanted to say 'git add .'?\n");
@@ -165,13 +228,16 @@ int cmd_add(int argc, const char **argv, const char *prefix)
        }
        pathspec = get_pathspec(prefix, argv + i);
 
-       fill_directory(&dir, pathspec);
+       if (refresh_only) {
+               refresh(verbose, pathspec);
+               goto finish;
+       }
+
+       fill_directory(&dir, pathspec, ignored_too);
 
        if (show_only) {
                const char *sep = "", *eof = "";
                for (i = 0; i < dir.nr; i++) {
-                       if (!ignored_too && dir.entries[i]->ignored)
-                               continue;
                        printf("%s%s", sep, dir.entries[i]->name);
                        sep = " ";
                        eof = "\n";
@@ -183,33 +249,22 @@ int cmd_add(int argc, const char **argv, const char *prefix)
        if (read_cache() < 0)
                die("index file corrupt");
 
-       if (!ignored_too) {
-               int has_ignored = 0;
-               for (i = 0; i < dir.nr; i++)
-                       if (dir.entries[i]->ignored)
-                               has_ignored = 1;
-               if (has_ignored) {
-                       fprintf(stderr, ignore_warning);
-                       for (i = 0; i < dir.nr; i++) {
-                               if (!dir.entries[i]->ignored)
-                                       continue;
-                               fprintf(stderr, "%s", dir.entries[i]->name);
-                               if (dir.entries[i]->ignored_dir)
-                                       fprintf(stderr, " (directory)");
-                               fputc('\n', stderr);
-                       }
-                       fprintf(stderr,
-                               "Use -f if you really want to add them.\n");
-                       exit(1);
+       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++)
-               add_file_to_index(dir.entries[i]->name, verbose);
+               add_file_to_cache(dir.entries[i]->name, verbose);
 
+ finish:
        if (active_cache_changed) {
                if (write_cache(newfd, active_cache, active_nr) ||
-                   close(newfd) || commit_lock_file(&lock_file))
+                   close(newfd) || commit_locked_index(&lock_file))
                        die("Unable to write new index file");
        }