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checkout: describe_detached_head: remove ellipsis after committish
We do not want an ellipsis displayed following an (abbreviated) SHA-1 value. The days when this was necessary to indicate the truncation to lower-level Git commands and/or the user are bygone. However, to ease the transition, the ellipsis will still be printed if the user sets the environment variable GIT_PRINT_SHA1_ELLIPSIS to "yes". Correct documentation with respect to what describe_detached_head prints when GIT_PRINT_SHA1_ELLIPSIS is not set as indicated above. Add tests for the old and new behaviour. Signed-off-by: Ann T Ropea <bedhanger@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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@ -319,7 +319,7 @@ do so (now or later) by using -b with the checkout command again. Example:
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git checkout -b new_branch_name
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HEAD is now at 427abfa... Linux v2.6.17
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HEAD is now at 427abfa Linux v2.6.17
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------------------------------------------------
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The HEAD then refers to the SHA-1 of the commit instead of to a branch,
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@ -400,10 +400,16 @@ static void show_local_changes(struct object *head,
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static void describe_detached_head(const char *msg, struct commit *commit)
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{
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struct strbuf sb = STRBUF_INIT;
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if (!parse_commit(commit))
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pp_commit_easy(CMIT_FMT_ONELINE, commit, &sb);
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fprintf(stderr, "%s %s... %s\n", msg,
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find_unique_abbrev(commit->object.oid.hash, DEFAULT_ABBREV), sb.buf);
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if (print_sha1_ellipsis()) {
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fprintf(stderr, "%s %s... %s\n", msg,
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find_unique_abbrev(commit->object.oid.hash, DEFAULT_ABBREV), sb.buf);
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} else {
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fprintf(stderr, "%s %s %s\n", msg,
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find_unique_abbrev(commit->object.oid.hash, DEFAULT_ABBREV), sb.buf);
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}
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strbuf_release(&sb);
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}
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@ -186,4 +186,127 @@ test_expect_success 'no advice given for explicit detached head state' '
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test_cmp expect.no-advice actual
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'
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# Detached HEAD tests for GIT_PRINT_SHA1_ELLIPSIS (new format)
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test_expect_success 'describe_detached_head prints no SHA-1 ellipsis when not asked to' "
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# The first detach operation is more chatty than the following ones.
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cat >1st_detach <<-'EOF' &&
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Note: checking out 'HEAD^'.
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You are in 'detached HEAD' state. You can look around, make experimental
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changes and commit them, and you can discard any commits you make in this
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state without impacting any branches by performing another checkout.
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If you want to create a new branch to retain commits you create, you may
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do so (now or later) by using -b with the checkout command again. Example:
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git checkout -b <new-branch-name>
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HEAD is now at 7c7cd714e262 three
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EOF
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# The remaining ones just show info about previous and current HEADs.
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cat >2nd_detach <<-'EOF' &&
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Previous HEAD position was 7c7cd714e262 three
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HEAD is now at 139b20d8e6c5 two
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EOF
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cat >3rd_detach <<-'EOF' &&
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Previous HEAD position was 139b20d8e6c5 two
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HEAD is now at d79ce1670bdc one
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EOF
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reset &&
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check_not_detached &&
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# Various ways of *not* asking for ellipses
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sane_unset GIT_PRINT_SHA1_ELLIPSIS &&
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git -c 'core.abbrev=12' checkout HEAD^ >actual 2>&1 &&
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check_detached &&
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test_i18ncmp 1st_detach actual &&
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GIT_PRINT_SHA1_ELLIPSIS="no" git -c 'core.abbrev=12' checkout HEAD^ >actual 2>&1 &&
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check_detached &&
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test_i18ncmp 2nd_detach actual &&
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GIT_PRINT_SHA1_ELLIPSIS= git -c 'core.abbrev=12' checkout HEAD^ >actual 2>&1 &&
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check_detached &&
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test_i18ncmp 3rd_detach actual &&
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sane_unset GIT_PRINT_SHA1_ELLIPSIS &&
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# We only have four commits, but we can re-use them
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reset &&
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check_not_detached &&
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# Make no mention of the env var at all
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git -c 'core.abbrev=12' checkout HEAD^ >actual 2>&1 &&
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check_detached &&
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test_i18ncmp 1st_detach actual &&
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GIT_PRINT_SHA1_ELLIPSIS='nope' &&
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git -c 'core.abbrev=12' checkout HEAD^ >actual 2>&1 &&
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check_detached &&
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test_i18ncmp 2nd_detach actual &&
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GIT_PRINT_SHA1_ELLIPSIS=nein &&
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git -c 'core.abbrev=12' checkout HEAD^ >actual 2>&1 &&
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check_detached &&
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test_i18ncmp 3rd_detach actual &&
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true
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"
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# Detached HEAD tests for GIT_PRINT_SHA1_ELLIPSIS (old format)
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test_expect_success 'describe_detached_head does print SHA-1 ellipsis when asked to' "
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# The first detach operation is more chatty than the following ones.
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cat >1st_detach <<-'EOF' &&
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Note: checking out 'HEAD^'.
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You are in 'detached HEAD' state. You can look around, make experimental
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changes and commit them, and you can discard any commits you make in this
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state without impacting any branches by performing another checkout.
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If you want to create a new branch to retain commits you create, you may
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do so (now or later) by using -b with the checkout command again. Example:
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git checkout -b <new-branch-name>
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HEAD is now at 7c7cd714e262... three
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EOF
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# The remaining ones just show info about previous and current HEADs.
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cat >2nd_detach <<-'EOF' &&
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Previous HEAD position was 7c7cd714e262... three
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HEAD is now at 139b20d8e6c5... two
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EOF
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cat >3rd_detach <<-'EOF' &&
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Previous HEAD position was 139b20d8e6c5... two
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HEAD is now at d79ce1670bdc... one
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EOF
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reset &&
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check_not_detached &&
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# Various ways of asking for ellipses...
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# The user can just use any kind of quoting (including none).
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GIT_PRINT_SHA1_ELLIPSIS="yes" git -c 'core.abbrev=12' checkout HEAD^ >actual 2>&1 &&
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check_detached &&
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test_i18ncmp 1st_detach actual &&
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GIT_PRINT_SHA1_ELLIPSIS='yes' git -c 'core.abbrev=12' checkout HEAD^ >actual 2>&1 &&
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check_detached &&
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test_i18ncmp 2nd_detach actual &&
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GIT_PRINT_SHA1_ELLIPSIS=yes git -c 'core.abbrev=12' checkout HEAD^ >actual 2>&1 &&
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check_detached &&
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test_i18ncmp 3rd_detach actual &&
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true
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"
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test_done
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