5 files changed, 41 insertions, 24 deletions

diff --git a/src/luarocks/build/cmake.lua b/src/luarocks/build/cmake.lua
index 82f4ff58..f1737876 100644
--- a/src/luarocks/build/cmake.lua
+++ b/src/luarocks/build/cmake.lua
@@ -22,7 +22,7 @@ function run(rockspec)
 
    util.variable_substitutions(variables, rockspec.variables)
 
-   if not fs.execute_string(fs.quiet(rockspec.variables.CMAKE.." --help")) then
+   if not fs.execute_quiet(rockspec.variables.CMAKE, "--help")) then
       return nil, "'"..rockspec.variables.CMAKE.."' program not found. Is cmake installed? You may want to edit variables.CMAKE"
    end
    
diff --git a/src/luarocks/fs/lua.lua b/src/luarocks/fs/lua.lua
index f50ecf75..32aac6d6 100644
--- a/src/luarocks/fs/lua.lua
+++ b/src/luarocks/fs/lua.lua
@@ -83,6 +83,15 @@ function make_temp_dir(name)
    end
 end
 
+local function quote_args(command, ...)
+   local out = { command }
+   for _, arg in ipairs({...}) do
+      assert(type(arg) == "string")
+      out[#out+1] = fs.Q(arg)
+   end
+   return table.concat(out, " ")
+end
+
 --- Run the given command, quoting its arguments.
 -- The command is executed in the current directory in the dir stack.
 -- @param command string: The command to be executed. No quoting/escaping
@@ -92,12 +101,19 @@ end
 -- otherwise.
 function execute(command, ...)
    assert(type(command) == "string")
+   return fs.execute_string(quote_args(command, ...))
+end
 
-   for _, arg in ipairs({...}) do
-      assert(type(arg) == "string")
-      command = command .. " " .. fs.Q(arg)
-   end
-   return fs.execute_string(command)
+--- Run the given command, quoting its arguments, silencing its output.
+-- The command is executed in the current directory in the dir stack.
+-- @param command string: The command to be executed. No quoting/escaping
+-- is applied.
+-- @param ... Strings containing additional arguments, which are quoted.
+-- @return boolean: true if command succeeds (status code 0), false
+-- otherwise.
+function execute_quiet(command, ...)
+   assert(type(command) == "string")
+   return fs.execute_string(fs.quiet(quote_args(command, ...)))
 end
 
 --- Check the MD5 checksum for a file.
@@ -482,6 +498,7 @@ if socket_ok then
 
 local ltn12 = require("ltn12")
 local luasec_ok, https = pcall(require, "ssl.https")
+
 local redirect_protocols = {
    http = http,
    https = luasec_ok and https,
diff --git a/src/luarocks/fs/unix/tools.lua b/src/luarocks/fs/unix/tools.lua
index 9e4acf73..1b2931e9 100644
--- a/src/luarocks/fs/unix/tools.lua
+++ b/src/luarocks/fs/unix/tools.lua
@@ -88,7 +88,7 @@ end
 -- @param directory string: pathname of directory to remove.
 function remove_dir_if_empty(directory)
    assert(directory)
-   fs.execute_string(fs.quiet(vars.RMDIR.." "..fs.Q(directory)))
+   fs.execute_quiet(vars.RMDIR, directory)
 end
 
 --- Remove a directory if it is empty.
@@ -97,7 +97,7 @@ end
 -- @param directory string: pathname of directory to remove.
 function remove_dir_tree_if_empty(directory)
    assert(directory)
-   fs.execute_string(fs.quiet(vars.RMDIR.." -p "..fs.Q(directory)))
+   fs.execute_quiet(vars.RMDIR, "-p", directory)
 end
 
 --- Copy a file.
@@ -132,7 +132,7 @@ end
 -- plus an error message.
 function copy_contents(src, dest)
    assert(src and dest)
-   if fs.execute_string(fs.quiet(vars.CP.." -pPR "..fs.Q(src).."/* "..fs.Q(dest))) then
+   if fs.execute_quiet(vars.CP.." -pPR "..fs.Q(src).."/* "..fs.Q(dest)) then
       return true
    else
       return false, "Failed copying "..src.." to "..dest
@@ -145,7 +145,7 @@ end
 function delete(arg)
    assert(arg)
    assert(arg:sub(1,1) == "/")
-   return fs.execute_string(fs.quiet(vars.RM.." -rf " .. fs.Q(arg)))
+   return fs.execute_quiet(vars.RM, "-rf", arg)
 end
 
 --- List the contents of a directory.
@@ -206,7 +206,7 @@ end
 -- @return boolean: true on success, false on failure.
 function unzip(zipfile)
    assert(zipfile)
-   return fs.execute_string(fs.quiet(vars.UNZIP.." "..fs.Q(zipfile)))
+   return fs.execute_quiet(vars.UNZIP, zipfile)
 end
 
 --- Test is file/directory exists
diff --git a/src/luarocks/fs/win32/tools.lua b/src/luarocks/fs/win32/tools.lua
index f60b8f5b..b8f9bd36 100644
--- a/src/luarocks/fs/win32/tools.lua
+++ b/src/luarocks/fs/win32/tools.lua
@@ -108,7 +108,7 @@ end
 function make_dir(directory)
    assert(directory)
    directory = dir.normalize(directory)
-   fs.execute(fs.quiet(vars.MKDIR.." -p "..fs.Q(directory)))
+   fs.execute_quiet(vars.MKDIR.." -p ", directory)
    if not fs.is_dir(directory) then
       return false, "failed making directory "..directory
    end
@@ -121,7 +121,7 @@ end
 -- @param directory string: pathname of directory to remove.
 function remove_dir_if_empty(directory)
    assert(directory)
-   fs.execute_string(fs.quiet(vars.RMDIR.." "..fs.Q(directory)))
+   fs.execute_quiet(vars.RMDIR, directory)
 end
 
 --- Remove a directory if it is empty.
@@ -130,7 +130,7 @@ end
 -- @param directory string: pathname of directory to remove.
 function remove_dir_tree_if_empty(directory)
    assert(directory)
-   fs.execute_string(fs.quiet(vars.RMDIR.." "..fs.Q(directory)))
+   fs.execute_quiet(vars.RMDIR, directory)
 end
 
 --- Copy a file.
@@ -155,7 +155,7 @@ end
 -- plus an error message.
 function copy_contents(src, dest)
    assert(src and dest)
-   if fs.execute_string(fs.quiet(vars.CP.." -dR "..src.."\\*.* "..fs.Q(dest))) then
+   if fs.execute_quiet(vars.CP.." -dR "..src.."\\*.* "..fs.Q(dest)) then
       return true
    else
       return false, "Failed copying "..src.." to "..dest
@@ -170,7 +170,7 @@ function delete(arg)
    assert(arg)
    assert(arg:match("^[\a-zA-Z]?:?[\\/]"))
    fs.execute(vars.CHMOD.." a+rw -R ", arg)
-   return fs.execute_string(fs.quiet(vars.RM.." -rf " .. fs.Q(arg)))
+   return fs.execute_quiet(vars.RM.." -rf ", arg)
 end
 
 --- List the contents of a directory.
@@ -245,7 +245,7 @@ end
 -- @return boolean: true if it is a directory, false otherwise.
 function is_dir(file)
    assert(file)
-   return fs.execute(fs.quiet(vars.TEST.." -d " .. fs.Q(file)))
+   return fs.execute_quiet(vars.TEST.." -d ", file)
 end
 
 --- Test is pathname is a regular file.
@@ -301,20 +301,20 @@ function unpack_archive(archive)
    if archive:match("%.tar%.gz$") then
       ok = gunzip(archive)
       if ok then
-         ok = fs.execute(sevenzx, strip_extension(archive))
+         ok = fs.execute_quiet(sevenzx, strip_extension(archive))
       end
    elseif archive:match("%.tgz$") then
       ok = gunzip(archive)
       if ok then
-         ok = fs.execute(sevenzx, strip_extension(archive)..".tar")
+         ok = fs.execute_quiet(sevenzx, strip_extension(archive)..".tar")
       end
    elseif archive:match("%.tar%.bz2$") then
-      ok = fs.execute(sevenzx, archive)
+      ok = fs.execute_quiet(sevenzx, archive)
       if ok then
-         ok = fs.execute(sevenzx, strip_extension(archive))
+         ok = fs.execute_quiet(sevenzx, strip_extension(archive))
       end
    elseif archive:match("%.zip$") then
-      ok = fs.execute(sevenzx, archive)
+      ok = fs.execute_quiet(sevenzx, archive)
    elseif archive:match("%.lua$") or archive:match("%.c$") then
       -- Ignore .lua and .c files; they don't need to be extracted.
       return true
@@ -352,5 +352,5 @@ end
 -- @return boolean: true if file exists, false otherwise.
 function exists(file)
    assert(file)
-   return fs.execute(fs.quiet("if not exist " .. fs.Q(file) .. " invalidcommandname"))
+   return fs.execute_quiet("if not exist " .. fs.Q(file) .. " invalidcommandname")
 end
diff --git a/src/luarocks/persist.lua b/src/luarocks/persist.lua
index 376a242a..5b92f9cb 100644
--- a/src/luarocks/persist.lua
+++ b/src/luarocks/persist.lua
@@ -170,4 +170,4 @@ function save_from_table(filename, tbl, field_order)
    write_table(out, tbl, field_order)
    out:close()
    return true
-end
+end
\ No newline at end of file