CODEWITHSUNDEEP
awksed
Data Mastery
Data Mastery

Reputation: 2095

Git URL - Pull out substring via Shell (awk & sed)?

I have got the following URL:

https://[email protected]/scm/smat/sma-mes-test.git

I need to pull out smat-mes-test and smat:

git config --local remote.origin.url|sed -n 's#.*/\([^.]*\)\.git#\1#p'

sma-mes-test

This works. But I also need the project name, which is smat

I am not really familiar to complex regex and sed, I was able to find the other command in another post here. Does anyone know how I am able to extract the smat value here?

Upvotes: 1

Views: 124

Answers (6)

petrus4
petrus4

Reputation: 614

string=$(config --local remote.origin.url | tail -c -21)

var1=$(echo "${string}" | cut -d'/' -f1)
var2=$(echo "${string}" | cut -d'/' -f2 | sed s'@\.git@@')

If you have multiple urls with variable lengths, this will not work, but if you only have the one, it will.

var1=smat
var2=sma-mes-test.git

If I did have something variable, personally I would replace all of the forward slashes with carriage returns, throw them into a file, and then export the last and second last lines with ed, which would give me the two last segments of the url.

Regular expressions literally give me a migraine headache, but as long as I can get everything on its' own line, I can quite easily bypass the need for them entirely.

Upvotes: 0

Enlico
Enlico

Reputation: 28470

Why not sed 's!.*/\(.*/.*\)!\1!'?

Upvotes: 0

anubhava
anubhava

Reputation: 785611

Your sed is pretty close. You can just extend it to capture 2 values and print them:

git config --local remote.origin.url |
sed -E 's~.*/([^/]+)/([^.]+)\.git$~\1 \2~'

smat sma-mes-test

If you want to populate shell variable using these 2 values then use this read command in bash:

read v1 v2 < <(git config --local remote.origin.url |
sed -E 's~.*/([^/]+)/([^.]+)\.git$~\1 \2~')

# check variable values
declare -p v1 v2
declare -- v1="smat"
declare -- v2="sma-mes-test"

Upvotes: 2

sseLtaH
sseLtaH

Reputation: 11237

Using sed

$ sed -E 's#.*/([^/]*)/#\1 #' input_file
smat sma-mes-test.git

Upvotes: 1

RavinderSingh13
RavinderSingh13

Reputation: 133640

With your shown samples please try following awk code. Simple explanation would be, setting field separator(s) as / and .git for all the lines and in main program printing 3rd last and 3nd last elements from the line.

your_git_command | awk -F'/|\\.git' '{print $(NF-2),$(NF-1)}'

Upvotes: 2

Daweo
Daweo

Reputation: 36630

I would harness GNU AWK for this task following way, let file.txt content be

https://[email protected]/scm/smat/sma-mes-test.git

then

awk 'BEGIN{FS="/"}{sub(/\.git$/,"",$NF);print $(NF-1),$NF}' file.txt

gives output

smat sma-mes-test

Explanation: I instruct GNU AWK that field separator is slash character, then I replace .git (observe that . is escaped to mean literal dot) adjacent to end ($) in last field ($NF), then I print 2nd from end field ($(NF-1)) and last field ($NF), which are sheared by space, which is default output field separator, if you wish to use other character for that purpose set OFS (output field separator) in BEGIN. If you want to know more about NF then read 8 Powerful Awk Built-in Variables – FS, OFS, RS, ORS, NR, NF, FILENAME, FNR

(tested in gawk 4.2.1)

Upvotes: 0

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