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Honor GIT env var

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commit add682df723f50d68f43b3ae0a12c0c7985945eb 1 parent 3338fbe
@adamv adamv authored
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9 Library/Contributions/manpages/brew.1.md
@@ -369,6 +369,15 @@ can take several different forms:
## ENVIRONMENT
+ * GIT:
+ When using Git, Homebrew will use `GIT` if set,
+ a Homebrew-built Git if installed, or the system-provided binary.
+
+ Set this to force Homebrew to use a particular git binary.
+
+ * EDITOR:
+ If set, and `HOMEBREW_EDITOR` is not, use `EDITOR` as the text editor.
+
* HOMEBREW\_BUILD\_FROM\_SOURCE:
If set, instructs Homebrew to compile from source even when a formula
provides a bottle.
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34 Library/Homebrew/download_strategy.rb
@@ -315,6 +315,7 @@ def fetch_repo target, url, revision=nil, ignore_externals=false
class GitDownloadStrategy < AbstractDownloadStrategy
def initialize name, package
super
+ @@git ||= find_git
@unique_token="#{name}--git" unless name.to_s.empty? or name == '__UNKNOWN__'
@clone=HOMEBREW_CACHE+@unique_token
end
@@ -339,7 +340,7 @@ def fetch
if @clone.exist?
Dir.chdir(@clone) do
# Check for interupted clone from a previous install
- unless system 'git', 'status', '-s'
+ unless system @@git, 'status', '-s'
puts "Removing invalid .git repo from cache"
FileUtils.rm_rf @clone
end
@@ -348,7 +349,7 @@ def fetch
unless @clone.exist?
# Note: first-time checkouts are always done verbosely
- clone_args = %w[git clone]
+ clone_args = [@@git, 'clone']
clone_args << '--depth' << '1' if support_depth?
case @spec
@@ -361,15 +362,15 @@ def fetch
else
puts "Updating #{@clone}"
Dir.chdir(@clone) do
- safe_system 'git', 'config', 'remote.origin.url', @url
+ safe_system @@git, 'config', 'remote.origin.url', @url
- safe_system 'git', 'config', 'remote.origin.fetch', case @spec
+ safe_system @@git, 'config', 'remote.origin.fetch', case @spec
when :branch then "+refs/heads/#{@ref}:refs/remotes/origin/#{@ref}"
when :tag then "+refs/tags/#{@ref}:refs/tags/#{@ref}"
else '+refs/heads/master:refs/remotes/origin/master'
end
- git_args = %w[git fetch origin]
+ git_args = [@@git, 'fetch', 'origin']
quiet_safe_system(*git_args)
end
end
@@ -382,27 +383,34 @@ def stage
ohai "Checking out #{@spec} #{@ref}"
case @spec
when :branch
- nostdout { quiet_safe_system 'git', 'checkout', "origin/#{@ref}", '--' }
+ nostdout { quiet_safe_system @@git, 'checkout', "origin/#{@ref}", '--' }
when :tag, :revision
- nostdout { quiet_safe_system 'git', 'checkout', @ref, '--' }
+ nostdout { quiet_safe_system @@git, 'checkout', @ref, '--' }
end
else
# otherwise the checkout-index won't checkout HEAD
# https://github.com/mxcl/homebrew/issues/7124
# must specify origin/HEAD, otherwise it resets to the current local HEAD
- quiet_safe_system "git", "reset", "--hard", "origin/HEAD"
+ quiet_safe_system @@git, "reset", "--hard", "origin/HEAD"
end
# http://stackoverflow.com/questions/160608/how-to-do-a-git-export-like-svn-export
- safe_system 'git', 'checkout-index', '-a', '-f', "--prefix=#{dst}/"
+ safe_system @@git, 'checkout-index', '-a', '-f', "--prefix=#{dst}/"
# check for submodules
if File.exist?('.gitmodules')
- safe_system 'git', 'submodule', 'init'
- safe_system 'git', 'submodule', 'update'
- sub_cmd = "git checkout-index -a -f \"--prefix=#{dst}/$path/\""
- safe_system 'git', 'submodule', '--quiet', 'foreach', '--recursive', sub_cmd
+ safe_system @@git, 'submodule', 'init'
+ safe_system @@git, 'submodule', 'update'
+ sub_cmd = "#{@@git} checkout-index -a -f \"--prefix=#{dst}/$path/\""
+ safe_system @@git, 'submodule', '--quiet', 'foreach', '--recursive', sub_cmd
end
end
end
+
+ # Try GIT, a Homebrew-built Git, and finally the OS X system Git.
+ def find_git
+ return ENV['GIT'] if ENV['GIT']
+ return "#{HOMEBREW_PREFIX}/bin/git" if File.exist? "#{HOMEBREW_PREFIX}/bin/git"
+ return MacOS.locate 'git'
+ end
end
class CVSDownloadStrategy < AbstractDownloadStrategy
View
11 share/man/man1/brew.1
@@ -409,6 +409,17 @@ Homebrew can install formulae via URL, e\.g\. \fBhttps://raw\.github\.com/mxcl/h
.SH "ENVIRONMENT"
.
.TP
+GIT
+When using Git, Homebrew will use \fBGIT\fR if set, a Homebrew\-built Git if installed, or the system\-provided binary\.
+.
+.IP
+Set this to force Homebrew to use a particular git binary\.
+.
+.TP
+EDITOR
+If set, and \fBHOMEBREW_EDITOR\fR is not, use \fBEDITOR\fR as the text editor\.
+.
+.TP
HOMEBREW_BUILD_FROM_SOURCE
If set, instructs Homebrew to compile from source even when a formula provides a bottle\.
.
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