Summary: In Mercurial 3.2 the `locate` command was deprecated in favor of `files` command. This change updates the DiffusionLowLevelMercurialPathsQuery command to conditionally use `locate` or `files` based on the version of Mercurial used. Closes T7375 Test Plan: My test/develop Phabricator instance is setup to run Mercurial 3.5.1. The test procedure to verify valid file listings are being returned: 1. I navigated to `http://192.168.0.133/conduit/method/diffusion.querypaths/` 2. I populated the following fields: - path: `"/"` - commit: `"d721d5b57fc9ef72e47ff9d4e0c583d74a46590c"` - callsign: `"HGTEST"` 3. I submitted request and verified that result contained all files in the repository: ``` { "0": "README", "1": "alpha/beta/trifle", "2": "test/Chupacabra.cow", "3": "test/socket.ks" } ``` I repeated the above steps after setting up Mercurial 2.6.2, which I installed in the following manner: 1. I downloaded Mercurial 2.6.2 source and run `make local` which will only compile it to work from its own directory (`/opt/mercurial-2.6.2`) 2. I linked `/usr/local/bin/hg -> /opt/mercurial-2.6.2/hg` (there's also a `/usr/bin/hg` which is a link to `/usr/local/bin/hg`) 3. I navigated to my home directory and verify that `hg --version` returns 2.6.2. 4. I restarted phabricator services (probably unnecessary). With the Multimeter application active 1. I verified that `/usr/local/bin/hg` referred to version 2.6 2. I ran the same conduit call from the conduit application 3. I verified that `http://192.168.0.133/multimeter/?type=2&group=label` incremented values for `bin.hg locate`. 4. I swapped out mercurial versions for 3.5.1 5. I ran the same conduit call from the conduit application 6. I verified that `http://192.168.0.133/multimeter/?type=2&group=label` incremented values for `bin.hg files` Reviewers: epriestley, #blessed_reviewers Reviewed By: epriestley, #blessed_reviewers Subscribers: Korvin Maniphest Tasks: T7375 Differential Revision: https://secure.phabricator.com/D14253