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- 3 commits
- 3 files changed
- 1 contributor
Commits on Oct 11, 2018
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help: redirect to aliased commands for "git cmd --help"
As discussed in the thread for v1 of this patch [1] [2], this changes the rules for "git foo --help" when foo is an alias. (1) When invoked as "git help foo", we continue to print the "foo is aliased to bar" message and nothing else. (2) If foo is an alias for a shell command, print "foo is aliased to !bar" as usual. (3) Otherwise, print "foo is aliased to bar" to the standard error stream, and then break the alias string into words and pretend as if "git word[0] --help" were called. Getting the man page for git-cherry-pick directly with "git cp --help" is consistent with "--help" generally providing more comprehensive help than "-h". Printing the alias definition to stderr means that in certain cases (e.g. if help.format=web or if the pager uses an alternate screen and does not clear the terminal), one has 'cp' is aliased to 'cherry-pick -n' above the prompt when one returns to the terminal/quits the pager, which is a useful reminder that using 'cp' has some flag implicitly set. There are cases where this information vanishes or gets scrolled away, but being printed to stderr, it should never hurt. [1] https://public-inbox.org/git/20180926102636.30691-1-rv@rasmusvillemoes.dk/ [2] https://public-inbox.org/git/20180926184914.GC30680@sigill.intra.peff.net/ Signed-off-by: Rasmus Villemoes <rv@rasmusvillemoes.dk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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git.c: handle_alias: prepend alias info when first argument is -h
Most git commands respond to -h anywhere in the command line, or at least as a first and lone argument, by printing the usage information. For aliases, we can provide a little more information that might be useful in interpreting/understanding the following output by prepending a line telling that the command is an alias, and for what. When one invokes a simple alias, such as "cp = cherry-pick" with -h, this results in $ git cp -h 'cp' is aliased to 'cherry-pick' usage: git cherry-pick [<options>] <commit-ish>... ... When the alias consists of more than one word, this provides the additional benefit of informing the user which options are implicit in using the alias, e.g. with "cp = cherry-pick -n": $ git cp -h 'cp' is aliased to 'cherry-pick -n' usage: git cherry-pick [<options>] <commit-ish>... ... For shell commands, we cannot know how it responds to -h, but printing this line to stderr should not hurt, and can help in figuring out what is happening in a case like $ git sc -h 'sc' is aliased to '!somecommand' somecommand: invalid option '-h' Suggested-by: Jeff King <peff@peff.net> Signed-off-by: Rasmus Villemoes <rv@rasmusvillemoes.dk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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git-help.txt: document "git help cmd" vs "git cmd --help" for aliases
This documents the existing behaviour of "git help cmd" when cmd is an alias, as well as providing a hint to use the "git cmd --help" form to be taken directly to the man page for the aliased command. Signed-off-by: Rasmus Villemoes <rv@rasmusvillemoes.dk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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