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completion: handle '!f() { ... }; f' and "!sh -c '...' -" aliases
'!f() { ... }; f' and "!sh -c '....' -" are recommended patterns for declaring more complex aliases (see git wiki [1]). This commit teaches the completion to handle them. When determining which completion to use for an alias, an opening brace or single quote is now skipped, and the search for a git command is continued. For example, the aliases '!f() { git commit ... }' or "!sh -c 'git commit ...'" now trigger commit completion. Previously, the search stopped on the opening brace or quote, and the completion tried it to determine how to complete, which obviously was useless. The null command ':' is now skipped, so that it can be used as a workaround to declare the desired completion style. For example, the aliases !f() { : git commit ; if ... } f !sh -c ': git commit; if ...' - now trigger commit completion. Shell function declarations now work with or without space before the parens, i.e. '!f() ...' and '!f () ...' both work. [1] https://git.wiki.kernel.org/index.php/Aliases Signed-off-by: Steffen Prohaska <prohaska@zib.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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@ -21,6 +21,12 @@
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# source ~/.git-completion.sh
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# 3) Consider changing your PS1 to also show the current branch,
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# see git-prompt.sh for details.
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#
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# If you use complex aliases of form '!f() { ... }; f', you can use the null
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# command ':' as the first command in the function body to declare the desired
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# completion style. For example '!f() { : git commit ; ... }; f' will
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# tell the completion to use commit completion. This also works with aliases
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# of form "!sh -c '...'". For example, "!sh -c ': git commit ; ... '".
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case "$COMP_WORDBREAKS" in
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*:*) : great ;;
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@ -781,6 +787,10 @@ __git_aliased_command ()
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-*) : option ;;
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*=*) : setting env ;;
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git) : git itself ;;
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\(\)) : skip parens of shell function definition ;;
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{) : skip start of shell helper function ;;
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:) : skip null command ;;
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\'*) : skip opening quote after sh -c ;;
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*)
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echo "$word"
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return
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@ -550,6 +550,33 @@ test_expect_success 'complete files' '
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test_completion "git add mom" "momified"
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'
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test_expect_success "completion uses <cmd> completion for alias: !sh -c 'git <cmd> ...'" '
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test_config alias.co "!sh -c '"'"'git checkout ...'"'"'" &&
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test_completion "git co m" <<-\EOF
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master Z
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mybranch Z
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mytag Z
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EOF
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'
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test_expect_success 'completion uses <cmd> completion for alias: !f () { VAR=val git <cmd> ... }' '
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test_config alias.co "!f () { VAR=val git checkout ... ; } f" &&
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test_completion "git co m" <<-\EOF
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master Z
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mybranch Z
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mytag Z
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EOF
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'
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test_expect_success 'completion used <cmd> completion for alias: !f() { : git <cmd> ; ... }' '
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test_config alias.co "!f() { : git checkout ; if ... } f" &&
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test_completion "git co m" <<-\EOF
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master Z
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mybranch Z
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mytag Z
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EOF
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'
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test_expect_failure 'complete with tilde expansion' '
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git init tmp && cd tmp &&
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test_when_finished "cd .. && rm -rf tmp" &&
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