Build failed when using both prometheus/node_exporter and prometheus/client_golang about procfs HOT 6 CLOSED

I was also caught out by this, whilst trying to update Debian's packaging for prometheus-node-exporter. Version 0.18.0 seems to require a pre-0.0.1 git snapshot of procfs, whilst version 0.18.1 requires exactly version 0.0.1 of procfs. Anything later than that (0.0.2+) breaks the build due to the removal of these top-level functions:

src/github.com/prometheus/node_exporter/collector/buddyinfo.go:58:24: c.fs.NewBuddyInfo undefined (type procfs.FS has no field or method NewBuddyInfo)
src/github.com/prometheus/node_exporter/collector/cpufreq_linux.go:83:23: c.fs.NewSystemCpufreq undefined (type sysfs.FS has no field or method NewSystemCpufreq)
src/github.com/prometheus/node_exporter/collector/ipvs_linux.go:109:24: c.fs.NewIPVSStats undefined (type procfs.FS has no field or method NewIPVSStats)
src/github.com/prometheus/node_exporter/collector/ipvs_linux.go:124:27: c.fs.NewIPVSBackendStatus undefined (type procfs.FS has no field or method NewIPVSBackendStatus)
src/github.com/prometheus/node_exporter/collector/netclass_linux.go:172:23: c.fs.NewNetClass undefined (type sysfs.FS has no field or method NewNetClass)

from procfs.

cc @pgier @discordianfish

from procfs.

@dswarbrick I had to bump the procfs slightly in node_exporter 0.18.1 to fix a parsing bug.

from procfs.

@SuperQ Thanks for the info. Will node_exporter be releasing a new version that builds against procfs 0.0.2, or will procfs re-add some top level function wrappers like they did in #170 ?

from procfs.

We'll probably update the node_exporter master to work with the latest procfs version sometime soon. A new release depends on what features we're working.

from procfs.

@SuperQ Update node_exporter should work, but it's likely that there're user out there which rely on removed methods.

The best way to fix this is in procfs, but re-adding removed methods and mark them as deprecated. If not, the changelog should be updated to insist the in-compatible change.

from procfs.