Hash :
c4b95a0f
Author :
Thomas de Grivel
Date :
2021-12-13T14:44:49
write public access file
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defmodule Kmxgit.GitManager do
@git_root "priv/git"
def git_dir(repo) do
"#{@git_root}/#{repo}.git"
end
def branches(repo) do
dir = git_dir(repo)
{out, status} = System.cmd("git", ["-C", dir, "branch", "--list"], stderr_to_stdout: true)
case status do
0 ->
b = out
|> String.split("\n")
|> filter_branches()
|> Enum.reject(&(!&1 || &1 == ""))
{:ok, b}
_ -> {:error, out}
end
end
defp filter_branches(lines) do
filter_branches(lines, [], nil)
end
defp filter_branches([], acc, nil) do
Enum.reverse(acc)
end
defp filter_branches([], acc, main) do
[main | Enum.reverse(acc)]
end
defp filter_branches([line | rest], acc, main) do
case Regex.run(~r/^(\* )? *([^ ].*)$/, line) do
[_, "* ", branch] -> filter_branches(rest, acc, branch)
[_, _, branch] -> filter_branches(rest, [branch | acc], main)
_ -> filter_branches(rest, acc, main)
end
end
def content(repo, path) do
dir = git_dir(repo)
path = if path == "" do "." else path end
{out, status} = System.cmd("git", ["-C", dir, "cat-file", "blob", path], stderr_to_stdout: true)
case status do
0 -> {:ok, out}
_ -> {:error, out}
end
end
def files(repo, tree, path, parent \\ ".") do
dir = git_dir(repo)
path1 = if path == "" do "." else path end
{out, status} = System.cmd("git", ["-C", dir, "ls-tree", tree, path1], stderr_to_stdout: true)
case status do
0 ->
list = out
|> String.split("\n")
|> Enum.reject(&(&1 == ""))
|> Enum.map(fn line ->
[stat, name] = String.split(line, "\t")
[mode, type, sha1] = String.split(stat, " ")
url = "#{parent}/#{name}"
%{mode: mode, name: name, sha1: sha1, type: type, url: url}
end)
case list do
[%{name: ^path1, sha1: sha1, type: "tree"}] ->
files(repo, sha1, "", "#{parent}/#{path1}")
_ -> {:ok, list}
end
_ ->
if Regex.match?(~r(^fatal: Not a valid object name ), out) do
{:ok, []}
else
{:error, String.split(out, "\n")}
end
end
end
def update_auth do
{out, status} = System.cmd("update_etc_git_auth", [], stderr_to_stdout: true)
case status do
0 ->
{out, status} = System.cmd("update_git_ssh_authorized_keys", [], stderr_to_stdout: true)
case status do
0 -> :ok
_ -> {:error, out}
end
_ -> {:error, out}
end
end
def rename(from, to) do
dir_from = git_dir(from)
dir_to = git_dir(to)
if File.exists?(dir_to) do
{:error, "file exists"}
else
dir = Path.dirname(dir_to)
:ok = File.mkdir_p(dir)
{out, status} = System.cmd("mv", [dir_from, dir_to], stderr_to_stdout: true)
case status do
0 -> :ok
_ -> {:error, out}
end
end
end
def rename_dir(from, to) do
dir_from = "#{@git_root}/#{from}/"
dir_to = "#{@git_root}/#{to}/"
if File.exists?(dir_to) do
{:error, "file exists"}
else
{out, status} = System.cmd("mv", [dir_from, dir_to], stderr_to_stdout: true)
case status do
0 -> :ok
_ -> {:error, out}
end
end
end
def create(repo) do
dir = "#{@git_root}/#{Path.dirname(repo)}"
name = "#{Path.basename(repo)}.git"
:ok = File.mkdir_p(dir)
{out, status} = System.cmd("git", ["-C", dir, "init", "--bare", name], stderr_to_stdout: true)
case status do
0 -> {:ok, out}
_ -> {:error, out}
end
end
defp rm_rf(dir) do
case System.cmd("rm", ["-rf", dir], stderr_to_stdout: true) do
{"", 0} -> :ok
{err, _} -> {:error, err}
end
end
def delete(repo) do
repo |> git_dir() |> rm_rf()
end
def delete_dir(dir) do
"#{@git_root}/#{dir}/"
|> rm_rf()
end
def fork(from, to) do
dir_from = git_dir(from)
dir_to = git_dir(to)
if File.exists?(dir_to) do
{:error, "file exists"}
else
dir = Path.dirname(dir_to)
:ok = File.mkdir_p(dir)
{out, status} = System.cmd("cp", ["-PRp", dir_from, dir_to], stderr_to_stdout: true)
case status do
0 -> :ok
_ -> {:error, out}
end
end
end
def public_access(repo, true) do
dir = git_dir(repo)
if ! File.exists?(export = "#{dir}/git-daemon-export-ok") do
File.write!(export, "")
end
:ok
end
def public_access(repo, false) do
dir = git_dir(repo)
if File.exists?(export = "#{dir}/git-daemon-export-ok") do
File.rm!(export)
end
:ok
end
end