pkg_install(dependencies = FALSE) does not sequence package installation

[kevinushey]

Originally from rstudio/renv#1883.

---

It seems like pak does not perform sequencing of package installation when dependencies = FALSE. For example:

lib <- tempfile()
dir.create(lib)
.libPaths(lib)

install.packages("pak", repos = sprintf("https://r-lib.github.io/p/pak/stable/%s/%s/%s", .Platform$pkgType, R.Version()$os, R.Version()$arch))

pkgs <- unlist(tools::package_dependencies("rmarkdown", recursive = TRUE))
pkgs <- paste0(pkgs, "?source&nocache")

pak::pkg_install(
   pkg = pkgs,
   dependencies = FALSE
)

When I tried this, installation failed with:

> pak::pkg_install(
+    pkg = pkgs,
+    dependencies = FALSE
+ )
✔ Loading metadata database ... done
                                                                                            
→ Will install 25 packages.
→ Will download 25 CRAN packages (15.27 MB).
+ base64enc     0.1-3   👷🏽‍♂️🔧 ⬇ (7.83 kB)
+ bslib         0.8.0   👷🏽‍♀️ ⬇ (5.14 MB)
+ cachem        1.1.0   👷🏽🔧 ⬇ (27.19 kB)
+ cli           3.6.3   👷🏿‍♂️🔧 ⬇ (568.16 kB)
+ digest        0.6.37  👷🏼‍♀️🔧 ⬇ (232.31 kB)
+ evaluate      1.0.1   👷🏽‍♂️ ⬇ (34.87 kB)
+ fastmap       1.2.0   👷🏻‍♀️🔧 ⬇ (46.71 kB)
+ fontawesome   0.5.2   👷 ⬇ (1.28 MB)
+ fs            1.6.4   👷‍♀️🔧 ⬇ (1.20 MB)
+ glue          1.8.0   👷🏽‍♀️🔧 ⬇ (126.68 kB)
+ highr         0.11    👷🏿 ⬇ (13.85 kB)
+ htmltools     0.5.8.1 👷🏾🔧 ⬇ (135.13 kB)
+ jquerylib     0.1.4   👷 ⬇ (520.21 kB)
+ jsonlite      1.8.9   👷🏽🔧 ⬇ (1.06 MB)
+ knitr         1.48    👷🏻‍♀️ ⬇ (583.01 kB)
+ lifecycle     1.0.4   👷‍♀️ ⬇ (107.66 kB)
+ memoise       2.0.1   👷🏿‍♀️ ⬇ (17.85 kB)
+ mime          0.12    👷🏼🔧 ⬇ (12.56 kB)
+ R6            2.5.1   👷🏼‍♀️ ⬇ (63.42 kB)
+ rappdirs      0.3.3   👷🏼‍♀️🔧 ⬇ (12.29 kB)
+ rlang         1.1.4   👷🏿‍♀️🔧 ⬇ (767.04 kB)
+ sass          0.4.9   👷🏻‍♀️🔧 ⬇ (3.03 MB)
+ tinytex       0.53    👷‍♂️ ⬇ (35.25 kB)
+ xfun          0.48    👷🏽‍♂️🔧 ⬇ (164.96 kB)
+ yaml          2.3.10  👷🏿‍♀️🔧 ⬇ (94.56 kB)
ℹ Getting 25 pkgs (15.27 MB)
✔ Got evaluate 1.0.1 (source) (34.87 kB)                                                                                        
✔ Got knitr 1.48 (source) (583.01 kB)                                                                                           
✔ Got fontawesome 0.5.2 (source) (1.28 MB)                                                                                      
✔ Got xfun 0.48 (source) (164.96 kB)                                                                                            
✔ Got cachem 1.1.0 (source) (27.19 kB)                                                                                          
✔ Got lifecycle 1.0.4 (source) (107.66 kB)                                                                                         
✔ Got glue 1.8.0 (source) (126.68 kB)                                                                                              
✔ Got R6 2.5.1 (source) (63.42 kB)                                                                                                 
✔ Got base64enc 0.1-3 (source) (7.83 kB)                                                                                           
✔ Got jsonlite 1.8.9 (source) (1.06 MB)                                                                                            
✔ Got mime 0.12 (source) (12.56 kB)                                                                                                
✔ Got bslib 0.8.0 (source) (5.14 MB)                                                                                               
✔ Got sass 0.4.9 (source) (3.03 MB)                                                                                                
✔ Got digest 0.6.37 (source) (232.31 kB)                                                                                           
✔ Got fastmap 1.2.0 (source) (46.71 kB)                                                                                            
✔ Got cli 3.6.3 (source) (568.16 kB)                                                                                               
✔ Got htmltools 0.5.8.1 (source) (135.13 kB)                                                                                       
✔ Got jquerylib 0.1.4 (source) (520.21 kB)                                                                                         
✔ Got memoise 2.0.1 (source) (17.85 kB)                                                                                            
✔ Got rappdirs 0.3.3 (source) (12.29 kB)                                                                                           
✔ Got tinytex 0.53 (source) (35.25 kB)                                                                                             
✔ Got fs 1.6.4 (source) (1.20 MB)                                                                                                  
✔ Got yaml 2.3.10 (source) (94.56 kB)                                                                                              
✔ Got rlang 1.1.4 (source) (767.04 kB)                                                                                             
✔ Got highr 0.11 (source) (13.85 kB)                                                                                               
✔ Downloaded 25 packages (15.27 MB) in 890ms                                                                                       
ℹ Building bslib 0.8.0
ℹ Building evaluate 1.0.1
ℹ Building fontawesome 0.5.2
ℹ Building htmltools 0.5.8.1
ℹ Building jquerylib 0.1.4
ℹ Building jsonlite 1.8.9
ℹ Building knitr 1.48
ℹ Building tinytex 0.53
ℹ Building xfun 0.48
ℹ Building yaml 2.3.10
✖ Failed to build fontawesome 0.5.2 (505ms)       
Error:                                            
! error in pak subprocess
Caused by error in `stop_task_build(state, worker)`:
! Failed to build source package fontawesome.
Type .Last.error to see the more details.