Setting PGPASSWORD environment variable for Postgres (psql) process executed by Inno Setup

Question

I needs to create a tablespace in Postgres with Inno Setup.

I had run this on the command line:

SET PGPASSWORD=P0stgres
"C:\Program Files\PostgreSQL\9.4\bin\psql.exe" -h localhost -p 5432 -U postgres -d postgres -c "CREATE TABLESPACE TABLETEST OWNER postgres LOCATION E'{app}\\PATHTEST\\Db'"

I tried this in Inno Setup, but it did not work:

[Run]
Filename: {sys}\cmd.exe; Parameters: "SET PGPASSWORD=P0stgres"
Filename: {sys}\cmd.exe; Parameters: ""C:\Program Files\PostgreSQL\9.4\bin\psql.exe" -h localhost -p 5432 -U postgres -d postgres -c "CREATE TABLESPACE TABLETEST OWNER postgres LOCATION E'{app}\\PATHTEST\\Db'""

Regards

Answer 1

I was able to do it work. Was a little mistake. The correct is:

[Run]
Filename: {cmd}; Parameters: "/K SET PGPASSWORD=P0stgres&""C:\Program Files\PostgreSQL\9.4\bin\psql.exe"" -h localhost -p 5432 -U postgres -d postgres -c ""CREATE TABLESPACE TABLETEST OWNER postgres LOCATION '{app}\PATHTEST\Db'""

Answer 2

I am able to do it. No space should be there between password and &. PGPASSWORD=password&

Filename: "cmd.exe"; Parameters: "/c set PGPASSWORD=my_db_user& ""psql"" -U my_db_user -d myappdb -a -q -f C:\\my\\Manager\\SQL\\Sequences.sql & pause"; Flags: runascurrentuser;

Answer 3

You have three problems:

• The cmd.exe needs /C switch before the command.
• The environment variable is not magically exported to the second cmd.exe instance that runs the psql.exe . You have to execute both commands within the same cmd.exe instance. One of the ways is using & "operator" (another way is using a wrapper batch file to execute both commands).
• The double-quotes (particularly those around the C:\\...\\psql.exe and CREATE TABLESPACE ... ) have to be doubled .
• Not a problem per se, but you should better use {cmd} constant instead of {sys}\\cmd.exe .

[Run]
Filename: "{cmd}"; Parameters: "/C SET PGPASSWORD=P0stgres& ""C:\Program Files\PostgreSQL\9.4\bin\psql.exe"" -h localhost -p 5432 -U postgres -d postgres -c ""CREATE TABLESPACE TABLETEST OWNER postgres LOCATION E'{app}\\PATHTEST\\Db'"""