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-rw-r--r--builtin/pull.c153
1 files changed, 114 insertions, 39 deletions
diff --git a/builtin/pull.c b/builtin/pull.c
index 53bc5facfd..f1fa6db74e 100644
--- a/builtin/pull.c
+++ b/builtin/pull.c
@@ -5,15 +5,17 @@
*
* Fetch one or more remote refs and merge it/them into the current HEAD.
*/
+#define USE_THE_INDEX_COMPATIBILITY_MACROS
#include "cache.h"
#include "config.h"
#include "builtin.h"
#include "parse-options.h"
#include "exec-cmd.h"
#include "run-command.h"
-#include "sha1-array.h"
+#include "oid-array.h"
#include "remote.h"
#include "dir.h"
+#include "rebase.h"
#include "refs.h"
#include "refspec.h"
#include "revision.h"
@@ -22,15 +24,8 @@
#include "tempfile.h"
#include "lockfile.h"
#include "wt-status.h"
-
-enum rebase_type {
- REBASE_INVALID = -1,
- REBASE_FALSE = 0,
- REBASE_TRUE,
- REBASE_PRESERVE,
- REBASE_MERGES,
- REBASE_INTERACTIVE
-};
+#include "commit-reach.h"
+#include "sequencer.h"
/**
* Parses the value of --rebase. If value is a false value, returns
@@ -42,18 +37,9 @@ enum rebase_type {
static enum rebase_type parse_config_rebase(const char *key, const char *value,
int fatal)
{
- int v = git_parse_maybe_bool(value);
-
- if (!v)
- return REBASE_FALSE;
- else if (v > 0)
- return REBASE_TRUE;
- else if (!strcmp(value, "preserve") || !strcmp(value, "p"))
- return REBASE_PRESERVE;
- else if (!strcmp(value, "merges") || !strcmp(value, "m"))
- return REBASE_MERGES;
- else if (!strcmp(value, "interactive") || !strcmp(value, "i"))
- return REBASE_INTERACTIVE;
+ enum rebase_type v = rebase_parse_value(value);
+ if (v != REBASE_INVALID)
+ return v;
if (fatal)
die(_("Invalid value for %s: %s"), key, value);
@@ -95,10 +81,12 @@ static char *opt_signoff;
static char *opt_squash;
static char *opt_commit;
static char *opt_edit;
+static char *cleanup_arg;
static char *opt_ff;
static char *opt_verify_signatures;
static int opt_autostash = -1;
static int config_autostash;
+static int check_trust_level = 1;
static struct argv_array opt_strategies = ARGV_ARRAY_INIT;
static struct argv_array opt_strategy_opts = ARGV_ARRAY_INIT;
static char *opt_gpg_sign;
@@ -120,6 +108,9 @@ static char *opt_update_shallow;
static char *opt_refmap;
static char *opt_ipv4;
static char *opt_ipv6;
+static int opt_show_forced_updates = -1;
+static char *set_upstream;
+static struct argv_array opt_fetch = ARGV_ARRAY_INIT;
static struct option pull_options[] = {
/* Shared options */
@@ -135,7 +126,7 @@ 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|merges|preserve|interactive",
+ "(false|true|merges|preserve|interactive)",
N_("incorporate changes by rebasing rather than merging"),
PARSE_OPT_OPTARG, parse_opt_rebase },
OPT_PASSTHRU('n', NULL, &opt_diffstat, NULL,
@@ -162,6 +153,7 @@ static struct option pull_options[] = {
OPT_PASSTHRU(0, "edit", &opt_edit, NULL,
N_("edit message before committing"),
PARSE_OPT_NOARG),
+ OPT_CLEANUP(&cleanup_arg),
OPT_PASSTHRU(0, "ff", &opt_ff, NULL,
N_("allow fast-forward"),
PARSE_OPT_NOARG),
@@ -172,7 +164,7 @@ static struct option pull_options[] = {
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")),
+ N_("automatically stash/stash pop before and after")),
OPT_PASSTHRU_ARGV('s', "strategy", &opt_strategies, N_("strategy"),
N_("merge strategy to use"),
0),
@@ -216,6 +208,15 @@ static struct option pull_options[] = {
OPT_PASSTHRU(0, "depth", &opt_depth, N_("depth"),
N_("deepen history of shallow clone"),
0),
+ OPT_PASSTHRU_ARGV(0, "shallow-since", &opt_fetch, N_("time"),
+ N_("deepen history of shallow repository based on time"),
+ 0),
+ OPT_PASSTHRU_ARGV(0, "shallow-exclude", &opt_fetch, N_("revision"),
+ N_("deepen history of shallow clone, excluding rev"),
+ 0),
+ OPT_PASSTHRU_ARGV(0, "deepen", &opt_fetch, N_("n"),
+ N_("deepen history of shallow clone"),
+ 0),
OPT_PASSTHRU(0, "unshallow", &opt_unshallow, NULL,
N_("convert to a complete repository"),
PARSE_OPT_NONEG | PARSE_OPT_NOARG),
@@ -225,12 +226,24 @@ static struct option pull_options[] = {
OPT_PASSTHRU(0, "refmap", &opt_refmap, N_("refmap"),
N_("specify fetch refmap"),
PARSE_OPT_NONEG),
+ OPT_PASSTHRU_ARGV('o', "server-option", &opt_fetch,
+ N_("server-specific"),
+ N_("option to transmit"),
+ 0),
OPT_PASSTHRU('4', "ipv4", &opt_ipv4, NULL,
N_("use IPv4 addresses only"),
PARSE_OPT_NOARG),
OPT_PASSTHRU('6', "ipv6", &opt_ipv6, NULL,
N_("use IPv6 addresses only"),
PARSE_OPT_NOARG),
+ OPT_PASSTHRU_ARGV(0, "negotiation-tip", &opt_fetch, N_("revision"),
+ N_("report that we have only objects reachable from this object"),
+ 0),
+ OPT_BOOL(0, "show-forced-updates", &opt_show_forced_updates,
+ N_("check for forced-updates on all updated branches")),
+ OPT_PASSTHRU(0, "set-upstream", &set_upstream, NULL,
+ N_("set upstream for git pull/fetch"),
+ PARSE_OPT_NOARG),
OPT_END()
};
@@ -331,6 +344,22 @@ static enum rebase_type config_get_rebase(void)
if (!git_config_get_value("pull.rebase", &value))
return parse_config_rebase("pull.rebase", value, 1);
+ if (opt_verbosity >= 0 &&
+ (!opt_ff || strcmp(opt_ff, "--ff-only"))) {
+ warning(_("Pulling without specifying how to reconcile divergent branches is\n"
+ "discouraged. You can squelch this message by running one of the following\n"
+ "commands sometime before your next pull:\n"
+ "\n"
+ " git config pull.rebase false # merge (the default strategy)\n"
+ " git config pull.rebase true # rebase\n"
+ " git config pull.ff only # fast-forward only\n"
+ "\n"
+ "You can replace \"git config\" with \"git config --global\" to set a default\n"
+ "preference for all repositories. You can also pass --rebase, --no-rebase,\n"
+ "or --ff-only on the command line to override the configured default per\n"
+ "invocation.\n"));
+ }
+
return REBASE_FALSE;
}
@@ -339,6 +368,8 @@ static enum rebase_type config_get_rebase(void)
*/
static int git_pull_config(const char *var, const char *value, void *cb)
{
+ int status;
+
if (!strcmp(var, "rebase.autostash")) {
config_autostash = git_config_bool(var, value);
return 0;
@@ -346,7 +377,14 @@ static int git_pull_config(const char *var, const char *value, void *cb)
recurse_submodules = git_config_bool(var, value) ?
RECURSE_SUBMODULES_ON : RECURSE_SUBMODULES_OFF;
return 0;
+ } else if (!strcmp(var, "gpg.mintrustlevel")) {
+ check_trust_level = 0;
}
+
+ status = git_gpg_config(var, value, cb);
+ if (status)
+ return status;
+
return git_default_config(var, value, cb);
}
@@ -363,9 +401,10 @@ static void get_merge_heads(struct oid_array *merge_heads)
fp = xfopen(filename, "r");
while (strbuf_getline_lf(&sb, fp) != EOF) {
- if (get_oid_hex(sb.buf, &oid))
- continue; /* invalid line: does not start with SHA1 */
- if (starts_with(sb.buf + GIT_SHA1_HEXSZ, "\tnot-for-merge\t"))
+ const char *p;
+ if (parse_oid_hex(sb.buf, &oid, &p))
+ continue; /* invalid line: does not start with object ID */
+ if (starts_with(p, "\tnot-for-merge\t"))
continue; /* ref is not-for-merge */
oid_array_append(merge_heads, &oid);
}
@@ -539,6 +578,13 @@ static int run_fetch(const char *repo, const char **refspecs)
argv_array_push(&args, opt_ipv4);
if (opt_ipv6)
argv_array_push(&args, opt_ipv6);
+ if (opt_show_forced_updates > 0)
+ argv_array_push(&args, "--show-forced-updates");
+ else if (opt_show_forced_updates == 0)
+ argv_array_push(&args, "--no-show-forced-updates");
+ if (set_upstream)
+ argv_array_push(&args, set_upstream);
+ argv_array_pushv(&args, opt_fetch.argv);
if (repo) {
argv_array_push(&args, repo);
@@ -556,13 +602,27 @@ static int run_fetch(const char *repo, const char **refspecs)
static int pull_into_void(const struct object_id *merge_head,
const struct object_id *curr_head)
{
+ if (opt_verify_signatures) {
+ struct commit *commit;
+
+ commit = lookup_commit(the_repository, merge_head);
+ if (!commit)
+ die(_("unable to access commit %s"),
+ oid_to_hex(merge_head));
+
+ verify_merge_signature(commit, opt_verbosity,
+ check_trust_level);
+ }
+
/*
* Two-way merge: we treat the index as based on an empty tree,
* and try to fast-forward to HEAD. This ensures we will not lose
* index/worktree changes that the user already made on the unborn
* branch.
*/
- if (checkout_fast_forward(the_hash_algo->empty_tree, merge_head, 0))
+ if (checkout_fast_forward(the_repository,
+ the_hash_algo->empty_tree,
+ merge_head, 0))
return 1;
if (update_ref("initial pull", "HEAD", merge_head, curr_head, 0, UPDATE_REFS_DIE_ON_ERR))
@@ -625,6 +685,8 @@ static int run_merge(void)
argv_array_push(&args, opt_commit);
if (opt_edit)
argv_array_push(&args, opt_edit);
+ if (cleanup_arg)
+ argv_array_pushf(&args, "--cleanup=%s", cleanup_arg);
if (opt_ff)
argv_array_push(&args, opt_ff);
if (opt_verify_signatures)
@@ -633,6 +695,10 @@ 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_autostash == 0)
+ argv_array_push(&args, "--no-autostash");
+ else if (opt_autostash == 1)
+ argv_array_push(&args, "--autostash");
if (opt_allow_unrelated_histories > 0)
argv_array_push(&args, "--allow-unrelated-histories");
@@ -741,7 +807,7 @@ static int get_rebase_fork_point(struct object_id *fork_point, const char *repo,
cp.no_stderr = 1;
cp.git_cmd = 1;
- ret = capture_command(&cp, &sb, GIT_SHA1_HEXSZ);
+ ret = capture_command(&cp, &sb, GIT_MAX_HEXSZ);
if (ret)
goto cleanup;
@@ -786,7 +852,7 @@ static int get_octopus_merge_base(struct object_id *merge_base,
}
/**
- * Given the current HEAD SHA1, the merge head returned from git-fetch and the
+ * Given the current HEAD oid, the merge head returned from git-fetch and the
* fork point calculated by get_rebase_fork_point(), runs git-rebase with the
* appropriate arguments and returns its exit status.
*/
@@ -799,7 +865,7 @@ static int run_rebase(const struct object_id *curr_head,
struct argv_array args = ARGV_ARRAY_INIT;
if (!get_octopus_merge_base(&oct_merge_base, curr_head, merge_head, fork_point))
- if (!is_null_oid(fork_point) && !oidcmp(&oct_merge_base, fork_point))
+ if (!is_null_oid(fork_point) && oideq(&oct_merge_base, fork_point))
fork_point = NULL;
argv_array_push(&args, "rebase");
@@ -856,6 +922,13 @@ int cmd_pull(int argc, const char **argv, const char *prefix)
argc = parse_options(argc, argv, prefix, pull_options, pull_usage, 0);
+ if (cleanup_arg)
+ /*
+ * this only checks the validity of cleanup_arg; we don't need
+ * a valid value for use_editor
+ */
+ get_cleanup_mode(cleanup_arg, 0);
+
parse_repo_refspecs(argc, argv, &repo, &refspecs);
if (!opt_ff)
@@ -873,9 +946,6 @@ int cmd_pull(int argc, const char **argv, const char *prefix)
if (get_oid("HEAD", &orig_head))
oidclr(&orig_head);
- if (!opt_rebase && opt_autostash != -1)
- die(_("--[no-]autostash option is only valid with --rebase."));
-
autostash = config_autostash;
if (opt_rebase) {
if (opt_autostash != -1)
@@ -885,7 +955,8 @@ int cmd_pull(int argc, const char **argv, const char *prefix)
die(_("Updating an unborn branch with changes added to the index."));
if (!autostash)
- require_clean_work_tree(N_("pull with rebase"),
+ require_clean_work_tree(the_repository,
+ N_("pull with rebase"),
_("please commit or stash them."), 1, 0);
if (get_rebase_fork_point(&rebase_fork_point, repo, *refspecs))
@@ -902,7 +973,7 @@ int cmd_pull(int argc, const char **argv, const char *prefix)
oidclr(&curr_head);
if (!is_null_oid(&orig_head) && !is_null_oid(&curr_head) &&
- oidcmp(&orig_head, &curr_head)) {
+ !oideq(&orig_head, &curr_head)) {
/*
* The fetch involved updating the current branch.
*
@@ -915,7 +986,8 @@ int cmd_pull(int argc, const char **argv, const char *prefix)
"fast-forwarding your working tree from\n"
"commit %s."), oid_to_hex(&orig_head));
- if (checkout_fast_forward(&orig_head, &curr_head, 0))
+ if (checkout_fast_forward(the_repository, &orig_head,
+ &curr_head, 0))
die(_("Cannot fast-forward your working tree.\n"
"After making sure that you saved anything precious from\n"
"$ git diff %s\n"
@@ -939,9 +1011,10 @@ int cmd_pull(int argc, const char **argv, const char *prefix)
if (opt_rebase) {
int ret = 0;
+ int ran_ff = 0;
if ((recurse_submodules == RECURSE_SUBMODULES_ON ||
recurse_submodules == RECURSE_SUBMODULES_ON_DEMAND) &&
- submodule_touches_in_range(&rebase_fork_point, &curr_head))
+ submodule_touches_in_range(the_repository, &rebase_fork_point, &curr_head))
die(_("cannot rebase with locally recorded submodule modifications"));
if (!autostash) {
struct commit_list *list = NULL;
@@ -955,10 +1028,12 @@ int cmd_pull(int argc, const char **argv, const char *prefix)
if (is_descendant_of(merge_head, list)) {
/* we can fast-forward this without invoking rebase */
opt_ff = "--ff-only";
+ ran_ff = 1;
ret = run_merge();
}
}
- ret = run_rebase(&curr_head, merge_heads.oid, &rebase_fork_point);
+ if (!ran_ff)
+ ret = run_rebase(&curr_head, merge_heads.oid, &rebase_fork_point);
if (!ret && (recurse_submodules == RECURSE_SUBMODULES_ON ||
recurse_submodules == RECURSE_SUBMODULES_ON_DEMAND))