emacs - Hierarchical GTAGS TAG file -

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one liner: looking "hierarchical" tags file setup whereas if global cannot find tagsdb in gtagsdbpath directory climbs dir chain till finds another.

long liners:

i have project file structure

/vob/project-name/src/ ==> root of project src directory

under directory there subdirs like: ./utils, ./common, ./iplib, ./ipv6lib, ./subsystem1, ./subsystem2 etc

i work on subsystem1

the big tags file huge.

i have..

setenv  gtagsroot /vobs/project-name/src setenv  gtagsdbpath /vobs/project-name/src

these take 40mins build.

i have tags file in ./subsystem1/sre

currently have 2 shell files:

toptags :

setenv  gtagsroot /vobs/project-name/src setenv  gtagsdbpath /vobs/project-name/src

bottomtags:

setenv  gtagsroot /vobs/project-name/src/subsystem1/src setenv  gtagsdbpath /vobs/project-name/src/subsystem1/src

in way, can build top project file , bottomtags every , there churn is.

also, currently, when (setq ggtags-update-on-save nil) each time write file 3 processes spawned off not die. got stern e-mail sysadmin keeping 150 processes standing.

locate-dominating-file need.

(locate-dominating-file default-directory gtags-file-name)

will give name of closest enclosing directory containing file called gtags-file-name, or nil if there no such directory.


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