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prompt: fix missing file errors in zsh
zsh seems to have a bug while redirecting the stderr of the 'read' command: % read foo 2>/dev/null <foo zsh: no such file or directory: foo Which causes errors to be displayed when certain files are missing. Let's add a convenience function to manually check if the file is readable before calling "read". Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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@ -259,6 +259,13 @@ __git_ps1_colorize_gitstring ()
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r="$c_clear$r"
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}
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eread ()
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{
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f="$1"
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shift
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test -r "$f" && read "$@" <"$f"
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}
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# __git_ps1 accepts 0 or 1 arguments (i.e., format string)
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# when called from PS1 using command substitution
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# in this mode it prints text to add to bash PS1 prompt (includes branch name)
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@ -321,9 +328,9 @@ __git_ps1 ()
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local step=""
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local total=""
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if [ -d "$g/rebase-merge" ]; then
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read b 2>/dev/null <"$g/rebase-merge/head-name"
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read step 2>/dev/null <"$g/rebase-merge/msgnum"
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read total 2>/dev/null <"$g/rebase-merge/end"
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eread "$g/rebase-merge/head-name" b
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eread "$g/rebase-merge/msgnum" step
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eread "$g/rebase-merge/end" total
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if [ -f "$g/rebase-merge/interactive" ]; then
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r="|REBASE-i"
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else
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@ -331,10 +338,10 @@ __git_ps1 ()
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fi
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else
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if [ -d "$g/rebase-apply" ]; then
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read step 2>/dev/null <"$g/rebase-apply/next"
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read total 2>/dev/null <"$g/rebase-apply/last"
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eread "$g/rebase-apply/next" step
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eread "$g/rebase-apply/last" total
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if [ -f "$g/rebase-apply/rebasing" ]; then
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read b 2>/dev/null <"$g/rebase-apply/head-name"
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eread "$g/rebase-apply/head-name" b
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r="|REBASE"
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elif [ -f "$g/rebase-apply/applying" ]; then
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r="|AM"
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@ -358,7 +365,7 @@ __git_ps1 ()
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b="$(git symbolic-ref HEAD 2>/dev/null)"
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else
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local head=""
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if ! read head 2>/dev/null <"$g/HEAD"; then
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if ! eread "$g/HEAD" head; then
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if [ $pcmode = yes ]; then
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PS1="$ps1pc_start$ps1pc_end"
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fi
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