iwasakims commented on pull request #776:
URL: https://github.com/apache/bigtop/pull/776#issuecomment-843108293
@sekikn On my local CentOS 7, the `install_r_packages` worked regradless of
the patch. The fix looks just making the command fail if expected packages are
not found. Does this really fix the build failure of Spark in CI?
```
$ sudo /usr/bin/R -e "remove.packages(c('evaluate', 'rmarkdown', 'knitr',
'roxygen2', 'testthat', 'e1071'))"
$ /usr/bin/R -e 'library("knitr", character.only=TRUE, logical.return=TRUE)'
...
> library("knitr", character.only=TRUE, logical.return=TRUE)
[1] FALSE
Warning message:
In library("knitr", character.only = TRUE, logical.return = TRUE) :
there is no package called ‘knitr’
$ ./gradlew toolchain
...
Debug: Exec[install_r_packages](provider=posix): Executing '/usr/bin/R -e
"install.packages(c('devtools', 'evaluate', 'rmarkdown', 'knitr', 'roxygen2',
'testthat', 'e1071'), repos = 'http://cran.r-project.org/')"'
Debug: Executing '/usr/bin/R -e "install.packages(c('devtools', 'evaluate',
'rmarkdown', 'knitr', 'roxygen2', 'testthat', 'e1071'), repos =
'http://cran.r-project.org/')"'
...
$ /usr/bin/R -e 'library("knitr", character.only=TRUE, logical.return=TRUE)'
...
> library("knitr", character.only=TRUE, logical.return=TRUE)
[1] TRUE
```
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