ferdnyc created an issue (rpm-software-management/rpm#3661)
**Describe the bug**
When viewing the Lua scripting attached to glibc-common on Fedora, the
displayed Lua code is lacking all of its backslash escapes, with every `\n`
being displayed as simply `n`.
**To Reproduce**
Steps to reproduce the behavior:
1. On a Fedora 41 system, with the distro's `rpm-4.20.0-1.fc41.x86_64` and
`glibc-common-2.40-23.fc41.x86_64` installed...
2. Run `rpm -q --filetriggers glibc-common`
3. The displayed script contains lines like,
```lua
io.stdout:write ("Error: Missing " .. iconv_cache .. " file.n")
```
which in the source `glibc.spec` file is:
```lua
io.stdout:write ("Error: Missing " .. iconv_cache .. " file.\n")
```
`glibc.spec`: https://src.fedoraproject.org/rpms/glibc/raw/rawhide/f/glibc.spec
**Expected behavior**
The script displayed with all code elements -- including backslashes --
visible.
**Output**
```bash
$ rpm -q --filetriggers glibc-common
transfiletriggerin scriptlet (using <lua>) -- /lib, /lib64, /usr/lib, /usr/lib64
-- We use lua because there may be no shell that we can run during
-- glibc upgrade. We used to implement much of %post as a C program,
-- but from an overall maintenance perspective the lua in the spec
-- file was simpler and safer given the operations required.
-- All lua code will be ignored by rpm-ostree; see:
-- https://github.com/projectatomic/rpm-ostree/pull/1869
-- If we add new lua actions to the %post code we should coordinate
-- with rpm-ostree and ensure that their glibc install is functional.
-- We must not use rpm.execute because this is a RPM 4.15 features and
-- we must still support downstream bootstrap with RPM 4.14 and missing
-- containerized boostrap.
-- Open-code rpm.execute with error message handling.
function post_exec (msg, program, ...)
if rpm.spawn ~= nil then
local status = rpm.spawn ({program, ...})
if status == nil then
io.stdout:write (msg)
assert (nil)
end
else
local pid = posix.fork ()
if pid == 0 then
posix.exec (program, ...)
io.stdout:write (msg)
assert (nil)
elseif pid > 0 then
posix.wait (pid)
end
end
end
function call_ldconfig ()
post_exec("Error: call to ldconfig failed.n",
"ldconfig")
end
function update_gconv_modules_cache ()
local iconv_dir = "/usr/lib64/gconv"
local iconv_cache = iconv_dir .. "/gconv-modules.cache"
local iconv_modules = iconv_dir .. "/gconv-modules"
if posix.utime(iconv_modules) == 0 then
if posix.utime (iconv_cache) == 0 then
post_exec ("Error: call to /usr/sbin/iconvconfig failed.n",
"/usr/sbin/iconvconfig",
"-o", iconv_cache,
"--nostdlib",
iconv_dir)
else
io.stdout:write ("Error: Missing " .. iconv_cache .. " file.n")
end
end
end
call_ldconfig()
transfiletriggerpostun scriptlet (using <lua>) -- /lib, /lib64, /usr/lib,
/usr/lib64
-- We use lua because there may be no shell that we can run during
-- glibc upgrade. We used to implement much of %post as a C program,
-- but from an overall maintenance perspective the lua in the spec
-- file was simpler and safer given the operations required.
-- All lua code will be ignored by rpm-ostree; see:
-- https://github.com/projectatomic/rpm-ostree/pull/1869
-- If we add new lua actions to the %post code we should coordinate
-- with rpm-ostree and ensure that their glibc install is functional.
-- We must not use rpm.execute because this is a RPM 4.15 features and
-- we must still support downstream bootstrap with RPM 4.14 and missing
-- containerized boostrap.
-- Open-code rpm.execute with error message handling.
function post_exec (msg, program, ...)
if rpm.spawn ~= nil then
local status = rpm.spawn ({program, ...})
if status == nil then
io.stdout:write (msg)
assert (nil)
end
else
local pid = posix.fork ()
if pid == 0 then
posix.exec (program, ...)
io.stdout:write (msg)
assert (nil)
elseif pid > 0 then
posix.wait (pid)
end
end
end
function call_ldconfig ()
post_exec("Error: call to ldconfig failed.n",
"ldconfig")
end
function update_gconv_modules_cache ()
local iconv_dir = "/usr/lib64/gconv"
local iconv_cache = iconv_dir .. "/gconv-modules.cache"
local iconv_modules = iconv_dir .. "/gconv-modules"
if posix.utime(iconv_modules) == 0 then
if posix.utime (iconv_cache) == 0 then
post_exec ("Error: call to /usr/sbin/iconvconfig failed.n",
"/usr/sbin/iconvconfig",
"-o", iconv_cache,
"--nostdlib",
iconv_dir)
else
io.stdout:write ("Error: Missing " .. iconv_cache .. " file.n")
end
end
end
call_ldconfig()
```
**Environment**
- OS / Distribution: Fedora 41
- Version: rpm-4.20.0-1.fc41.x85_64
--
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