CODEWITHSUNDEEP
gitshellawk
xetra11
xetra11

Reputation: 8855

Git version one before latest version

I know how to receive the latest git version by using git describe --tags --abbrev=0. However in my special case I need the version ONE before.

If the latest version is v0.0.3 I need to get v0.0.2 for instance.

I tried to find a way to do so but my shell/git magic is weak.

Upvotes: 1

Views: 94

Answers (2)

RavinderSingh13
RavinderSingh13

Reputation: 133600

With awk along with your git command could you please try following.

git describe --tags --abbrev=0 | awk 'BEGIN{FS=OFS="."} {$NF-=1} 1'

Explanation: Passing git command's output to awk command as an input. In awk code BEGIN section setting field separator and output field separator as . for all lines. Then in main program deceasing 1 in last field of current line. 1 is one of the ways in awk to print current line.

Upvotes: 2

grg
grg

Reputation: 5884

git describe --tags --abbrev=0 HEAD^

The parent of the HEAD commit is HEAD^. Using --abbrev=0 as you already were prevents the output of the sha as part of the description, so only printing the first found tag.

$ git log --oneline
63fbe99 (HEAD -> master, tag: v0.0.2) Add c
3de8c2c Add b
98b2cc4 (tag: v0.0.1) Add a
1fe3ea8 (tag: v0.0.0) Initial commit

$ git describe --tags --abbrev=0
v0.0.2

$ git describe --tags --abbrev=0 HEAD^
v0.0.1

Upvotes: 4

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