Post-processing CMD of the install command to accommodate redirection of results

[k-oizumi-abel]

">" is not recognized as a redirect sign.
The deno.run command probably treats ">" as a string.

Proposals:

First draft

1. "> xxxx" and other parts are extracted using regular expressions to obtain the file name of the redirect destination
2. Specify "piped" to stdout and stderr during deno.run to enable the program to handle standard output
3. If a redirection was specified, Deno.writeFileSync saves the output to stdout

Pros

A single code can be used in a variety of environments.

Cons

Have to handle complex file names and redirects yourself. (>>, 2>>, 1>&2, etc.)

Second draft

If -p "cmd wc -c > /tmp/test.txt" is specified, start using /bin/sh as follows.

Deno.run({ cmd: ["/bin/sh", "-c", "wc -c data_files/xxx/xxx.zip > /tmp/test.txt"]})

Pros

/bin/sh handles redirects, so no need to implement your own processing.
If the function to send downloaded files as standard input is implemented, the string received with the -p option can be used as is.

Deno.run({ cmd: ["/bin/sh", "-c", "wc -c > /tmp/test.txt"], stdin: xxxx })

Cons

Need to change commands for each environment. (/bin/sh for Linux and Mac, cmd for Windows)