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 Topic: How to get path to a config file from the config file itself |
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VEG
Joined: 20 Dec 2020
Posts: 4
Location: Belarus
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 Posted: Sun 20 Dec '20 17:44 Post subject: How to get path to a config file from the config file itself |
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Currently, we have to define absolute path to the ServerRoot.
| Code: | Define SRVROOT "c:/Apps/Web/Apache64php80"
ServerRoot "${SRVROOT}" |
It might be not convenient. Is there a way to define this path relative to the current httpd.conf or relative to the httpd.exe?
I wish it were something like this:
| Code: | Define SRVROOT "${HTTPD_PATH}/../.."
ServerRoot "${SRVROOT}" |
or:
| Code: | Define SRVROOT "${HTTPD_DIR_PATH}/.."
ServerRoot "${SRVROOT}" |
Can it be done somehow? |
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tangent
Moderator
Joined: 16 Aug 2020
Posts: 348
Location: UK
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| Posted: Mon 21 Dec '20 23:29 Post subject: |
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I'm not aware of any built-in system variables that would let you do this.
However, you could do something like this in the configuration file to set ServerRoot at start up.
| Code: | # Define SRVROOT if APACHE_ROOT defined.
#
<IfDefine APACHE_ROOT>
Define SRVROOT ${APACHE_ROOT}
</IfDefine>
# Default SRVROOT if APACHE_ROOT not defined.
#
<IfDefine !APACHE_ROOT>
Define SRVROOT C:/Apache24
</IfDefine>
ServerRoot "${SRVROOT}" |
Then define an environment variable with the desired server root directory, and get Apache to pick that up using the -D option at start up, e.g.
| Code: | set APACHE_ROOT=C:/Apps/Web/Apache64php80
httpd -t -D APACHE_ROOT |
To pass this environment variable to an Apache service instance, you'd need to create the following type of registry entry for the service, viz:
Key: HKLM\SYSTEM\CurrentControlSet\Services\Apache2.4
Value Name: Environment
Type: REG_MULTI_SZ
Data: APACHE_ROOT=C:/Apps/Web/Apache64php80 and add " -D APACHE_ROOT" to the service ImagePath entry.
You could pass additional environment variables conditionally to the Apache configuration using a similar technique.
Last edited by tangent on Wed 13 Jan '21 16:11; edited 1 time in total |
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James Blond
Moderator
Joined: 19 Jan 2006
Posts: 7371
Location: Germany, Next to Hamburg
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| Posted: Tue 29 Dec '20 0:01 Post subject: |
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Additional to tangent post
Use httpd -S it will show the current variables. |
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