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Pass link prefixes to external markup parsers (#5201)

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* Pass environment variables for URL prefixes to external markup parser

Signed-off-by: Nicolas Lenz <nicolas@eisfunke.com>

* Document external markup link prefix environment variables

Signed-off-by: Nicolas Lenz <nicolas@eisfunke.com>

* Run format on link prefix changes

Signed-off-by: Nicolas Lenz <nicolas@eisfunke.com>
This commit is contained in:
Nicolas Lenz 2018-10-30 15:34:12 +01:00 committed by techknowlogick
parent e61c6cd3db
commit 220ee6ae42
2 changed files with 9 additions and 0 deletions
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4
docs/content/doc/advanced/config-cheat-sheet.en-us.md
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@ -359,6 +359,10 @@ IS_INPUT_FILE = false
- RENDER\_COMMAND: External command to render all matching extensions.
- IS\_INPUT\_FILE: **false** Input is not a standard input but a file param followed `RENDER_COMMAND`.
Two special environment variables are passed to the render command:
- `GITEA_PREFIX_SRC`, which contains the current URL prefix in the `src` path tree. To be used as prefix for links.
- `GITEA_PREFIX_RAW`, which contains the current URL prefix in the `raw` path tree. To be used as prefix for image paths.
## Other (`other`)
- `SHOW_FOOTER_BRANDING`: **false**: Show Gitea branding in the footer.

5
modules/markup/external/external.go vendored
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@ -76,6 +76,11 @@ func (p *Parser) Render(rawBytes []byte, urlPrefix string, metas map[string]stri
}
cmd := exec.Command(commands[0], args...)
cmd.Env = append(
os.Environ(),
"GITEA_PREFIX_SRC="+urlPrefix,
"GITEA_PREFIX_RAW="+strings.Replace(urlPrefix, "/src/", "/raw/", 1),
)
if !p.IsInputFile {
cmd.Stdin = rd
}