Add a `--watch` feature

[tusharmath]

Use rs-notify library to identify if the source files have changed and restart the server when it does.

Example Usage

tailcall start ./jp.graphql --watch

Technical Requirements

• Restart should happen automatically when the main config or any of the linked file changes.
• There should be no leaks in restarts and should happen seamlessly.
• Should not crash the server if there is a validation error.

[tusharmath]

/bounty 50$

[algora-pbc[bot]]

💎 $50 bounty • Tailcall Inc.

Steps to solve:

1. Start working: Comment /attempt #2688 with your implementation plan
2. Submit work: Create a pull request including /claim #2688 in the PR body to claim the bounty
3. Receive payment: 100% of the bounty is received 2-5 days post-reward. Make sure you are eligible for payouts

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Attempt	Started (GMT+0)	Solution
🔴 @neo773	Aug 14, 2024, 7:54:47 AM	WIP
🔴 @harshtech123	Aug 14, 2024, 10:34:00 AM	WIP
🔴 @akhilender-bongirwar	Aug 14, 2024, 1:02:57 PM	WIP
🔴 @onyedikachi-david	Aug 14, 2024, 2:01:16 PM	WIP
🟢 @beelchester	Aug 14, 2024, 2:55:39 PM	#2707

[harshtech123]

/attempt #2688

Options

• Cancel my attempt

[akhilender-bongirwar]

/attempt #2689

Options

• Cancel my attempt

[algora-pbc[bot]]

[!NOTE] The user @harshtech123 is already attempting to complete issue #2688 and claim the bounty. We recommend checking in on @harshtech123's progress, and potentially collaborating, before starting a new solution.

[onyedikachi-david]

/attempt #2688

Algora profile	Completed bounties	Tech	Active attempts	Options
@onyedikachi-david	3 tailcallhq bounties + 2 bounties from 1 project	JavaScript, Shell		Cancel attempt

[beelchester]

/attempt #2688

Algora profile	Completed bounties	Tech	Active attempts	Options
@beelchester	8 tailcallhq bounties	Rust, TypeScript, CSS & more		Cancel attempt

[algora-pbc[bot]]

💡 @beelchester submitted a pull request that claims the bounty. You can visit your bounty board to reward.

[algora-pbc[bot]]

@harshtech123: Reminder that in 1 days the bounty will become up for grabs, so please submit a pull request before then 🙏

[algora-pbc[bot]]

@onyedikachi-david: Reminder that in 1 days the bounty will become up for grabs, so please submit a pull request before then 🙏

[bnchi]

rs-notify doesn't work well with VIM or some other editors when watching for specific files : https://docs.rs/notify/latest/notify/#editor-behaviour

It's a bit tricky as well to watch for files that are linked in a @link directive because the src path is relative to the file they're defined in

[beelchester]

rs-notify doesn't work well with VIM or some other editors when watching for specific files : https://docs.rs/notify/latest/notify/#editor-behaviour

Yes, true. It may trigger 2 or more data change events on a single file modification. To fix this I have added a debounce delay in my PR (https://github.com/tailcallhq/tailcall/pull/2707), it ignores modification events for a specified time after the initial trigger to restart the server. It is working reliably well.