Merge branch 'jt/mailinfo-fold-in-body-headers'
[gitweb.git] / builtin / pull.c
index 2a41d415b2df1e789f8cf466306e92ec242923c1..3ecb881b0bcacbf1a453bf9a6cb95ae00cdecb1d 100644 (file)
 #include "revision.h"
 #include "tempfile.h"
 #include "lockfile.h"
+#include "wt-status.h"
 
 enum rebase_type {
        REBASE_INVALID = -1,
        REBASE_FALSE = 0,
        REBASE_TRUE,
-       REBASE_PRESERVE
+       REBASE_PRESERVE,
+       REBASE_INTERACTIVE
 };
 
 /**
@@ -42,6 +44,8 @@ static enum rebase_type parse_config_rebase(const char *key, const char *value,
                return REBASE_TRUE;
        else if (!strcmp(value, "preserve"))
                return REBASE_PRESERVE;
+       else if (!strcmp(value, "interactive"))
+               return REBASE_INTERACTIVE;
 
        if (fatal)
                die(_("Invalid value for %s: %s"), key, value);
@@ -83,9 +87,12 @@ static char *opt_commit;
 static char *opt_edit;
 static char *opt_ff;
 static char *opt_verify_signatures;
+static int opt_autostash = -1;
+static int config_autostash;
 static struct argv_array opt_strategies = ARGV_ARRAY_INIT;
 static struct argv_array opt_strategy_opts = ARGV_ARRAY_INIT;
 static char *opt_gpg_sign;
+static int opt_allow_unrelated_histories;
 
 /* Options passed to git-fetch */
 static char *opt_all;
@@ -95,6 +102,7 @@ static int opt_force;
 static char *opt_tags;
 static char *opt_prune;
 static char *opt_recurse_submodules;
+static char *max_children;
 static int opt_dry_run;
 static char *opt_keep;
 static char *opt_depth;
@@ -112,7 +120,7 @@ static struct option pull_options[] = {
        /* Options passed to git-merge or git-rebase */
        OPT_GROUP(N_("Options related to merging")),
        { OPTION_CALLBACK, 'r', "rebase", &opt_rebase,
-         "false|true|preserve",
+         "false|true|preserve|interactive",
          N_("incorporate changes by rebasing rather than merging"),
          PARSE_OPT_OPTARG, parse_opt_rebase },
        OPT_PASSTHRU('n', NULL, &opt_diffstat, NULL,
@@ -145,6 +153,8 @@ static struct option pull_options[] = {
        OPT_PASSTHRU(0, "verify-signatures", &opt_verify_signatures, NULL,
                N_("verify that the named commit has a valid GPG signature"),
                PARSE_OPT_NOARG),
+       OPT_BOOL(0, "autostash", &opt_autostash,
+               N_("automatically stash/stash pop before and after rebase")),
        OPT_PASSTHRU_ARGV('s', "strategy", &opt_strategies, N_("strategy"),
                N_("merge strategy to use"),
                0),
@@ -155,6 +165,9 @@ static struct option pull_options[] = {
        OPT_PASSTHRU('S', "gpg-sign", &opt_gpg_sign, N_("key-id"),
                N_("GPG sign commit"),
                PARSE_OPT_OPTARG),
+       OPT_SET_INT(0, "allow-unrelated-histories",
+                   &opt_allow_unrelated_histories,
+                   N_("allow merging unrelated histories"), 1),
 
        /* Options passed to git-fetch */
        OPT_GROUP(N_("Options related to fetching")),
@@ -178,6 +191,9 @@ static struct option pull_options[] = {
                N_("on-demand"),
                N_("control recursive fetching of submodules"),
                PARSE_OPT_OPTARG),
+       OPT_PASSTHRU('j', "jobs", &max_children, N_("n"),
+               N_("number of submodules pulled in parallel"),
+               PARSE_OPT_OPTARG),
        OPT_BOOL(0, "dry-run", &opt_dry_run,
                N_("dry run")),
        OPT_PASSTHRU('k', "keep", &opt_keep, NULL,
@@ -299,70 +315,15 @@ static enum rebase_type config_get_rebase(void)
 }
 
 /**
- * Returns 1 if there are unstaged changes, 0 otherwise.
- */
-static int has_unstaged_changes(const char *prefix)
-{
-       struct rev_info rev_info;
-       int result;
-
-       init_revisions(&rev_info, prefix);
-       DIFF_OPT_SET(&rev_info.diffopt, IGNORE_SUBMODULES);
-       DIFF_OPT_SET(&rev_info.diffopt, QUICK);
-       diff_setup_done(&rev_info.diffopt);
-       result = run_diff_files(&rev_info, 0);
-       return diff_result_code(&rev_info.diffopt, result);
-}
-
-/**
- * Returns 1 if there are uncommitted changes, 0 otherwise.
+ * Read config variables.
  */
-static int has_uncommitted_changes(const char *prefix)
+static int git_pull_config(const char *var, const char *value, void *cb)
 {
-       struct rev_info rev_info;
-       int result;
-
-       if (is_cache_unborn())
+       if (!strcmp(var, "rebase.autostash")) {
+               config_autostash = git_config_bool(var, value);
                return 0;
-
-       init_revisions(&rev_info, prefix);
-       DIFF_OPT_SET(&rev_info.diffopt, IGNORE_SUBMODULES);
-       DIFF_OPT_SET(&rev_info.diffopt, QUICK);
-       add_head_to_pending(&rev_info);
-       diff_setup_done(&rev_info.diffopt);
-       result = run_diff_index(&rev_info, 1);
-       return diff_result_code(&rev_info.diffopt, result);
-}
-
-/**
- * If the work tree has unstaged or uncommitted changes, dies with the
- * appropriate message.
- */
-static void die_on_unclean_work_tree(const char *prefix)
-{
-       struct lock_file *lock_file = xcalloc(1, sizeof(*lock_file));
-       int do_die = 0;
-
-       hold_locked_index(lock_file, 0);
-       refresh_cache(REFRESH_QUIET);
-       update_index_if_able(&the_index, lock_file);
-       rollback_lock_file(lock_file);
-
-       if (has_unstaged_changes(prefix)) {
-               error(_("Cannot pull with rebase: You have unstaged changes."));
-               do_die = 1;
-       }
-
-       if (has_uncommitted_changes(prefix)) {
-               if (do_die)
-                       error(_("Additionally, your index contains uncommitted changes."));
-               else
-                       error(_("Cannot pull with rebase: Your index contains uncommitted changes."));
-               do_die = 1;
        }
-
-       if (do_die)
-               exit(1);
+       return git_default_config(var, value, cb);
 }
 
 /**
@@ -378,7 +339,7 @@ static void get_merge_heads(struct sha1_array *merge_heads)
 
        if (!(fp = fopen(filename, "r")))
                die_errno(_("could not open '%s' for reading"), filename);
-       while (strbuf_getline(&sb, fp, '\n') != EOF) {
+       while (strbuf_getline_lf(&sb, fp) != EOF) {
                if (get_sha1_hex(sb.buf, sha1))
                        continue;  /* invalid line: does not start with SHA1 */
                if (starts_with(sb.buf + GIT_SHA1_HEXSZ, "\tnot-for-merge\t"))
@@ -451,13 +412,13 @@ static void NORETURN die_no_merge_candidates(const char *repo, const char **refs
                        fprintf_ln(stderr, _("Please specify which branch you want to merge with."));
                fprintf_ln(stderr, _("See git-pull(1) for details."));
                fprintf(stderr, "\n");
-               fprintf_ln(stderr, "    git pull <remote> <branch>");
+               fprintf_ln(stderr, "    git pull %s %s", _("<remote>"), _("<branch>"));
                fprintf(stderr, "\n");
        } else if (!curr_branch->merge_nr) {
                const char *remote_name = NULL;
 
                if (for_each_remote(get_only_remote, &remote_name) || !remote_name)
-                       remote_name = "<remote>";
+                       remote_name = _("<remote>");
 
                fprintf_ln(stderr, _("There is no tracking information for the current branch."));
                if (opt_rebase)
@@ -466,12 +427,12 @@ static void NORETURN die_no_merge_candidates(const char *repo, const char **refs
                        fprintf_ln(stderr, _("Please specify which branch you want to merge with."));
                fprintf_ln(stderr, _("See git-pull(1) for details."));
                fprintf(stderr, "\n");
-               fprintf_ln(stderr, "    git pull <remote> <branch>");
+               fprintf_ln(stderr, "    git pull %s %s", _("<remote>"), _("<branch>"));
                fprintf(stderr, "\n");
-               fprintf_ln(stderr, _("If you wish to set tracking information for this branch you can do so with:\n"
-                               "\n"
-                               "    git branch --set-upstream-to=%s/<branch> %s\n"),
-                               remote_name, curr_branch->name);
+               fprintf_ln(stderr, _("If you wish to set tracking information for this branch you can do so with:"));
+               fprintf(stderr, "\n");
+               fprintf_ln(stderr, "    git branch --set-upstream-to=%s/%s %s\n",
+                               remote_name, _("<branch>"), curr_branch->name);
        } else
                fprintf_ln(stderr, _("Your configuration specifies to merge with the ref '%s'\n"
                        "from the remote, but no such ref was fetched."),
@@ -525,6 +486,8 @@ static int run_fetch(const char *repo, const char **refspecs)
                argv_array_push(&args, opt_prune);
        if (opt_recurse_submodules)
                argv_array_push(&args, opt_recurse_submodules);
+       if (max_children)
+               argv_array_push(&args, max_children);
        if (opt_dry_run)
                argv_array_push(&args, "--dry-run");
        if (opt_keep)
@@ -603,6 +566,8 @@ static int run_merge(void)
        argv_array_pushv(&args, opt_strategy_opts.argv);
        if (opt_gpg_sign)
                argv_array_push(&args, opt_gpg_sign);
+       if (opt_allow_unrelated_histories > 0)
+               argv_array_push(&args, "--allow-unrelated-histories");
 
        argv_array_push(&args, "FETCH_HEAD");
        ret = run_command_v_opt(args.argv, RUN_GIT_CMD);
@@ -743,7 +708,7 @@ static int get_octopus_merge_base(unsigned char *merge_base,
        if (!result)
                return 1;
 
-       hashcpy(merge_base, result->item->object.sha1);
+       hashcpy(merge_base, result->item->object.oid.hash);
        return 0;
 }
 
@@ -772,12 +737,21 @@ static int run_rebase(const unsigned char *curr_head,
        /* Options passed to git-rebase */
        if (opt_rebase == REBASE_PRESERVE)
                argv_array_push(&args, "--preserve-merges");
+       else if (opt_rebase == REBASE_INTERACTIVE)
+               argv_array_push(&args, "--interactive");
        if (opt_diffstat)
                argv_array_push(&args, opt_diffstat);
        argv_array_pushv(&args, opt_strategies.argv);
        argv_array_pushv(&args, opt_strategy_opts.argv);
        if (opt_gpg_sign)
                argv_array_push(&args, opt_gpg_sign);
+       if (opt_autostash == 0)
+               argv_array_push(&args, "--no-autostash");
+       else if (opt_autostash == 1)
+               argv_array_push(&args, "--autostash");
+       if (opt_verify_signatures &&
+           !strcmp(opt_verify_signatures, "--verify-signatures"))
+               warning(_("ignoring --verify-signatures for rebase"));
 
        argv_array_push(&args, "--onto");
        argv_array_push(&args, sha1_to_hex(merge_head));
@@ -812,10 +786,10 @@ int cmd_pull(int argc, const char **argv, const char *prefix)
        if (opt_rebase < 0)
                opt_rebase = config_get_rebase();
 
-       git_config(git_default_config, NULL);
+       git_config(git_pull_config, NULL);
 
        if (read_cache_unmerged())
-               die_resolve_conflict("Pull");
+               die_resolve_conflict("pull");
 
        if (file_exists(git_path("MERGE_HEAD")))
                die_conclude_merge();
@@ -823,15 +797,20 @@ int cmd_pull(int argc, const char **argv, const char *prefix)
        if (get_sha1("HEAD", orig_head))
                hashclr(orig_head);
 
+       if (!opt_rebase && opt_autostash != -1)
+               die(_("--[no-]autostash option is only valid with --rebase."));
+
        if (opt_rebase) {
-               int autostash = 0;
+               int autostash = config_autostash;
+               if (opt_autostash != -1)
+                       autostash = opt_autostash;
 
                if (is_null_sha1(orig_head) && !is_cache_unborn())
                        die(_("Updating an unborn branch with changes added to the index."));
 
-               git_config_get_bool("rebase.autostash", &autostash);
                if (!autostash)
-                       die_on_unclean_work_tree(prefix);
+                       require_clean_work_tree(N_("pull with rebase"),
+                               _("please commit or stash them."), 1, 0);
 
                if (get_rebase_fork_point(rebase_fork_point, repo, *refspecs))
                        hashclr(rebase_fork_point);