Git sign off previous commits?

Question

I was wondering how to sign(-s) off previous commits that I have made in the past in git?

Answer 1

I had a similar issue. Here, thanks to Robin Johnson from Gentoo Linux is a trick to add the signature to all my previous unpushed commits:

$ git pull && git rebase --gpg-sign --force-rebase origin/master && git push --signed
Already up-to-date.
Current branch master is up to date, rebase forced.
First, rewinding head to replay your work on top of it...
Applying: sci-biology/KING: new package
Applying: dev-lang/yaggo: version bump, fix install procedure
Applying: sci-libs/htslib: version bump
Applying: sci-biology/bcftools: version bump
Applying: sci-biology/samtools: version bump
Applying: sci-biology/libBigWig: new release with io.h renamed to bigWigIO.h
Applying: sci-biology/MaSuRCA: add more URLs to HOMEPAGE
Applying: sci-biology/SPAdes: update comments on bundled dev-libs/boost
Applying: sci-biology/khmer: added a comment how to proceed with src_compile()
Applying: sci-biology/picard: version bump
Applying: sci-biology/ruffus: pint EGIT_REPO_URI to the archive URL of code.google.com
Applying: sci-biology/vcftools: the 0.1.15_pre release was just renamed to 0.1.15 by upstream
Applying: sci-biology/nanopolish: new package
Applying: sci-biology/libBigWig: version bump
Counting objects: 75, done.
Delta compression using up to 2 threads.
Compressing objects: 100% (75/75), done.
Writing objects: 100% (75/75), 14.51 KiB | 0 bytes/s, done.
Total 75 (delta 55), reused 0 (delta 0)
remote: To github.com:gentoo/sci.git
remote:    29c5e3f5d..b37457700  master -> master
To git+ssh://git.gentoo.org/proj/sci.git
   29c5e3f5d..b37457700  master -> master
$