Package: dh-elpa
Version: 2.1.5
Severity: normal

dh-elpa detects the `Package-Version' cookie from Elisp source files and
generates Debian version numbers to be used in the substitute variable
${elpa:Depends}.  However there is a small issue that it does not work
well with snapshot version numbers.

For example, say the Elisp source file contains the following line:
,----
| Package-Version: ((foo "1.0.0"))
`----

The generated corresponding Debian version would be
,----
| foo (>= 1.0.0)
`----

This usually works.  However, when the upstream does not have a tag
matching the source version, this would become an issue.  Take the
aforementioned foo as an example: if upstream does not have a tagged
version or the tagged version is lagging behind (e.g. 0.9), we should
usually use a package version combining the source version with a git
snapshot hash, e.g. 1.0.0~git20241101.dedbeef.  Unfortunately, this
version would not satisfy the Debian version requirement because in
Debian "1.0.0~" is less than "1.0.0".

dh-elpa should instead generate snapshot-friendly version number like
,----
| foo (>= 1.0.0~)
`----

Unfortunately, this would require another batch rebuild for all
packages, or this may cause reproducible test issues.


-- System Information:
Debian Release: 12.8
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 6.1.0-28-amd64 (SMP w/16 CPU threads; PREEMPT)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages dh-elpa depends on:
ii  debhelper               13.11.4
ii  emacs                   1:29.4+1-2~bpo12+1
ii  emacs-gtk [emacs]       1:29.4+1-2~bpo12+1
ii  libarray-utils-perl     0.5-3
ii  libconfig-tiny-perl     2.28-2
ii  libdebian-source-perl   0.122
ii  libdpkg-perl            1.21.22
ii  libfile-find-rule-perl  0.34-3
ii  libtext-glob-perl       0.11-3
ii  perl                    5.36.0-7+deb12u1

dh-elpa recommends no packages.

dh-elpa suggests no packages.

-- no debconf information

-- 
Regards,
Xiyue Deng

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