diff options
| -rw-r--r-- | Documentation/git-checkout.txt | 13 | ||||
| -rw-r--r-- | builtin-checkout.c | 26 | ||||
| -rw-r--r-- | cache.h | 1 | ||||
| -rwxr-xr-x | t/t7201-co.sh | 23 |
4 files changed, 46 insertions, 17 deletions
diff --git a/Documentation/git-checkout.txt b/Documentation/git-checkout.txt index 43d4502..be54a02 100644 --- a/Documentation/git-checkout.txt +++ b/Documentation/git-checkout.txt @@ -64,9 +64,16 @@ OPTIONS given. Set it to `always` if you want this behavior when the start-point is either a local or remote branch. + -If no '-b' option was given, a name will be made up for you, by stripping -the part up to the first slash of the tracked branch. For example, if you -called 'git checkout --track origin/next', the branch name will be 'next'. +If no '-b' option was given, the name of the new branch will be +derived from the remote branch, by attempting to guess the name +of the branch on remote system. If "remotes/" or "refs/remotes/" +are prefixed, it is stripped away, and then the part up to the +next slash (which would be the nickname of the remote) is removed. +This would tell us to use "hack" as the local branch when branching +off of "origin/hack" (or "remotes/origin/hack", or even +"refs/remotes/origin/hack"). If the given name has no slash, or the above +guessing results in an empty name, the guessing is aborted. You can +exlicitly give a name with '-b' in such a case. --no-track:: Ignore the branch.autosetupmerge configuration variable. diff --git a/builtin-checkout.c b/builtin-checkout.c index e95eab9..b380ad6 100644 --- a/builtin-checkout.c +++ b/builtin-checkout.c @@ -157,7 +157,7 @@ struct checkout_opts { int force; int writeout_error; - char *new_branch; + const char *new_branch; int new_branch_log; enum branch_track track; }; @@ -437,27 +437,27 @@ int cmd_checkout(int argc, const char **argv, const char *prefix) git_config(git_default_config, NULL); - opts.track = -1; + opts.track = BRANCH_TRACK_UNSPECIFIED; argc = parse_options(argc, argv, options, checkout_usage, PARSE_OPT_KEEP_DASHDASH); /* --track without -b should DWIM */ - if (opts.track && opts.track != -1 && !opts.new_branch) { - char *slash; - if (!argc || !strcmp(argv[0], "--")) + if (0 < opts.track && !opts.new_branch) { + const char *argv0 = argv[0]; + if (!argc || !strcmp(argv0, "--")) die ("--track needs a branch name"); - slash = strchr(argv[0], '/'); - if (slash && !prefixcmp(argv[0], "refs/")) - slash = strchr(slash + 1, '/'); - if (slash && !prefixcmp(argv[0], "remotes/")) - slash = strchr(slash + 1, '/'); - if (!slash || !slash[1]) + if (!prefixcmp(argv0, "refs/")) + argv0 += 5; + if (!prefixcmp(argv0, "remotes/")) + argv0 += 8; + argv0 = strchr(argv0, '/'); + if (!argv0 || !argv0[1]) die ("Missing branch name; try -b"); - opts.new_branch = slash + 1; + opts.new_branch = argv0 + 1; } - if (opts.track == -1) + if (opts.track == BRANCH_TRACK_UNSPECIFIED) opts.track = git_branch_track; if (opts.force && opts.merge) @@ -451,6 +451,7 @@ enum safe_crlf { extern enum safe_crlf safe_crlf; enum branch_track { + BRANCH_TRACK_UNSPECIFIED = -1, BRANCH_TRACK_NEVER = 0, BRANCH_TRACK_REMOTE, BRANCH_TRACK_ALWAYS, diff --git a/t/t7201-co.sh b/t/t7201-co.sh index 943dd57..1dff84d 100755 --- a/t/t7201-co.sh +++ b/t/t7201-co.sh @@ -340,9 +340,30 @@ test_expect_success \ test_expect_success \ 'checkout with --track fakes a sensible -b <name>' ' git update-ref refs/remotes/origin/koala/bear renamer && + git update-ref refs/new/koala/bear renamer && + git checkout --track origin/koala/bear && test "refs/heads/koala/bear" = "$(git symbolic-ref HEAD)" && - test "$(git rev-parse HEAD)" = "$(git rev-parse renamer)"' + test "$(git rev-parse HEAD)" = "$(git rev-parse renamer)" && + + git checkout master && git branch -D koala/bear && + + git checkout --track refs/remotes/origin/koala/bear && + test "refs/heads/koala/bear" = "$(git symbolic-ref HEAD)" && + test "$(git rev-parse HEAD)" = "$(git rev-parse renamer)" && + + git checkout master && git branch -D koala/bear && + + git checkout --track remotes/origin/koala/bear && + test "refs/heads/koala/bear" = "$(git symbolic-ref HEAD)" && + test "$(git rev-parse HEAD)" = "$(git rev-parse renamer)" && + + git checkout master && git branch -D koala/bear && + + git checkout --track refs/new/koala/bear && + test "refs/heads/koala/bear" = "$(git symbolic-ref HEAD)" && + test "$(git rev-parse HEAD)" = "$(git rev-parse renamer)" +' test_expect_success \ 'checkout with --track, but without -b, fails with too short tracked name' ' |