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branch: description for non-existent branch errors
When the repository does not yet have commits, some errors describe that there is no branch: $ git init -b first $ git branch --edit-description first error: No branch named 'first'. $ git branch --set-upstream-to=upstream fatal: branch 'first' does not exist $ git branch -c second error: refname refs/heads/first not found fatal: Branch copy failed That "first" branch is unborn but to say it doesn't exists is confusing. Options "-c" (copy) and "-m" (rename) show the same error when the origin branch doesn't exists: $ git branch -c non-existent-branch second error: refname refs/heads/non-existent-branch not found fatal: Branch copy failed $ git branch -m non-existent-branch second error: refname refs/heads/non-existent-branch not found fatal: Branch rename failed Note that "--edit-description" without an explicit argument is already considering the _empty repository_ circumstance in its error. Also note that "-m" on the initial branch it is an allowed operation. Make the error descriptions for those branch operations with unborn or non-existent branches, more informative. This is the result of the change: $ git init -b first $ git branch --edit-description first error: No commit on branch 'first' yet. $ git branch --set-upstream-to=upstream fatal: No commit on branch 'first' yet. $ git branch -c second fatal: No commit on branch 'first' yet. $ git branch [-c/-m] non-existent-branch second fatal: No branch named 'non-existent-branch'. Signed-off-by: Rubén Justo <rjusto@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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@ -538,6 +538,13 @@ static void copy_or_rename_branch(const char *oldname, const char *newname, int
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die(_("Invalid branch name: '%s'"), oldname);
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}
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if ((copy || strcmp(head, oldname)) && !ref_exists(oldref.buf)) {
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if (copy && !strcmp(head, oldname))
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die(_("No commit on branch '%s' yet."), oldname);
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else
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die(_("No branch named '%s'."), oldname);
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}
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/*
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* A command like "git branch -M currentbranch currentbranch" cannot
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* cause the worktree to become inconsistent with HEAD, so allow it.
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@ -805,7 +812,7 @@ int cmd_branch(int argc, const char **argv, const char *prefix)
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if (!ref_exists(branch_ref.buf)) {
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strbuf_release(&branch_ref);
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if (!argc)
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if (!argc || !strcmp(head, branch_name))
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return error(_("No commit on branch '%s' yet."),
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branch_name);
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else
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@ -848,8 +855,11 @@ int cmd_branch(int argc, const char **argv, const char *prefix)
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die(_("no such branch '%s'"), argv[0]);
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}
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if (!ref_exists(branch->refname))
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if (!ref_exists(branch->refname)) {
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if (!argc || !strcmp(head, branch->name))
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die(_("No commit on branch '%s' yet."), branch->name);
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die(_("branch '%s' does not exist"), branch->name);
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}
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dwim_and_setup_tracking(the_repository, branch->name,
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new_upstream, BRANCH_TRACK_OVERRIDE,
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@ -7,6 +7,28 @@ test_description='test show-branch'
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# arbitrary reference time: 2009-08-30 19:20:00
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GIT_TEST_DATE_NOW=1251660000; export GIT_TEST_DATE_NOW
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test_expect_success 'error descriptions on empty repository' '
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current=$(git branch --show-current) &&
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cat >expect <<-EOF &&
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error: No commit on branch '\''$current'\'' yet.
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EOF
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test_must_fail git branch --edit-description 2>actual &&
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test_cmp expect actual &&
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test_must_fail git branch --edit-description $current 2>actual &&
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test_cmp expect actual
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'
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test_expect_success 'fatal descriptions on empty repository' '
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current=$(git branch --show-current) &&
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cat >expect <<-EOF &&
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fatal: No commit on branch '\''$current'\'' yet.
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EOF
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test_must_fail git branch --set-upstream-to=non-existent 2>actual &&
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test_cmp expect actual &&
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test_must_fail git branch -c new-branch 2>actual &&
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test_cmp expect actual
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'
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test_expect_success 'setup' '
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test_commit initial &&
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for i in $(test_seq 1 10)
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@ -175,4 +197,28 @@ done <<\EOF
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--reflog --current
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EOF
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test_expect_success 'error descriptions on non-existent branch' '
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cat >expect <<-EOF &&
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error: No branch named '\''non-existent'\'.'
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EOF
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test_must_fail git branch --edit-description non-existent 2>actual &&
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test_cmp expect actual
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'
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test_expect_success 'fatal descriptions on non-existent branch' '
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cat >expect <<-EOF &&
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fatal: branch '\''non-existent'\'' does not exist
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EOF
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test_must_fail git branch --set-upstream-to=non-existent non-existent 2>actual &&
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test_cmp expect actual &&
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cat >expect <<-EOF &&
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fatal: No branch named '\''non-existent'\''.
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EOF
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test_must_fail git branch -c non-existent new-branch 2>actual &&
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test_cmp expect actual &&
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test_must_fail git branch -m non-existent new-branch 2>actual &&
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test_cmp expect actual
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'
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test_done
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