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cmd/--cache: avoid exception on missing HEAD #18422

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Sep 26, 2024
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cmd/--cache: avoid exception on missing HEAD #18422

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8 changes: 6 additions & 2 deletions Library/Homebrew/cmd/--cache.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -17,7 +17,7 @@ def self.command_name = "--cache"
description <<~EOS
Display Homebrew's download cache. See also `HOMEBREW_CACHE`.
If <formula> is provided, display the file or directory used to cache <formula>.
If a <formula> or <cask> is provided, display the file or directory used to cache it.
EOS
flag "--os=",
description: "Show cache file for the given operating system. " \
Expand Down Expand Up @@ -113,7 +113,11 @@ def print_formula_cache(formula, os:, arch:)

puts bottle.cached_download
elsif args.HEAD?
puts T.must(formula.head).cached_download
if (head = formula.head)
puts head.cached_download
else
opoo "No head is defined for #{formula.full_name}."
end
else
puts formula.cached_download
end
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4 changes: 2 additions & 2 deletions docs/Manpage.md
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Expand Up @@ -1494,8 +1494,8 @@ dependency for their stable builds.

Display Homebrew's download cache. See also `HOMEBREW_CACHE`.

If *`formula`* is provided, display the file or directory used to cache
*`formula`*.
If a *`formula`* or *`cask`* is provided, display the file or directory used to
cache it.

`--os`

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2 changes: 1 addition & 1 deletion manpages/brew.1
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Expand Up @@ -938,7 +938,7 @@ Include only casks\.
.SS "\fB\-\-cache\fP \fR[\fIoptions\fP] \fR[\fIformula\fP|\fIcask\fP \.\.\.]"
Display Homebrew\[u2019]s download cache\. See also \fBHOMEBREW_CACHE\fP\&\.
.P
If \fIformula\fP is provided, display the file or directory used to cache \fIformula\fP\&\.
If a \fIformula\fP or \fIcask\fP is provided, display the file or directory used to cache it\.
.TP
\fB\-\-os\fP
Show cache file for the given operating system\. (Pass \fBall\fP to show cache files for all operating systems\.)
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