diff options
| -rw-r--r-- | Documentation/git-merge.txt | 14 | ||||
| -rw-r--r-- | Documentation/merge-options.txt | 8 | ||||
| -rw-r--r-- | builtin/pull.c | 6 | ||||
| -rwxr-xr-x | t/t3033-merge-toplevel.sh | 2 | ||||
| -rwxr-xr-x | t/t5521-pull-options.sh | 21 |
5 files changed, 37 insertions, 14 deletions
diff --git a/Documentation/git-merge.txt b/Documentation/git-merge.txt index 689aa4c57c..b758d5556c 100644 --- a/Documentation/git-merge.txt +++ b/Documentation/git-merge.txt @@ -11,6 +11,7 @@ SYNOPSIS [verse] 'git merge' [-n] [--stat] [--no-commit] [--squash] [--[no-]edit] [-s <strategy>] [-X <strategy-option>] [-S[<keyid>]] + [--[no-]allow-unrelated-histories] [--[no-]rerere-autoupdate] [-m <msg>] [<commit>...] 'git merge' <msg> HEAD <commit>... 'git merge' --abort @@ -98,19 +99,6 @@ commit or stash your changes before running 'git merge'. 'git merge --abort' is equivalent to 'git reset --merge' when `MERGE_HEAD` is present. ---allow-unrelated-histories:: - By default, `git merge` command refuses to merge histories - that do not share a common ancestor. This option can be - used to override this safety when merging histories of two - projects that started their lives independently. As that is - a very rare occasion, no configuration variable to enable - this by default exists and will not be added, and the list - of options at the top of this documentation does not mention - this option. Also `git pull` does not pass this option down - to `git merge` (instead, you `git fetch` first, examine what - you will be merging and then `git merge` locally with this - option). - <commit>...:: Commits, usually other branch heads, to merge into our branch. Specifying more than one commit will create a merge with diff --git a/Documentation/merge-options.txt b/Documentation/merge-options.txt index f08e9b80c5..dfb43d000f 100644 --- a/Documentation/merge-options.txt +++ b/Documentation/merge-options.txt @@ -114,3 +114,11 @@ ifndef::git-pull[] reporting. endif::git-pull[] + +--allow-unrelated-histories:: + By default, `git merge` command refuses to merge histories + that do not share a common ancestor. This option can be + used to override this safety when merging histories of two + projects that started their lives independently. As that is + a very rare occasion, no configuration variable to enable + this by default exists and will not be added. diff --git a/builtin/pull.c b/builtin/pull.c index d98f481d31..596b92fc56 100644 --- a/builtin/pull.c +++ b/builtin/pull.c @@ -91,6 +91,7 @@ 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; @@ -163,6 +164,9 @@ 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")), @@ -628,6 +632,8 @@ 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); diff --git a/t/t3033-merge-toplevel.sh b/t/t3033-merge-toplevel.sh index c1379b00c2..d314599428 100755 --- a/t/t3033-merge-toplevel.sh +++ b/t/t3033-merge-toplevel.sh @@ -19,7 +19,7 @@ test_expect_success setup ' test_commit three && git checkout right && test_commit four && - git checkout --orphan five && + git checkout --orphan newroot && test_commit five && git checkout master ' diff --git a/t/t5521-pull-options.sh b/t/t5521-pull-options.sh index 18372caa15..ded8f98dbe 100755 --- a/t/t5521-pull-options.sh +++ b/t/t5521-pull-options.sh @@ -144,4 +144,25 @@ test_expect_success 'git pull --all --dry-run' ' ) ' +test_expect_success 'git pull --allow-unrelated-histories' ' + test_when_finished "rm -fr src dst" && + git init src && + ( + cd src && + test_commit one && + test_commit two + ) && + git clone src dst && + ( + cd src && + git checkout --orphan side HEAD^ && + test_commit three + ) && + ( + cd dst && + test_must_fail git pull ../src side && + git pull --allow-unrelated-histories ../src side + ) +' + test_done |