/usr/local linker

Description

Package's executables and library files should be installed to /usr/local. This worker link / unlink files to /usr/local/{bin,lib,etc} during package start / stop.

• Acquire(): Create symbolic links under /usr/local/{bin,lib,etc}/ that points to files in /var/packages/${package}/target/.
  • Files not found under /var/packages/${package}/target/ will be ignored.
  • If the target file already exists in /usr/local/{bin,lib,etc}, it will be unlink() first.
  • Failure on any file link results in this worker to abort and triggers rollback.
• Release(): Delete the links under /usr/local/{bin,lib,etc}/.
  • Ignore files that are not found.
  • Ignore unlink() failure.

Provider

DSM

Timing

FROM_ENABLE_TO_DISABLE

Environment Variables

None

Updatable

No

Syntax

"usr-local-linker": {
  "bin" ["<relpath>", ...],
  "lib" ["<relpath>", ...],
  "etc" ["<relpath>", ...]
}

Example

"usr-local-linker": {
  "bin": ["usr/bin/a2p", "usr/bin/perl"],
  "lib": ["lib/perl5"]
}

The above specifications generates the following symbolic links for the Perl package:

root@DS $ ls -l /usr/local/{bin,lib,etc}
/usr/local/bin/:
total 0
lrwxrwxrwx 1 root root   30 Aug 13 06:32 a2p -> /var/packages/Perl/target/usr/bin/a2p
lrwxrwxrwx 1 root root   31 Aug 13 06:32 perl -> /var/packages/Perl/target/usr/bin/perl

/usr/local/lib/:
total 0
lrwxrwxrwx 1 root root   28 Aug 13 06:32 perl5 -> /var/packages/Perl/target/lib/perl5

/usr/local/etc/:
total 0