66 lines
1.8 KiB
Ruby
66 lines
1.8 KiB
Ruby
require 'zlib'
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class BareRepoOperations
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# The ID of empty tree.
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# See http://stackoverflow.com/a/40884093/1856239 and https://github.com/git/git/blob/3ad8b5bf26362ac67c9020bf8c30eee54a84f56d/cache.h#L1011-L1012
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EMPTY_TREE_ID = '4b825dc642cb6eb9a060e54bf8d69288fbee4904'.freeze
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include Gitlab::Popen
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def initialize(path_to_repo)
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@path_to_repo = path_to_repo
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end
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def commit_tree(tree_id, msg, parent: EMPTY_TREE_ID)
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commit_tree_args = ['commit-tree', tree_id, '-m', msg]
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commit_tree_args += ['-p', parent] unless parent == EMPTY_TREE_ID
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commit_id = execute(commit_tree_args)
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commit_id[0]
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end
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# Based on https://stackoverflow.com/a/25556917/1856239
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def commit_file(file, dst_path, branch = 'master')
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head_id = execute(['show', '--format=format:%H', '--no-patch', branch], allow_failure: true)[0] || EMPTY_TREE_ID
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execute(['read-tree', '--empty'])
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execute(['read-tree', head_id])
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blob_id = execute(['hash-object', '--stdin', '-w']) do |stdin|
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stdin.write(file.read)
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end
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execute(['update-index', '--add', '--cacheinfo', '100644', blob_id[0], dst_path])
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tree_id = execute(['write-tree'])
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commit_id = commit_tree(tree_id[0], "Add #{dst_path}", parent: head_id)
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execute(['update-ref', "refs/heads/#{branch}", commit_id])
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end
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private
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def execute(args, allow_failure: false)
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output, status = popen(base_args + args, nil) do |stdin|
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yield stdin if block_given?
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end
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unless status.zero?
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if allow_failure
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return []
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else
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raise "Got a non-zero exit code while calling out `#{args.join(' ')}`: #{output}"
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end
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end
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output.split("\n")
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end
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def base_args
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[
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Gitlab.config.git.bin_path,
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"--git-dir=#{@path_to_repo}"
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]
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end
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end
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