oracle/opengrok

[Golang] No function list in the navigate window

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#2378 opened on Oct 5, 2018

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 (6 comments) (1 reaction) (0 assignees)Java (4,060 stars) (747 forks)batch import
bughelp wanted

Description

tomcat:8.5.34
opengrok: 1.1-rc41

Universal Ctags 0.0.0(d0807887), Copyright (C) 2015 Universal Ctags Team
Universal Ctags is derived from Exuberant Ctags.
Exuberant Ctags 5.8, Copyright (C) 1996-2009 Darren Hiebert
  Optional compiled features: +wildcards, +regex, +iconv, +option-directory

I use opengrok, with default config to index golang source code, but there is no function list in the nagivate window,

I try to index with -o option:

./opengrok/bin/indexer.py \
    -a $OPENGROK/lib/opengrok.jar -- \
    -c /opt/ctags/bin/ctags \
    -o ctags.conf \
    -s $PWD/repo/src -d $PWD/repo/data -H -P -S -G \
    -W $PWD/configuration.xml \
    -U http://localhost:8080

and the ctags.conf is:

--langdef=golang
--langmap=golang:.go
--regex-golang=/func([ \t]+\([^)]+\))?[ \t]+([a-zA-Z0-9_]+)/\2/d,func/
--regex-golang=/var[ \t]+([a-zA-Z_][a-zA-Z0-9_]+)/\1/d,var/
--regex-golang=/type[ \t]+([a-zA-Z_][a-zA-Z0-9_]+)/\1/d,type/

but still doesn't work.

Any help? Thanks!

Contributor guide

Tech stack
gojavashell
Domain
searchtoolingdeveloper experience
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
needs investigation
Prerequisites
OpenGrok basicsctags configurationGo language
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
20
Research direction
Investigate why Go function list is not displayed in OpenGrok's navigate window. Start by examining the OpenGrok source code for ctags parsing in the 'opengrok indexer' module. Look at existing ctags configurations for other languages. Test with a simple Go file using the provided ctags regex. Check if the issue is specific to the version of Universal Ctags used. Consider adding native Go support without relying on ctags regex.