wcst_import - new variables which can be used in hooks

[Bang Pham Huu]

There are 2 new variables which can be used in hooks inside the ingredients file:

• WCST_INPUT_FILE: absolute path to original input file name currently processed
• WCST_INGESTED_FILE: absolute path to file successfully imported (after hook* only)

For example:

"hooks": [
    {
      "description": "resized input files.",
      "when": "before_ingestion",
      "cmd": "gdalwarp -of GTiff -tr 5000 5000 -overwrite \"$WCST_INPUT_FILE\" \"$WCST_INPUT_FILE.resized\"",
      "abort_on_error": true,
      "replace_path": ["$WCST_INPUT_FILE.resized"]
    },
    {
      "description": "remove resized files.",
      "when": "after_ingestion",
      "cmd": "rm -f $WCST_INPUT_FILE"
    }
]

Also, add the descriptions for these environment variables in the doc

• PATH
• LD_LIBRARY_PATH
• PWD
• LOGNAME
• GROUPS